Washington, D.C.

$63+ Cheap flights from Chicago (CHI) to Washington, D.C. (WAS)

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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — WAS
Jan 11 — Jan 181
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Find cheap flights from Chicago to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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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 Friday or Thursday and return on a Friday

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

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 December 12, 2025.

This Southwest deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:55 pmMDW - BWI
Nonstop1h 45mSouthwest
Thu 1/112:40 pmBWI - MDW
Nonstop2h 05mSouthwest
Deal found 12/9$139
This Frontier deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:35 amORD - BWI
Nonstop2h 07mFrontier
Thu 2/197:10 pmBWI - ORD
Nonstop2h 27mFrontier
Deal found 12/11$139
This Frontier deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:35 amORD - BWI
Nonstop2h 07mFrontier
Fri 2/610:00 amBWI - ORD
Nonstop2h 27mFrontier
Deal found 12/11$143
This Super.com deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:35 amORD - BWI
Nonstop2h 07mFrontier
Fri 1/211:06 amBWI - ORD
Nonstop2h 18mFrontier
Deal found 12/9$147
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:20 pmORD - BWI
Nonstop2h 06mUnited Airlines
Tue 1/65:18 pmBWI - ORD
Nonstop2h 20mUnited Airlines
Deal found 12/10$149
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:09 pmORD - BWI
1 stop10h 40mMultiple Airlines
Thu 2/197:10 pmBWI - ORD
Nonstop2h 27mMultiple Airlines
Deal found 12/11$153
This Kiwi.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:35 amORD - BWI
Nonstop2h 07mFrontier
Fri 1/211:06 amBWI - ORD
Nonstop2h 18mFrontier
Deal found 12/10$159
This Frontier deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:50 amORD - BWI
1 stop8h 51mFrontier
Thu 2/197:10 pmBWI - ORD
Nonstop2h 27mFrontier
Deal found 12/11$161
This Expedia deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:10 amORD - BWI
1 stop10h 45mSpirit Airlines
Mon 12/158:45 amBWI - ORD
1 stop12h 16mSpirit Airlines
Deal found 12/10$163
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:50 amORD - BWI
1 stop8h 51mFrontier
Mon 2/912:40 pmBWI - ORD
Nonstop2h 27mFrontier
Deal found 12/11$168
This Frontier deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/291:44 pmORD - BWI
Nonstop2h 07mFrontier
Mon 2/912:40 pmBWI - ORD
Nonstop2h 27mFrontier
Deal found 12/11$169
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:50 amORD - BWI
1 stop8h 51mFrontier
Sun 2/89:20 amBWI - ORD
Nonstop2h 27mFrontier
Deal found 12/11$172

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 December 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$88
(Kiwi.com)

One-way from

$63
(Kiwi.com)

Popular in

November

Cheapest in

August

Average price

$232

Good round-trip deal

$150 or less

Good one-way deal

$93 or less
Provider with most accurate pricing for Chicago (CHI)-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for Chicago (CHI)-Washington, D.C. (WAS) flights.
From Chicago (CHI) to Washington, D.C. (WAS)
One-way flight from Chicago (CHI) to Washington, D.C. (WAS)
Highest demand for flights based on searches. 9% potential increase in price ($25 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from Chicago (CHI) to Washington, D.C. (WAS).
Price to beat on a one-way flight from Chicago (CHI) to Washington, D.C. (WAS).

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 12, 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

MDW - BWI

MDWBWI

Chicago Midway

Thu 1/8

5:15 pm-8:10 pm

Nonstop1h 55m

Baltimore/Washington

Mon 1/12

1:45 pm-2:55 pm

Nonstop2h 10m

$139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 1/24

6:15 pm-9:21 pm

Nonstop2h 06m

Baltimore/Washington

Mon 1/26

10:05 am-11:25 am

Nonstop2h 20m

$139

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Thu 1/22

1:15 pm-4:00 pm

Nonstop1h 45m

Baltimore/Washington

Thu 1/29

10:25 am-11:35 am

Nonstop2h 10m

$139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 2/21

6:25 pm-9:27 pm

Nonstop2h 02m

Baltimore/Washington

Tue 2/24

10:30 am-11:53 am

Nonstop2h 23m

$139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 1/10

6:15 pm-9:21 pm

Nonstop2h 06m

Baltimore/Washington

Wed 1/14

5:18 pm-6:38 pm

Nonstop2h 20m

$139

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Tue 1/6

1:15 pm-4:00 pm

Nonstop1h 45m

Baltimore/Washington

Sat 1/10

5:50 pm-7:00 pm

Nonstop2h 10m

$149

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Wed 1/7

1:15 pm-4:00 pm

Nonstop1h 45m

Baltimore/Washington

Wed 2/18

7:45 am-9:05 am

Nonstop2h 20m

$149

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 1/6

6:15 pm-9:21 pm

Nonstop2h 06m

Baltimore/Washington

Sat 1/10

10:05 am-11:25 am

Nonstop2h 20m

$149

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 1/17

11:05 am-2:11 pm

Nonstop2h 06m

Baltimore/Washington

Mon 1/19

5:18 pm-6:38 pm

Nonstop2h 20m

$149

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Thu 2/26

4:55 pm-7:45 pm

Nonstop1h 50m

Baltimore/Washington

Sun 3/1

9:05 am-10:20 am

Nonstop2h 15m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 60 results
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Compare providers for flights from Chicago to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Washington, D.C. in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Washington, D.C. flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Chicago-Washington, D.C. flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Chicago-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Washington, D.C. flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Chicago to Washington, D.C.. Price data was last updated on December 5, 2025.

The price you pay for your flight from Chicago to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $58). Flying from Chicago to Washington, D.C. in April is currently the most expensive (average of $169). 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 December 12, 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 morning, which can drop the price by up to 24% versus a flight in the afternoon.

What is the cheapest day to fly from Chicago to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Washington, D.C.. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their Chicago to Washington, D.C. flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 12, 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 to fly round-trip 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 last year, Southwest have had the lowest number of delays on this route, with just 18% of flights being delayed.

The best insider tips for Chicago to Washington, D.C. flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to Washington, D.C. trip
Airlines
British Airways

BA offers complimentary hot meals and beverages in economy, enhancing short-haul comfort.


BA's Executive Club offers free seat selection for mid-tier status, even on economy fares.

United Airlines

United's Economy Plus offers extra legroom, ideal for added comfort on short flights.


United's MileagePlus allows pooling miles, useful for family travel.

Airports
ORD

Prepare for long walks between terminals at ORD. Check your airline's terminal in advance to save time navigating this busy airport.

DCA

DCA is easily accessible via the Metro, offering a convenient and affordable way to reach downtown D.C. from the airport.

IAD

The Silver Line Metro now connects IAD to D.C., making it a cost-effective option for reaching the city.

Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD and IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Emily Zemler

Emily Zemler

Expert on DCA

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated December 12, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Chicago to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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.?

    There are many flights that can get you from Chicago to Washington, D.C. in 1h 55m. Fly via Southwest, United Airlines, or Frontier to get the fastest option. There are 609 mi between Chicago and Washington, D.C.. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Chicago to Washington, D.C. round-trip?

    Flying on Frontier is currently your cheapest option to Washington, D.C., with prices starting at $85. Additional round-trip tickets that might be worth considering are offered by Delta and JetBlue, with the lowest prices starting at $124 and $152, respectively. These flights start at 63% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Chicago to Washington, D.C. one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $49. However, be on the lookout for offers from American Airlines and Southwest, as they are both options that can get you from Chicago to Washington, D.C. for a low price.

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

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to Washington, D.C. on time: ITA Airways (89%), Avianca (89%), Air China (88%).

  • What are the cheapest flights from Chicago to Washington, D.C.?

    The cheapest flight price from Chicago to Washington, D.C. is $134. On average you can expect to pay $913. The most popular route, (Chicago O'Hare Intl - Baltimore/Washington), can usually be booked for $63.

  • 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 vacation 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 $58). Flying from Chicago to Washington, D.C. in April is currently the most expensive (average of $169). 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

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Rockville
Laurel
Towson
National Harbor
Bowie
Largo
McLean
Clinton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Chicago to Washington, D.C.

Discover the top 7 airlines that operate flights from Chicago to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$147FlexibilityNo cancel feeOn-time65%
FrontierCheapest$58Average$189FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$143Average$311FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$148Average$277FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$152Average$268FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$157Average$284FlexibilityNo cancel feeOn-time63%
DeltaCheapest$166Average$209FlexibilityNo cancel feeOn-timeN/A

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