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Cheap flights from Chicago to Washington, D.C. from £81

CHI — WAS
9 Oct — 16 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago to Washington, D.C. are usually found in September or January, booked 84 days in advance, depart on a Monday or Tuesday and return on a Thursday

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.

Fri 6/1106:00 -
Nonstop1h 57m
Mon 9/1109:53 -
Nonstop2h 30m
Deal found 5/9£106
Fri 6/1106:00 -
Nonstop1h 57m
Sun 8/1109:53 -
Nonstop2h 30m
Deal found 5/9£127
Fri 9/1006:00 -
Nonstop2h 03m
Sun 11/1009:58 -
Nonstop2h 23m
Deal found 7/9£139
Wed 21/1006:00 -
1 stop10h 13m
Wed 28/1008:05 -
1 stop5h 46m
Deal found 9/9£148
Fri 2/1006:20 -
Nonstop2h 05m
Mon 5/1010:20 -
Nonstop2h 20m
Deal found 4/9£151
Wed 14/1006:00 -
1 stop9h 47m
Sat 17/1005:40 -
1 stop6h 52m
Deal found 4/9£153
Wed 21/1006:00 -
1 stop9h 47m
Wed 28/1010:45 -
1 stop8h 31m
Deal found 9/9£155
Wed 14/1006:00 -
1 stop10h 13m
Sat 17/1012:30 -
1 stop12h 59m
Deal found 4/9£155
Sat 10/1006:00 -
1 stop10h 13m
Tue 13/1007:50 -
1 stop11h 41m
Deal found 8/9£156
Thu 22/1006:00 -
Nonstop2h 03m
Thu 29/1009:53 -
Nonstop2h 30m
Deal found 7/9£162
Fri 2/1006:20 -
Nonstop2h 05m
Tue 6/1006:38 -
1 stop6h 13m
Deal found 4/9£164
Fri 9/1006:00 -
Nonstop2h 03m
Mon 12/1021:52 -
1 stop10h 59m
Deal found 8/9£169

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

Round-trip from

£106

One-way from

£81

Popular in

June

Cheapest in

September

Average price

£147
Frontier
  • Frontier
  • 6/11-9/11
  • Nonstop
  • 4h 27m total
  • Chicago to Washington, D.C.
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Frontier
  • Frontier
  • 4/11-31/12
  • 1 total stop
  • 8h 57m total
  • Chicago to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£34 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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

ChicagoBaltimore

ORD Chicago O'Hare Intl - BWI Baltimore/Washington

ORDBWI

Chicago O'Hare Intl

Sat 7/11

18:29-21:42

Nonstop2h 13m

Baltimore/Washington

Wed 31/12

00:00-23:00

Nonstop0h 00m

£111
Fastest return journey

ChicagoWashington, D.C.

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

ORDIAD

Chicago O'Hare Intl

Tue 10/11

06:04-08:58

Nonstop1h 54m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-23:00

Nonstop0h 00m

£111

ChicagoWashington, D.C.

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

ORDIAD

Chicago O'Hare Intl

Mon 5/10

08:50-11:55

Nonstop2h 05m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-23:00

Nonstop0h 00m

£111

ChicagoBaltimore

ORD Chicago O'Hare Intl - BWI Baltimore/Washington

ORDBWI

Chicago O'Hare Intl

Wed 28/10

18:29-21:42

Nonstop2h 13m

Baltimore/Washington

Wed 31/12

00:00-23:00

Nonstop0h 00m

£115

ChicagoWashington, D.C.

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

ORDDCA

Chicago O'Hare Intl

Thu 10/12

05:30-11:39

1 stop5h 09m

Washington, D.C. Reagan-National

Wed 31/12

00:00-23:00

Nonstop0h 00m

£118

ChicagoWashington, D.C.

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

ORDDCA

Chicago O'Hare Intl

Mon 21/12

06:40-12:59

1 stop5h 19m

Washington, D.C. Reagan-National

Wed 31/12

00:00-23:00

Nonstop0h 00m

£118

ChicagoWashington, D.C.

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

ORDDCA

Chicago O'Hare Intl

Tue 29/9

09:30-16:22

1 stop5h 52m

Washington, D.C. Reagan-National

Wed 31/12

00:00-23:00

Nonstop0h 00m

£118

ChicagoWashington, D.C.

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

ORDDCA

Chicago O'Hare Intl

Wed 7/10

15:25-18:33

Nonstop2h 08m

Washington, D.C. Reagan-National

Wed 31/12

00:00-23:00

Nonstop0h 00m

£118

ChicagoWashington, D.C.

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

ORDIAD

Chicago O'Hare Intl

Tue 3/11

10:32-13:35

Nonstop2h 03m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-23:00

Nonstop0h 00m

£118

ChicagoWashington, D.C.

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

ORDIAD

Chicago O'Hare Intl

Wed 18/11

14:21-17:24

Nonstop2h 03m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-23:00

Nonstop0h 00m

£118

Flights are sorted by cheapest return flights first.

Deals found on 8/9

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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

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 £211). Flying from Chicago to Washington, D.C. in June is currently the most expensive (average of £297). 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?

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 51% versus a flight in the afternoon.

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

The most flights from CHI to WAS are scheduled on a Monday (91 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (17 on average).

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

Airfare is below average for this route at the moment.
Chicago to Washington, D.C. flights typically cost between £113 and £204 in November.
The cheapest return price found within the last 5 days was £106 on Frontier (6 Nov–9 Nov).

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 132 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, 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

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

    For as low as £231, United Airlines can have you in Washington, D.C. from Chicago in 2h 06m. Airlines will cover a distance of 620 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 - Washington, D.C. Dulles Intl or Chicago O'Hare Intl - Baltimore/Washington.

  • 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: Egyptair (96%), ITA Airways (91%), Air China( 89%).

  • 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 £211). Flying from Chicago to Washington, D.C. in June is currently the most expensive (average of £297). 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
Alexandria
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Glen Burnie
Springfield

Browse thousands of different options on Cheapflights for your next trip

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When you search for this flight from Chicago to Washington, D.C., Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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