What is the cheapest airline that flies from Washington, D.C. to Illinois?

Frontier, United Airlines, and American Airlines are the most popular carriers operating from Washington, D.C. to Illinois

What airlines fly to Illinois?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many flights depart from Washington, D.C. to Illinois on average per day?

78 flights are operational daily from Washington, D.C. to Illinois as of November 2026. The most popular departure time for this route is 8:00AM, with 50% of flights per day taking off at noon.

How long is the flight from Washington, D.C. to Illinois?

The flight from Washington, D.C. to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Washington, D.C. (a popular airport in Washington, D.C.) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 2h 03m on average. If you fly from Baltimore (another popular airport in Washington, D.C.) to Chicago O'Hare Intl Airport, then the average flight time is 2h 10m.

How many flights depart from Washington, D.C. to Illinois on average per week?

As of November 2026, 550 flights take off from Washington, D.C. and land in Illinois each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.

When did momondo last update prices for flights from Washington, D.C. to Illinois?

Prices for flights from Washington, D.C. to Illinois were last updated today.

How many operators does momondo search for flights from Washington, D.C. to Illinois?

The number of operators available for flights from Washington, D.C. to Illinois is 4 as of November 2026.

How old do you have to be to fly from Washington, D.C. to Illinois?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$116 Cheap Flights from Washington, D.C. to Illinois in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:56 pm - 7:47 amIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

10h 51m1 stop Dallas/Fort Worth

7:49 am - 3:03 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

6h 14m1 stop Atlanta Hartsfield-Jackson

$220Frontier

Sat, Nov 21 - Tue, Nov 24

8:33 pm - 2:30 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

18h 57m2 stops Orlando Atlanta Hartsfield-Jackson

10:29 pm - 2:49 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

15h 20m1 stop Atlanta Hartsfield-Jackson

$220Frontier

Fri, Dec 4 - Mon, Dec 7

7:50 am - 9:19 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 29mnonstop

9:57 am - 12:59 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 02mnonstop

$247American Airlines

Wed, Dec 23 - Wed, Dec 30

8:39 am - 10:08 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 29mnonstop

7:30 pm - 10:32 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 02mnonstop

$247American Airlines

Tue, Dec 22 - Tue, Dec 29

6:00 pm - 12:54 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

7h 54m1 stop Denver Intl

11:49 am - 4:55 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

28h 06m2 stops Minneapolis St Paul Denver Intl

$256Multiple Airlines

Sat, Dec 5 - Sun, Dec 13

6:00 pm - 10:46 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

17h 46m2 stops Denver Intl Minneapolis St Paul

7:25 am - 4:55 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

8h 30m1 stop Denver Intl

$259Multiple Airlines

Thu, Dec 10 - Tue, Dec 15

8:15 am - 9:37 amIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

2h 22mnonstop

9:35 pm - 12:24 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

1h 49mnonstop

$277United Airlines

Sat, Dec 5 - Mon, Dec 7

8:15 am - 9:37 amIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

2h 22mnonstop

9:35 pm - 12:24 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

1h 49mnonstop

$277United Airlines

Fri, Dec 11 - Mon, Dec 14

6:10 am - 7:15 amDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 05mnonstop

5:35 am - 8:25 amMDW Chicago Midway-DCA Washington, D.C. Reagan-National

1h 50mnonstop

$277Southwest

Fri, Dec 25 - Wed, Dec 30

2:35 pm - 3:40 pmDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 05mnonstop

12:05 pm - 2:55 pmMDW Chicago Midway-DCA Washington, D.C. Reagan-National

1h 50mnonstop

$277Southwest

Sat, Dec 5 - Mon, Dec 7

Cheap last minute flights

Enter your travel dates to find the best prices.

6:07 pm - 3:37 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

22h 30m1 stop Fort Lauderdale

4:00 pm - 9:46 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

28h 46m1 stop Fort Lauderdale

$229Frontier

Fri, Nov 6 - Mon, Nov 30

11:16 am - 5:07 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

6h 51m1 stop Orlando

7:55 am - 8:11 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

11h 16m1 stop Fort Lauderdale

$233Frontier

Tue, Nov 10 - Thu, Nov 12

6:36 pm - 5:07 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

23h 31m2 stops Blountville Tri Cities TN/VA Orlando

7:55 am - 8:11 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

11h 16m1 stop Fort Lauderdale

$282Multiple Airlines

Mon, Nov 9 - Fri, Nov 13

6:36 pm - 5:07 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

23h 31m2 stops Blountville Tri Cities TN/VA Orlando

7:55 am - 8:11 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

11h 16m1 stop Fort Lauderdale

$282Multiple Airlines

Mon, Nov 9 - Sat, Nov 14

1:17 pm - 5:52 pmIAD Washington, D.C. Dulles Intl-MLI Moline Quad-City

5h 35m1 stop Chicago O'Hare Intl

5:00 am - 11:52 amMLI Moline Quad-City-IAD Washington, D.C. Dulles Intl

5h 52m1 stop Chicago O'Hare Intl

$377United Airlines

Sat, Nov 7 - Tue, Nov 10

11:48 am - 3:35 pmIAD Washington, D.C. Dulles Intl-MLI Moline Quad-City

4h 47m1 stop Charlotte Douglas

11:20 am - 6:47 pmMLI Moline Quad-City-IAD Washington, D.C. Dulles Intl

6h 27m2 stops Chicago O'Hare Intl Charlotte Douglas

$382American Airlines

Sat, Nov 7 - Tue, Nov 10

7:58 pm - 11:59 pmDCA Washington, D.C. Reagan-National-BMI Bloomington-Normal

5h 01m1 stop Chicago O'Hare Intl

2:33 pm - 8:59 pmBMI Bloomington-Normal-DCA Washington, D.C. Reagan-National

5h 26m1 stop Chicago O'Hare Intl

$384American Airlines

Wed, Nov 11 - Tue, Nov 24

5:10 pm - 9:22 pmDCA Washington, D.C. Reagan-National-MLI Moline Quad-City

5h 12m1 stop Chicago O'Hare Intl

8:13 am - 2:12 pmMLI Moline Quad-City-DCA Washington, D.C. Reagan-National

4h 59m1 stop Chicago O'Hare Intl

$409United Airlines

Sat, Nov 7 - Mon, Nov 9

6:50 pm - 8:00 pmDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 10mnonstop

8:15 am - 12:30 pmMDW Chicago Midway-DCA Washington, D.C. Reagan-National

3h 15m1 stop Columbus

$480Southwest

Tue, Nov 10 - Mon, Nov 30

6:10 am - 7:15 amDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 05mnonstop

8:15 am - 12:30 pmMDW Chicago Midway-DCA Washington, D.C. Reagan-National

3h 15m1 stop Columbus

$480Southwest

Thu, Nov 5 - Mon, Nov 30

Cheap direct flights

Enter your travel dates to find the best prices.

7:50 am - 9:19 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 29mnonstop

9:57 am - 12:59 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 02mnonstop

$247American Airlines

Wed, Dec 23 - Wed, Dec 30

8:39 am - 10:08 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 29mnonstop

7:30 pm - 10:32 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 02mnonstop

$247American Airlines

Tue, Dec 22 - Tue, Dec 29

8:59 pm - 10:33 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 34mnonstop

7:30 pm - 10:32 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 02mnonstop

$248American Airlines

Wed, Dec 23 - Mon, Dec 28

3:03 pm - 4:28 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 25mnonstop

7:30 pm - 10:32 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 02mnonstop

$249American Airlines

Thu, Dec 24 - Thu, Dec 31

1:00 pm - 2:30 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 30mnonstop

7:45 pm - 10:45 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 00mnonstop

$277United Airlines

Fri, Dec 25 - Wed, Dec 30

1:01 pm - 2:23 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 22mnonstop

10:00 am - 1:05 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 05mnonstop

$277United Airlines

Thu, Jan 7 - Mon, Jan 11

6:10 am - 7:15 amDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 05mnonstop

5:35 am - 8:25 amMDW Chicago Midway-DCA Washington, D.C. Reagan-National

1h 50mnonstop

$277Southwest

Fri, Dec 25 - Wed, Dec 30

2:35 pm - 3:40 pmDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 05mnonstop

12:05 pm - 2:55 pmMDW Chicago Midway-DCA Washington, D.C. Reagan-National

1h 50mnonstop

$277Southwest

Sat, Dec 5 - Mon, Dec 7

8:15 am - 9:37 amIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

2h 22mnonstop

9:35 pm - 12:24 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

1h 49mnonstop

$277United Airlines

Sat, Dec 5 - Mon, Dec 7

2:40 pm - 3:45 pmDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 05mnonstop

5:35 am - 8:25 amMDW Chicago Midway-DCA Washington, D.C. Reagan-National

1h 50mnonstop

$277Southwest

Mon, Nov 23 - Wed, Nov 25

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Frontier flights from Washington, D.C. to Illinois

Our best Frontier deals on Washington, D.C. to Illinois flight tickets

Frontier

Nov 21

IAD9:56 pmWashington, D.C. Dulles Intl

10h 51m

1 stop

ORD7:47 amChicago O'Hare Intl

Nov 24

ORD7:49 amChicago O'Hare Intl

6h 14m

1 stop

IAD3:03 pmWashington, D.C. Dulles Intl

$220

Frontier

Nov 13

IAD6:07 pmWashington, D.C. Dulles Intl

22h 30m

1 stop

ORD3:37 pmChicago O'Hare Intl

Nov 16

ORD7:55 amChicago O'Hare Intl

11h 16m

1 stop

IAD8:11 pmWashington, D.C. Dulles Intl

$223

Frontier

Dec 9

IAD10:35 pmWashington, D.C. Dulles Intl

16h 25m

2 stops

ORD2:00 pmChicago O'Hare Intl

Dec 12

ORD10:00 amChicago O'Hare Intl

9h 10m

1 stop

IAD8:10 pmWashington, D.C. Dulles Intl

$224

United Airlines flights from Washington, D.C. to Illinois

Our best United Airlines deals on Washington, D.C. to Illinois flight tickets

United Airlines

Dec 3

DCA7:42 amWashington, D.C. Reagan-National

2h 18m

ORD9:00 amChicago O'Hare Intl

Dec 7

ORD5:00 pmChicago O'Hare Intl

2h 11m

DCA8:11 pmWashington, D.C. Reagan-National

$277

United Airlines

Dec 4

DCA7:05 pmWashington, D.C. Reagan-National

4h 24m

1 stop

PIA10:29 pmGreater Peoria

Dec 6

PIA6:30 amGreater Peoria

4h 35m

1 stop

DCA12:05 pmWashington, D.C. Reagan-National

$339

United Airlines

Nov 18

DCA6:25 amWashington, D.C. Reagan-National

4h 43m

1 stop

PIA10:08 amGreater Peoria

Nov 22

PIA2:35 pmGreater Peoria

5h 36m

1 stop

DCA9:11 pmWashington, D.C. Reagan-National

$369

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Chicago

IAD Washington, D.C. Dulles Intl - ORD Chicago O'Hare Intl

IADORD

Washington, D.C. Dulles Intl

Sat 11/21

9:56 pm-7:47 am

1 stop10h 51m

Chicago O'Hare Intl

Tue 11/24

7:49 am-3:03 pm

1 stop6h 14m

$220

Washington, D.C.Chicago

IAD Washington, D.C. Dulles Intl - ORD Chicago O'Hare Intl

IADORD

Washington, D.C. Dulles Intl

Fri 12/4

8:33 pm-2:30 pm

2 stops18h 57m

Chicago O'Hare Intl

Mon 12/7

10:29 pm-2:49 pm

1 stop15h 20m

$220

Washington, D.C.Chicago

DCA Washington, D.C. Reagan-National - ORD Chicago O'Hare Intl

DCAORD

Washington, D.C. Reagan-National

Wed 12/23

7:50 am-9:19 am

Nonstop2h 29m

Chicago O'Hare Intl

Wed 12/30

9:57 am-12:59 pm

Nonstop2h 02m

$247

Washington, D.C.Chicago

DCA Washington, D.C. Reagan-National - ORD Chicago O'Hare Intl

DCAORD

Washington, D.C. Reagan-National

Tue 12/22

8:39 am-10:08 am

Nonstop2h 29m

Chicago O'Hare Intl

Tue 12/29

7:30 pm-10:32 pm

Nonstop2h 02m

$247

Washington, D.C.Chicago

DCA Washington, D.C. Reagan-National - ORD Chicago O'Hare Intl

DCAORD

Washington, D.C. Reagan-National

Sat 12/5

6:00 pm-12:54 am

1 stop7h 54m

Chicago O'Hare Intl

Sun 12/13

11:49 am-4:55 pm

2 stops28h 06m

$256

Washington, D.C.Chicago

DCA Washington, D.C. Reagan-National - ORD Chicago O'Hare Intl

DCAORD

Washington, D.C. Reagan-National

Thu 12/10

6:00 pm-10:46 am

2 stops17h 46m

Chicago O'Hare Intl

Tue 12/15

7:25 am-4:55 pm

1 stop8h 30m

$259

Washington, D.C.Chicago

IAD Washington, D.C. Dulles Intl - ORD Chicago O'Hare Intl

IADORD

Washington, D.C. Dulles Intl

Sat 12/5

8:15 am-9:37 am

Nonstop2h 22m

Chicago O'Hare Intl

Mon 12/7

9:35 pm-12:24 am

Nonstop1h 49m

$277

Washington, D.C.Chicago

IAD Washington, D.C. Dulles Intl - ORD Chicago O'Hare Intl

IADORD

Washington, D.C. Dulles Intl

Fri 12/11

8:15 am-9:37 am

Nonstop2h 22m

Chicago O'Hare Intl

Mon 12/14

9:35 pm-12:24 am

Nonstop1h 49m

$277

Quickest round-trip

Washington, D.C.Chicago

DCA Washington, D.C. Reagan-National - MDW Chicago Midway

DCAMDW

Washington, D.C. Reagan-National

Fri 12/25

6:10 am-7:15 am

Nonstop2h 05m

Chicago Midway

Wed 12/30

5:35 am-8:25 am

Nonstop1h 50m

$277

Washington, D.C.Chicago

DCA Washington, D.C. Reagan-National - MDW Chicago Midway

DCAMDW

Washington, D.C. Reagan-National

Sat 12/5

2:35 pm-3:40 pm

Nonstop2h 05m

Chicago Midway

Mon 12/7

12:05 pm-2:55 pm

Nonstop1h 50m

$277

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Washington, D.C. is in January. Flight prices, which tend to average around $298, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $308.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Washington, D.C. to Illinois is on a Thursday when prices can be found for as low as $447. Flights from Washington, D.C. to Illinois on a Monday will generally be more expensive and average around $582. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Washington, D.C. to Illinois during this time can be as low as $450. Flights in the afternoon are often more expensive with an average ticket price of $523.

What is the cheapest Washington, D.C. to Illinois flight route?

Fly from Baltimore/Washington to Chicago O'Hare Intl for the best Washington, D.C. - Illinois flight prices

How far in advance should I book a flight from Washington, D.C. to Illinois?

You are more likely to see cheaper flights to Illinois from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $417 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Washington, D.C. for as low as $296 on momondo.

What cabin class options are available on Washington, D.C. to Illinois flights?

There are 4 cabin classes available to choose from on Washington, D.C. to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to Illinois flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. to Illinois.

Cheap Washington, D.C. to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Illinois

Best Price Found	$116
Fastest flight time	2h 00m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Washington, D.C. in the past 72 hours is $116. The best round-trip flight deal from Washington, D.C. to Illinois found on momondo in the last 72 hours is $220.

The fastest flight from Washington, D.C. to Illinois takes 2h 00m

Direct flights go from Washington, D.C. to Illinois every day.

There are 98 airports in Illinois. From Washington, D.C. there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

Frequently asked questions about flying from Washington, D.C. to Illinois

When did momondo last update prices for flights from Washington, D.C. to Illinois?
Prices for flights from Washington, D.C. to Illinois were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Illinois?
The number of operators available for flights from Washington, D.C. to Illinois is 4 as of November 2026.
How old do you have to be to fly from Washington, D.C. to Illinois?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. to Illinois is Boeing 737 MAX 8 (13.65% of total bookings). The next most popular plane models are Airbus A319 (11.57%), Boeing 737-800 (11.08%), and Airbus A321neo (10.78%).

Best airlines flying from Washington, D.C. to Illinois

Compare and see reviews for airlines that fly from Washington, D.C. to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $29	Free Cancellation	Rating 5.5 2,512 reviews	Search Frontier flights
United Airlines	PriceFrom $131	Free Cancellation	Rating 7.3 10,458 reviews	Search United Airlines flights
American Airlines	PriceFrom $197	Free Cancellation	Rating 7.0 12,231 reviews	Search American Airlines flights
Southwest	PriceFrom $198	Free Cancellation	Rating 8.0 4,211 reviews	Search Southwest flights
Delta	PriceFrom $308	Free Cancellation	Rating 7.8 8,698 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Illinois for you.

Can I find flights from Washington, D.C. to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Illinois?

momondo provides multiple filters to help you find the best flight to Illinois from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington, D.C. to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Flights to Las Vegasfrom $38

Flights to Washington, D.C.from $46

Flights to Fort Lauderdalefrom $38

Flights to Bostonfrom $71

Flights to Atlantafrom $46

Flights to Dallasfrom $38

Cheap flights from Washington, D.C. to Illinois from $116

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Illinois departing on 11/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Washington, D.C. to Illinois

Cheap round-trip flights

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Cheap last minute flights

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Filter for what you want

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Frontier flights from Washington, D.C. to Illinois

Our best Frontier deals on Washington, D.C. to Illinois flight tickets

United Airlines flights from Washington, D.C. to Illinois

Our best United Airlines deals on Washington, D.C. to Illinois flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from Washington, D.C. to Illinois

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest time of day to depart on your flight to Illinois?

What is the cheapest Washington, D.C. to Illinois flight route?

How far in advance should I book a flight from Washington, D.C. to Illinois?

What cabin class options are available on Washington, D.C. to Illinois flights?

Can stopping save me money on Washington, D.C. to Illinois flights?

What is the cheapest airline that flies from Washington, D.C. to Illinois?

What airlines fly to Illinois?

How many flights depart from Washington, D.C. to Illinois on average per day?

How many flights depart from Washington, D.C. to Illinois on average per week?

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