How many flights depart from District of Columbia to Illinois on average per day?

As of September 2026, there are 46 flights per day flying from District of Columbia to Illinois. The most common time of day flights depart is 5:00PM, with 44% of flights taking off at noon.

What is the cheapest airline that flies from District of Columbia to Illinois?

Frontier, Delta, and Southwest are the most popular carriers operating from District of Columbia 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 District of Columbia 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 District of Columbia to Illinois on average per week?

As of September 2026, 328 flights take off from District of Columbia and land in Illinois each week. The most common flight departure day for this route is Mon, with 33% of weekly flights taking off on this day.

When did momondo last update prices for flights from District of Columbia to Illinois?

Prices for flights from District of Columbia to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from District of Columbia to Illinois?

As of September 2026, there are 5 operators available to choose from for flights from District of Columbia to Illinois.

How old do you have to be to fly from District of Columbia to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Illinois.

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

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$95 Cheap Flights from District of Columbia to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from District of Columbia to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:50 am - 5:46 pmIAD Washington, D.C. Dulles Intl-MDW Chicago Midway

10h 56m1 stop Atlanta Hartsfield-Jackson

6:25 am - 5:18 pmMDW Chicago Midway-IAD Washington, D.C. Dulles Intl

9h 53m1 stop Atlanta Hartsfield-Jackson

$180Frontier

Tue, Sep 29 - Wed, Sep 30

7:50 am - 6:23 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

11h 33m1 stop Atlanta Hartsfield-Jackson

6:00 am - 3:34 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

8h 34m1 stop Dallas/Fort Worth

$180Frontier

Tue, Sep 29 - Wed, Sep 30

6:00 am - 10:53 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

5h 53m1 stop Newark

9:00 am - 12:08 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 08mnonstop

$208United Airlines

Fri, Sep 25 - Fri, Oct 2

5:20 pm - 9:21 pmIAD Washington, D.C. Dulles Intl-STL Lambert-St Louis

5h 01m1 stop Chicago O'Hare Intl

6:00 am - 11:55 amSTL Lambert-St Louis-IAD Washington, D.C. Dulles Intl

4h 55m1 stop Chicago O'Hare Intl

$237United Airlines

Mon, Oct 5 - Wed, Oct 7

2:25 pm - 3:57 pmDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 32mnonstop

10:48 am - 1:59 pmSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

2h 11mnonstop

$237American Airlines

Thu, Oct 8 - Tue, Oct 13

10:59 am - 12:35 pmDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 36mnonstop

5:08 pm - 8:18 pmSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

2h 10mnonstop

$237American Airlines

Wed, Oct 21 - Thu, Oct 22

2:40 pm - 4:05 pmDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 25mnonstop

4:00 pm - 6:55 pmSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

1h 55mnonstop

$237Southwest

Mon, Dec 14 - Wed, Dec 16

2:40 pm - 4:05 pmDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 25mnonstop

8:40 am - 11:35 amSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

1h 55mnonstop

$237Southwest

Mon, Nov 2 - Sat, Nov 7

8:13 am - 1:20 pmIAD Washington, D.C. Dulles Intl-STL Lambert-St Louis

6h 07m1 stop Atlanta Hartsfield-Jackson

5:38 pm - 12:42 amSTL Lambert-St Louis-IAD Washington, D.C. Dulles Intl

6h 04m1 stop Atlanta Hartsfield-Jackson

$237Delta

Thu, Oct 29 - Mon, Nov 2

6:05 am - 9:49 amIAD Washington, D.C. Dulles Intl-STL Lambert-St Louis

4h 44m1 stop Detroit Metropolitan Wayne County

7:20 pm - 12:42 amSTL Lambert-St Louis-IAD Washington, D.C. Dulles Intl

4h 22m1 stop Atlanta Hartsfield-Jackson

$237Delta

Thu, Oct 15 - Mon, Oct 19

Cheap last minute flights

Enter your travel dates to find the best prices.

7:50 am - 6:23 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

11h 33m1 stop Atlanta Hartsfield-Jackson

8:04 am - 8:11 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

11h 07m1 stop Fort Lauderdale

$222Frontier

Wed, Sep 9 - Tue, Oct 20

7:50 am - 5:51 pmIAD Washington, D.C. Dulles Intl-MDW Chicago Midway

11h 01m1 stop Atlanta Hartsfield-Jackson

6:25 am - 5:18 pmMDW Chicago Midway-IAD Washington, D.C. Dulles Intl

9h 53m1 stop Atlanta Hartsfield-Jackson

$237Frontier

Wed, Sep 9 - Sat, Sep 12

6:46 pm - 10:59 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

29h 13m2 stops Blountville Tri Cities TN/VA Orlando

8:55 pm - 6:20 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

32h 25m1 stop Las Vegas Harry Reid Intl

$342Multiple Airlines

Fri, Sep 11 - Fri, Sep 18

5:15 pm - 8:59 pmIAD Washington, D.C. Dulles Intl-PIA Greater Peoria

4h 44m1 stop Chicago O'Hare Intl

10:32 am - 4:01 pmPIA Greater Peoria-IAD Washington, D.C. Dulles Intl

4h 29m1 stop Chicago O'Hare Intl

$365United Airlines

Sat, Sep 12 - Wed, Sep 16

6:14 am - 4:58 pmIAD Washington, D.C. Dulles Intl-PIA Greater Peoria

11h 44m2 stops Charlotte Douglas Chicago O'Hare Intl

4:27 pm - 10:51 pmPIA Greater Peoria-IAD Washington, D.C. Dulles Intl

5h 24m1 stop Charlotte Douglas

$370American Airlines

Sat, Sep 12 - Wed, Sep 16

6:36 pm - 10:59 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

29h 23m2 stops Blountville Tri Cities TN/VA Orlando

3:50 pm - 10:17 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

17h 27m1 stop Orlando

$376Multiple Airlines

Mon, Sep 14 - Fri, Sep 18

6:15 pm - 10:57 pmIAD Washington, D.C. Dulles Intl-PIA Greater Peoria

5h 42m1 stop Charlotte Douglas

4:27 pm - 10:51 pmPIA Greater Peoria-IAD Washington, D.C. Dulles Intl

5h 24m1 stop Charlotte Douglas

$379American Airlines

Mon, Sep 14 - Fri, Sep 25

6:13 am - 9:57 amIAD Washington, D.C. Dulles Intl-PIA Greater Peoria

4h 44m1 stop Chicago O'Hare Intl

5:50 am - 1:55 pmPIA Greater Peoria-IAD Washington, D.C. Dulles Intl

7h 05m1 stop Chicago O'Hare Intl

$387United Airlines

Fri, Sep 11 - Wed, Sep 16

7:55 am - 8:50 amDCA Washington, D.C. Reagan-National-MDW Chicago Midway

1h 55mnonstop

6:15 pm - 9:10 pmMDW Chicago Midway-DCA Washington, D.C. Reagan-National

1h 55mnonstop

$400Southwest

Sun, Sep 13 - Sat, Oct 10

6:00 pm - 7:05 pmDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 05mnonstop

6:00 am - 8:50 amMDW Chicago Midway-DCA Washington, D.C. Reagan-National

1h 50mnonstop

$400Southwest

Sun, Sep 13 - Thu, Oct 15

Cheap direct flights

Enter your travel dates to find the best prices.

2:54 pm - 4:27 pmDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 33mnonstop

5:08 pm - 8:18 pmSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

2h 10mnonstop

$237American Airlines

Thu, Oct 1 - Mon, Oct 5

2:25 pm - 3:57 pmDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 32mnonstop

10:48 am - 1:59 pmSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

2h 11mnonstop

$237American Airlines

Thu, Oct 8 - Tue, Oct 13

2:40 pm - 4:05 pmDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 25mnonstop

8:40 am - 11:35 amSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

1h 55mnonstop

$237Southwest

Mon, Nov 2 - Sat, Nov 7

8:15 am - 9:40 amDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 25mnonstop

7:50 pm - 10:55 pmSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

2h 05mnonstop

$237Southwest

Sat, Oct 17 - Mon, Oct 19

1:31 pm - 3:13 pmDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 42mnonstop

10:42 am - 1:48 pmSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

2h 06mnonstop

$237American Airlines

Thu, Feb 4 - Mon, Feb 8

12:00 pm - 1:25 pmDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 25mnonstop

3:55 pm - 6:50 pmSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

1h 55mnonstop

$237Southwest

Mon, Nov 9 - Thu, Nov 12

11:10 am - 12:46 pmDCA Washington, D.C. Reagan-National-STL Lambert-St Louis

2h 36mnonstop

5:08 pm - 8:18 pmSTL Lambert-St Louis-DCA Washington, D.C. Reagan-National

2h 10mnonstop

$237American Airlines

Mon, Oct 12 - Thu, Oct 15

8:40 am - 10:12 amIAD Washington, D.C. Dulles Intl-STL Lambert-St Louis

2h 32mnonstop

1:00 pm - 4:09 pmSTL Lambert-St Louis-IAD Washington, D.C. Dulles Intl

2h 09mnonstop

$266United Airlines

Thu, Oct 29 - Mon, Nov 2

8:40 am - 10:12 amIAD Washington, D.C. Dulles Intl-STL Lambert-St Louis

2h 32mnonstop

8:00 am - 11:10 amSTL Lambert-St Louis-IAD Washington, D.C. Dulles Intl

2h 10mnonstop

$275United Airlines

Thu, Oct 29 - Mon, Nov 2

8:20 am - 9:48 amIAD Washington, D.C. Dulles Intl-STL Lambert-St Louis

2h 28mnonstop

8:25 am - 11:31 amSTL Lambert-St Louis-IAD Washington, D.C. Dulles Intl

2h 06mnonstop

$276United Airlines

Tue, Jan 5 - Tue, Jan 26

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Frontier flights from District of Columbia to Illinois

Our best Frontier deals on District of Columbia to Illinois flight tickets

Frontier

Sep 29

IAD7:50 amWashington, D.C. Dulles Intl

11h 33m

1 stop

ORD6:23 pmChicago O'Hare Intl

Sep 30

ORD6:00 amChicago O'Hare Intl

8h 34m

1 stop

IAD3:34 pmWashington, D.C. Dulles Intl

$180

Frontier

Sep 28

IAD6:13 pmWashington, D.C. Dulles Intl

22h 07m

1 stop

ORD3:20 pmChicago O'Hare Intl

Sep 30

ORD3:50 pmChicago O'Hare Intl

17h 37m

1 stop

IAD10:27 amWashington, D.C. Dulles Intl

$188

Frontier

Sep 29

IAD7:50 amWashington, D.C. Dulles Intl

10h 56m

1 stop

MDW5:46 pmChicago Midway

Sep 30

MDW6:25 amChicago Midway

9h 53m

1 stop

IAD5:18 pmWashington, D.C. Dulles Intl

$190

United Airlines flights from District of Columbia to Illinois

Our best United Airlines deals on District of Columbia to Illinois flight tickets

United Airlines

Sep 25

DCA6:00 amWashington, D.C. Reagan-National

5h 53m

1 stop

ORD10:53 amChicago O'Hare Intl

Oct 2

ORD9:00 amChicago O'Hare Intl

2h 08m

DCA12:08 pmWashington, D.C. Reagan-National

$208

United Airlines

Nov 9

IAD8:23 amWashington, D.C. Dulles Intl

4h 47m

1 stop

STL12:10 pmLambert-St Louis

Nov 12

STL1:00 pmLambert-St Louis

2h 09m

IAD4:09 pmWashington, D.C. Dulles Intl

$247

United Airlines

Dec 14

IAD8:35 amWashington, D.C. Dulles Intl

4h 35m

1 stop

STL12:10 pmLambert-St Louis

Dec 16

STL8:30 amLambert-St Louis

2h 06m

IAD11:36 amWashington, D.C. Dulles Intl

$265

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia 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 - MDW Chicago Midway

IADMDW

Washington, D.C. Dulles Intl

Tue 9/29

7:50 am-5:46 pm

1 stop10h 56m

Chicago Midway

Wed 9/30

6:25 am-5:18 pm

1 stop9h 53m

$180

Washington, D.C.Chicago

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

IADORD

Washington, D.C. Dulles Intl

Tue 9/29

7:50 am-6:23 pm

1 stop11h 33m

Chicago O'Hare Intl

Wed 9/30

6:00 am-3:34 pm

1 stop8h 34m

$180

Washington, D.C.Chicago

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

DCAORD

Washington, D.C. Reagan-National

Fri 9/25

6:00 am-10:53 am

1 stop5h 53m

Chicago O'Hare Intl

Fri 10/2

9:00 am-12:08 pm

Nonstop2h 08m

$208

Washington, D.C.St. Louis

IAD Washington, D.C. Dulles Intl - STL Lambert-St Louis

IADSTL

Washington, D.C. Dulles Intl

Mon 10/5

5:20 pm-9:21 pm

1 stop5h 01m

Lambert-St Louis

Wed 10/7

6:00 am-11:55 am

1 stop4h 55m

$237

Washington, D.C.St. Louis

DCA Washington, D.C. Reagan-National - STL Lambert-St Louis

DCASTL

Washington, D.C. Reagan-National

Thu 10/8

2:25 pm-3:57 pm

Nonstop2h 32m

Lambert-St Louis

Tue 10/13

10:48 am-1:59 pm

Nonstop2h 11m

$237

Washington, D.C.St. Louis

DCA Washington, D.C. Reagan-National - STL Lambert-St Louis

DCASTL

Washington, D.C. Reagan-National

Wed 10/21

10:59 am-12:35 pm

Nonstop2h 36m

Lambert-St Louis

Thu 10/22

5:08 pm-8:18 pm

Nonstop2h 10m

$237

Quickest round-trip

Washington, D.C.St. Louis

DCA Washington, D.C. Reagan-National - STL Lambert-St Louis

DCASTL

Washington, D.C. Reagan-National

Mon 12/14

2:40 pm-4:05 pm

Nonstop2h 25m

Lambert-St Louis

Wed 12/16

4:00 pm-6:55 pm

Nonstop1h 55m

$237

Washington, D.C.St. Louis

DCA Washington, D.C. Reagan-National - STL Lambert-St Louis

DCASTL

Washington, D.C. Reagan-National

Mon 11/2

2:40 pm-4:05 pm

Nonstop2h 25m

Lambert-St Louis

Sat 11/7

8:40 am-11:35 am

Nonstop1h 55m

$237

Washington, D.C.St. Louis

IAD Washington, D.C. Dulles Intl - STL Lambert-St Louis

IADSTL

Washington, D.C. Dulles Intl

Thu 10/29

8:13 am-1:20 pm

1 stop6h 07m

Lambert-St Louis

Mon 11/2

5:38 pm-12:42 am

1 stop6h 04m

$237

Washington, D.C.St. Louis

IAD Washington, D.C. Dulles Intl - STL Lambert-St Louis

IADSTL

Washington, D.C. Dulles Intl

Thu 10/15

6:05 am-9:49 am

1 stop4h 44m

Lambert-St Louis

Mon 10/19

7:20 pm-12:42 am

1 stop4h 22m

$237

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 District of Columbia 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 District of Columbia is in October. Flight prices, which tend to average around $281, 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 October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $293.

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

The cheapest day to depart from District of Columbia to Illinois is on a Thursday when prices can be found for as low as $431. Flights from District of Columbia to Illinois on a Monday will generally be more expensive and average around $584. 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 District of Columbia to Illinois during this time can be as low as $434. Flights in the afternoon are often more expensive with an average ticket price of $518.

What is the cheapest District of Columbia to Illinois flight route?

Fly from Baltimore/Washington to Chicago O'Hare Intl for the best District of Columbia - Illinois flight prices

How far in advance should I book a flight from District of Columbia to Illinois?

You are more likely to see cheaper flights to Illinois from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $401 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from District of Columbia for as low as $297 on momondo.

What cabin class options are available on District of Columbia to Illinois flights?

There are 4 cabin classes available to choose from on District of Columbia 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 District of Columbia to Illinois flights?

No. A direct flight is the cheapest option for a flight between District of Columbia to Illinois.

Cheap District of Columbia to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Illinois

Best Price Found	$95
Fastest flight time	2h 00m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from District of Columbia in the past 72 hours is $95. The best round-trip flight deal from District of Columbia to Illinois found on momondo in the last 72 hours is $180.

The fastest flight from District of Columbia to Illinois takes 2h 00m

Direct flights go from District of Columbia to Illinois every day.

There are 98 airports in Illinois. From District of Columbia there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

Frequently asked questions about flying from District of Columbia to Illinois

When did momondo last update prices for flights from District of Columbia to Illinois?
Prices for flights from District of Columbia to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from District of Columbia to Illinois?
As of September 2026, there are 5 operators available to choose from for flights from District of Columbia to Illinois.
How old do you have to be to fly from District of Columbia to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from District of Columbia to Illinois?
momondo data reveals that the most frequently booked plane model on the route from District of Columbia to Illinois is Boeing 737 MAX 8, representing 14.36% of all bookings. The subsequent popular models are Boeing 737-800 at 12.69%, Airbus A320-100/200 at 11.01%, and Airbus A319 at 10.53%.

Best airlines flying from District of Columbia to Illinois

Compare and see reviews for airlines that fly from District of Columbia to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $29	Free Cancellation	Rating 5.6 2,612 reviews	Search Frontier flights
United Airlines	PriceFrom $131	Free Cancellation	Rating 7.4 10,183 reviews	Search United Airlines flights
Delta	PriceFrom $149	Free Cancellation	Rating 7.8 8,550 reviews	Search Delta flights
Southwest	PriceFrom $179	Free Cancellation	Rating 8.0 4,197 reviews	Search Southwest flights
American Airlines	PriceFrom $179	Free Cancellation	Rating 7.1 12,039 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Illinois?

Finding the right flight to Illinois from District of Columbia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from District of Columbia to Illinois with flexible booking policies on momondo?

All flight searches from District of Columbia to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from District of Columbia to Illinois?

Once all potential District of Columbia to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from District of Columbia to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for District of Columbia 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.

An easier way to manage your Illinois trip

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Complete your trip

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Popular cities in Illinois

Flights to New Yorkfrom $54

Flights to Los Angelesfrom $40

Flights to Orlandofrom $57

Flights to Miamifrom $57

Flights to San Franciscofrom $48

Flights to Chicagofrom $50

Flights to Las Vegasfrom $44

Flights to Washington, D.C.from $59

Flights to Fort Lauderdalefrom $64

Flights to Bostonfrom $94

Flights to Atlantafrom $42

Flights to Dallasfrom $76

Cheap flights from District of Columbia to Illinois from $95

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Illinois departing on 9/29. 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 District of Columbia to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Price Alerts

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Frontier flights from District of Columbia to Illinois

Our best Frontier deals on District of Columbia to Illinois flight tickets

United Airlines flights from District of Columbia to Illinois

Our best United Airlines deals on District of Columbia to Illinois flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from District of Columbia 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 District of Columbia to Illinois flight route?

How far in advance should I book a flight from District of Columbia to Illinois?

What cabin class options are available on District of Columbia to Illinois flights?

Can stopping save me money on District of Columbia to Illinois flights?

What is the cheapest airline that flies from District of Columbia to Illinois?

What airlines fly to Illinois?

How many flights depart from District of Columbia to Illinois on average per day?

How many flights depart from District of Columbia to Illinois on average per week?

Cheap District of Columbia to Illinois flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying from District of Columbia to Illinois

Best airlines flying from District of Columbia to Illinois

Compare and see reviews for airlines that fly from District of Columbia to Illinois with momondo

Why use momondo?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo

District of Columbia flight routes

According to popular flight searches on momondo this year

Illinois flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Illinois

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Illinois

Explore popular destinations other users love

According to popular flight searches on momondo this year