What are the cheapest airlines flying from Chicago to Washington, D.C. round-trip?

Flying on Spirit Airlines is currently your cheapest option to Washington, D.C., with prices starting at $172. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $173 and $177, respectively. These flights start at 25% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Chicago to Washington, D.C. one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $76. However, be on the lookout for offers from Spirit Airlines and Southwest, as they are both options that can get you from Chicago to Washington, D.C. for a low price.

What are the most popular routes from Chicago to Washington, D.C.?

The most popular flight routes from Chicago to Washington, D.C. are Chicago O'Hare Intl - Washington, D.C. Dulles Intl, Chicago O'Hare Intl - Washington, D.C. Reagan-National and Chicago O'Hare Intl - Baltimore/Washington.

What are the cheapest flights from Chicago to Washington, D.C.?

The cheapest flight price from Chicago to Washington, D.C. is $108. On average you can expect to pay $1,158. The most popular route, (Chicago O'Hare Intl - Washington, D.C. Dulles Intl), can usually be booked for $161.

What are the most reliable airlines from Chicago to Washington, D.C.?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to Washington, D.C. on time: Air China (89%), Ethiopian Air (86%), Austrian Airlines (84%).

What are the most popular airlines that fly from Chicago to Washington, D.C.?

The most popular airlines flying from Chicago to Washington, D.C. are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Chicago to Washington, D.C.?

Flights from Chicago to Washington, D.C. are found to be more expensive on Sunday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

How far in advance should I book a flight from Chicago to Washington, D.C.?

To save on the cost of your flight from Chicago to Washington, D.C., book at least 33 days before your planned departure. Booking around this time can save you about 34% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $223 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $399.

What is the cheapest month to fly from Chicago to Washington, D.C.?

Flights from Chicago to Washington, D.C. lean towards being more expensive in June. Prices are generally better when you fly from Chicago to Washington, D.C. in September, with the cheapest ticket starting at $62.

Most accurate provider : When it comes to deals on Chicago-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Chicago-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Chicago to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Chicago to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Chicago to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Washington, D.C..

Can I find deals for business class flights from Chicago to Washington, D.C.?

Yes. Cheapflights offers flight deals from Chicago to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$75+ Flights from Chicago to Washington, D.C.

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Find cheap flights from Chicago to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Chicago to Washington, D.C. are usually found in September or August, booked 67 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Chicago to Washington, D.C.

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$172 (FlightHub)
One-way from	$76 (Trip.com)
Popular in	June
Cheapest in	September
Average price	$254
Good round-trip deal	$188 or less
Good one-way deal	$84 or less

Provider with most accurate pricing for Chicago (CHI)-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Chicago (CHI)-Washington, D.C. (WAS) flights.

Search Deals

From Chicago (CHI) to Washington, D.C. (WAS)

Search Deals

One-way flight from Chicago (CHI) to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 3% potential increase in price ($8 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from Chicago (CHI) to Washington, D.C. (WAS).

Search Deals

Price to beat on a one-way flight from Chicago (CHI) to Washington, D.C. (WAS).

Search Deals

Find flight deals from Chicago to Washington, D.C.

Cheapest flights from Chicago to Washington, D.C.
Explore the most affordable flight options available from Chicago to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Tue 5/69:34 amMDW - BWI

1 stop9h 22mFrontier

Thu 5/81:38 pmBWI - MDW

Nonstop2h 07mFrontier

Deal found 4/17

$172

Sat 5/1712:41 pmORD - BWI

1 stop9h 00mSpirit Airlines

Mon 5/197:57 pmBWI - ORD

1 stop13h 53mSpirit Airlines

Deal found 4/17

$172

Fri 5/305:45 amMDW - BWI

Nonstop1h 45mSouthwest

Sun 6/16:20 amBWI - MDW

Nonstop2h 05mSouthwest

Deal found 4/17

$177

Fri 5/301:50 pmORD - BWI

Nonstop1h 55mSouthwest

Mon 6/210:35 amBWI - ORD

Nonstop2h 15mSouthwest

Deal found 4/17

$177

Wed 5/1411:10 amORD - BWI

1 stop7h 46mFrontier

Sat 5/176:45 amBWI - ORD

1 stop7h 56mFrontier

Deal found 4/17

$178

Thu 5/1510:33 amORD - BWI

Nonstop1h 46mMultiple Airlines

Tue 7/87:20 amBWI - ORD

1 stop10h 18mMultiple Airlines

Deal found 4/17

$179

Wed 5/286:00 amORD - DCA

Nonstop1h 54mAmerican Airlines

Fri 5/306:00 amDCA - ORD

Nonstop2h 20mAmerican Airlines

Deal found 4/17

$179

Wed 5/285:25 pmMDW - DCA

Nonstop1h 55mSouthwest

Fri 5/306:55 amDCA - MDW

Nonstop2h 00mSouthwest

Deal found 4/17

$179

Sat 5/316:10 amMDW - IAD

1 stop8h 54mFrontier

Tue 6/35:15 amIAD - MDW

1 stop11h 24mFrontier

Deal found 4/17

$179

Thu 5/16:00 amORD - IAD

1 stop7h 23mFrontier

Sun 5/43:32 pmIAD - ORD

1 stop8h 39mFrontier

Deal found 4/17

$180

Thu 5/18:03 pmMDW - DCA

1 stop24h 56mFrontier

Wed 5/76:00 pmDCA - MDW

1 stop26h 08mFrontier

Deal found 4/17

$181

Sat 5/243:13 pmORD - DCA

Nonstop2h 02mUnited Airlines

Sun 5/256:00 amDCA - ORD

1 stop5h 44mUnited Airlines

Deal found 4/17

$186

Best flights from Chicago to Washington, D.C.
Discover carefully curated flight deals from Chicago to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2025.

Sat 5/1712:41 pmORD - BWI

1 stop9h 00mSpirit Airlines

Mon 5/197:57 pmBWI - ORD

1 stop13h 53mSpirit Airlines

Deal found 4/16

$172

Thu 5/19:51 amMDW - BWI

Nonstop1h 57mFrontier

Fri 5/910:03 amBWI - MDW

Nonstop2h 06mFrontier

Deal found 4/17

$173

Fri 5/237:50 pmMDW - BWI

Nonstop1h 50mSouthwest

Mon 5/268:05 amBWI - MDW

Nonstop2h 00mSouthwest

Deal found 4/16

$177

Thu 5/1510:33 amORD - BWI

Nonstop1h 46mMultiple Airlines

Tue 7/87:20 amBWI - ORD

1 stop10h 18mMultiple Airlines

Deal found 4/17

$179

Wed 5/286:00 amORD - DCA

Nonstop1h 54mAmerican Airlines

Fri 5/306:00 amDCA - ORD

Nonstop2h 20mAmerican Airlines

Deal found 4/17

$179

Sat 5/243:13 pmORD - DCA

Nonstop2h 02mUnited Airlines

Sun 5/256:00 amDCA - ORD

1 stop5h 44mUnited Airlines

Deal found 4/17

$186

Wed 6/46:00 amMDW - BWI

1 stop5h 47mDelta

Wed 6/44:47 pmBWI - MDW

1 stop5h 40mDelta

Deal found 4/16

$191

Thu 9/48:40 amORD - DCA

1 stop6h 33mJetBlue

Tue 9/910:00 amDCA - ORD

1 stop8h 35mJetBlue

Deal found 4/17

$203

Fri 6/68:36 pmMDW - IAD

2 stops23h 17mAllegiant Air

Sun 6/83:58 pmIAD - MDW

1 stop16h 17mAllegiant Air

Deal found 4/16

$246

Fri 5/301:50 pmORD - BWI

Nonstop1h 55mSouthwest

Mon 6/210:35 amBWI - ORD

Nonstop2h 15mSouthwest

Deal found 4/17

$177

Wed 5/1411:10 amORD - BWI

1 stop7h 46mFrontier

Sat 5/176:45 amBWI - ORD

1 stop7h 56mFrontier

Deal found 4/17

$178

Tue 5/131:29 pmORD - IAD

Nonstop2h 01mUnited Airlines

Sat 5/245:10 pmIAD - ORD

Nonstop2h 27mUnited Airlines

Deal found 4/16

$193

Last-minute flights from Chicago to Washington, D.C.
Discover last-minute flight deals from Chicago to Washington, D.C.. Data last updated April 17, 2025 and is based on user searches.

Wed 4/239:28 amORD - BWI

1 stop10h 17mFrontier

Thu 4/248:20 amBWI - ORD

1 stop6h 44mFrontier

Deal found 4/17

$188

Wed 4/236:20 amMDW - BWI

Nonstop1h 45mSouthwest

Thu 4/248:55 pmBWI - MDW

Nonstop2h 05mSouthwest

Deal found 4/16

$317

Wed 4/237:00 amORD - BWI

Nonstop1h 54mUnited Airlines

Thu 4/246:15 amBWI - ORD

Nonstop2h 17mUnited Airlines

Deal found 4/16

$317

Thu 4/248:11 amORD - IAD

1 stop5h 51mFrontier

Sat 4/265:35 pmIAD - ORD

1 stop7h 01mFrontier

Deal found 4/16

$188

Thu 4/248:01 pmMDW - DCA

1 stop15h 08mFrontier

Sun 4/277:00 amDCA - MDW

1 stop13h 06mFrontier

Deal found 4/16

$221

Fri 4/255:36 pmORD - BWI

1 stop5h 23mMultiple Airlines

Thu 5/88:10 amBWI - ORD

Nonstop2h 14mMultiple Airlines

Deal found 4/17

$172

Fri 4/256:15 amMDW - BWI

Nonstop1h 50mFrontier

Fri 5/910:03 amBWI - MDW

Nonstop2h 06mFrontier

Deal found 4/17

$184

Fri 4/255:23 pmORD - DCA

1 stop17h 46mFrontier

Sun 4/277:00 amDCA - ORD

1 stop17h 38mFrontier

Deal found 4/17

$221

Sat 4/2611:45 amORD - BWI

1 stop5h 47mSpirit Airlines

Wed 4/307:40 pmBWI - ORD

1 stop13h 24mSpirit Airlines

Deal found 4/17

$274

Sat 4/266:45 pmORD - BWI

Nonstop2h 04mAmerican Airlines

Sun 5/47:30 amBWI - ORD

Nonstop2h 10mAmerican Airlines

Deal found 4/17

$307

Sat 4/268:27 pmORD - DCA

Nonstop2h 08mAmerican Airlines

Sun 5/46:45 amDCA - ORD

Nonstop2h 09mAmerican Airlines

Deal found 4/17

$307

Sun 4/274:00 pmMDW - IAD

1 stop15h 18mFrontier

Thu 5/19:14 amIAD - MDW

1 stop14h 26mFrontier

Deal found 4/17

$210

One-way flights from Chicago to Washington, D.C.
Search for one-way flight options from Chicago to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated April 17, 2025.

Mon 5/126:15 amMDW - BWI

Nonstop1h 58mFrontier

Deal found 4/16

$76

Thu 6/1210:19 amORD - BWI

Nonstop1h 54mSpirit Airlines

Deal found 4/16

$78

Sat 5/247:55 pmMDW - BWI

Nonstop1h 50mSouthwest

Deal found 4/16

$81

Sat 5/107:01 amORD - BWI

Nonstop1h 58mAmerican Airlines

Deal found 4/16

$81

Thu 5/81:19 pmMDW - IAD

1 stop26h 17mFrontier

Deal found 4/16

$87

Sun 5/114:15 pmORD - IAD

1 stop23h 21mFrontier

Deal found 4/16

$87

Fri 6/65:20 pmORD - IAD

1 stop20h 12mMultiple Airlines

Deal found 4/17

$88

Sat 5/310:22 amORD - BWI

1 stop5h 17mFrontier

Deal found 4/17

$89

Sat 5/171:30 pmORD - BWI

Nonstop2h 00mSouthwest

Deal found 4/17

$90

Sat 5/318:17 pmORD - DCA

Nonstop2h 01mAmerican Airlines

Deal found 4/17

$90

Sat 5/316:00 amMDW - DCA

Nonstop1h 50mSouthwest

Deal found 4/16

$90

Wed 5/286:00 amORD - DCA

1 stop14h 59mFrontier

Deal found 4/17

$97

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 5/17

12:41 pm-10:41 pm

1 stop9h 00m

Baltimore/Washington

Mon 5/19

7:57 pm-8:50 am

1 stop13h 53m

$172

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Thu 5/1

9:51 am-12:48 pm

Nonstop1h 57m

Baltimore/Washington

Fri 5/9

10:03 am-11:09 am

Nonstop2h 06m

$173

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Fri 5/23

7:50 pm-10:40 pm

Nonstop1h 50m

Baltimore/Washington

Mon 5/26

8:05 am-9:05 am

Nonstop2h 00m

$177

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Fri 5/30

1:50 pm-4:45 pm

Nonstop1h 55m

Baltimore/Washington

Mon 6/2

10:35 am-11:50 am

Nonstop2h 15m

$177

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 5/14

11:10 am-7:56 pm

1 stop7h 46m

Baltimore/Washington

Sat 5/17

6:45 am-1:41 pm

1 stop7h 56m

$178

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Sat 5/24

8:04 am-4:04 pm

1 stop7h 00m

Washington, D.C. Dulles Intl

Wed 5/28

5:15 am-2:22 pm

1 stop10h 07m

$178

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 5/15

10:33 am-1:19 pm

Nonstop1h 46m

Baltimore/Washington

Tue 7/8

7:20 am-4:38 pm

1 stop10h 18m

$179

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Wed 5/28

6:00 am-8:54 am

Nonstop1h 54m

Washington, D.C. Reagan-National

Fri 5/30

6:00 am-7:20 am

Nonstop2h 20m

$179

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Wed 5/28

5:25 pm-8:20 pm

Nonstop1h 55m

Washington, D.C. Reagan-National

Fri 5/30

6:55 am-7:55 am

Nonstop2h 00m

$179

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Sat 5/31

6:10 am-4:04 pm

1 stop8h 54m

Washington, D.C. Dulles Intl

Tue 6/3

5:15 am-3:39 pm

1 stop11h 24m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 57 results

...

Compare providers for flights from Chicago to Washington, D.C.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Washington, D.C. in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Chicago-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Chicago-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Chicago to Washington, D.C. flights

Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to Washington, D.C. trip

Airlines

British Airways

BA offers complimentary hot meals and beverages in economy, enhancing short-haul comfort.

BA's Executive Club offers free seat selection for mid-tier status, even on economy fares.

Read more about British Airwaysby Gabriel Leigh

United Airlines

United's Economy Plus offers extra legroom, ideal for added comfort on short flights.

United's MileagePlus allows pooling miles, useful for family travel.

Read more about United Airlinesby Harriet Baskas

Airports

ORD

At ORD, expect long walks between terminals. Use the free shuttle train outside security for faster transfers between terminals.

DCA

DCA is easily accessible via the D.C. Metro. The airport has its own Metro stop on the Yellow and Blue lines, making it convenient and affordable.

IAD

IAD is connected to D.C. via the Silver Line Metro. The station is about five minutes from the main terminal, offering a cheap transit option.

Our travel experts

Gabriel Leigh

Expert on British Airways

Harriet Baskas

Expert on United Airlines

Ramsey Qubein

Expert on ORD and IAD

Emily Zemler

Expert on DCA

Best time to book a flight from Chicago to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Chicago with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Washington, D.C.

How far ahead should I book a flight from Chicago to Washington, D.C.?

The price you pay for your flight from Chicago to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of $309). Flying from Chicago to Washington, D.C. in June is currently the most expensive (average of $383). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to WAS?

When flying from Chicago to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 50% versus a flight at noon.

What is the cheapest day to fly from Chicago to Washington, D.C.?

Travelers seeking maximum savings on their Chicago to Washington, D.C. flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to Washington, D.C.

The most flights from CHI to WAS are scheduled on a Wednesday (81 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (28 on average).

Rainfall in Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Chicago to Washington, D.C. by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,887 reviews

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,280 reviews

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,916 reviews

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,667 reviews

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

JetBlue

7.3

Good

2,926 reviews

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

What are the cheapest airlines flying from Chicago to Washington, D.C. round-trip?
Flying on Spirit Airlines is currently your cheapest option to Washington, D.C., with prices starting at $172. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $173 and $177, respectively. These flights start at 25% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Chicago to Washington, D.C. one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $76. However, be on the lookout for offers from Spirit Airlines and Southwest, as they are both options that can get you from Chicago to Washington, D.C. for a low price.
What are the most popular routes from Chicago to Washington, D.C.?
The most popular flight routes from Chicago to Washington, D.C. are Chicago O'Hare Intl - Washington, D.C. Dulles Intl, Chicago O'Hare Intl - Washington, D.C. Reagan-National and Chicago O'Hare Intl - Baltimore/Washington.
What are the most reliable airlines from Chicago to Washington, D.C.?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to Washington, D.C. on time: Air China (89%), Ethiopian Air (86%), Austrian Airlines (84%).
What are the cheapest flights from Chicago to Washington, D.C.?
The cheapest flight price from Chicago to Washington, D.C. is $108. On average you can expect to pay $1,158. The most popular route, (Chicago O'Hare Intl - Washington, D.C. Dulles Intl), can usually be booked for $161.
Can I find deals for flights from Chicago to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Chicago to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Chicago to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Washington, D.C..
Can I find deals for business class flights from Chicago to Washington, D.C.?
Yes. Cheapflights offers flight deals from Chicago to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Chicago to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of $309). Flying from Chicago to Washington, D.C. in June is currently the most expensive (average of $383). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Arlington

Alexandria

Fairfax

Tysons

Springfield

Woodbridge

Rockville

Fredericksburg

Gaithersburg

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Top 6 airlines flying from Chicago to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$54	Average$164	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$101	Average$174	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$109	Average$292	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$140	Average$289	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$166	Average$273	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$174	Average$298	FlexibilityNo cancel fee	On-time69%

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$75+ Cheap flights from Chicago (CHI) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/19. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Chicago to Washington, D.C. are usually found in September or August, booked 67 days in advance, depart on a Thursday or Friday and return on a Wednesday

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Cheapest flights from Chicago to Washington, D.C.Explore the most affordable flight options available from Chicago to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Explore the most affordable flight options available from Chicago to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

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Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Washington, D.C. in April.

The best insider tips for Chicago to Washington, D.C. flights

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Best time to book a flight from Chicago to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Chicago with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Washington, D.C.

How far ahead should I book a flight from Chicago to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Washington, D.C.. Price data was last updated on April 11, 2025.

What is the cheapest month to book a flight from Chicago to Washington, D.C.?

What is the cheapest time of day to fly from CHI to WAS?

Find hourly flight availability from Chicago to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

What is the cheapest day to fly from Chicago to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Washington, D.C.. Price data was last updated on March 30, 2025.

Weekly flight availability from Chicago to Washington, D.C.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Chicago to Washington, D.C. round-trip?

What are the cheapest airlines to fly from Chicago to Washington, D.C. one-way?

What are the most popular routes from Chicago to Washington, D.C.?

What are the most reliable airlines from Chicago to Washington, D.C.?

What are the cheapest flights from Chicago to Washington, D.C.?

Can I find deals for flights from Chicago to Washington, D.C. that include hotel bookings?

How can I find direct flights from Chicago to Washington, D.C.?

Can I find deals for business class flights from Chicago to Washington, D.C.?

What is the cheapest month to book a flight from Chicago to Washington, D.C.?

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Top 6 airlines flying from Chicago to Washington, D.C.

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Cheapest flights from Chicago to Washington, D.C.
Explore the most affordable flight options available from Chicago to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.