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Washington, D.C.

$54+ Cheap flights from Illinois 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — WAS
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Illinois to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

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

Cheapest flights from Illinois to Washington, D.C.
Explore the most affordable flight options available from Illinois to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/612:51 pmMDW - BWI
Nonstop1h 52mFrontier
Mon 12/94:18 pmBWI - MDW
Nonstop2h 04mFrontier
Deal found 11/20$116
This CheapOair deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/910:59 amORD - BWI
1 stop21h 11mFrontier
Mon 12/1610:47 amBWI - ORD
1 stop5h 56mFrontier
Deal found 11/19$118
This FlightHub deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/45:02 pmSTL - BWI
1 stop24h 05mFrontier
Mon 12/99:15 amBWI - STL
1 stop15h 09mFrontier
Deal found 11/19$118
This Frontier deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/67:15 amMDW - DCA
1 stop8h 44mFrontier
Mon 12/91:01 pmDCA - MDW
1 stop12h 12mFrontier
Deal found 11/19$138
This Frontier deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/137:00 amMDW - IAD
1 stop10h 19mFrontier
Wed 12/183:25 pmIAD - MDW
1 stop6h 52mFrontier
Deal found 11/19$138
This Frontier deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1310:59 amORD - IAD
1 stop6h 20mFrontier
Wed 12/183:25 pmIAD - ORD
1 stop7h 20mFrontier
Deal found 11/19$138
This Trip.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/97:25 amORD - DCA
1 stop27h 36mFrontier
Wed 12/111:01 pmDCA - ORD
1 stop25h 59mFrontier
Deal found 11/19$144
This Cheapflightsfares deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/311:51 amORD - BWI
1 stop9h 04mSpirit Airlines
Tue 12/1012:20 pmBWI - ORD
1 stop8h 55mSpirit Airlines
Deal found 11/20$148
This Priceline deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/186:55 amORD - BWI
1 stop6h 42mMultiple Airlines
Wed 1/87:55 amBWI - ORD
1 stop7h 41mMultiple Airlines
Deal found 11/19$150
This Southwest deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/185:30 pmMDW - BWI
Nonstop1h 50mSouthwest
Wed 1/810:35 amBWI - MDW
Nonstop2h 10mSouthwest
Deal found 11/19$154
This Southwest deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:45 amORD - BWI
Nonstop1h 55mSouthwest
Wed 1/1512:35 pmBWI - ORD
Nonstop2h 25mSouthwest
Deal found 11/20$168
This American Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/188:35 amORD - BWI
Nonstop2h 01mAmerican Airlines
Tue 1/711:51 amBWI - ORD
Nonstop2h 21mAmerican Airlines
Deal found 11/18$173

Find flights from Illinois to Washington, D.C. within your budget

Customize your flight search to find flights from Illinois to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Fri 1/17

1:04 pm-3:59 pm

Nonstop1h 55m

Baltimore/Washington

Mon 1/20

7:53 pm-9:05 pm

Nonstop2h 12m

$115

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Mon 12/9

10:59 am-9:10 am

1 stop21h 11m

Baltimore/Washington

Mon 12/16

10:47 am-3:43 pm

1 stop5h 56m

$118

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Wed 12/4

5:02 pm-6:07 pm

1 stop24h 05m

Baltimore/Washington

Mon 12/9

9:15 am-11:24 pm

1 stop15h 09m

$118

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 5/7

6:15 am-12:37 pm

1 stop5h 22m

Baltimore/Washington

Tue 5/13

4:15 pm-10:21 pm

1 stop7h 06m

$129

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Fri 1/10

10:59 am-6:18 pm

1 stop6h 19m

Washington, D.C. Dulles Intl

Mon 1/13

8:15 am-10:23 pm

1 stop15h 08m

$132

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 2/6

7:25 am-9:59 pm

1 stop13h 34m

Washington, D.C. Reagan-National

Sun 2/9

6:00 pm-12:32 am

1 stop7h 32m

$138

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Tue 1/14

8:15 am-9:56 pm

1 stop12h 41m

Washington, D.C. Reagan-National

Sun 1/19

6:00 pm-12:17 am

1 stop7h 17m

$138

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Fri 12/13

7:00 am-6:19 pm

1 stop10h 19m

Washington, D.C. Dulles Intl

Wed 12/18

3:25 pm-9:17 pm

1 stop6h 52m

$138

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Mon 2/10

8:20 am-11:17 am

Nonstop1h 57m

Baltimore/Washington

Wed 2/12

11:51 am-1:12 pm

Nonstop2h 21m

$143

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Tue 1/7

10:30 am-1:15 pm

Nonstop1h 45m

Baltimore/Washington

Sat 1/11

7:00 pm-8:10 pm

Nonstop2h 10m

$144

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Illinois 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.

Travel insights for flights from Illinois to Washington, D.C.

Get recent, data-driven insights about flights from Illinois to Washington, D.C. including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Washington, D.C. (average of $300). Flying from Illinois to Washington, D.C. in June is currently the most expensive (average of $376). 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 IL to WAS?

Find hourly flight availability from Illinois 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 November 20, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Washington, D.C. as you normally would.

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

Explore weekly flight availability from Illinois to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 20, 2024.

The most flights from USIL to WAS are scheduled on a Monday (71 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in Washington, D.C. by month

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

Plan your trip to Washington, D.C. by taking into account the average temperature totals 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 insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated November 20, 2024.
See what other customers who have flown with Frontier, Delta and American Airlines from Illinois to Washington, D.C. have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Porter Airlines
7.8
Good
288 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Air Transat
7.8
Good
389 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 to fly from Illinois to Washington, D.C. one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $54. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from Illinois to Washington, D.C. for a low price.

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

    Most travelers choose Chicago O'Hare Intl - Baltimore/Washington, Chicago O'Hare Intl - Washington, D.C. Dulles Intl or Chicago O'Hare Intl - Washington, D.C. Reagan-National when deciding on the best route from Illinois to Washington, D.C..

  • What are the most reliable airlines from Illinois 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 Illinois to Washington, D.C. on time: Emirates (100%), Air China (100%), Avianca (97%).

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

    On average you can expect to pay $802 for a flight from Illinois to Washington, D.C.. The cheapest flight overall is $114 while the most popular route, (Chicago O'Hare Intl - Baltimore/Washington) is currently priced at $127.

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

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

  • How can I find direct flights from Illinois 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 Illinois to Washington, D.C..

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

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Washington, D.C.?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Washington, D.C. (average of $300). Flying from Illinois to Washington, D.C. in June is currently the most expensive (average of $376). 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.

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Alternative routes for Illinois to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
Dallas/Fort Worth to Dulles Intl flights
Boston to Dulles Intl flights
Dallas/Fort Worth to Reagan-National flights
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Boston to Reagan-National flights
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San Francisco to Dulles Intl flights
San Francisco to Reagan-National flights
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Seattle to Reagan-National flights
O'Hare Intl to Dulles Intl flights
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O'Hare Intl to Reagan-National flights
Orlando to Dulles Intl flights
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Denver to Reagan-National flights
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George Bush Intcntl to Dulles Intl flights
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Austin to Dulles Intl flights
LaGuardia to Dulles Intl flights
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Newark to Reagan-National flights
Fort Lauderdale to Reagan-National flights
Miami to Dulles Intl flights
John F Kennedy Intl to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
John F Kennedy Intl to Reagan-National flights
Tampa to Reagan-National flights
Minneapolis to Reagan-National flights
Fort Lauderdale to Dulles Intl flights
San Diego to Dulles Intl flights
Minneapolis to Dulles Intl flights
Detroit to Reagan-National flights
Sky Harbor Intl to Dulles Intl flights
Ontario to Reagan-National flights
Midway to Dulles Intl flights
Salt Lake City to Dulles Intl flights
Portland to Dulles Intl flights
Salt Lake City to Reagan-National flights
Jacksonville to Dulles Intl flights
Nashville to Reagan-National flights
Ontario to Dulles Intl flights
Portland to Reagan-National flights

Top 7 airlines flying from Illinois to Washington, D.C.

Discover the top 7 airlines that operate flights from Illinois to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$159FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$121Average$371FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$135Average$174FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$138Average$287FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$158Average$336FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$159Average$370FlexibilityNo cancel feeOn-time69%
DeltaCheapest$175Average$356FlexibilityNo cancel feeOn-timeN/A
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