Washington, D.C.

$64+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — WAS
juin 17 — juin 241
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Cheapflights Tip: The best prices from Chicago to Washington, D.C. are usually found in September or August, booked 67 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap 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 juin 12, 2025.

Round-trip from

$108
(CheapOair)

One-way from

$64
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$234

Good round-trip deal

$155 or less

Good one-way deal

$80 or less
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. 3% potential increase in price ($9 potential increase over avg. RT price).
Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
Average for round-trip flights in June 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).

Find 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 juin 12, 2025.

This CheapOair deal was found by Cheapflights users on 6/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 7/92:48 pmMDW - BWI
Nonstop1h 58mFrontier
lun. 7/144:32 pmBWI - MDW
Nonstop2h 04mFrontier
Deal found 6/10$108
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 7/314:37 pmORD - BWI
Nonstop1h 54mSpirit Airlines
dim. 8/38:26 pmBWI - ORD
Nonstop2h 23mSpirit Airlines
Deal found 6/10$110
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 8/291:15 pmORD - BWI
Nonstop2h 06mFrontier
dim. 8/315:06 pmBWI - ORD
Nonstop2h 22mFrontier
Deal found 6/12$115
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 7/104:37 pmORD - BWI
Nonstop1h 54mMultiple Airlines
lun. 7/1411:36 amBWI - ORD
Nonstop2h 22mMultiple Airlines
Deal found 6/11$126
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/611:45 amMDW - BWI
Nonstop1h 50mSouthwest
mar. 8/121:25 pmBWI - MDW
Nonstop1h 55mSouthwest
Deal found 6/10$139
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mer. 8/67:00 amORD - BWI
Nonstop2h 03mUnited Airlines
mer. 8/1310:59 amBWI - ORD
Nonstop2h 15mUnited Airlines
Deal found 6/10$139
This United Airlines deal was found by Cheapflights users on 6/10. 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.
jeu. 8/148:00 amORD - DCA
Nonstop1h 56mUnited Airlines
lun. 8/1810:30 amDCA - ORD
Nonstop2h 19mUnited Airlines
Deal found 6/10$157
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/63:25 pmMDW - DCA
Nonstop1h 50mSouthwest
mer. 8/1311:55 amDCA - MDW
Nonstop1h 55mSouthwest
Deal found 6/11$157
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 8/149:31 pmORD - IAD
Nonstop1h 59mUnited Airlines
lun. 8/1810:19 pmIAD - ORD
Nonstop2h 11mUnited Airlines
Deal found 6/11$157
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 7/21:50 pmORD - BWI
Nonstop2h 00mSouthwest
ven. 7/411:55 amBWI - ORD
Nonstop2h 10mSouthwest
Deal found 6/10$159
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/158:02 amORD - DCA
1 stop3h 57mAmerican Airlines
mar. 7/152:35 pmDCA - ORD
Nonstop2h 17mAmerican Airlines
Deal found 6/12$167
This CheapOair deal was found by Cheapflights users on 6/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/205:45 pmORD - IAD
1 stop5h 10mFrontier
jeu. 9/258:06 pmIAD - ORD
1 stop17h 51mFrontier
Deal found 6/10$171

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 juin 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

mer. 7/9

2:48 pm-5:46 pm

Nonstop1h 58m

Baltimore/Washington

lun. 7/14

4:32 pm-5:36 pm

Nonstop2h 04m

$108

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

jeu. 7/31

4:37 pm-7:31 pm

Nonstop1h 54m

Baltimore/Washington

dim. 8/3

8:26 pm-9:49 pm

Nonstop2h 23m

$110

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

ven. 8/29

1:15 pm-4:21 pm

Nonstop2h 06m

Baltimore/Washington

dim. 8/31

5:06 pm-6:28 pm

Nonstop2h 22m

$115

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

jeu. 7/10

4:37 pm-7:31 pm

Nonstop1h 54m

Baltimore/Washington

lun. 7/14

11:36 am-12:58 pm

Nonstop2h 22m

$126

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

mer. 8/6

11:45 am-2:35 pm

Nonstop1h 50m

Baltimore/Washington

mar. 8/12

1:25 pm-2:20 pm

Nonstop1h 55m

$139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

mer. 8/6

7:00 am-10:03 am

Nonstop2h 03m

Baltimore/Washington

mer. 8/13

10:59 am-12:14 pm

Nonstop2h 15m

$139

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

jeu. 8/14

8:00 am-10:56 am

Nonstop1h 56m

Washington, D.C. Reagan-National

lun. 8/18

10:30 am-11:49 am

Nonstop2h 19m

$157

ChicagoWashington, D.C.

MDW - DCA

MDWDCA

Chicago Midway

mer. 8/6

3:25 pm-6:15 pm

Nonstop1h 50m

Washington, D.C. Reagan-National

mer. 8/13

11:55 am-12:50 pm

Nonstop1h 55m

$157

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

jeu. 8/14

9:31 pm-12:30 am

Nonstop1h 59m

Washington, D.C. Dulles Intl

lun. 8/18

10:19 pm-11:30 pm

Nonstop2h 11m

$157

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

mar. 7/8

1:50 pm-4:50 pm

Nonstop2h 00m

Baltimore/Washington

mar. 7/15

10:35 am-11:50 am

Nonstop2h 15m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 results
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The best insider tips for Chicago to Washington, D.C. flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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.

Read more about ORDby Ramsey Qubein
DCA

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

Read more about DCAby Emily Zemler
IAD

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

Read more about IADby Ramsey Qubein
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

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 June 9, 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 67 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, August is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of $241). Flying from Chicago to Washington, D.C. in March is currently the most expensive (average of $290). 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 juin 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 53% versus a flight at noon.

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 June 8, 2025.

Travelers seeking maximum savings on their Chicago to Washington, D.C. flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday at noon 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 juin 12, 2025.

The most flights from CHI to WAS are scheduled on a Monday (86 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 juin 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Chicago to Washington, D.C. by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.
  • 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 $108. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Southwest, with the lowest prices starting at $110 and $139, respectively. These flights start at 52% 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 Spirit Airlines, with whom users have recently found tickets for as low as $64. However, be on the lookout for offers from Frontier 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: Republic Airways (100%), United Airlines (87%), Air New Zealand (81%).

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

    The cheapest flight price from Chicago to Washington, D.C. is $46. On average you can expect to pay $275. The most popular route, (Chicago O'Hare Intl - Washington, D.C. Dulles Intl), can usually be booked for $157.

  • 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, August is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of $241). Flying from Chicago to Washington, D.C. in March is currently the most expensive (average of $290). 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
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Linthicum Heights
Fredericksburg
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Dundalk

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Top 6 airlines flying from Chicago to Washington, D.C.

Discover the top 6 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 juin 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$38Average$174FlexibilityNo cancel feeOn-time65%
FrontierCheapest$54Average$170FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$123Average$271FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$142Average$288FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$154Average$296FlexibilityNo cancel feeOn-time69%
DeltaCheapest$166Average$283FlexibilityNo cancel feeOn-timeN/A

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