What is the cheapest airline that flies from Chicago O'Hare Intl to Washington, D.C.?

Frontier, United Airlines, and Spirit Airlines are the most popular carriers operating from Chicago O'Hare Intl to Washington, D.C.

How many flights depart from Chicago O'Hare Intl Airport to Washington, D.C. on average per day?

82 flights are operational daily from Chicago O'Hare Intl Airport to Washington, D.C. as of February 2026. The most popular departure time for this route is 6:00PM, with 38% of flights per day taking off at noon.

What airlines fly to Washington, D.C.?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Washington, D.C. from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 7 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

How many flights depart from Chicago O'Hare Intl Airport to Washington, D.C. on average per week?

575 flights are operational weekly from Chicago O'Hare Intl Airport to Washington, D.C. as of February 2026. The most popular departure day for this route is Fri, with 18% of flights per week taking off on this day.

How often are flights from Chicago to Washington, D.C. delayed?

Historically, on average around 21% of flights between Chicago and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 131 minutes.

What is the most punctual flight time for Chicago to Washington, D.C. flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Chicago to Washington, D.C. flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 20% of their flights experiencing any sort of delay.

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Washington, D.C.?

As of February 2026, there are 7 operators available to choose from for flights from Chicago O'Hare Intl Airport to Washington, D.C..

How old do you have to be to fly from Chicago O'Hare Intl Airport to Washington, D.C.?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$65 Cheap Flights from Chicago O'Hare Intl Airport to Washington, D.C. in 2026

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Find the cheapest flights from Chicago O'Hare Intl Airport to Washington, D.C.

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:25 pm - 3:30 pm

ORD

BWI

2h 05mnonstop

4:25 pm - 5:51 pm

BWI

ORD

2h 26mnonstop

$106Frontier

Fri, May 1 - Mon, May 4

12:25 pm - 3:30 pm

ORD

BWI

2h 05mnonstop

4:25 pm - 5:51 pm

BWI

ORD

2h 26mnonstop

$107Frontier

Thu, Apr 30 - Sun, May 3

1:19 pm - 4:24 pm

ORD

BWI

2h 05mnonstop

3:19 pm - 10:39 pm

BWI

ORD

8h 20m

1 stop

$108Frontier

Thu, Apr 2 - Tue, Apr 7

5:15 am - 8:24 am

ORD

BWI

2h 09mnonstop

4:28 pm - 11:38 pm

BWI

ORD

8h 10m

1 stop

$109Frontier

Thu, Mar 5 - Wed, Mar 11

5:15 am - 8:24 am

ORD

BWI

2h 09mnonstop

11:30 am - 5:46 pm

BWI

ORD

7h 16m

1 stop

$116Multiple Airlines

Thu, Mar 5 - Mon, Mar 9

8:58 pm - 11:50 pm

ORD

DCA

1h 52mnonstop

7:50 pm - 9:15 pm

DCA

ORD

2h 25mnonstop

$154American Airlines

Sat, Mar 7 - Sat, Mar 14

7:00 am - 9:59 am

ORD

DCA

1h 59mnonstop

11:55 am - 1:15 pm

DCA

ORD

2h 20mnonstop

$155United Airlines

Sat, Apr 11 - Wed, Apr 15

1:06 pm - 4:09 pm

ORD

IAD

2h 03mnonstop

10:31 pm - 11:44 pm

IAD

ORD

2h 13mnonstop

$155United Airlines

Wed, Mar 11 - Sat, Mar 14

9:01 pm - 11:57 pm

ORD

DCA

1h 56mnonstop

11:36 am - 12:58 pm

DCA

ORD

2h 22mnonstop

$163American Airlines

Sat, Apr 11 - Wed, Apr 22

12:44 pm - 9:25 am

ORD

IAD

19h 41m

1 stop

7:00 am - 6:41 pm

IAD

ORD

12h 41m

1 stop

$164Multiple Airlines

Wed, Mar 4 - Tue, Mar 10

Delta flights from Chicago O'Hare Intl Airport to Washington, D.C.

Our best Delta deals on Chicago O'Hare Intl Airport to Washington, D.C. flight tickets

Delta

Feb 28

ORD5:37 pmChicago O'Hare Intl

4h 32m

1 stop

IAD11:09 pmWashington, D.C. Dulles Intl

Mar 7

IAD12:35 pmWashington, D.C. Dulles Intl

7h 44m

1 stop

ORD7:19 pmChicago O'Hare Intl

$177

Delta

Apr 11

ORD3:59 pmChicago O'Hare Intl

6h 35m

1 stop

DCA11:34 pmWashington, D.C. Reagan-National

Apr 15

DCA9:00 amWashington, D.C. Reagan-National

5h 14m

1 stop

ORD1:14 pmChicago O'Hare Intl

$214

Delta

Feb 27

ORD7:00 amChicago O'Hare Intl

8h 27m

1 stop

DCA4:27 pmWashington, D.C. Reagan-National

Mar 7

DCA2:00 pmWashington, D.C. Reagan-National

5h 55m

1 stop

ORD6:55 pmChicago O'Hare Intl

$299

United Airlines flights from Chicago O'Hare Intl Airport to Washington, D.C.

Our best United Airlines deals on Chicago O'Hare Intl Airport to Washington, D.C. flight tickets

United Airlines

Mar 11

ORD1:06 pmChicago O'Hare Intl

2h 03m

IAD4:09 pmWashington, D.C. Dulles Intl

Mar 14

IAD10:31 pmWashington, D.C. Dulles Intl

2h 13m

ORD11:44 pmChicago O'Hare Intl

$155

United Airlines

Apr 2

ORD7:00 amChicago O'Hare Intl

2h 02m

BWI10:02 amBaltimore/Washington

Apr 4

BWI11:08 amBaltimore/Washington

2h 18m

ORD12:26 pmChicago O'Hare Intl

$156

United Airlines

Feb 28

ORD2:00 pmChicago O'Hare Intl

2h 00m

IAD5:00 pmWashington, D.C. Dulles Intl

Feb 28

IAD10:30 pmWashington, D.C. Dulles Intl

2h 13m

ORD11:43 pmChicago O'Hare Intl

$157

momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Fri 5/1

12:25 pm-3:30 pm

Nonstop2h 05m

Baltimore/Washington

Mon 5/4

4:25 pm-5:51 pm

Nonstop2h 26m

$106

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 4/30

12:25 pm-3:30 pm

Nonstop2h 05m

Baltimore/Washington

Sun 5/3

4:25 pm-5:51 pm

Nonstop2h 26m

$107

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 4/2

1:19 pm-4:24 pm

Nonstop2h 05m

Baltimore/Washington

Tue 4/7

3:19 pm-10:39 pm

1 stop8h 20m

$108

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 3/5

5:15 am-8:24 am

Nonstop2h 09m

Baltimore/Washington

Wed 3/11

4:28 pm-11:38 pm

1 stop8h 10m

$109

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 3/5

5:15 am-8:24 am

Nonstop2h 09m

Baltimore/Washington

Mon 3/9

11:30 am-5:46 pm

1 stop7h 16m

$116

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sat 3/7

8:58 pm-11:50 pm

Nonstop1h 52m

Washington, D.C. Reagan-National

Sat 3/14

7:50 pm-9:15 pm

Nonstop2h 25m

$154

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sat 4/11

7:00 am-9:59 am

Nonstop1h 59m

Washington, D.C. Reagan-National

Wed 4/15

11:55 am-1:15 pm

Nonstop2h 20m

$155

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Wed 3/11

1:06 pm-4:09 pm

Nonstop2h 03m

Washington, D.C. Dulles Intl

Sat 3/14

10:31 pm-11:44 pm

Nonstop2h 13m

$155

ChicagoWashington, D.C.

ORD - DCA

ORDDCA

Chicago O'Hare Intl

Sat 4/11

9:01 pm-11:57 pm

Nonstop1h 56m

Washington, D.C. Reagan-National

Wed 4/22

11:36 am-12:58 pm

Nonstop2h 22m

$163

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Wed 3/4

12:44 pm-9:25 am

1 stop19h 41m

Washington, D.C. Dulles Intl

Tue 3/10

7:00 am-6:41 pm

1 stop12h 41m

$164

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Washington, D.C.?

The month of September is, on average, the cheapest month to fly to Washington, D.C. from Chicago O'Hare Intl Airport, with most prices found around $178. If you’re not able to fly to Washington, D.C. in September, then August is your next best option. Flight prices from Chicago O'Hare Intl Airport to Washington, D.C. during August average around $212.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Chicago O'Hare Intl Airport is on a Friday. momondo users have found tickets for Friday departures for as low as $339. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to Washington, D.C. for around $526.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the morning is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Washington, D.C. when you can find flight prices for as low as $335. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $776. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Chicago O'Hare Intl to Washington, D.C. flight route?

Fly from Chicago O'Hare Intl to Baltimore/Washington for the best Chicago O'Hare Intl - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $326 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Chicago O'Hare Intl Airport for as low as $258 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago O'Hare Intl Airport to Washington, D.C. flights?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to Washington, D.C..

How have Chicago O'Hare Intl Airport to Washington, D.C. flight prices changed over time?

As of February 2026, prices for Chicago O'Hare Intl Airport to Washington, D.C. flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Washington, D.C. (ORD to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Washington, D.C.

Best Price Found	$89
Fastest flight time	1h 44m
Direct flights	Every day
Airports in Washington, D.C.	2 airports

The best one-way flight to Washington, D.C. from Chicago O'Hare Intl Airport in the past 72 hours is $89. The best round-trip flight deal from Chicago O'Hare Intl Airport to Washington, D.C. found on momondo in the last 72 hours is $145.

The fastest flight from Chicago O'Hare Intl Airport to Washington, D.C. takes 1h 44m

Direct flights go from Chicago O'Hare Intl Airport to Washington, D.C. every day.

There are 2 airports in Washington, D.C.. From Chicago O'Hare Intl Airport there are direct flights to Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD).

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How far is Chicago O'Hare Intl to Washington, D.C. by plane?
A flight from Chicago O'Hare Intl to Washington, D.C. will travel around 608.8 mi. Typically, this will take 1h 44m by plane in normal conditions.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Washington, D.C.?
Prices for flights from Chicago O'Hare Intl Airport to Washington, D.C. refresh daily.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Washington, D.C.?
As of February 2026, there are 7 operators available to choose from for flights from Chicago O'Hare Intl Airport to Washington, D.C..
How old do you have to be to fly from Chicago O'Hare Intl Airport to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Chicago O'Hare Intl Airport to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chicago O'Hare Intl Airport to Washington, D.C. is Airbus A319 (12.31% of total bookings). The next most popular plane models are Boeing 737-800 (11.45%), Boeing 737-900 (8.23%), and Embraer 175 (7.98%).
What is the most popular airline from Chicago O'Hare Intl Airport to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago O'Hare Intl Airport to Washington, D.C. is United Airlines (41% of total bookings). The next most popular airlines are American Airlines (35%), Frontier (17%), and Southwest (4%).

Best airlines flying from Chicago O'Hare Intl Airport to Washington, D.C.

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Washington, D.C. with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $42	Free Cancellation	Rating 6.3 8,456 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $57	Free Cancellation	Rating 5.7 3,047 reviews	Search Frontier flights
United Airlines	PriceFrom $114	Free Cancellation	Rating 7.4 9,299 reviews	Search United Airlines flights
Delta	PriceFrom $124	Free Cancellation	Rating 7.9 8,204 reviews	Search Delta flights
JetBlue	PriceFrom $141	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
American Airlines	PriceFrom $148	Free Cancellation	Rating 7.2 11,294 reviews	Search American Airlines flights
Southwest	PriceFrom $158	Free Cancellation	Rating 8.0 4,285 reviews	Search Southwest flights

United Airlines Flights From Chicago O'Hare Intl Airport to Washington, D.C.
United Airlines operates around 106 flights from Chicago O'Hare Intl Airport to Washington, D.C. every week. The average price of these flights found in the last 72 hours has been $315, but momondo users have found United Airlines deals from Chicago O'Hare Intl Airport to Washington, D.C. from as low as $114 round-trip. United Airlines has been scored 7.4/10 in 9,299 reviews.
American Airlines Flights From Chicago O'Hare Intl Airport to Washington, D.C.
Another popular option for Chicago O'Hare Intl Airport to Washington, D.C. flights is American Airlines (7.2/10, 11,294 ratings). American Airlines flies from Chicago O'Hare Intl Airport to Washington, D.C. around 50 times per week, with deals starting from $148 round-trip and rising to an average price of around $278.

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Colonial Beach

Tysons

Silver Spring

Towson

Fredericksburg

Gaithersburg

Rockville

Manassas

Springfield

Fairfax

Linthicum Heights

Bethesda

Glen Burnie

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Washington, D.C.?

It is quick and easy to find Chicago to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from Chicago to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. from Chicago which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Chicago to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Washington, D.C..

I’m not ready to book a flight from Chicago to Washington, D.C. right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Chicago to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Chicago O'Hare Intl Airport to Washington, D.C. from $65

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Delta flights from Chicago O'Hare Intl Airport to Washington, D.C.

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Our best United Airlines deals on Chicago O'Hare Intl Airport to Washington, D.C. flight tickets

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Washington, D.C.

What is the cheapest month to fly to Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

What is the cheapest Chicago O'Hare Intl to Washington, D.C. flight route?

How far in advance should I book a flight to Washington, D.C.?

What cabin class options are available on Chicago O'Hare Intl to Washington, D.C. flights?

Can stopping save me money on Chicago O'Hare Intl Airport to Washington, D.C. flights?

How have Chicago O'Hare Intl Airport to Washington, D.C. flight prices changed over time?

What is the cheapest airline that flies from Chicago O'Hare Intl to Washington, D.C.?

What airlines fly to Washington, D.C.?

How often are flights from Chicago to Washington, D.C. delayed?

What is the most punctual flight time for Chicago to Washington, D.C. flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Chicago to Washington, D.C. flights?

How many flights depart from Chicago O'Hare Intl Airport to Washington, D.C. on average per day?

How many flights depart from Chicago O'Hare Intl Airport to Washington, D.C. on average per week?

When to book flights from Chicago O'Hare Intl Airport to Washington, D.C.

Cheap Chicago O'Hare Intl Airport to Washington, D.C. (ORD to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Washington, D.C.

Best Price Found

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Direct flights

Airports in Washington, D.C.

Best airlines flying from Chicago O'Hare Intl Airport to Washington, D.C.

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Washington, D.C. with momondo

United Airlines Flights From Chicago O'Hare Intl Airport to Washington, D.C.

American Airlines Flights From Chicago O'Hare Intl Airport to Washington, D.C.

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

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Washington, D.C.?

Can I find flights from Chicago to Washington, D.C. with flexible booking policies on momondo?

How can momondo help me find flights from Chicago to Washington, D.C.?

I’m not ready to book a flight from Chicago to Washington, D.C. right now. Can momondo alert me if prices change?

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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