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Cheap flights from Chicago to Washington, D.C. from £52

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — WAS
30 Jan — 6 Feb1
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 83 days in advance, depart on a Tuesday or Monday 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 31 December 2025.

Wed 31/1207:10ORD - IAD
1 stop13h 01mUnited Airlines
Wed 4/217:17IAD - ORD
Nonstop2h 20mUnited Airlines
Deal found 31/12£367
Tue 30/1219:48ORD - IAD
1 stop24h 27mUnited Airlines
Wed 14/122:20IAD - ORD
1 stop10h 43mUnited Airlines
Deal found 30/12£391
Mon 29/1218:20ORD - BWI
Nonstop2h 06mUnited Airlines
Tue 13/110:05BWI - ORD
Nonstop2h 20mUnited Airlines
Deal found 29/12£396
Wed 31/1207:25ORD - IAD
1 stop12h 50mUnited Airlines
Thu 1/122:17IAD - ORD
1 stop10h 48mUnited Airlines
Deal found 30/12£396
Mon 29/1218:02ORD - BWI
1 stop4h 29mDelta
Tue 13/117:25BWI - ORD
1 stop4h 40mDelta
Deal found 29/12£399
Mon 29/1221:15ORD - IAD
Nonstop2h 00mUnited Airlines
Fri 16/122:20IAD - ORD
1 stop12h 43mUnited Airlines
Deal found 28/12£401
Mon 29/1219:48ORD - IAD
1 stop10h 42mUnited Airlines
Tue 13/108:20IAD - ORD
1 stop9h 48mUnited Airlines
Deal found 29/12£417
Tue 30/1218:20ORD - BWI
Nonstop2h 06mUnited Airlines
Wed 7/117:18BWI - ORD
Nonstop2h 20mUnited Airlines
Deal found 30/12£439
Wed 31/1214:04ORD - IAD
1 stop20h 43mUnited Airlines
Sun 11/122:12IAD - ORD
1 stop10h 52mUnited Airlines
Deal found 30/12£445
Tue 30/1216:25ORD - BWI
1 stop7h 25mSouthwest
Wed 7/115:10BWI - ORD
1 stop7h 40mSouthwest
Deal found 30/12£454
Wed 31/1208:51ORD - IAD
Nonstop1h 54mUnited Airlines
Wed 31/1222:17IAD - ORD
1 stop10h 48mUnited Airlines
Deal found 29/12£457
Mon 29/1218:02ORD - DCA
1 stop3h 48mDelta
Tue 13/112:20DCA - ORD
1 stop5h 24mDelta
Deal found 29/12£471

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 31 December 2025.

Round-trip from

£90

One-way from

£52

Popular in

November

Cheapest in

August

Average price

£179
Frontier
  • Frontier
  • 12/2-19/2
  • 1 total stop
  • 21h 14m total
  • Chicago to Washington, D.C.
Search Deals
United Airlines
  • United Airlines
  • 31/1
  • Nonstop
  • 2h 06m total
  • Chicago to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 31 December 2025.
Use the filters below to find and compare flights from Chicago to Washington, D.C. that are best for you.

Fly from

Chicago

Fly to

Washington, D.C.

Route

Depart

Return

Price

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Fri 20/2

18:15-21:17

Nonstop2h 02m

Baltimore/Washington

Sun 22/2

06:30-07:53

Nonstop2h 23m

£131

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sun 25/1

11:05-14:11

Nonstop2h 06m

Baltimore/Washington

Wed 28/1

10:05-11:25

Nonstop2h 20m

£132

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 14/1

18:15-21:21

Nonstop2h 06m

Baltimore/Washington

Tue 20/1

10:05-11:25

Nonstop2h 20m

£136

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 15/1

11:05-14:11

Nonstop2h 06m

Baltimore/Washington

Tue 20/1

10:05-11:25

Nonstop2h 20m

£136

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 24/1

18:15-21:21

Nonstop2h 06m

Baltimore/Washington

Sun 25/1

17:18-18:38

Nonstop2h 20m

£139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 21/2

17:37-22:53

1 stop4h 16m

Baltimore/Washington

Mon 23/2

17:25-20:44

1 stop4h 19m

£146

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Wed 25/3

10:56-18:38

1 stop6h 42m

Washington, D.C. Reagan-National

Thu 26/3

10:05-17:24

1 stop8h 19m

£146

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 29/1

05:30-11:54

1 stop5h 24m

Baltimore/Washington

Thu 29/1

18:59-23:56

1 stop5h 57m

£146

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sat 7/2

07:45-14:29

1 stop5h 44m

Washington, D.C. Reagan-National

Sun 8/2

10:05-17:43

1 stop8h 38m

£146

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sun 8/2

07:45-14:29

1 stop5h 44m

Washington, D.C. Reagan-National

Tue 10/2

10:05-17:43

1 stop8h 38m

£146

Flights are sorted by cheapest return flights first.

Deals found on 29/12

Showing 1-10 of 60 results
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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 26 December 2025.

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 £43). Flying from Chicago to Washington, D.C. in April is currently the most expensive (average of £125). 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 31 December 2025.

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 57% versus a flight at midday.

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 31 December 2025.

The most flights from CHI to WAS are scheduled on a Monday (68 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 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 20% 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?

Saturday 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, Southwest have had the lowest number of delays on this route, with just 18% 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 £103, 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 - Baltimore/Washington. You may also consider Chicago O'Hare Intl - Washington, D.C. Reagan-National 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 (82%), Avianca (82%), ANA( 70%).

  • 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 £43). Flying from Chicago to Washington, D.C. in April is currently the most expensive (average of £125). 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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Why should you use Cheapflights to find cheap flight tickets from Chicago to Washington, D.C.?

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Can Cheapflights find flights from Chicago to Washington, D.C. with no change fees?

Yes, we can. To see specific flights from Chicago to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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