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 45m. Fly via Southwest, United Airlines, or Delta 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 JetBlue is currently your cheapest option to Washington, D.C., with prices starting at $141. Additional round-trip tickets that might be worth considering are offered by Frontier and American Airlines, with the lowest prices starting at $144 and $196, respectively. These flights start at 51% 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 United Airlines, as they are both options that can get you from Chicago to Washington, D.C. for a low price.

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.

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).

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

The most popular flight routes from Chicago to Washington, D.C. are Chicago O'Hare Intl - Washington, D.C. Reagan-National, Chicago O'Hare Intl - Washington, D.C. Dulles Intl and Chicago O'Hare Intl - Baltimore/Washington.

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

The cheapest flight price from Chicago to Washington, D.C. is $126. On average you can expect to pay $1,476. The most popular route, (Chicago O'Hare Intl - Washington, D.C. Reagan-National), can usually be booked for $249.

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: Egyptair (96%), Avianca (92%), ITA Airways (90%).

What are the most popular airlines that fly from Chicago to Washington, D.C.?

The most popular airlines flying from Chicago to Washington, D.C. are United Airlines, American Airlines and Southwest. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on Chicago-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Washington, D.C. flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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.

$92+ Cheap Flights from Chicago to Washington, D.C.

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Cheapflights Tip: The best prices from Chicago to Washington, D.C. are usually found in January or December, booked 72 days in advance, depart on a Friday or Thursday and return on a Saturday

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

Cheapest

Best

Last-minute

One-way

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 September 28, 2026.

Sun 10/116:00 am -

Nonstop2h 03m

Thu 10/159:58 am -

Nonstop2h 23m

Deal found 9/25

$143

Mon 10/266:00 am -

Nonstop2h 03m

Mon 10/266:25 pm -

2 stops16h 10m

Deal found 9/27

$178

Wed 10/148:04 am -

1 stop11h 07m

Wed 10/217:50 am -

1 stop11h 41m

Deal found 9/23

$182

Sat 12/128:15 am -

1 stop8h 40m

Sun 12/132:40 pm -

Nonstop2h 24m

Deal found 9/24

$183

Tue 10/277:15 am -

1 stop8h 57m

Sat 10/317:52 am -

1 stop11h 24m

Deal found 9/23

$183

Thu 10/226:00 am -

Nonstop2h 03m

Mon 10/269:58 am -

Nonstop2h 23m

Deal found 9/26

$185

Mon 10/196:00 am -

Nonstop2h 03m

Mon 10/269:58 am -

Nonstop2h 23m

Deal found 9/26

$186

Wed 10/218:04 am -

1 stop11h 07m

Tue 10/278:05 am -

1 stop5h 46m

Deal found 9/24

$187

Sat 10/246:00 am -

1 stop10h 13m

Sat 10/317:52 am -

1 stop5h 59m

Deal found 9/23

$188

Thu 11/56:00 am -

Nonstop1h 57m

Mon 11/99:53 am -

Nonstop2h 30m

Deal found 9/27

$189

Sat 10/246:00 am -

1 stop10h 13m

Wed 10/288:05 am -

1 stop11h 11m

Deal found 9/26

$191

Sat 11/77:15 am -

1 stop8h 57m

Sat 11/147:52 am -

1 stop5h 59m

Deal found 9/23

$192

Best flights from Chicago to Washington, D.C.
Discover carefully curated flight deals from Chicago to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.

Thu 10/1511:00 am -

Nonstop1h 45m

Tue 10/206:25 pm -

Nonstop2h 00m

Deal found 9/23

$297

Sat 10/175:55 pm -

Nonstop2h 07m

Thu 10/227:09 pm -

Nonstop2h 19m

Deal found 9/24

$297

Tue 12/112:34 pm -

1 stop8h 36m

Mon 12/1410:15 am -

1 stop5h 34m

Deal found 9/25

$309

Thu 12/246:15 pm -

Nonstop1h 50m

Wed 12/3010:05 pm -

Nonstop2h 05m

Deal found 9/25

$297

Thu 10/157:45 pm -

Nonstop2h 14m

Tue 10/2011:55 am -

Nonstop2h 20m

Deal found 9/23

$297

Tue 1/125:30 am -

1 stop5h 18m

Tue 1/125:30 pm -

1 stop4h 07m

Deal found 9/27

$317

Sat 12/56:50 am -

Nonstop1h 52m

Wed 12/96:10 am -

Nonstop2h 21m

Deal found 9/23

$297

Thu 12/37:25 am -

Nonstop1h 50m

Mon 12/711:00 am -

Nonstop2h 05m

Deal found 9/23

$297

Thu 10/228:36 am -

1 stop6h 44m

Mon 10/265:35 pm -

1 stop3h 55m

Deal found 9/27

$317

Wed 10/2110:49 am -

Nonstop2h 09m

Sat 10/246:29 am -

Nonstop2h 21m

Deal found 9/23

$297

Thu 10/228:50 am -

Nonstop1h 45m

Mon 10/268:40 pm -

Nonstop2h 00m

Deal found 9/27

$297

Wed 10/211:27 pm -

1 stop4h 10m

Sat 10/249:40 am -

1 stop4h 07m

Deal found 9/24

$317

Wed 12/1610:55 am -

Nonstop2h 06m

Thu 12/176:00 am -

Nonstop2h 25m

Deal found 9/27

$297

Thu 11/1212:45 pm -

1 stop3h 35m

Mon 11/168:15 pm -

Nonstop2h 15m

Deal found 9/25

$303

Thu 10/296:44 pm -

1 stop3h 32m

Mon 11/26:12 pm -

1 stop5h 21m

Deal found 9/23

$317

Thu 11/129:00 am -

Nonstop2h 04m

Tue 11/178:30 am -

Nonstop2h 30m

Deal found 9/25

$297

Thu 10/227:25 am -

Nonstop1h 45m

Mon 10/265:25 pm -

1 stop3h 40m

Deal found 9/27

$303

Sat 12/56:41 pm -

1 stop3h 42m

Wed 12/912:34 pm -

1 stop4h 42m

Deal found 9/23

$317

Thu 11/57:00 am -

Nonstop1h 56m

Thu 11/53:30 pm -

Nonstop2h 20m

Deal found 9/24

$297

Thu 11/57:50 am -

1 stop3h 30m

Mon 11/92:55 pm -

Nonstop2h 05m

Deal found 9/27

$303

Mon 10/266:10 am -

1 stop4h 40m

Wed 10/286:12 pm -

1 stop6h 45m

Deal found 9/27

$317

Sat 10/244:59 pm -

Nonstop2h 09m

Tue 10/271:05 pm -

Nonstop2h 21m

Deal found 9/24

$297

Wed 10/288:15 pm -

Nonstop1h 50m

Tue 11/32:40 pm -

1 stop4h 05m

Deal found 9/24

$303

Thu 10/226:10 am -

1 stop4h 40m

Mon 10/2610:57 am -

1 stop6h 35m

Deal found 9/27

$317

Thu 12/37:45 am -

Nonstop1h 58m

Mon 12/71:01 pm -

Nonstop2h 21m

Deal found 9/23

$297

Mon 10/195:00 pm -

Nonstop1h 50m

Mon 10/263:25 pm -

1 stop4h 50m

Deal found 9/26

$307

Sat 10/316:12 pm -

Nonstop2h 03m

Wed 11/46:11 am -

Nonstop2h 19m

Deal found 9/27

$297

Tue 1/129:50 am -

1 stop5h 41m

Fri 1/1510:00 am -

1 stop3h 37m

Deal found 9/27

$330

Thu 11/57:50 am -

1 stop3h 30m

Thu 11/54:40 pm -

1 stop4h 25m

Deal found 9/27

$308

Sat 12/59:35 pm -

Nonstop1h 49m

Wed 12/910:10 am -

Nonstop2h 23m

Deal found 9/23

$297

Last-minute flights from Chicago to Washington, D.C.
Discover last-minute flight deals from Chicago to Washington, D.C.. Data last updated September 28, 2026 and is based on user searches.

Sun 10/116:00 am -

Nonstop2h 03m

Thu 10/159:58 am -

Nonstop2h 23m

Deal found 9/25

$143

Wed 10/148:04 am -

1 stop11h 07m

Wed 10/217:50 am -

1 stop11h 41m

Deal found 9/23

$182

Mon 10/196:00 am -

Nonstop2h 03m

Mon 10/269:58 am -

Nonstop2h 23m

Deal found 9/26

$186

Wed 10/218:04 am -

1 stop11h 07m

Tue 10/278:05 am -

1 stop5h 46m

Deal found 9/24

$187

Thu 10/226:00 am -

Nonstop2h 03m

Mon 10/269:58 am -

Nonstop2h 23m

Deal found 9/26

$185

Thu 10/226:00 am -

Nonstop2h 03m

Mon 11/29:53 am -

Nonstop2h 30m

Deal found 9/27

$189

Sat 10/246:00 am -

1 stop10h 13m

Sat 10/317:52 am -

1 stop5h 59m

Deal found 9/23

$188

Sat 10/246:00 am -

1 stop10h 13m

Wed 10/288:05 am -

1 stop11h 11m

Deal found 9/26

$191

Sat 10/246:00 am -

1 stop10h 13m

Tue 10/278:05 am -

1 stop5h 46m

Deal found 9/23

$193

Mon 10/266:00 am -

Nonstop2h 03m

Mon 10/266:25 pm -

2 stops16h 10m

Deal found 9/27

$178

Tue 10/277:15 am -

1 stop8h 57m

Wed 10/288:05 am -

1 stop11h 11m

Deal found 9/24

$183

Thu 10/296:00 am -

Nonstop1h 57m

Mon 11/29:53 am -

Nonstop2h 30m

Deal found 9/27

$191

One-way flights from Chicago to Washington, D.C.
Search for one-way flight options from Chicago to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.

Mon 10/266:00 am -

Nonstop2h 03m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/26

$92

Thu 10/226:00 am -

Nonstop2h 03m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/25

$93

Thu 10/296:00 am -

Nonstop1h 57m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/27

$95

Tue 10/208:04 am -

1 stop27h 57m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/25

$96

Tue 10/67:11 am -

1 stop11h 58m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$96

Tue 10/138:04 am -

1 stop27h 57m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/25

$97

Sat 11/77:15 am -

1 stop8h 57m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$97

Tue 10/279:53 am -

1 stop6h 19m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/27

$100

Tue 12/88:15 am -

1 stop5h 34m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/27

$100

Fri 10/236:00 am -

Nonstop2h 03m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$102

Fri 10/166:00 am -

Nonstop2h 03m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/24

$103

Tue 10/208:04 am -

1 stop11h 07m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/26

$103

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$143
One-way from	$92 (Super.com)
Popular in	June
Cheapest in	January
Average price	$258
Good round-trip deal	$194 or less
Good one-way deal	$145 or less

Provider with most accurate pricing for Chicago (CHI)-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Chicago (CHI)-Washington, D.C. (WAS) flights.

Search Deals

From Chicago (CHI) to Washington, D.C. (WAS)

Search Deals

One-way flight from Chicago (CHI) to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($55 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Chicago (CHI) to Washington, D.C. (WAS).

Search Deals

Price to beat on a one-way flight from Chicago (CHI) to Washington, D.C. (WAS).

Search Deals

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 round-trip

ChicagoWashington, D.C.

MDW Chicago Midway - IAD Washington, D.C. Dulles Intl

MDWIAD

Chicago Midway

Tue 10/27

9:53 am-5:12 pm

1 stop6h 19m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$102

ChicagoWashington, D.C.

MDW Chicago Midway - IAD Washington, D.C. Dulles Intl

MDWIAD

Chicago Midway

Thu 10/22

6:22 am-5:13 pm

1 stop9h 51m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$123

ChicagoBaltimore

MDW Chicago Midway - BWI Baltimore/Washington

MDWBWI

Chicago Midway

Thu 11/5

5:05 am-7:55 am

Nonstop1h 50m

Baltimore/Washington

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

ChicagoBaltimore

ORD Chicago O'Hare Intl - BWI Baltimore/Washington

ORDBWI

Chicago O'Hare Intl

Sat 10/24

7:45 pm-11:00 pm

Nonstop2h 15m

Baltimore/Washington

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

ChicagoBaltimore

MDW Chicago Midway - BWI Baltimore/Washington

MDWBWI

Chicago Midway

Mon 11/2

5:05 am-7:55 am

Nonstop1h 50m

Baltimore/Washington

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

ChicagoBaltimore

ORD Chicago O'Hare Intl - BWI Baltimore/Washington

ORDBWI

Chicago O'Hare Intl

Sat 10/17

7:30 am-10:30 am

Nonstop2h 00m

Baltimore/Washington

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

ChicagoBaltimore

MDW Chicago Midway - BWI Baltimore/Washington

MDWBWI

Chicago Midway

Wed 12/23

7:10 am-10:00 am

Nonstop1h 50m

Baltimore/Washington

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

ChicagoBaltimore

ORD Chicago O'Hare Intl - BWI Baltimore/Washington

ORDBWI

Chicago O'Hare Intl

Tue 10/27

3:59 pm-7:03 pm

Nonstop2h 04m

Baltimore/Washington

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

ChicagoBaltimore

MDW Chicago Midway - BWI Baltimore/Washington

MDWBWI

Chicago Midway

Wed 10/21

8:10 am-11:00 am

Nonstop1h 50m

Baltimore/Washington

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

ChicagoBaltimore

ORD Chicago O'Hare Intl - BWI Baltimore/Washington

ORDBWI

Chicago O'Hare Intl

Wed 10/21

5:55 pm-9:02 pm

Nonstop2h 07m

Baltimore/Washington

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Showing 1-10 of 60 resultsSorted by cheapest first

...

Compare providers for flights from Chicago to Washington, D.C.

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 September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy2 stars	Trust Score*3 stars
Ovago	Price Accuracy3 stars	Trust Score*3 stars
CheapOair	Price Accuracy3 stars	Trust Score*3 stars
Gotogate	Price Accuracy2 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
CheapTicketsDeal	Price Accuracy1 star	Trust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Washington, D.C. flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

CHI-WAS

ORD-BWI

ORD-IAD

MDW-IAD

MDW-BWI

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.

CHI-WAS

ORD-BWI

ORD-IAD

MDW-IAD

MDW-BWI

What is the cheapest month to book a flight from Chicago to Washington, D.C.?

Currently, December is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of $298). Flying from Chicago to Washington, D.C. in June is currently the most expensive (average of $402). 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 17% versus a flight at noon.

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

The most flights from CHI to WAS are scheduled on a Friday (97 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (71 on average).

How much does it cost to fly round-trip 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 $177 and $337 in October.
The cheapest round-trip price found within the last 5 days was $143 on Frontier (Oct 11-Oct 15).

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 133 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 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, 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.?

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 53 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

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

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

Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to Washington, D.C. trip

Our travel experts

Gabriel Leigh

Expert on British Airways

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.

Harriet Baskas

Expert on United Airlines

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.

Ramsey Qubein

Expert on ORD and IAD

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.

Emily Zemler

Expert on DCA

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.

Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican 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.

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest

8.0

Very good

4,202 reviews

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

United Airlines

7.4

Good

10,246 reviews

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

American Airlines

7.0

Good

12,096 reviews

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

Frontier

5.6

Fair

2,569 reviews

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

Related info for your journey

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 45m. Fly via Southwest, United Airlines, or Delta 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 JetBlue is currently your cheapest option to Washington, D.C., with prices starting at $141. Additional round-trip tickets that might be worth considering are offered by Frontier and American Airlines, with the lowest prices starting at $144 and $196, respectively. These flights start at 51% 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 United Airlines, 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.?
The most popular flight routes from Chicago to Washington, D.C. are Chicago O'Hare Intl - Washington, D.C. Reagan-National, Chicago O'Hare Intl - Washington, D.C. Dulles Intl and Chicago O'Hare Intl - Baltimore/Washington.
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: Egyptair (96%), Avianca (92%), ITA Airways (90%).
What are the cheapest flights from Chicago to Washington, D.C.?
The cheapest flight price from Chicago to Washington, D.C. is $126. On average you can expect to pay $1,476. The most popular route, (Chicago O'Hare Intl - Washington, D.C. Reagan-National), can usually be booked for $249.
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, December is the cheapest month in which you can book a flight from Chicago to Washington, D.C. (average of $298). Flying from Chicago to Washington, D.C. in June is currently the most expensive (average of $402). 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.

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Top 5 airlines flying from Chicago to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$56	Average$206	FlexibilityNo cancel fee	On-time62%
JetBlue	Cheapest$141	Average$248	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$152	Average$381	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$188	Average$365	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$195	Average$338	FlexibilityNo cancel fee	On-time71%

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$92+ Cheap flights from Chicago (CHI) to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/26. Fares are subject to change and may not be available on all flights or dates of travel.

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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 September 28, 2026.

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 September 28, 2026.

Best flights from Chicago to Washington, D.C.Discover carefully curated flight deals from Chicago to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.

Discover carefully curated flight deals from Chicago to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.

Last-minute flights from Chicago to Washington, D.C.Discover last-minute flight deals from Chicago to Washington, D.C.. Data last updated September 28, 2026 and is based on user searches.

Discover last-minute flight deals from Chicago to Washington, D.C.. Data last updated September 28, 2026 and is based on user searches.

One-way flights from Chicago to Washington, D.C.Search for one-way flight options from Chicago to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.

Search for one-way flight options from Chicago to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.

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Use the filters below to find and compare flights from Chicago to Washington, D.C. that are best for you.

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 September.

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.

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What is the cheapest month to book a flight from Chicago to Washington, D.C.?

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 September 28, 2026.

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 17% versus a flight at noon.

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

The most flights from CHI to WAS are scheduled on a Friday (97 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (71 on average).

How much does it cost to fly round-trip 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 $177 and $337 in October.The cheapest round-trip price found within the last 5 days was $143 on Frontier (Oct 11-Oct 15).

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 133 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 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, 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.?

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 53 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 September 26, 2026.

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

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

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Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican 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.

Related info for your journey

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

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

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

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

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

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

Can I find deals for flights from Chicago to Washington, D.C. that include hotel bookings?

How can I find direct flights from Chicago to Washington, D.C.?

Can I find deals for business class flights from Chicago to Washington, D.C.?

What is the cheapest month to book a flight from Chicago to Washington, D.C.?

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

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Alternative routes for Chicago to Washington, D.C.

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Complete your trip

Complete your trip to Washington, D.C. by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Chicago to Washington, D.C. by cabin class

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 September 28, 2026.

Best flights from Chicago to Washington, D.C.
Discover carefully curated flight deals from Chicago to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.

Last-minute flights from Chicago to Washington, D.C.
Discover last-minute flight deals from Chicago to Washington, D.C.. Data last updated September 28, 2026 and is based on user searches.

One-way flights from Chicago to Washington, D.C.
Search for one-way flight options from Chicago to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.

Chicago to Washington, D.C. flights typically cost between $177 and $337 in October.
The cheapest round-trip price found within the last 5 days was $143 on Frontier (Oct 11-Oct 15).