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

United Airlines, Southwest, and Delta are the most popular carriers operating from District of Columbia to Illinois

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

As of October 2026, there are 28 flights per day flying from District of Columbia to Illinois. The most common time of day flights depart is 6:00AM, with 48% of flights taking off at noon.

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

As of October 2026, 201 flights take off from District of Columbia and land in Illinois each week. The most common flight departure day for this route is Fri, with 50% of weekly flights taking off on this day.

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.

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 October 2026, there are 4 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.

$114 Cheap Flights from District of Columbia to Illinois in 2026/27

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.

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

22h 30m1 stop Fort Lauderdale

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

11h 16m1 stop Fort Lauderdale

$210Frontier

Thu, Nov 12 - Sat, Nov 14

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

10h 51m1 stop Dallas/Fort Worth

8:30 am - 5:38 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

8h 08m1 stop Atlanta Hartsfield-Jackson

$211Frontier

Sat, Nov 21 - Sat, Dec 5

5:00 am - 8:59 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

4h 59m1 stop Charlotte Douglas

7:50 am - 10:52 amORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 02mnonstop

$213American Airlines

Thu, Nov 19 - Mon, Nov 23

5:00 am - 9:24 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

5h 24m1 stop Charlotte Douglas

8:59 pm - 11:59 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 00mnonstop

$213American Airlines

Mon, Dec 28 - Wed, Jan 6

10:05 am - 4:37 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

7h 32m1 stop Atlanta Hartsfield-Jackson

5:30 am - 11:59 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

5h 29m1 stop Atlanta Hartsfield-Jackson

$213Delta

Sun, Jan 17 - Sun, Jan 31

6:00 am - 10:39 amIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

5h 39m1 stop Detroit Metropolitan Wayne County

5:30 am - 11:37 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

5h 07m1 stop Atlanta Hartsfield-Jackson

$213Delta

Sun, Nov 15 - Sun, Nov 22

8:00 am - 12:40 pmDCA Washington, D.C. Reagan-National-MDW Chicago Midway

5h 40m1 stop Kansas City

8:25 am - 11:25 amMDW Chicago Midway-DCA Washington, D.C. Reagan-National

2h 00mnonstop

$214Southwest

Mon, Jan 11 - Thu, Jan 14

9:00 pm - 10:05 pmDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 05mnonstop

9:55 am - 3:20 pmMDW Chicago Midway-DCA Washington, D.C. Reagan-National

4h 25m1 stop Nashville Intl

$217Southwest

Mon, Nov 30 - Tue, Dec 1

10:05 am - 2:15 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

5h 10m1 stop Newark

12:29 pm - 3:32 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 03mnonstop

$218United Airlines

Thu, Jan 21 - Mon, Jan 25

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

2h 22mnonstop

8:52 am - 11:53 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

2h 01mnonstop

$218United Airlines

Fri, Dec 4 - Sun, Dec 6

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

9:51 am - 10:21 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

23h 30m1 stop Orlando

$243Frontier

Fri, Oct 30 - Tue, Nov 3

7:00 am - 12:21 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

18h 21m1 stop Denver Intl

6:30 am - 4:47 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

9h 17m1 stop Denver Intl

$260Frontier

Tue, Oct 27 - Tue, Nov 3

2:06 pm - 7:29 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

6h 23m1 stop Boston Logan Intl

1:00 pm - 8:09 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

6h 09m1 stop Boston Logan Intl

$343JetBlue

Fri, Oct 30 - Tue, Nov 10

6:35 pm - 7:35 pmDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 00mnonstop

5:10 pm - 7:55 pmMDW Chicago Midway-DCA Washington, D.C. Reagan-National

1h 45mnonstop

$344Southwest

Sun, Oct 25 - Mon, Jan 4

6:35 pm - 7:35 pmDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 00mnonstop

11:10 am - 4:15 pmMDW Chicago Midway-DCA Washington, D.C. Reagan-National

4h 05m1 stop Lambert-St Louis

$354Southwest

Sun, Oct 25 - Mon, Jan 4

8:41 am - 10:07 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 26mnonstop

4:56 pm - 7:59 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 03mnonstop

$379American Airlines

Tue, Oct 27 - Fri, Nov 27

6:00 pm - 12:21 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

7h 21m1 stop Denver Intl

7:00 am - 9:59 amORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

25h 59m1 stop Fort Lauderdale

$397Multiple Airlines

Fri, Oct 30 - Tue, Nov 3

6:11 am - 9:44 amIAD Washington, D.C. Dulles Intl-MLI Moline Quad-City

4h 33m1 stop Chicago O'Hare Intl

2:30 pm - 9:15 pmMLI Moline Quad-City-IAD Washington, D.C. Dulles Intl

5h 45m1 stop Chicago O'Hare Intl

$409United Airlines

Thu, Oct 29 - Sat, Oct 31

5:29 pm - 10:59 pmIAD Washington, D.C. Dulles Intl-MLI Moline Quad-City

6h 30m1 stop Chicago O'Hare Intl

8:13 am - 1:35 pmMLI Moline Quad-City-IAD Washington, D.C. Dulles Intl

4h 22m1 stop Chicago O'Hare Intl

$409United Airlines

Fri, Oct 30 - Wed, Nov 4

7:18 pm - 11:56 pmDCA Washington, D.C. Reagan-National-PIA Greater Peoria

5h 38m1 stop Charlotte Douglas

6:02 am - 11:49 amPIA Greater Peoria-DCA Washington, D.C. Reagan-National

4h 47m1 stop Chicago O'Hare Intl

$429American Airlines

Fri, Oct 30 - Sun, Nov 1

Cheap direct flights

Enter your travel dates to find the best prices.

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

2h 22mnonstop

8:52 am - 11:53 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

2h 01mnonstop

$218United Airlines

Sat, Dec 5 - Sun, Dec 6

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

2h 22mnonstop

8:52 am - 11:53 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

2h 01mnonstop

$218United Airlines

Fri, Dec 4 - Sun, Dec 6

7:40 am - 9:00 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 20mnonstop

7:00 am - 9:56 amORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

1h 56mnonstop

$219United Airlines

Mon, Nov 9 - Tue, Nov 10

10:10 am - 11:31 amIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

2h 21mnonstop

8:45 am - 11:46 amORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

2h 01mnonstop

$219United Airlines

Tue, Dec 1 - Thu, Dec 3

8:39 am - 10:05 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 26mnonstop

5:49 pm - 8:52 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 03mnonstop

$223American Airlines

Sat, Nov 14 - Sat, Nov 14

12:53 pm - 2:15 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 22mnonstop

7:31 pm - 10:29 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

1h 58mnonstop

$223American Airlines

Tue, Nov 17 - Tue, Nov 17

10:20 am - 11:34 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 14mnonstop

12:55 pm - 3:59 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

2h 04mnonstop

$223American Airlines

Thu, Dec 3 - Fri, Dec 4

11:00 am - 12:05 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

$230Southwest

Thu, Dec 10 - Tue, Dec 29

9:40 am - 10:50 amDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 10mnonstop

6:05 pm - 8:55 pmMDW Chicago Midway-DCA Washington, D.C. Reagan-National

1h 50mnonstop

$233Southwest

Thu, Jan 14 - Sat, Jan 16

9:35 pm - 10:40 pmDCA Washington, D.C. Reagan-National-MDW Chicago Midway

2h 05mnonstop

1:40 pm - 4:30 pmMDW Chicago Midway-DCA Washington, D.C. Reagan-National

1h 50mnonstop

$233Southwest

Mon, Jan 18 - Thu, Jan 21

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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

Nov 12

IAD6:07 pmWashington, D.C. Dulles Intl

22h 30m

1 stop

ORD3:37 pmChicago O'Hare Intl

Nov 14

ORD7:55 amChicago O'Hare Intl

11h 16m

1 stop

IAD8:11 pmWashington, D.C. Dulles Intl

$210

Frontier

Nov 9

IAD9:06 pmWashington, D.C. Dulles Intl

19h 25m

2 stops

ORD3:31 pmChicago O'Hare Intl

Nov 11

ORD8:59 amChicago O'Hare Intl

13h 44m

2 stops

IAD11:43 pmWashington, D.C. Dulles Intl

$213

Frontier

Dec 7

IAD10:35 pmWashington, D.C. Dulles Intl

27h 33m

2 stops

ORD1:08 amChicago O'Hare Intl

Dec 10

ORD10:37 pmChicago O'Hare Intl

14h 45m

2 stops

IAD2:22 pmWashington, D.C. Dulles Intl

$214

American Airlines flights from District of Columbia to Illinois

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

American Airlines

Nov 19

DCA5:00 amWashington, D.C. Reagan-National

4h 59m

1 stop

ORD8:59 amChicago O'Hare Intl

Nov 24

ORD2:52 pmChicago O'Hare Intl

2h 12m

DCA6:04 pmWashington, D.C. Reagan-National

$213

American Airlines

Nov 19

DCA5:00 amWashington, D.C. Reagan-National

4h 59m

1 stop

ORD8:59 amChicago O'Hare Intl

Nov 22

ORD8:45 amChicago O'Hare Intl

2h 04m

DCA11:49 amWashington, D.C. Reagan-National

$222

American Airlines

Nov 13

DCA5:00 amWashington, D.C. Reagan-National

5h 00m

1 stop

ORD9:00 amChicago O'Hare Intl

Nov 17

ORD7:31 pmChicago O'Hare Intl

1h 58m

DCA10:29 pmWashington, D.C. Reagan-National

$230

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 - ORD Chicago O'Hare Intl

IADORD

Washington, D.C. Dulles Intl

Thu 11/12

6:07 pm-3:37 pm

1 stop22h 30m

Chicago O'Hare Intl

Sat 11/14

7:55 am-8:11 pm

1 stop11h 16m

$210

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

Sat 12/5

8:30 am-5:38 pm

1 stop8h 08m

$211

Washington, D.C.Chicago

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

DCAORD

Washington, D.C. Reagan-National

Thu 11/19

5:00 am-8:59 am

1 stop4h 59m

Chicago O'Hare Intl

Mon 11/23

7:50 am-10:52 am

Nonstop2h 02m

$213

Washington, D.C.Chicago

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

DCAORD

Washington, D.C. Reagan-National

Mon 12/28

5:00 am-9:24 am

1 stop5h 24m

Chicago O'Hare Intl

Wed 1/6

8:59 pm-11:59 pm

Nonstop2h 00m

$213

Washington, D.C.Chicago

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

IADORD

Washington, D.C. Dulles Intl

Sun 1/17

10:05 am-4:37 pm

1 stop7h 32m

Chicago O'Hare Intl

Sun 1/31

5:30 am-11:59 am

1 stop5h 29m

$213

Washington, D.C.Chicago

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

IADORD

Washington, D.C. Dulles Intl

Sun 11/15

6:00 am-10:39 am

1 stop5h 39m

Chicago O'Hare Intl

Sun 11/22

5:30 am-11:37 am

1 stop5h 07m

$213

Washington, D.C.Chicago

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

DCAMDW

Washington, D.C. Reagan-National

Mon 1/11

8:00 am-12:40 pm

1 stop5h 40m

Chicago Midway

Thu 1/14

8:25 am-11:25 am

Nonstop2h 00m

$214

Washington, D.C.Chicago

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

DCAMDW

Washington, D.C. Reagan-National

Mon 11/30

9:00 pm-10:05 pm

Nonstop2h 05m

Chicago Midway

Tue 12/1

9:55 am-3:20 pm

1 stop4h 25m

$217

Washington, D.C.Chicago

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

DCAORD

Washington, D.C. Reagan-National

Thu 1/21

10:05 am-2:15 pm

1 stop5h 10m

Chicago O'Hare Intl

Mon 1/25

12:29 pm-3:32 pm

Nonstop2h 03m

$218

Quickest round-trip

Washington, D.C.Chicago

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

IADORD

Washington, D.C. Dulles Intl

Fri 12/4

8:15 am-9:37 am

Nonstop2h 22m

Chicago O'Hare Intl

Sun 12/6

8:52 am-11:53 am

Nonstop2h 01m

$218

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 January. Flight prices, which tend to average around $293, 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 $307.

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 $444. Flights from District of Columbia to Illinois on a Monday will generally be more expensive and average around $587. 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 $446. Flights in the afternoon are often more expensive with an average ticket price of $521.

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 $412 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 $302 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?

You could potentially save up to 6% on your flight if you consider stops on a District of Columbia to Illinois flight.

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	$114
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 $114. The best round-trip flight deal from District of Columbia to Illinois found on momondo in the last 72 hours is $210.

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 October 2026, there are 4 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 14.17% of all bookings. The subsequent popular models are Boeing 737-800 at 11.80%, Airbus A319 at 11.28%, and Airbus A320-100/200 at 10.84%.

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 5.5 2,519 reviews	Search Frontier flights
United Airlines	PriceFrom $131	Free Cancellation	Rating 7.3 10,432 reviews	Search United Airlines flights
Southwest	PriceFrom $194	Free Cancellation	Rating 7.9 4,221 reviews	Search Southwest flights
American Airlines	PriceFrom $197	Free Cancellation	Rating 7.0 12,192 reviews	Search American Airlines flights
Delta	PriceFrom $308	Free Cancellation	Rating 7.8 8,678 reviews	Search Delta 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.

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Popular cities in Illinois

Flights to New Yorkfrom $65

Flights to Los Angelesfrom $39

Flights to Orlandofrom $39

Flights to Miamifrom $43

Flights to San Franciscofrom $42

Flights to Chicagofrom $60

Flights to Las Vegasfrom $36

Flights to Washington, D.C.from $35

Flights to Fort Lauderdalefrom $22

Flights to Bostonfrom $107

Flights to Atlantafrom $38

Flights to Dallasfrom $50

Cheap flights from District of Columbia to Illinois from $114

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 12/22. 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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Frontier flights from District of Columbia to Illinois

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

American Airlines flights from District of Columbia to Illinois

Our best American 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