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Cheap flights from Chicago to Washington, D.C. from £74

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 28/7. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — WAS
5 Aug — 12 Aug1
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 Wednesday or Monday and return on a Saturday

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 6 July 2026.

Sat 5/910:50
ORD
-
IAD
Nonstop2h 05m
United Airlines
Mon 7/910:35
IAD
-
ORD
Nonstop2h 18m
United Airlines
Deal found 2/7£177
Wed 9/909:38
ORD
-
DCA
1 stop6h 46m
JetBlue
Sun 13/906:30
DCA
-
ORD
1 stop6h 17m
JetBlue
Deal found 3/7£178
Sat 25/706:00
ORD
-
IAD
1 stop4h 49m
Delta
Sat 25/717:18
IAD
-
ORD
1 stop4h 13m
Delta
Deal found 2/7£178
Thu 27/811:01
ORD
-
DCA
1 stop6h 00m
JetBlue
Sat 19/906:30
DCA
-
ORD
1 stop6h 17m
JetBlue
Deal found 5/7£179
Wed 12/806:30
ORD
-
IAD
Nonstop1h 58m
United Airlines
Fri 14/806:15
IAD
-
ORD
Nonstop2h 15m
United Airlines
Deal found 2/7£182
Thu 20/812:40
ORD
-
DCA
Nonstop2h 02m
United Airlines
Mon 24/814:00
DCA
-
ORD
Nonstop2h 16m
United Airlines
Deal found 3/7£183
Tue 11/810:50
ORD
-
IAD
Nonstop2h 05m
United Airlines
Sat 15/813:10
IAD
-
ORD
Nonstop2h 17m
United Airlines
Deal found 3/7£183
Thu 27/811:01
ORD
-
DCA
1 stop6h 00m
JetBlue
Mon 31/812:59
DCA
-
ORD
1 stop7h 27m
JetBlue
Deal found 6/7£186
Wed 25/1111:10
ORD
-
BWI
1 stop4h 53m
Delta
Tue 1/1218:10
BWI
-
ORD
1 stop6h 40m
Delta
Deal found 2/7£186
Thu 20/811:01
ORD
-
DCA
1 stop7h 04m
JetBlue
Mon 24/813:25
DCA
-
ORD
1 stop7h 02m
JetBlue
Deal found 6/7£186
Tue 4/814:30
ORD
-
BWI
Nonstop2h 06m
United Airlines
Thu 13/817:40
BWI
-
ORD
Nonstop2h 20m
United Airlines
Deal found 3/7£188
Sat 3/1010:49
ORD
-
BWI
Nonstop2h 09m
United Airlines
Sat 3/1017:29
BWI
-
ORD
Nonstop2h 20m
United Airlines
Deal found 2/7£189

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 6 July 2026.

Round-trip from

£177

One-way from

£74

Popular in

June

Cheapest in

August

Average price

£203

Good round-trip deal

£432 or less
United Airlines
  • United Airlines
  • 5/9-7/9
  • Nonstop
  • 4h 23m total
  • Chicago to Washington, D.C.
Search Deals
Delta
  • Delta
  • 28/7
  • 1 total stop
  • 3h 52m total
  • Chicago to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£28 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip 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 6 July 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

Sat 25/7

07:05-11:28

1 stop3h 23m

Washington, D.C. Reagan-National

Sat 25/7

17:29-20:31

1 stop4h 02m

£178

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Wed 26/8

11:01-18:01

1 stop6h 00m

Washington, D.C. Reagan-National

Sun 20/9

06:30-11:47

1 stop6h 17m

£178

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Tue 8/9

10:00-13:04

Nonstop2h 04m

Washington, D.C. Reagan-National

Tue 22/9

14:00-15:16

Nonstop2h 16m

£183
Fastest return journey

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 27/8

07:00-09:59

Nonstop1h 59m

Washington, D.C. Reagan-National

Mon 31/8

08:30-09:45

Nonstop2h 15m

£183

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sat 10/10

11:15-14:23

Nonstop2h 08m

Washington, D.C. Reagan-National

Tue 13/10

06:30-07:44

Nonstop2h 14m

£183

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Wed 26/8

11:01-18:01

1 stop6h 00m

Washington, D.C. Reagan-National

Fri 4/9

14:00-19:26

1 stop6h 26m

£186

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Fri 28/8

11:01-19:05

1 stop7h 04m

Washington, D.C. Reagan-National

Fri 4/9

14:00-19:26

1 stop6h 26m

£186

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Thu 27/8

11:01-18:01

1 stop6h 00m

Washington, D.C. Reagan-National

Mon 31/8

12:59-19:26

1 stop7h 27m

£186

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 1/8

21:20-00:28

Nonstop2h 08m

Baltimore/Washington

Sat 8/8

06:15-07:30

Nonstop2h 15m

£192

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 7/10

07:30-10:39

Nonstop2h 09m

Baltimore/Washington

Sun 11/10

18:51-20:10

Nonstop2h 19m

£197

Flights are sorted by cheapest return flights first.

Deals found on 5/7

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.

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

Currently, October is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of £219). Flying from Chicago to Washington, D.C. in December is currently the most expensive (average of £531). 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 6 July 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 morning, which can drop the price by up to 54% 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 6 July 2026.

The most flights from CHI to WAS are scheduled on a Monday (96 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 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 23% of weekly flights between Chicago and Washington, D.C. have experienced delays in the past year, with the average delay time being 131 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 Friday 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, United Airlines have had the lowest number of delays on this route, with just 21% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from Chicago to Washington, D.C., you should look to book at least 82 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.

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 £183, United Airlines can have you in Washington, D.C. from Chicago in 2h 04m. Airlines will cover a distance of 610 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: Sun Country Air (100%), Egyptair (100%), Avianca( 95%).

  • 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, October is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of £219). Flying from Chicago to Washington, D.C. in December is currently the most expensive (average of £531). 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
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Alexandria

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