ORD - IAD

$89 Find Cheap Flights from Chicago O'Hare Airport to Washington Dulles Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Dulles Intl departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$181
Typical prices: $251-$380
Frontier
Fri 9/25Fri 10/2
ORD - IAD • 1 stop
Cheapest non-stop
$184
Typical prices: $273-$489
United Airlines
Tue 9/1Sat 9/5
ORD - IAD • Non-stop
Nonstop flights
Every day
You can fly direct with United Airlines. Average duration is 2h 04m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
United Airlines
Most punctual • 82% on-time
Morning flights
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Tampa (TPA)
Cheapest • Avg $200 (round-trip)
Detroit (DTW)
Shortest trip • 4h 05m (one-way)
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 48% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 17% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
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Flight Deals

Cheap Flights from O'Hare Intl to Dulles Intl (ORD-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from O'Hare Intl to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from O'Hare Intl to Dulles Intl

Fri, Sep 25 - Fri, Oct 2
Frontier Logo
3:50 pm - 10:17 amORD  Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl
17h 27m1 stop Orlando
Frontier Logo
11:12 am - 10:59 pmIAD  Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl
12h 47m1 stop Orlando
$181Frontier
Mon, Aug 31 - Thu, Sep 3
Frontier Logo
6:05 am - 4:07 pmORD  Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl
9h 02m1 stop Orlando
Frontier Logo
8:59 am - 6:37 pmIAD  Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl
10h 38m1 stop Las Vegas Harry Reid Intl
$182Frontier
Mon, Oct 5 - Thu, Oct 8
Frontier Logo
7:11 am - 8:09 pmORD  Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl
11h 58m1 stop Fort Lauderdale
Frontier Logo
7:36 am - 6:31 pmIAD  Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl
11h 55m1 stop Atlanta Hartsfield-Jackson
$182Frontier
Fri, Sep 18 - Mon, Sep 21
Frontier Logo
7:11 am - 8:09 pmORD  Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl
11h 58m1 stop Fort Lauderdale
Frontier Logo
6:13 pm - 11:51 amIAD  Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl
18h 38m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
$182Frontier
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
2:30 pm - 5:37 pmORD  Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl
2h 07mnonstop
United Airlines Logo
8:20 am - 9:38 amIAD  Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl
2h 18mnonstop
$184United Airlines
Wed, Sep 9 - Fri, Sep 11
United Airlines Logo
12:55 pm - 4:01 pmORD  Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl
2h 06mnonstop
United Airlines Logo
10:27 pm - 11:40 pmIAD  Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl
2h 13mnonstop
$184United Airlines
Wed, Sep 9 - Fri, Sep 11
United Airlines Logo
6:15 pm - 9:20 pmORD  Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl
2h 05mnonstop
United Airlines Logo
3:15 pm - 4:29 pmIAD  Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl
2h 14mnonstop
$184United Airlines
Sat, Sep 12 - Wed, Sep 16
Multiple Airlines Logo
7:11 am - 6:33 pmORD  Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl
10h 22m2 stops Fort Lauderdale Tampa
Multiple Airlines Logo
6:13 pm - 2:45 pmIAD  Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl
21h 32m1 stop Fort Lauderdale
$188Multiple Airlines
Sat, Sep 12 - Mon, Sep 14
Multiple Airlines Logo
7:11 am - 6:33 pmORD  Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl
10h 22m2 stops Fort Lauderdale Tampa
Multiple Airlines Logo
6:13 pm - 3:20 pmIAD  Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl
22h 07m1 stop Fort Lauderdale
$189Multiple Airlines
Sat, Sep 12 - Tue, Sep 15
Multiple Airlines Logo
7:11 am - 6:33 pmORD  Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl
10h 22m2 stops Fort Lauderdale Tampa
Multiple Airlines Logo
7:50 am - 6:23 pmIAD  Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl
11h 33m1 stop Atlanta Hartsfield-Jackson
$192Multiple Airlines
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Dulles Intl flights

Get data-powered insights and trends into flights from O'Hare Intl to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport departing in September.

Flight prices are below average for this route right now.

Flights to Washington, D.C. Dulles Intl Airport from Chicago O'Hare Intl Airport usually cost between $205 and $521 in September.
The lowest price found in the past 5 days was $181 on Frontier (Sep 25-Oct 2).

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Washington Dulles Airport?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

For Chicago O'Hare Airport to Washington Dulles Airport, Friday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Washington Dulles Airport back to Chicago O'Hare Airport, the best deals are generally found on Thursday, with Monday being the most expensive.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport is September, where tickets cost $299 (return) on average. On the other hand, the most expensive months are July and February, where the average cost of round-trip tickets is $423 and $414 respectively.

Can I save money by flying with a layover from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $385, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport, you should book around 4 weeks before departure, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

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Expert advice

Expert advice for your flight from O'Hare Intl to Dulles Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on ORD and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

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Good to know

Low season

February

Cheapest flight

$89
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Chicago O'Hare Airport to Washington Dulles Airport

When to book flights from O'Hare Intl to Dulles Intl

Are your dates flexible? Find out the best times to travel from O'Hare Intl to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago O'Hare Airport to Washington Dulles Airport flights

  • Can I fly with kids from Chicago O’Hare Airport to Washington Dulles Airport?

    Yes, you can fly with kids from Chicago O'Hare Airport to Washington Dulles Airport. United Airlines is a suitable choice, offering kid-friendly amenities like in-flight entertainment, kid's meals, and pre-boarding for families. United ensures a pleasant and family-friendly travel experience for you and your children on this route.

  • What is the best way to connect from Washington Dulles Airport to downtown Washington?

    The most efficient way to connect from Washington Dulles Airport to downtown Washington is to take the Silver Line Express Bus to the Wiehle-Reston East Metro station. From there, you can board the Silver Line train, which provides a direct route to downtown Washington, D.C., allowing for a convenient and hassle-free commute.

  • Can I purchase an economy ticket and then upgrade to first class on flights from Chicago O’Hare Airport (ORD) to Washington Dulles Airport (IAD)?

    Yes, you can upgrade from economy to first class on flights from O'Hare International Airport (ORD) to Washington Dulles International Airport (IAD) with United Airlines. United offers MileagePlus members the option to use miles or cash to upgrade their tickets for a more luxurious travel experience in first class, subject to availability.

  • What are the layover options for flights from Chicago O’Hare Airport to Washington Dulles Airport?

    For flights from Chicago O'Hare Airport (ORD) to Washington Dulles Airport (IAD), common layover options include Charlotte Douglas International Airport (CLT) and Philadelphia International Airport (PHL). These airports offer connecting flights and various amenities to ensure a seamless journey between the two destinations.

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

    In the last 5 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport was $89 for a one-way ticket and $181 for a round-trip.

  • Do I need a passport to fly between Chicago O'Hare Airport and Washington Dulles Airport?

    No

  • Which airlines offer Wi-Fi service onboard planes from Chicago O'Hare Airport to Washington Dulles Airport?

    American Airlines, Iberia, Finnair, and British Airways offer inflight Wi-Fi service on the Chicago O'Hare Airport to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to Washington Dulles Airport?

    The Boeing 737-900 is the aircraft model that flies most regularly on the Chicago O'Hare Airport to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Chicago O'Hare Airport to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Chicago O'Hare Airport and Washington Dulles Airport.

  • On which days can I fly direct from Chicago O'Hare Airport to Washington Dulles Airport?

    There are nonstop flights from Chicago O'Hare Airport to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Chicago to Washington, D.C., United Airlines or Frontier?

    The two airlines most popular with KAYAK users for flights from Chicago to Washington, D.C. are United Airlines and Frontier. With an average price for the route of $361 and an overall rating of 7.4, United Airlines is the most popular choice. Frontier is also a great choice for the route, with an average price of $187 and an overall rating of 5.6.

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago O'Hare Airport to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Chicago O'Hare Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago O'Hare Airport to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $254 or less one-way and $390 or less round-trip.
  • If you want to connect to your flight from Chicago O’Hare Airport (ORD) to Washington Dulles Airport (IAD) while in downtown Chicago, you need not worry. The most efficient way is to use the CTA Blue Line which takes about 15 minutes to reach the airport. You may board at any downtown station at any time of the day. If in a rush, you can consider using the taxis or Towncar located in the city center.
  • United Airlines offers special services on flights from O'Hare International Airport (ORD) to Washington Dulles International Airport (IAD). United offers options for passengers with disabilities or those in need of extra assistance, including wheelchair services, priority boarding, and accessible seating. Their dedicated staff ensures a comfortable and accommodating travel experience for all passengers.
  • If you need to fly to Washington from Chicago any time of the day, consider flying with American Airlines, for it has established a major hub at O'Hare International Airport (ORD) for flights to Washington Dulles International Airport (IAD). American Airlines provides convenient connections, a range of flight options, and a comprehensive network, making it a prominent choice for travelers between ORD and IAD.
  • Passengers with luggage should consider flying with United Airlines, a suitable choice for flights from O'Hare International Airport to Washington Dulles International Airport. United Airlines allows carry-ons with dimensions of up to 22 x 14 x 9 inches and a weight limit of 35 lb. Their policy ensures convenient and efficient travel, accommodating passengers' essentials while adhering to size and weight limits.
  • Pet lovers should consider flying with American Airlines on flights from O'Hare International Airport to Washington Dulles International Airport. Their carry-on pet container must not exceed 19 x 13 x 9 inches, and the combined weight of the pet and container should not exceed 20 lb. This airline ensures a comfortable journey for your furry companion.

Prefer to fly direct from Chicago O'Hare Airport to Washington Dulles Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago O'Hare Intl to Washington, D.C. Dulles Intl.
Find which airlines fly direct from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Chicago O'Hare Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Everything you need to know for your flight from O'Hare Intl to Dulles Intl

Information on your arrival and departure airports

Chicago O'Hare Airport (ORD)
Dulles Intl (IAD)