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District of Columbia

$88+ Cheap flights from Illinois to District of Columbia

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
apr 5 — apr 121
lör 4/5
lör 4/12
1 adult, Economy
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Cheap flight deals from Illinois to District of Columbia

Keep the following information in mind while searching for Illinois to District of Columbia flight deals. Data was last updated mars 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$177
(Booking.com)

One-way from

$88
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$270

Good round-trip deal

$228 or less

Good one-way deal

$114 or less
Provider with most accurate pricing for Chicago (CHI)-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Washington, D.C. (WAS) flights.
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From Illinois to District of Columbia
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One-way flight from Illinois to District of Columbia
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Highest demand for flights based on searches. 4% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Illinois to District of Columbia.
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Price to beat on a one-way flight from Illinois to District of Columbia.
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Find flight deals from Illinois to District of Columbia

Cheapest flights from Illinois to District of Columbia
Explore the most affordable flight options available from Illinois to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mars 31, 2025.

This Booking.com deal was found by Cheapflights users on 3/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tors 5/18:03 pmMDW - DCA
1 stop19h 56mFrontier
mån 5/51:00 pmDCA - MDW
1 stop7h 08mFrontier
Deal found 3/30$177
This Trip.com deal was found by Cheapflights users on 3/31. 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.
fre 5/29:00 amORD - IAD
1 stop24h 54mFrontier
sön 5/47:31 amIAD - ORD
1 stop22h 39mFrontier
Deal found 3/31$177
This Frontier deal was found by Cheapflights users on 3/30. 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.
mån 4/147:05 amMDW - IAD
1 stop6h 33mFrontier
lör 4/1911:11 amIAD - MDW
1 stop11h 50mFrontier
Deal found 3/30$178
This American Airlines deal was found by Cheapflights users on 3/30. 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.
lör 5/241:29 pmORD - DCA
Nonstop2h 00mAmerican Airlines
sön 5/256:59 amDCA - ORD
Nonstop2h 27mAmerican Airlines
Deal found 3/30$179
This JetBlue deal was found by Cheapflights users on 3/31. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tors 5/11:13 pmORD - DCA
1 stop8h 46mJetBlue
ons 5/711:45 amDCA - ORD
1 stop7h 51mJetBlue
Deal found 3/31$183
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lör 5/243:13 pmORD - DCA
Nonstop2h 02mUnited Airlines
sön 5/256:00 amDCA - ORD
1 stop5h 44mUnited Airlines
Deal found 3/30$189
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lör 5/243:43 pmORD - DCA
1 stop5h 18mDelta
sön 5/251:33 pmDCA - ORD
1 stop5h 18mDelta
Deal found 3/30$199
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sön 5/256:00 amMDW - DCA
1 stop5h 43mDelta
ons 5/289:40 amDCA - MDW
1 stop3h 48mDelta
Deal found 3/30$199
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sön 5/256:25 pmMDW - IAD
1 stop3h 29mDelta
ons 5/287:05 amIAD - MDW
1 stop5h 48mDelta
Deal found 3/30$199
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lör 5/245:15 pmORD - IAD
1 stop4h 39mDelta
sön 5/256:00 amIAD - ORD
1 stop4h 18mDelta
Deal found 3/30$199
This CheapOair deal was found by Cheapflights users on 3/30. 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.
fre 5/25:21 pmORD - DCA
1 stop17h 46mFrontier
sön 5/47:00 amDCA - ORD
1 stop17h 41mFrontier
Deal found 3/30$200
This Southwest deal was found by Cheapflights users on 3/30. 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.
lör 5/105:35 pmMDW - DCA
Nonstop1h 55mSouthwest
tors 5/2911:55 amDCA - MDW
Nonstop2h 00mSouthwest
Deal found 3/30$204

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to District of Columbia 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 2,558,603 searches. Data last updated mars 31, 2025.
Use the filters below to find and compare flights from Illinois to District of Columbia that are best for you.

Fly from

Illinois

Fly to

District of Columbia

Route

Depart

Return

Price

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

tors 5/1

8:03 pm-4:59 pm

1 stop19h 56m

Washington, D.C. Reagan-National

mån 5/5

1:00 pm-7:08 pm

1 stop7h 08m

$177

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

fre 5/2

9:00 am-10:54 am

1 stop24h 54m

Washington, D.C. Dulles Intl

sön 5/4

7:31 am-5:10 am

1 stop22h 39m

$177

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

mån 4/14

7:05 am-2:38 pm

1 stop6h 33m

Washington, D.C. Dulles Intl

lör 4/19

12:48 pm-7:47 pm

1 stop7h 59m

$178

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

lör 5/24

1:29 pm-4:29 pm

Nonstop2h 00m

Washington, D.C. Reagan-National

sön 5/25

6:59 am-8:26 am

Nonstop2h 27m

$179

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

tors 5/1

1:13 pm-10:59 pm

1 stop8h 46m

Washington, D.C. Reagan-National

ons 5/7

11:45 am-6:36 pm

1 stop7h 51m

$183

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

lör 5/24

3:13 pm-6:15 pm

Nonstop2h 02m

Washington, D.C. Reagan-National

sön 5/25

6:00 am-10:44 am

1 stop5h 44m

$189

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

lör 5/24

3:43 pm-10:01 pm

1 stop5h 18m

Washington, D.C. Reagan-National

sön 5/25

1:33 pm-5:51 pm

1 stop5h 18m

$199

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

sön 5/25

6:00 am-12:43 pm

1 stop5h 43m

Washington, D.C. Reagan-National

ons 5/28

9:40 am-12:28 pm

1 stop3h 48m

$199

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

sön 5/25

6:25 pm-10:54 pm

1 stop3h 29m

Washington, D.C. Dulles Intl

ons 5/28

7:05 am-11:53 am

1 stop5h 48m

$199

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

lör 5/24

5:15 pm-10:54 pm

1 stop4h 39m

Washington, D.C. Dulles Intl

sön 5/25

6:00 am-9:18 am

1 stop4h 18m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to District of Columbia

What is the cheapest month to book a flight from Illinois to District of Columbia?

Currently, August is the cheapest month in which you can book a flight from Illinois to District of Columbia (average of $241). Flying from Illinois to District of Columbia in March is currently the most expensive (average of $290). 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 DC?

Find hourly flight availability from Illinois to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mars 31, 2025.

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

Weekly flight availability from Illinois to District of Columbia

Explore weekly flight availability from Illinois to District of Columbia. 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 mars 31, 2025.

The most flights from USIL to USDC are scheduled on a Monday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia 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 District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, 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 District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated mars 31, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Illinois to District of Columbia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,811 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,811 reviews
Alaska Airlines
8.0
Very good
9,811 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,275 reviews
Alaska Airlines
8.0
Very good
9,811 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,811 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Qatar Airways
7.4
Good
3,541 reviews
Alaska Airlines
8.0
Very good
9,811 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,811 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Illinois to District of Columbia. 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 District of Columbia one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $88. However, be on the lookout for offers from American Airlines and Southwest, as they are both options that can get you from Illinois to District of Columbia for a low price.

  • Can I find deals for flights from Illinois to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Illinois to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to District of Columbia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to District of Columbia.

  • Can I find deals for business class flights from Illinois to District of Columbia?

    Yes. Cheapflights offers flight deals from Illinois to District of Columbia 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 District of Columbia?

    Currently, August is the cheapest month in which you can book a flight from Illinois to District of Columbia (average of $241). Flying from Illinois to District of Columbia in March is currently the most expensive (average of $290). 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

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Alternative routes for Illinois to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Illinois to District of Columbia

Discover the top 6 airlines that operate flights from Illinois to District of Columbia. 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 2,558,603 searches. Data last updated mars 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$162FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$109Average$370FlexibilityNo cancel feeOn-time71%
DeltaCheapest$124Average$332FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$135Average$174FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$139Average$291FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$173Average$347FlexibilityNo cancel feeOn-time69%
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