HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
District of Columbia

$70+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IAD
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to District of Columbia 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.

Cheap flight deals from Illinois to District of Columbia

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to District of Columbia (USDC). 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 21, 2024.

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 November 21, 2024.

This Travelocity deal was found by Cheapflights users on 11/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/172:20 pmMDW - IAD
1 stop6h 00mFrontier
Wed 12/183:25 pmIAD - MDW
1 stop6h 52mFrontier
Deal found 11/21$138
This Frontier 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 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 11/20$138
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1810:27 pmMDW - DCA
1 stop12h 41mFrontier
Thu 1/91:01 pmDCA - MDW
1 stop12h 12mFrontier
Deal found 11/19$154
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:25 amORD - DCA
1 stop13h 31mFrontier
Fri 12/66:00 pmDCA - ORD
1 stop7h 35mFrontier
Deal found 11/20$158
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/188:51 amORD - DCA
1 stop9h 07mJetBlue
Wed 1/81:00 pmDCA - ORD
1 stop5h 59mJetBlue
Deal found 11/19$182
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/139:05 pmORD - DCA
Nonstop1h 48mUnited Airlines
Sun 12/157:52 amDCA - ORD
Nonstop2h 13mUnited Airlines
Deal found 11/20$197
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/188:48 amORD - IAD
Nonstop1h 56mUnited Airlines
Tue 1/710:09 pmIAD - ORD
Nonstop2h 06mUnited Airlines
Deal found 11/19$197
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 12/188:10 pmMDW - DCA
Nonstop1h 45mSouthwest
Tue 1/710:00 amDCA - MDW
Nonstop2h 05mSouthwest
Deal found 11/19$198
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/108:05 amORD - DCA
Nonstop1h 50mAmerican Airlines
Wed 12/112:44 pmDCA - ORD
Nonstop2h 25mAmerican Airlines
Deal found 11/20$208
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:10 pmMLI - DCA
1 stop4h 49mAmerican Airlines
Sat 12/145:30 pmDCA - MLI
1 stop7h 25mAmerican Airlines
Deal found 11/20$208
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/174:25 pmPIA - DCA
1 stop4h 55mAmerican Airlines
Wed 1/1511:59 amDCA - PIA
1 stop5h 02mAmerican Airlines
Deal found 11/20$208
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/182:50 pmORD - DCA
1 stop7h 01mDelta
Wed 12/2512:31 pmDCA - ORD
1 stop5h 09mDelta
Deal found 11/20$216

Find flights from Illinois to District of Columbia within your budget

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 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Sun 1/5

5:52 pm-2:34 pm

1 stop19h 42m

Washington, D.C. Dulles Intl

Sun 1/12

5:57 pm-10:21 am

1 stop17h 24m

$136

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Sun 1/5

7:29 pm-7:11 am

1 stop10h 42m

Washington, D.C. Dulles Intl

Sun 1/12

5:57 pm-4:38 pm

1 stop23h 41m

$136

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Fri 1/24

7:25 am-9:59 pm

1 stop13h 34m

Washington, D.C. Reagan-National

Mon 1/27

7:00 am-2:11 pm

1 stop8h 11m

$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

1:01 pm-12:17 am

1 stop12h 16m

$138

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Fri 1/10

7:00 am-5:00 pm

1 stop9h 00m

Washington, D.C. Reagan-National

Mon 1/13

1:00 pm-5:59 pm

1 stop5h 59m

$182

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Fri 1/3

9:20 am-12:10 pm

Nonstop1h 50m

Washington, D.C. Reagan-National

Fri 1/3

3:50 pm-4:55 pm

Nonstop2h 05m

$193

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Fri 12/13

9:05 pm-11:53 pm

Nonstop1h 48m

Washington, D.C. Reagan-National

Sun 12/15

7:52 am-9:05 am

Nonstop2h 13m

$197

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Wed 12/18

8:48 am-11:44 am

Nonstop1h 56m

Washington, D.C. Dulles Intl

Tue 1/7

10:09 pm-11:15 pm

Nonstop2h 06m

$197

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Mon 1/6

6:00 am-8:55 am

Nonstop1h 55m

Washington, D.C. Reagan-National

Wed 1/8

9:29 am-10:47 am

Nonstop2h 18m

$198

PeoriaWashington, D.C.

PIA - IAD

PIAIAD

Greater Peoria

Sat 2/8

3:33 pm-10:41 pm

1 stop6h 08m

Washington, D.C. Dulles Intl

Wed 2/12

9:11 am-3:50 pm

1 stop7h 39m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 60 results
1
2
3
...
6

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.

Travel insights for flights from Illinois to District of Columbia

Get recent, data-driven insights about flights from Illinois to District of Columbia including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Illinois to District of Columbia (average of $300). Flying from Illinois to District of Columbia 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 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 November 21, 2024.

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.

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 November 21, 2024.
See what other customers who have flown with Porter Airlines, Frontier and United Airlines 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.
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Reviews

1 / 10

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

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Reviews

1 / 10

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

Delta
8.0
Very good
8,759 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Reviews

1 / 10

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

Porter Airlines
7.8
Good
286 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

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
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

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 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 $70. However, be on the lookout for offers from JetBlue and United Airlines, 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, September is the cheapest month in which you can book a flight from Illinois to District of Columbia (average of $300). Flying from Illinois to District of Columbia 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Fort Lauderdale flights
LaGuardia to Miami flights
Newark to Fort Lauderdale flights
Dallas/Fort Worth to LaGuardia flights
John F Kennedy Intl to Miami flights
Newark to Miami flights
John F Kennedy Intl to Orlando flights
Los Angeles to John F Kennedy Intl flights
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
Los Angeles to Newark flights
Dallas/Fort Worth to John F Kennedy Intl flights
Newark to Orlando flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to Fort Lauderdale flights
Dallas/Fort Worth to Newark flights
LaGuardia to Orlando flights
San Francisco to John F Kennedy Intl flights
Miami to LaGuardia flights
Miami to John F Kennedy Intl flights
Fort Lauderdale to LaGuardia flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Atlanta flights
Fort Lauderdale to Newark flights
Atlanta to John F Kennedy Intl flights
Los Angeles to Dallas/Fort Worth flights
John F Kennedy Intl to San Francisco flights
Los Angeles to Honolulu flights
Dallas/Fort Worth to Orlando flights
Seattle to Los Angeles flights
O'Hare Intl to Orlando flights
Dallas/Fort Worth to Las Vegas flights
Boston to Orlando flights
Dallas/Fort Worth to Los Angeles flights
Miami to Newark flights
O'Hare Intl to Miami flights
Los Angeles to LaGuardia flights
Fort Lauderdale to John F Kennedy Intl flights
John F Kennedy Intl to West Palm Beach flights
O'Hare Intl to Dallas/Fort Worth flights
Orlando to John F Kennedy Intl flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Los Angeles flights
O'Hare Intl to Fort Lauderdale flights
San Francisco to Newark flights
LaGuardia to Los Angeles flights
LaGuardia to Atlanta flights
Baltimore to Fort Lauderdale flights

Top 7 airlines flying from Illinois to District of Columbia

Discover the top 7 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 2,629,791 searches. Data last updated November 21, 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
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines