Illinois

$78+ Cheap flights from District of Columbia to Illinois

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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ORD
Dec 25 — Jan 11
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Cheap flight deals from District of Columbia to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from District of Columbia (USDC) to Illinois (USIL). 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 December 20, 2024.

Round-trip from

$164
(Mytrip)

One-way from

$78
(Trip.com)
From District of Columbia to Illinois
One-way flight from District of Columbia to Illinois

Find flight deals from District of Columbia to Illinois

Cheapest flights from District of Columbia to Illinois
Explore the most affordable flight options available from District of Columbia to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 20, 2024.

This Frontier deal was found by Cheapflights users on 12/19. 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.
Tue 12/3111:34 amIAD - MDW
1 stop11h 59mFrontier
Fri 1/38:25 amMDW - IAD
1 stop11h 40mFrontier
Deal found 12/19$208
This American Airlines deal was found by Cheapflights users on 12/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/258:22 amDCA - ORD
1 stop4h 03mAmerican Airlines
Tue 12/313:47 pmORD - DCA
1 stop3h 54mAmerican Airlines
Deal found 12/19$278
This Delta deal was found by Cheapflights users on 12/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:00 amIAD - MDW
1 stop3h 50mDelta
Tue 12/315:51 pmMDW - IAD
1 stop4h 11mDelta
Deal found 12/19$278
This Southwest deal was found by Cheapflights users on 12/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:35 pmDCA - MDW
Nonstop2h 05mSouthwest
Sun 1/56:40 amMDW - DCA
Nonstop1h 50mSouthwest
Deal found 12/18$315
This Gotogate deal was found by Cheapflights users on 12/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:00 pmDCA - STL
1 stop15h 13mFrontier
Thu 1/210:09 pmSTL - DCA
1 stop12h 59mFrontier
Deal found 12/19$318
This Frontier deal was found by Cheapflights users on 12/19. 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.
Wed 12/251:01 pmDCA - MDW
1 stop9h 31mFrontier
Wed 1/88:15 amMDW - DCA
1 stop7h 47mFrontier
Deal found 12/19$318
This Delta deal was found by Cheapflights users on 12/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:41 pmIAD - MLI
1 stop4h 50mDelta
Wed 1/85:05 pmMLI - IAD
1 stop6h 17mDelta
Deal found 12/18$323
This United Airlines deal was found by Cheapflights users on 12/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:00 pmDCA - ORD
Nonstop2h 25mUnited Airlines
Tue 12/319:05 pmORD - DCA
Nonstop1h 54mUnited Airlines
Deal found 12/18$329
This Delta deal was found by Cheapflights users on 12/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/313:00 pmDCA - ORD
1 stop8h 52mDelta
Fri 1/35:40 amORD - DCA
1 stop7h 41mDelta
Deal found 12/18$333
This Delta deal was found by Cheapflights users on 12/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3111:37 amDCA - MDW
1 stop6h 34mDelta
Fri 1/36:25 pmMDW - DCA
1 stop3h 32mDelta
Deal found 12/18$333
This American Airlines deal was found by Cheapflights users on 12/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/295:30 pmDCA - PIA
1 stop6h 12mAmerican Airlines
Fri 1/32:41 pmPIA - DCA
1 stop6h 49mAmerican Airlines
Deal found 12/19$354
This American Airlines deal was found by Cheapflights users on 12/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/295:29 pmIAD - PIA
1 stop6h 13mAmerican Airlines
Fri 1/36:03 pmPIA - IAD
1 stop5h 03mAmerican Airlines
Deal found 12/19$359

Find flights from District of Columbia to Illinois within your budget

Customize your flight search to find flights from District of Columbia to Illinois 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 December 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Mon 1/6

1:01 pm-11:46 pm

1 stop11h 45m

Chicago O'Hare Intl

Fri 1/10

7:25 am-9:56 pm

1 stop13h 31m

$158

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Mon 2/24

6:03 pm-10:38 pm

1 stop29h 35m

Chicago O'Hare Intl

Wed 2/26

8:33 am-2:39 pm

1 stop5h 06m

$164

Washington, D.C.Chicago

DCA - MDW

DCAMDW

Washington, D.C. Reagan-National

Wed 1/8

1:01 pm-12:13 am

1 stop12h 12m

Chicago Midway

Fri 1/10

7:15 am-5:02 pm

1 stop8h 47m

$168

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Fri 1/24

1:00 pm-5:59 pm

1 stop5h 59m

Chicago O'Hare Intl

Mon 1/27

9:05 am-4:00 pm

1 stop5h 55m

$181

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Thu 1/9

6:00 am-7:24 am

Nonstop2h 24m

Chicago O'Hare Intl

Thu 1/23

7:17 pm-10:15 pm

Nonstop1h 58m

$190

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Fri 1/10

8:10 pm-9:38 pm

Nonstop2h 28m

Chicago O'Hare Intl

Sun 1/12

9:05 pm-11:59 pm

Nonstop1h 54m

$191

Washington, D.C.Chicago

DCA - MDW

DCAMDW

Washington, D.C. Reagan-National

Fri 1/24

6:55 am-8:10 am

Nonstop2h 15m

Chicago Midway

Mon 1/27

6:35 am-9:25 am

Nonstop1h 50m

$192

Washington, D.C.Chicago

IAD - MDW

IADMDW

Washington, D.C. Dulles Intl

Tue 12/31

11:34 am-10:33 pm

1 stop11h 59m

Chicago Midway

Fri 1/3

8:25 am-9:05 pm

1 stop11h 40m

$208

Washington, D.C.Chicago

IAD - MDW

IADMDW

Washington, D.C. Dulles Intl

Thu 1/9

6:00 am-8:54 am

1 stop3h 54m

Chicago Midway

Thu 1/23

6:00 am-11:57 am

1 stop4h 57m

$210

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Thu 1/9

10:09 pm-11:15 pm

Nonstop2h 06m

Chicago O'Hare Intl

Thu 1/23

6:08 pm-9:01 pm

Nonstop1h 53m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

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

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

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

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

Currently, August is the cheapest month in which you can book a flight from District of Columbia to Illinois (average of $245). Flying from District of Columbia to Illinois in March is currently the most expensive (average of $317). 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 DC to IL?

Find hourly flight availability from District of Columbia to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 20, 2024.

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

Weekly flight availability from District of Columbia to Illinois

Explore weekly flight availability from District of Columbia to Illinois. 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 December 20, 2024.

The most flights from USDC to USIL are scheduled on a Friday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated December 20, 2024.
See what other customers who have flown with Frontier, United Airlines and Southwest from District of Columbia to Illinois have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
4,821 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.1
Very good
4,821 reviews
8.1
Very good
4,821 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
9,547 reviews
8.1
Very good
4,821 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
8,601 reviews
8.1
Very good
4,821 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
3,268 reviews
8.1
Very good
4,821 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
9,041 reviews
8.1
Very good
4,821 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

    $78 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on JetBlue and United Airlines, with prices starting from $91 and $96, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from District of Columbia to Illinois (average of $245). Flying from District of Columbia to Illinois in March is currently the most expensive (average of $317). 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

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Alternative routes for District of Columbia to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from District of Columbia to Illinois

Discover the top 6 airlines that operate flights from District of Columbia to Illinois. 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 December 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$176FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$101Average$193FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$124Average$418FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$152Average$393FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$157Average$299FlexibilityNo cancel feeOn-time63%
DeltaCheapest$175Average$328FlexibilityNo cancel feeOn-timeN/A
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