How long does it take to fly to Washington, D.C.?

Flight times from Illinois to Washington, D.C. vary, but if you’re flying out of Chicago and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 2h 34m on average. Another popular route from Illinois to Washington, D.C. is flying from Peoria to Washington, D.C. Dulles Intl Airport, which will take roughly 4h 14m. Keep in mind that layovers or delays could extend your travel time.

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

As of February 2026, there are 48 flights per day flying from Illinois to Washington, D.C.. The most common time of day flights depart is 6:00PM, with 39% of flights taking off at noon.

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

340 flights are operational weekly from Illinois to Washington, D.C. as of February 2026. The most popular departure day for this route is Wed, with 33% of flights per week taking off on this day.

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

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

What airlines fly to Washington, D.C.?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Washington, D.C. from Illinois according to our data. United Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 7 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Illinois to Washington, D.C. refresh daily.

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

As of February 2026, there are 7 operators available to choose from for flights from Illinois to Washington, D.C..

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents required for your trip to Washington, D.C. 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 Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$60 Cheap Flights from Illinois to Washington, D.C. in 2026

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:25 pm - 3:30 pm

ORD

BWI

2h 05mnonstop

9:43 pm - 9:17 pm

BWI

ORD

24h 34m

1 stop

$103Frontier

Thu, Apr 16 - Mon, Apr 20

5:15 am - 8:24 am

ORD

BWI

2h 09mnonstop

6:00 am - 4:52 pm

BWI

ORD

11h 52m

1 stop

$104Frontier

Thu, Feb 26 - Tue, Mar 3

12:25 pm - 3:30 pm

ORD

BWI

2h 05mnonstop

5:45 am - 2:22 pm

BWI

ORD

9h 37m

1 stop

$111Multiple Airlines

Thu, Apr 16 - Sat, Apr 18

3:10 pm - 12:36 am

ORD

IAD

8h 26m

1 stop

7:05 am - 2:15 pm

IAD

ORD

8h 10m

1 stop

$156Multiple Airlines

Thu, Apr 16 - Sat, Apr 18

10:00 am - 4:04 pm

ORD

DCA

5h 04m

1 stop

6:00 am - 11:48 am

DCA

ORD

6h 48m

1 stop

$190JetBlue

Thu, Mar 5 - Mon, Mar 9

12:35 pm - 3:32 pm

ORD

DCA

1h 57mnonstop

10:30 am - 11:51 am

DCA

ORD

2h 21mnonstop

$197United Airlines

Tue, Mar 10 - Tue, Mar 17

8:30 pm - 11:15 pm

MDW

DCA

1h 45mnonstop

3:40 pm - 4:50 pm

DCA

MDW

2h 10mnonstop

$197Southwest

Wed, Apr 1 - Wed, Apr 8

10:00 am - 6:55 pm

ORD

DCA

7h 55m

1 stop

4:59 pm - 9:36 pm

DCA

ORD

5h 37m

1 stop

$207JetBlue

Tue, Mar 10 - Tue, Apr 28

10:30 am - 6:10 pm

MDW

DCA

6h 40m

1 stop

6:55 pm - 8:00 pm

DCA

MDW

2h 05mnonstop

$207Southwest

Tue, Mar 10 - Tue, Mar 17

8:30 am - 11:43 am

STL

IAD

2h 13mnonstop

5:41 pm - 11:57 pm

IAD

STL

7h 16m

1 stop

$269United Airlines

Wed, Apr 1 - Tue, Apr 7

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

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

United Airlines

Mar 3

ORD6:20 pmChicago O'Hare Intl

1h 58m

IAD9:18 pmWashington, D.C. Dulles Intl

Mar 4

IAD8:15 amWashington, D.C. Dulles Intl

2h 19m

ORD9:34 amChicago O'Hare Intl

$197

United Airlines

Apr 21

ORD7:40 pmChicago O'Hare Intl

2h 03m

DCA10:43 pmWashington, D.C. Reagan-National

Apr 23

DCA11:55 amWashington, D.C. Reagan-National

2h 20m

ORD1:15 pmChicago O'Hare Intl

$221

United Airlines

Mar 14

ORD6:00 pmChicago O'Hare Intl

1h 59m

DCA8:59 pmWashington, D.C. Reagan-National

Mar 22

DCA7:30 amWashington, D.C. Reagan-National

2h 20m

ORD8:50 amChicago O'Hare Intl

$226

Frontier flights from Illinois to Washington, D.C.

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

Frontier

Apr 16

ORD12:25 pmChicago O'Hare Intl

2h 05m

BWI3:30 pmBaltimore/Washington

Apr 20

BWI9:43 pmBaltimore/Washington

24h 34m

1 stop

ORD9:17 pmChicago O'Hare Intl

$103

Frontier

Feb 26

ORD5:15 amChicago O'Hare Intl

2h 09m

BWI8:24 amBaltimore/Washington

Mar 3

BWI6:00 amBaltimore/Washington

11h 52m

1 stop

ORD4:52 pmChicago O'Hare Intl

$104

Frontier

Apr 23

ORD12:25 pmChicago O'Hare Intl

2h 05m

BWI3:30 pmBaltimore/Washington

Apr 26

BWI4:25 pmBaltimore/Washington

2h 26m

ORD5:51 pmChicago O'Hare Intl

$106

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 4/16

12:25 pm-3:30 pm

Nonstop2h 05m

Baltimore/Washington

Mon 4/20

9:43 pm-9:17 pm

1 stop24h 34m

$103

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 2/26

5:15 am-8:24 am

Nonstop2h 09m

Baltimore/Washington

Tue 3/3

6:00 am-4:52 pm

1 stop11h 52m

$104

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 4/16

12:25 pm-3:30 pm

Nonstop2h 05m

Baltimore/Washington

Sat 4/18

5:45 am-2:22 pm

1 stop9h 37m

$111

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 4/16

3:10 pm-12:36 am

1 stop8h 26m

Washington, D.C. Dulles Intl

Sat 4/18

7:05 am-2:15 pm

1 stop8h 10m

$156

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 3/5

10:00 am-4:04 pm

1 stop5h 04m

Washington, D.C. Reagan-National

Mon 3/9

6:00 am-11:48 am

1 stop6h 48m

$190

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Tue 3/10

12:35 pm-3:32 pm

Nonstop1h 57m

Washington, D.C. Reagan-National

Tue 3/17

10:30 am-11:51 am

Nonstop2h 21m

$197

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Wed 4/1

8:30 pm-11:15 pm

Nonstop1h 45m

Washington, D.C. Reagan-National

Wed 4/8

3:40 pm-4:50 pm

Nonstop2h 10m

$197

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Tue 3/10

10:00 am-6:55 pm

1 stop7h 55m

Washington, D.C. Reagan-National

Tue 4/28

4:59 pm-9:36 pm

1 stop5h 37m

$207

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

Tue 3/10

10:30 am-6:10 pm

1 stop6h 40m

Washington, D.C. Reagan-National

Tue 3/17

6:55 pm-8:00 pm

Nonstop2h 05m

$207

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Wed 4/1

8:30 am-11:43 am

Nonstop2h 13m

Washington, D.C. Dulles Intl

Tue 4/7

5:41 pm-11:57 pm

1 stop7h 16m

$269

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 Illinois to Washington, D.C.

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 Washington, D.C.?

The month of August is, on average, the cheapest month to fly to Washington, D.C. from Illinois, with most prices found around $164. If you’re not able to fly to Washington, D.C. in August, then September is your next best option. Flight prices from Illinois to Washington, D.C. during September average around $182.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Illinois is on a Friday. momondo users have found tickets for Friday departures for as low as $339. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Washington, D.C. for around $526.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the morning is the cheapest time of day to fly from Illinois to Washington, D.C. when you can find flight prices for as low as $335. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $776. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $320 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Illinois for as low as $258 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Washington, D.C. 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 Illinois to Washington, D.C. flights?

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

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

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

Best Price Found	$89
Fastest flight time	1h 42m
Direct flights	Every day
Airports in Washington, D.C.	2 airports

The best one-way flight to Washington, D.C. from Illinois in the past 72 hours is $89. The best round-trip flight deal from Illinois to Washington, D.C. found on momondo in the last 72 hours is $145.

The fastest flight from Illinois to Washington, D.C. takes 1h 42m

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

There are 2 airports in Washington, D.C.. From Illinois there are direct flights to Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD).

Search flight deals

When did momondo last update prices for flights from Illinois to Washington, D.C.?
Prices for flights from Illinois to Washington, D.C. refresh daily.
How many operators does momondo search for flights from Illinois to Washington, D.C.?
As of February 2026, there are 7 operators available to choose from for flights from Illinois to Washington, D.C..
How old do you have to be to fly from Illinois to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents required for your trip to Washington, D.C. 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 Washington, D.C.. 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 Illinois to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Washington, D.C. is Airbus A319 (12.00% of total bookings). The next most popular plane models are Boeing 737-800 (11.13%), Boeing 737 MAX 8 (8.67%), and Boeing 737-900 (8.23%).

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

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

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $42	Free Cancellation	Rating 6.3 8,444 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $57	Free Cancellation	Rating 5.7 3,052 reviews	Search Frontier flights
United Airlines	PriceFrom $114	Free Cancellation	Rating 7.4 9,279 reviews	Search United Airlines flights
Delta	PriceFrom $124	Free Cancellation	Rating 7.9 8,180 reviews	Search Delta flights
JetBlue	PriceFrom $141	Free Cancellation	Rating 7.2 2,895 reviews	Search JetBlue flights
American Airlines	PriceFrom $148	Free Cancellation	Rating 7.2 11,271 reviews	Search American Airlines flights
Southwest	PriceFrom $158	Free Cancellation	Rating 8.0 4,280 reviews	Search Southwest flights

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Colonial Beach

Tysons

Silver Spring

Towson

Fredericksburg

Gaithersburg

Rockville

Manassas

Springfield

Fairfax

Linthicum Heights

Bethesda

Glen Burnie

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Illinois.

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

Flights from Illinois to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Illinois to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Washington, D.C. from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Illinois to Washington, D.C. from $60

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Washington, D.C. departing on 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

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

Frontier flights from Illinois to Washington, D.C.

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

momondo Fare Finder

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

See travel insights to Washington, D.C. from

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

What is the cheapest month to fly to Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

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

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

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

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

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

What airlines fly to Washington, D.C.?

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

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

How long does it take to fly to Washington, D.C.?

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Washington, D.C.

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

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

Traveling to a place near Washington, D.C.?

Why use momondo?

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

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

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

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

An easier way to manage your Washington, D.C. 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

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

Fly your favorite airline to Washington, D.C.

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

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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