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Cheap flights from Chicago to Washington, D.C. from $40

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Washington, D.C. departing on 9/28. 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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Find the cheapest flights from Chicago to Washington, D.C.

Cheap round-trip flights

Frontier Logo
6:11 pm - 9:14 pmORD-BWI
2h 03mnonstop
Frontier Logo
9:59 pm - 11:20 pmBWI-ORD
2h 21mnonstop
$73Frontier
Find Deal
Thu, Sep 11 - Mon, Sep 15
Spirit Airlines Logo
6:10 am - 9:02 amORD-BWI
1h 52mnonstop
Spirit Airlines Logo
9:57 am - 11:10 amBWI-ORD
2h 13mnonstop
$82Spirit Airlines
Find Deal
Thu, Sep 11 - Sun, Sep 14
United Airlines Logo
11:15 am - 2:16 pmORD-DCA
2h 01mnonstop
United Airlines Logo
6:00 pm - 7:15 pmDCA-ORD
2h 15mnonstop
$93United Airlines
Find Deal
Wed, Sep 10 - Sat, Sep 20
United Airlines Logo
9:31 pm - 12:32 amORD-IAD
2h 01mnonstop
United Airlines Logo
6:35 am - 7:46 amIAD-ORD
2h 11mnonstop
$93United Airlines
Find Deal
Wed, Sep 10 - Sat, Sep 20
Southwest Logo
5:30 am - 8:20 amMDW-DCA
1h 50mnonstop
Southwest Logo
6:00 am - 6:55 amDCA-MDW
1h 55mnonstop
$93Southwest
Find Deal
Thu, Aug 7 - Thu, Aug 14
American Airlines Logo
1:20 pm - 4:16 pmORD-DCA
1h 56mnonstop
American Airlines Logo
3:50 pm - 5:11 pmDCA-ORD
2h 21mnonstop
$94American Airlines
Find Deal
Sat, Aug 9 - Mon, Aug 11
 Logo
6:20 am - 9:09 amORD-BWI
1h 49mnonstop
 Logo
11:36 am - 12:58 pmBWI-ORD
2h 22mnonstop
Thu, Aug 14 - Mon, Aug 18
 Logo
4:37 pm - 7:31 pmORD-BWI
1h 54mnonstop
 Logo
11:36 am - 12:58 pmBWI-ORD
2h 22mnonstop
Thu, Jul 31 - Mon, Aug 4
Southwest Logo
12:15 pm - 3:10 pmMDW-DCA
1h 55mnonstop
Southwest Logo
3:10 pm - 7:20 pmDCA-MDW
5h 10m1 stop
$103Southwest
Find Deal
Tue, Aug 12 - Tue, Aug 19
American Airlines Logo
3:32 pm - 6:27 pmORD-DCA
1h 55mnonstop
American Airlines Logo
10:09 pm - 11:25 pmDCA-ORD
2h 16mnonstop
$106American Airlines
Find Deal
Fri, Aug 29 - Mon, Sep 1

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

Our best United Airlines deals on Chicago to Washington, D.C. flight tickets
United Airlines
Sep 10
ORD9:31 pmChicago O'Hare Intl
2h 01m
IAD12:32 amWashington, D.C. Dulles Intl
Sep 20
IAD6:35 amWashington, D.C. Dulles Intl
2h 11m
ORD7:46 amChicago O'Hare Intl
United Airlines
Aug 15
ORD8:52 amChicago O'Hare Intl
2h 03m
IAD11:55 amWashington, D.C. Dulles Intl
Aug 16
IAD6:35 amWashington, D.C. Dulles Intl
2h 14m
ORD7:49 amChicago O'Hare Intl
United Airlines
Aug 6
ORD8:52 amChicago O'Hare Intl
2h 03m
IAD11:55 amWashington, D.C. Dulles Intl
Aug 13
IAD3:39 pmWashington, D.C. Dulles Intl
2h 13m
ORD4:52 pmChicago O'Hare Intl

Frontier flights from Chicago to Washington, D.C.

Our best Frontier deals on Chicago to Washington, D.C. flight tickets
Frontier
Sep 11
ORD6:11 pmChicago O'Hare Intl
2h 03m
BWI9:14 pmBaltimore/Washington
Sep 15
BWI9:59 pmBaltimore/Washington
2h 21m
ORD11:20 pmChicago O'Hare Intl
Frontier
Aug 6
MDW2:48 pmChicago Midway
1h 58m
BWI5:46 pmBaltimore/Washington
Aug 13
BWI6:31 pmBaltimore/Washington
2h 05m
MDW7:36 pmChicago Midway
Frontier
Aug 29
ORD1:15 pmChicago O'Hare Intl
2h 06m
BWI4:21 pmBaltimore/Washington
Aug 31
BWI5:06 pmBaltimore/Washington
2h 22m
ORD6:28 pmChicago O'Hare Intl

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Chicago 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

What is the typical price of a round-trip flight between Chicago and Washington, D.C.?

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

The month of September is, on average, the cheapest month to fly to Washington, D.C. from Chicago, with most prices found around $199. If you’re not able to fly to Washington, D.C. in September, then August is your next best option. Flight prices from Chicago to Washington, D.C. during August average around $203.

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 Chicago is on a Friday. momondo users have found tickets for Friday departures for as low as $299. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to Washington, D.C. for around $448.

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 Chicago to Washington, D.C. when you can find flight prices for as low as $301. 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 $640. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from Chicago O'Hare Intl to Baltimore/Washington for the best Chicago - 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 Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $310 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 Chicago for as low as $240 on momondo.

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

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

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

How have Chicago to Washington, D.C. flight prices changed over time?

As of July 2025, prices for Chicago to Washington, D.C. flights are approximately 59% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Washington, D.C. (CHI to WAS) flight deals and tips

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

Best Price Found

$40

Fastest flight time

1h 40m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Chicago in the past 72 hours is $40. The best round-trip flight deal from Chicago to Washington, D.C. found on momondo in the last 72 hours is $73.
The fastest flight from Chicago to Washington, D.C. takes 1h 40m
Direct flights go from Chicago to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

  • Is flying the fastest way to get from Chicago to Washington, D.C.?

    Based on just travel duration our users have found a flight from Chicago to Washington, D.C. to be the fastest option to their destination at just 1h 40m. If travel time is less of a concern you may want to look into booking some alternative forms of transportation like a train from Chicago to Washington, D.C. or a bus from Chicago to Washington, D.C..

  • Is flying the cheapest way to get from Chicago to Washington, D.C.?

    A flight from Chicago to Washington, D.C. is currently going to be the least expensive option currently available. You can also find deals for a train from Chicago to Washington, D.C. starting at $244, or consider a bus from Chicago to Washington, D.C. starting at $134. Both of these alternative options are worth considering when looking to reach your destination.

  • How far is Chicago to Washington, D.C. by plane?

    Chicago and Washington, D.C. are 593.1 mi apart from one another. 1h 40m is a normal flight duration for this route.

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

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

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

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

    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 Chicago 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 Chicago to Washington, D.C.?

  • What is the most popular airline from Chicago to Washington, D.C.?


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

Compare and see reviews for airlines that fly from Chicago to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $46Free CancellationRating
6.3
8,059 reviews
Search Spirit Airlines flights
FrontierPriceFrom $59Free CancellationRating
5.9
3,271 reviews
Search Frontier flights
SouthwestPriceFrom $139Free CancellationRating
8.0
4,252 reviews
Search Southwest flights
American AirlinesPriceFrom $148Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $150Free CancellationRating
7.4
8,842 reviews
Search United Airlines flights
DeltaPriceFrom $166Free CancellationRating
8.0
7,954 reviews
Search Delta flights
  • Southwest Flights From Chicago to Washington, D.C.

    Southwest is one of the most popular airlines flying from Chicago to Washington, D.C., operating 30 flights/week on average for this route. A good Southwest flight deal for Chicago to Washington, D.C. starts from $139 round-trip, up to an average price of $285. Our users have rated Southwest at 8.0/10.

  • United Airlines Flights From Chicago to Washington, D.C.

    $150 is the best United Airlines flight deal from Chicago to Washington, D.C. found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $298, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 8,843 user reviews) flies into Washington, D.C. from Chicago 95 times in an average week so prices can vary.


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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Laurel
Woodbridge
Tysons
Silver Spring
Waldorf
Fredericksburg
Manassas
Gaithersburg
Rockville
Towson
Fairfax
Colonial Beach
Glen Burnie
Linthicum Heights
Reston
Springfield

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Washington, D.C. from Chicago which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Chicago and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Washington, D.C. from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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1 adult
Mon 7/14
Mon 7/21

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.