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$68+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ORD
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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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 November 20, 2024.

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 November 20, 2024.

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.
Fri 12/67:00 amDCA - ORD
1 stop18h 35mFrontier
Sun 12/87:25 amORD - DCA
1 stop27h 36mFrontier
Deal found 11/19$144
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/155:57 pmIAD - ORD
1 stop16h 57mFrontier
Wed 12/186:55 amORD - IAD
1 stop8h 33mFrontier
Deal found 11/20$148
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.
Wed 12/183:25 pmIAD - MDW
1 stop6h 52mFrontier
Wed 12/258:25 amMDW - IAD
1 stop5h 00mFrontier
Deal found 11/19$148
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.
Wed 12/47:00 amDCA - MDW
1 stop18h 13mFrontier
Sun 12/87:15 amMDW - DCA
1 stop27h 46mFrontier
Deal found 11/19$155
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 12/1111:00 amDCA - ORD
1 stop5h 53mJetBlue
Tue 12/178:51 amORD - DCA
1 stop9h 07mJetBlue
Deal found 11/19$182
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/118:30 amDCA - ORD
Nonstop2h 13mUnited Airlines
Wed 12/113:00 pmORD - DCA
Nonstop1h 55mUnited Airlines
Deal found 11/18$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.
Tue 12/1710:16 pmIAD - ORD
Nonstop2h 04mUnited Airlines
Wed 12/183:56 pmORD - IAD
Nonstop1h 54mUnited Airlines
Deal found 11/19$197
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/119:43 amDCA - ORD
Nonstop2h 20mAmerican Airlines
Sun 12/156:07 amORD - DCA
Nonstop1h 53mAmerican Airlines
Deal found 11/19$198
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 12/246:35 pmDCA - MDW
Nonstop2h 05mSouthwest
Tue 12/318:10 pmMDW - DCA
Nonstop1h 45mSouthwest
Deal found 11/20$198
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/109:49 amDCA - ORD
1 stop4h 11mDelta
Tue 12/171:59 pmORD - DCA
1 stop4h 29mDelta
Deal found 11/19$216
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 12/111:35 pmIAD - ORD
1 stop3h 55mDelta
Wed 12/185:40 amORD - IAD
1 stop5h 10mDelta
Deal found 11/20$216
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/106:00 amIAD - MDW
1 stop3h 58mDelta
Wed 12/115:50 pmMDW - IAD
1 stop4h 35mDelta
Deal found 11/19$216

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 2,629,791 searches. Data last updated November 20, 2024.

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Route

Depart

Return

Price

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Fri 1/10

11:32 am-7:17 pm

1 stop8h 45m

Chicago O'Hare Intl

Sun 1/12

4:11 pm-5:01 pm

1 stop23h 50m

$141

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Fri 12/6

7:00 am-12:35 am

1 stop18h 35m

Chicago O'Hare Intl

Sun 12/8

7:25 am-12:01 pm

1 stop27h 36m

$144

Washington, D.C.Chicago

IAD - MDW

IADMDW

Washington, D.C. Dulles Intl

Wed 12/18

3:25 pm-9:17 pm

1 stop6h 52m

Chicago Midway

Wed 12/25

8:25 am-2:25 pm

1 stop5h 00m

$148

Washington, D.C.Chicago

DCA - MDW

DCAMDW

Washington, D.C. Reagan-National

Wed 12/4

7:00 am-12:13 am

1 stop18h 13m

Chicago Midway

Sun 12/8

7:15 am-12:01 pm

1 stop27h 46m

$155

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Wed 1/22

10:45 am-5:59 pm

1 stop8h 14m

Chicago O'Hare Intl

Sat 1/25

7:00 am-5:00 pm

1 stop9h 00m

$182

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Wed 12/11

8:30 am-9:43 am

Nonstop2h 13m

Chicago O'Hare Intl

Wed 12/11

3:00 pm-5:55 pm

Nonstop1h 55m

$197

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Tue 12/17

8:20 am-9:34 am

Nonstop2h 14m

Chicago O'Hare Intl

Tue 12/24

9:05 pm-11:59 pm

Nonstop1h 54m

$197

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Wed 12/11

9:43 am-11:03 am

Nonstop2h 20m

Chicago O'Hare Intl

Sun 12/15

6:07 am-9:00 am

Nonstop1h 53m

$198

Washington, D.C.Chicago

DCA - MDW

DCAMDW

Washington, D.C. Reagan-National

Tue 12/24

6:35 pm-7:40 pm

Nonstop2h 05m

Chicago Midway

Tue 12/31

8:10 pm-10:55 pm

Nonstop1h 45m

$198

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Tue 12/10

9:49 am-1:00 pm

1 stop4h 11m

Chicago O'Hare Intl

Tue 12/17

1:59 pm-7:28 pm

1 stop4h 29m

$216

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

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, September is the cheapest month in which you can book a flight from District of Columbia to Illinois (average of $232). Flying from District of Columbia to Illinois in June is currently the most expensive (average of $308). 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 November 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 November 20, 2024.

The most flights from USDC to USIL are scheduled on a Tuesday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 November 20, 2024.
See what other customers who have flown with Frontier, United Airlines and Delta 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.
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

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

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

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

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

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

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

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

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

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

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

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 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?

    $68 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 American Airlines, with prices starting from $91 and $99, 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, September is the cheapest month in which you can book a flight from District of Columbia to Illinois (average of $232). Flying from District of Columbia to Illinois in June is currently the most expensive (average of $308). 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 District of Columbia to Illinois

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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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$175FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$101Average$193FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$124Average$406FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$153Average$391FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$157Average$280FlexibilityNo cancel feeOn-time63%
DeltaCheapest$175Average$329FlexibilityNo cancel feeOn-timeN/A
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