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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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — WAS
11 Jan — 18 Jan1
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 12 December 2025.

Thu 25/1218:20ORD - BWI
Nonstop2h 06mUnited Airlines
Thu 19/206:30BWI - ORD
Nonstop2h 23mUnited Airlines
Deal found 11/12£104
Thu 25/1218:20ORD - BWI
Nonstop2h 06mUnited Airlines
Tue 6/117:18BWI - ORD
Nonstop2h 20mUnited Airlines
Deal found 10/12£111
Thu 25/1207:00ORD - BWI
1 stop3h 49mDelta
Thu 1/106:00BWI - ORD
1 stop4h 01mDelta
Deal found 10/12£132
Wed 31/1218:02ORD - BWI
1 stop4h 29mDelta
Tue 6/111:24BWI - ORD
1 stop6h 20mDelta
Deal found 11/12£133
Wed 24/1218:02ORD - BWI
1 stop4h 29mDelta
Fri 20/211:45BWI - ORD
1 stop5h 56mDelta
Deal found 11/12£140
Wed 24/1218:20ORD - BWI
Nonstop2h 06mUnited Airlines
Wed 31/1206:15BWI - ORD
Nonstop2h 20mUnited Airlines
Deal found 10/12£141
Wed 24/1206:05ORD - BWI
1 stop6h 30mSouthwest
Wed 31/1215:55BWI - ORD
1 stop6h 55mSouthwest
Deal found 10/12£145
Wed 24/1218:20ORD - BWI
Nonstop2h 06mUnited Airlines
Thu 1/106:15BWI - ORD
Nonstop2h 20mUnited Airlines
Deal found 11/12£148
Thu 25/1218:20ORD - BWI
Nonstop2h 06mUnited Airlines
Thu 1/106:15BWI - ORD
Nonstop2h 20mUnited Airlines
Deal found 10/12£156
Wed 24/1218:02ORD - BWI
1 stop4h 29mDelta
Thu 1/106:00BWI - ORD
1 stop4h 01mDelta
Deal found 9/12£163
Wed 24/1207:00ORD - DCA
Nonstop1h 59mUnited Airlines
Wed 31/1217:00DCA - ORD
Nonstop2h 19mUnited Airlines
Deal found 10/12£167
Wed 24/1221:15ORD - IAD
Nonstop2h 00mUnited Airlines
Wed 31/1206:30IAD - ORD
Nonstop2h 17mUnited Airlines
Deal found 10/12£167

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 12 December 2025.

Round-trip from

£104

One-way from

£52

Popular in

November

Cheapest in

August

Average price

£173
United Airlines
  • United Airlines
  • 10/1-14/1
  • Nonstop
  • 4h 26m total
  • Chicago to Washington, D.C.
Search Deals
United Airlines
  • United Airlines
  • 25/12
  • Nonstop
  • 2h 06m total
  • Chicago to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£14 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 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 12 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

Sat 10/1

18:15-21:21

Nonstop2h 06m

Baltimore/Washington

Wed 14/1

17:18-18:38

Nonstop2h 20m

£104

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 7/1

18:15-21:21

Nonstop2h 06m

Baltimore/Washington

Wed 18/2

10:30-11:53

Nonstop2h 23m

£111

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 6/1

11:05-14:11

Nonstop2h 06m

Baltimore/Washington

Sat 10/1

17:18-18:38

Nonstop2h 20m

£111

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 17/1

11:05-14:11

Nonstop2h 06m

Baltimore/Washington

Mon 19/1

17:18-18:38

Nonstop2h 20m

£111

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 31/12

18:02-23:31

1 stop4h 29m

Baltimore/Washington

Wed 18/2

06:00-09:41

1 stop4h 41m

£132

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 31/12

18:02-23:31

1 stop4h 29m

Baltimore/Washington

Tue 17/2

11:45-16:41

1 stop5h 56m

£132

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Fri 9/1

18:15-21:21

Nonstop2h 06m

Baltimore/Washington

Fri 16/1

17:18-18:38

Nonstop2h 20m

£132

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 31/12

18:02-23:31

1 stop4h 29m

Baltimore/Washington

Fri 20/2

14:58-21:41

1 stop7h 43m

£140

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 24/12

18:02-23:31

1 stop4h 29m

Baltimore/Washington

Fri 20/2

11:45-16:41

1 stop5h 56m

£140

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Fri 16/1

06:15-13:53

1 stop6h 38m

Baltimore/Washington

Mon 19/1

06:00-09:41

1 stop4h 41m

£140

Flights are sorted by cheapest return flights first.

Deals found on 11/12

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 5 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 £126). 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 12 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 55% 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 12 December 2025.

The most flights from CHI to WAS are scheduled on a Thursday (80 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 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 £104, 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 - 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: ITA Airways (89%), Avianca (89%), Air China( 88%).

  • 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 £126). 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.

Can Cheapflights notify me if prices for flights from Chicago to Washington, D.C. become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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