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Cheap flights from Chicago to Washington, D.C. from £61

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — WAS
12 Apr — 19 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago to Washington, D.C. are usually found in August or September, booked 84 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from Chicago to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Chicago to Washington, D.C.
Explore the most affordable flight options available from Chicago to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 March 2026.

Tue 14/411:07
ORD
-
BWI
1 stop12h 37m
Frontier
Sat 18/417:53
BWI
-
ORD
1 stop5h 46m
Frontier
Deal found 9/3£111
Fri 17/416:38
ORD
-
BWI
1 stop20h 28m
Frontier
Sun 19/419:54
BWI
-
ORD
1 stop23h 56m
Frontier
Deal found 9/3£125
Fri 17/416:38
ORD
-
BWI
1 stop20h 28m
Frontier
Sat 18/417:53
BWI
-
ORD
1 stop5h 46m
Frontier
Deal found 9/3£126
Tue 14/418:10
ORD
-
BWI
2 stops16h 09m
Multiple Airlines
Sat 18/417:53
BWI
-
ORD
1 stop5h 46m
Multiple Airlines
Deal found 9/3£138
Sun 26/411:28
ORD
-
BWI
1 stop19h 34m
Multiple Airlines
Sun 3/519:52
BWI
-
ORD
1 stop17h 20m
Multiple Airlines
Deal found 11/3£147
Fri 10/418:15
ORD
-
BWI
Nonstop2h 08m
United Airlines
Sat 11/419:05
BWI
-
ORD
Nonstop2h 21m
United Airlines
Deal found 8/3£150
Sat 23/518:20
ORD
-
BWI
Nonstop2h 06m
United Airlines
Tue 26/510:44
BWI
-
ORD
Nonstop2h 16m
United Airlines
Deal found 8/3£153
Tue 7/418:15
ORD
-
BWI
Nonstop2h 08m
United Airlines
Tue 14/415:42
BWI
-
ORD
Nonstop2h 18m
United Airlines
Deal found 10/3£156
Wed 8/416:00
ORD
-
DCA
Nonstop2h 13m
United Airlines
Wed 15/411:55
DCA
-
ORD
Nonstop2h 20m
United Airlines
Deal found 9/3£156
Wed 8/418:01
ORD
-
IAD
Nonstop2h 03m
United Airlines
Wed 15/408:20
IAD
-
ORD
Nonstop2h 18m
United Airlines
Deal found 9/3£156
Sat 23/518:20
ORD
-
BWI
Nonstop2h 06m
United Airlines
Sat 30/506:50
BWI
-
ORD
Nonstop2h 15m
United Airlines
Deal found 8/3£162
Thu 30/405:15
ORD
-
BWI
1 stop4h 31m
Delta
Tue 5/506:03
BWI
-
ORD
1 stop5h 16m
Delta
Deal found 8/3£162

Find flight deals from Chicago to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 March 2026.

Round-trip from

£111

One-way from

£61

Popular in

November

Cheapest in

August

Average price

£223

Good one-way deal

£100 or less
Frontier
  • Frontier
  • 14/4-18/4
  • 2 total stops
  • 18h 23m total
  • Chicago to Washington, D.C.
Search Deals
United Airlines
  • United Airlines
  • 18/4
  • Nonstop
  • 2h 03m total
  • Chicago to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£11 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chicago to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 March 2026.
Use the filters below to find and compare flights from Chicago to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 14/5

15:05-22:50

1 stop6h 45m

Washington, D.C. Reagan-National

Sat 16/5

15:55-21:55

1 stop7h 00m

£168

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Tue 2/6

21:40-00:45

Nonstop2h 05m

Washington, D.C. Dulles Intl

Mon 8/6

17:38-18:50

Nonstop2h 12m

£168

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sat 18/4

13:55-20:55

1 stop6h 00m

Washington, D.C. Reagan-National

Wed 22/4

13:00-18:25

1 stop6h 25m

£168

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 23/4

14:30-17:33

Nonstop2h 03m

Baltimore/Washington

Tue 28/4

06:00-07:21

Nonstop2h 21m

£170

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 2/4

13:00-16:03

Nonstop2h 03m

Washington, D.C. Dulles Intl

Mon 6/4

22:30-23:43

Nonstop2h 13m

£179

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Tue 14/4

11:55-20:50

1 stop7h 55m

Washington, D.C. Reagan-National

Sat 18/4

06:00-13:10

1 stop8h 10m

£185

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Tue 14/4

19:45-22:48

Nonstop2h 03m

Washington, D.C. Reagan-National

Fri 17/4

06:15-07:31

Nonstop2h 16m

£194

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Wed 22/4

14:40-21:55

1 stop6h 15m

Washington, D.C. Reagan-National

Wed 29/4

09:05-12:50

1 stop4h 45m

£198

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 9/4

14:25-17:28

Nonstop2h 03m

Washington, D.C. Dulles Intl

Mon 13/4

22:30-23:43

Nonstop2h 13m

£198

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Tue 2/6

11:07-16:31

1 stop4h 24m

Washington, D.C. Dulles Intl

Mon 8/6

06:00-10:04

1 stop5h 04m

£200

Flights are sorted by cheapest return flights first.

Deals found on 10/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Chicago to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Chicago with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Washington, D.C.

How far ahead should I book a flight from Chicago to Washington, D.C.?

Use this chart to determine the optimal time to book a return flight from Chicago to Washington, D.C.. Price data was last updated on 6 March 2026.

To ensure you get the cheapest price possible for a flight from Chicago to Washington, D.C., you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Chicago to Washington, D.C.?

Currently, February is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of £42). Flying from Chicago to Washington, D.C. in April is currently the most expensive (average of £119). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to WAS?

Find hourly flight availability from Chicago to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 March 2026.

When flying from Chicago to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 37% versus a flight in the afternoon.

Weekly flight availability from Chicago to Washington, D.C.

Explore weekly flight availability from Chicago to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 March 2026.

The most flights from CHI to WAS are scheduled on a Thursday (82 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

How much does it cost for a return flight from Chicago to Washington, D.C.?

How often are flights from Chicago to Washington, D.C. delayed?

About 22% of weekly flights between Chicago and Washington, D.C. have experienced delays in the past year, with the average delay time being 128 minutes.

What is the most punctual flight time for Chicago to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Chicago to Washington, D.C. flights?

Over the past year, Southwest have had the lowest number of delays on this route, with just 20% of flights being delayed.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as £168, Southwest can have you in Washington, D.C. from Chicago in 2h 05m. Airlines will cover a distance of 587 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Chicago to Washington, D.C.?

    The most popular route from Chicago to Washington, D.C. is Chicago O'Hare Intl - Washington, D.C. Reagan-National. You may also consider Chicago O'Hare Intl - Baltimore/Washington or Chicago O'Hare Intl - Washington, D.C. Dulles Intl.

  • What are the most reliable airlines from Chicago to Washington, D.C.?

    Before booking your flight to Washington, D.C. from Chicago, check out the most reliable airlines to get you to your destination on time: Air China (94%), Ethiopian Air (83%), Avianca( 80%).

  • Can I find deals for flights from Chicago to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Chicago to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Washington, D.C..

  • Can I find deals for business class flights from Chicago to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Chicago to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of £42). Flying from Chicago to Washington, D.C. in April is currently the most expensive (average of £119). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park

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