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District of Columbia

$55+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IAD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$150
(Priceline)

One-way from

$55
(Priceline)

Popular in

January

Cheapest in

August

Average price

$257

Good round-trip deal

$263 or less

Good one-way deal

$158 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. 5% potential increase in price ($11 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 October 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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:14 amMDW - IAD
1 stop9h 23mFrontier
Tue 12/305:37 pmIAD - MDW
1 stop5h 35mFrontier
Deal found 10/28$146
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:12 amMDW - IAD
1 stop11h 04mFrontier
Tue 12/235:37 pmIAD - MDW
1 stop5h 35mFrontier
Deal found 10/28$147
This CheapOair deal was found by Cheapflights users on 10/28. 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.
Sat 11/157:15 amORD - DCA
1 stop8h 44mFrontier
Mon 11/172:00 pmDCA - ORD
1 stop11h 15mFrontier
Deal found 10/28$150
This CheapOair deal was found by Cheapflights users on 10/28. 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 11/1012:30 pmMDW - DCA
1 stop8h 29mFrontier
Wed 11/128:15 amDCA - MDW
1 stop28h 15mFrontier
Deal found 10/28$150
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:56 pmMDW - IAD
1 stop5h 24mFrontier
Sat 11/158:36 pmIAD - MDW
1 stop13h 36mFrontier
Deal found 10/30$150
This CheapOair deal was found by Cheapflights users on 10/30. 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.
Tue 11/1112:37 pmORD - IAD
1 stop6h 43mFrontier
Thu 11/136:00 amIAD - ORD
1 stop5h 41mFrontier
Deal found 10/30$150
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:00 amORD - IAD
1 stop16h 55mFrontier
Thu 11/276:41 pmIAD - ORD
1 stop6h 27mFrontier
Deal found 10/28$151
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:05 pmORD - DCA
1 stop17h 57mFrontier
Thu 11/136:00 pmDCA - ORD
1 stop7h 15mFrontier
Deal found 10/30$152
This Booking.com deal was found by Cheapflights users on 10/29. 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.
Mon 12/812:18 pmMDW - DCA
1 stop8h 41mFrontier
Thu 12/116:00 pmDCA - MDW
1 stop18h 08mFrontier
Deal found 10/29$152
This JetBlue deal was found by Cheapflights users on 10/28. 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.
Thu 11/136:45 amORD - DCA
1 stop6h 51mJetBlue
Sat 11/154:55 pmDCA - ORD
1 stop4h 57mJetBlue
Deal found 10/28$153
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:37 pmORD - IAD
1 stop6h 43mFrontier
Mon 12/85:45 amIAD - ORD
1 stop17h 39mFrontier
Deal found 10/28$153
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:05 amMDW - IAD
1 stop10h 41mFrontier
Thu 12/47:18 pmIAD - MDW
1 stop27h 54mFrontier
Deal found 10/30$154

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 October 30, 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.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sat 11/15

6:45 am-2:35 pm

1 stop6h 50m

Washington, D.C. Reagan-National

Tue 11/18

4:55 pm-8:52 pm

1 stop4h 57m

$153

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Thu 11/6

1:37 pm-12:11 am

1 stop9h 34m

Washington, D.C. Dulles Intl

Mon 11/10

5:44 pm-10:11 pm

1 stop5h 27m

$176

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Fri 11/14

6:45 am-2:36 pm

1 stop6h 51m

Washington, D.C. Reagan-National

Wed 11/19

4:55 pm-9:52 pm

1 stop5h 57m

$180

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Fri 11/14

6:45 am-2:36 pm

1 stop6h 51m

Washington, D.C. Reagan-National

Sat 11/15

4:55 pm-8:52 pm

1 stop4h 57m

$180

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Wed 1/7

2:05 pm-10:47 pm

1 stop7h 42m

Washington, D.C. Reagan-National

Sun 1/11

11:55 am-5:44 pm

1 stop6h 49m

$188

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 11/6

7:45 am-2:36 pm

1 stop5h 51m

Washington, D.C. Reagan-National

Wed 11/12

4:55 pm-8:52 pm

1 stop4h 57m

$190

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 11/13

6:45 am-2:36 pm

1 stop6h 51m

Washington, D.C. Reagan-National

Thu 11/20

5:43 pm-10:21 pm

1 stop5h 38m

$195

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Fri 11/14

6:45 am-2:36 pm

1 stop6h 51m

Washington, D.C. Reagan-National

Thu 11/20

5:43 pm-10:21 pm

1 stop5h 38m

$222

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Thu 11/6

6:25 am-4:34 pm

1 stop9h 09m

Washington, D.C. Dulles Intl

Fri 11/7

5:34 pm-10:08 pm

1 stop5h 34m

$236

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 12/11

6:00 pm-8:55 pm

Nonstop1h 55m

Washington, D.C. Reagan-National

Mon 12/15

6:30 am-7:45 am

Nonstop2h 15m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

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, February is the cheapest month in which you can book a flight from Illinois to District of Columbia (average of $57). Flying from Illinois to District of Columbia in April is currently the most expensive (average of $169). 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 October 30, 2025.

One of the essential ways to save on airfare from Illinois to District of Columbia is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 25% on airfare.

What is the cheapest day to fly from Illinois to District of Columbia?

Use this chart to determine the cheapest time to fly round-trip from Illinois to District of Columbia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to District of Columbia flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 30, 2025.
Read through reviews of airlines operating flights from Illinois to District of Columbia, such as Southwest, United Airlines, and American Airlines. 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.
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,998 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,116 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,122 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Illinois to District of Columbia?

    Departing from Illinois to District of Columbia will take you 1h 50m. Airlines will cover a distance of 599 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $79. However, be on the lookout for offers from JetBlue 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, February is the cheapest month in which you can book a flight from Illinois to District of Columbia (average of $57). Flying from Illinois to District of Columbia in April is currently the most expensive (average of $169). 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

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$147FlexibilityNo cancel feeOn-time65%
FrontierCheapest$63Average$192FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$143Average$285FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$143Average$340FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$147Average$402FlexibilityNo cancel feeOn-time71%
DeltaCheapest$166Average$317FlexibilityNo cancel feeOn-timeN/A

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