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Cheap flights from Chicago O'Hare Intl Airport to Washington, D.C. from $80

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Washington, D.C. departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:41 pm - 7:51 am
ORD
-
IAD
14h 10m1 stop
Multiple Airlines Logo
10:08 pm - 11:22 am
IAD
-
ORD
14h 14m2 stops
$157Multiple Airlines
Thu, Jan 15 - Mon, Jan 19
Multiple Airlines Logo
6:05 pm - 1:01 pm
ORD
-
IAD
17h 56m1 stop
Multiple Airlines Logo
2:53 pm - 10:53 am
IAD
-
ORD
21h 00m2 stops
$160Multiple Airlines
Wed, Jan 7 - Sun, Jan 11
Frontier Logo
8:27 pm - 7:55 am
ORD
-
IAD
10h 28m1 stop
Frontier Logo
6:00 am - 11:35 am
IAD
-
ORD
6h 35m1 stop
$162Frontier
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
8:27 pm - 7:55 am
ORD
-
IAD
10h 28m1 stop
Frontier Logo
6:00 am - 11:35 am
IAD
-
ORD
6h 35m1 stop
$163Frontier
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
8:27 pm - 7:55 am
ORD
-
IAD
10h 28m1 stop
Frontier Logo
6:00 am - 11:35 am
IAD
-
ORD
6h 35m1 stop
$164Frontier
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
8:27 pm - 7:40 am
ORD
-
IAD
10h 13m1 stop
Frontier Logo
6:00 am - 12:08 pm
IAD
-
ORD
7h 08m1 stop
$168Frontier
Sun, Jan 11 - Sun, Jan 18
Frontier Logo
4:46 pm - 11:28 am
ORD
-
IAD
17h 42m1 stop
Frontier Logo
6:00 am - 12:08 pm
IAD
-
ORD
7h 08m1 stop
$169Frontier
Sat, Jan 10 - Thu, Jan 15
Multiple Airlines Logo
3:22 pm - 7:40 am
ORD
-
IAD
15h 18m2 stops
Multiple Airlines Logo
10:43 am - 4:58 pm
IAD
-
ORD
7h 15m1 stop
$173Multiple Airlines
Sat, Jan 10 - Sat, Jan 17
Multiple Airlines Logo
10:07 am - 6:24 pm
ORD
-
IAD
7h 17m1 stop
Multiple Airlines Logo
6:00 am - 12:08 pm
IAD
-
ORD
7h 08m1 stop
$175Multiple Airlines
Thu, Jan 15 - Mon, Jan 19
Multiple Airlines Logo
10:07 am - 6:24 pm
ORD
-
IAD
7h 17m1 stop
Multiple Airlines Logo
6:00 am - 12:08 pm
IAD
-
ORD
7h 08m1 stop
$176Multiple Airlines
Thu, Jan 15 - Mon, Jan 19

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

Our best Frontier deals on Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Jan 8
ORD8:27 pmChicago O'Hare Intl
10h 28m
1 stop
IAD7:55 amWashington, D.C. Dulles Intl
Jan 12
IAD6:00 amWashington, D.C. Dulles Intl
6h 35m
1 stop
ORD11:35 amChicago O'Hare Intl
$162
Find similar
Frontier
Jan 8
ORD8:27 pmChicago O'Hare Intl
10h 28m
1 stop
IAD7:55 amWashington, D.C. Dulles Intl
Jan 12
IAD6:00 amWashington, D.C. Dulles Intl
6h 35m
1 stop
ORD11:35 amChicago O'Hare Intl
$163
Find similar
Frontier
Jan 8
ORD8:27 pmChicago O'Hare Intl
10h 28m
1 stop
IAD7:55 amWashington, D.C. Dulles Intl
Jan 12
IAD6:00 amWashington, D.C. Dulles Intl
6h 35m
1 stop
ORD11:35 amChicago O'Hare Intl
$164
Find similar

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

Our best United Airlines deals on Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Dec 24
ORD1:24 pmChicago O'Hare Intl
2h 00m
IAD4:24 pmWashington, D.C. Dulles Intl
Dec 31
IAD8:15 amWashington, D.C. Dulles Intl
2h 23m
ORD9:38 amChicago O'Hare Intl
$223
Find similar
United Airlines
Dec 24
ORD1:24 pmChicago O'Hare Intl
2h 00m
IAD4:24 pmWashington, D.C. Dulles Intl
Jan 6
IAD10:28 pmWashington, D.C. Dulles Intl
2h 11m
ORD11:39 pmChicago O'Hare Intl
$227
Find similar
United Airlines
Dec 25
ORD1:24 pmChicago O'Hare Intl
2h 00m
IAD4:24 pmWashington, D.C. Dulles Intl
Feb 19
IAD1:02 pmWashington, D.C. Dulles Intl
2h 18m
ORD2:20 pmChicago O'Hare Intl
$246
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated December 14, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 1/15

4:41 pm-7:51 am

1 stop14h 10m

Washington, D.C. Dulles Intl

Mon 1/19

10:08 pm-11:22 am

2 stops14h 14m

$157

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Wed 1/7

6:05 pm-1:01 pm

1 stop17h 56m

Washington, D.C. Dulles Intl

Sun 1/11

2:53 pm-10:53 am

2 stops21h 00m

$160

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 1/8

8:27 pm-7:55 am

1 stop10h 28m

Washington, D.C. Dulles Intl

Mon 1/12

6:00 am-11:35 am

1 stop6h 35m

$162

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 1/8

8:27 pm-7:55 am

1 stop10h 28m

Washington, D.C. Dulles Intl

Mon 1/12

6:00 am-11:35 am

1 stop6h 35m

$163

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 1/8

8:27 pm-7:55 am

1 stop10h 28m

Washington, D.C. Dulles Intl

Mon 1/12

6:00 am-11:35 am

1 stop6h 35m

$164

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Sun 1/11

8:27 pm-7:40 am

1 stop10h 13m

Washington, D.C. Dulles Intl

Sun 1/18

6:00 am-12:08 pm

1 stop7h 08m

$168

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Sat 1/10

4:46 pm-11:28 am

1 stop17h 42m

Washington, D.C. Dulles Intl

Thu 1/15

6:00 am-12:08 pm

1 stop7h 08m

$169

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Sat 1/10

3:22 pm-7:40 am

2 stops15h 18m

Washington, D.C. Dulles Intl

Sat 1/17

10:43 am-4:58 pm

1 stop7h 15m

$173

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 1/15

10:07 am-6:24 pm

1 stop7h 17m

Washington, D.C. Dulles Intl

Mon 1/19

6:00 am-12:08 pm

1 stop7h 08m

$175

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 1/15

10:07 am-6:24 pm

1 stop7h 17m

Washington, D.C. Dulles Intl

Mon 1/19

6:00 am-12:08 pm

1 stop7h 08m

$176

Flights are sorted by cheapest round-trip flights first.

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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. Dulles Intl Airport

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

What is the typical price of a round-trip flight between Chicago O'Hare Intl Airport and Washington, D.C. Dulles Intl Airport?

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

In general, September is the cheapest month to fly from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $282. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $292.

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

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $585. 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. Dulles Intl Airport for around $802.

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

Flying to Washington, D.C. Dulles Intl Airport from Chicago O'Hare Intl Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $472 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $968 on average. Flights to Washington, D.C. Dulles Intl Airport from Chicago O'Hare Intl Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport for around $311 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Chicago O'Hare Intl Airport for as low as $254 on momondo.

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

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to Washington, D.C. Dulles Intl 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. Dulles Intl Airport flights?

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

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

As of December 2025, prices for Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 20% 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. Dulles Intl Airport

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. Dulles Intl Airport 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. Dulles Intl Airport (ORD to IAD) 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. Dulles Intl Airport

Best Price Found

$211

Fastest flight time

1h 44m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Chicago O'Hare Intl Airport in the past 72 hours is $211. The best round-trip flight deal from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $662.
The fastest flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport takes 1h 44m
Direct flights go from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is Chicago O'Hare Intl to Washington, D.C. Dulles Intl by plane?

    Chicago O'Hare Intl and Washington, D.C. Dulles Intl are 587.2 mi apart from one another. In terms of flight time, this usually takes a little over 1h 44m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport are updated daily.

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

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

    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. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport?

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

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $103Free CancellationRating
5.8
3,081 reviews
Search Frontier flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $200Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights

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

    United Airlines flight deals from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport start from $200 round-trip. Over the 22 United Airlines flights for this route in a normal week, average airfare is usually $322 round-trip - but some users have found much cheaper deals with momondo.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Harpers Ferry
Rockville
Gaithersburg
Reston
Manassas
Sterling
Fairfax

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Chicago.

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

Yes. All flights to Washington, D.C. from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Chicago to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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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