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Dulles Intl

$87+ Cheap flights from O'Hare Intl (ORD) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IAD
Apr 21 — Apr 281
Mon 4/21
Mon 4/28
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Washington, D.C. Dulles Intl are usually found in July or August, booked 90 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from O'Hare Intl to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$179
(Trip.com)

One-way from

$87
(CheapOair)

Popular in

December

Cheapest in

July

Average price

$302

Good round-trip deal

$342 or less

Good one-way deal

$149 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Washington, D.C. Dulles Intl flights.
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From Chicago O'Hare Intl to Washington, D.C. Dulles Intl
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One-way flight from Chicago O'Hare Intl to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Washington, D.C. Dulles Intl.
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Find flight deals from O'Hare Intl to Dulles Intl

Cheapest flights from O'Hare Intl to Dulles Intl
Explore the most affordable flight options available from O'Hare Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 16, 2025.

This Trip.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/169:00 amORD - IAD
1 stop24h 54mFrontier
Mon 5/193:32 pmIAD - ORD
1 stop8h 39mFrontier
Deal found 4/15$179
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/109:05 pmORD - IAD
Nonstop1h 54mUnited Airlines
Sun 5/186:22 amIAD - ORD
Nonstop2h 12mUnited Airlines
Deal found 4/15$195
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/104:25 pmORD - IAD
1 stop6h 10mDelta
Sun 5/116:00 amIAD - ORD
1 stop4h 51mDelta
Deal found 4/15$197
This Mytrip deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/155:26 pmORD - IAD
1 stop26h 31mMultiple Airlines
Tue 5/205:40 pmIAD - ORD
3 stops30h 24mMultiple Airlines
Deal found 4/14$279
This American Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/15:00 amORD - IAD
1 stop7h 22mAmerican Airlines
Tue 6/38:02 pmIAD - ORD
1 stop5h 09mAmerican Airlines
Deal found 4/15$320

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 16, 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

O'Hare Intl

Fly to

Dulles Intl

Route

Depart

Return

Price

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Fri 5/16

9:00 am-10:54 am

1 stop24h 54m

Washington, D.C. Dulles Intl

Mon 5/19

3:32 pm-11:11 pm

1 stop8h 39m

$179

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Sat 5/10

8:50 am-11:49 am

Nonstop1h 59m

Washington, D.C. Dulles Intl

Sat 5/17

10:10 pm-11:18 pm

Nonstop2h 08m

$195

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Sat 5/10

7:05 am-2:37 pm

1 stop6h 32m

Washington, D.C. Dulles Intl

Sun 5/11

6:00 am-9:51 am

1 stop4h 51m

$197

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 5/15

5:26 pm-8:57 pm

1 stop26h 31m

Washington, D.C. Dulles Intl

Tue 5/20

5:40 pm-11:04 pm

3 stops30h 24m

$279

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Sun 6/1

5:00 am-1:22 pm

1 stop7h 22m

Washington, D.C. Dulles Intl

Tue 6/3

8:02 pm-12:11 am

1 stop5h 09m

$320

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Fri 5/9

9:00 am-10:54 am

1 stop24h 54m

$87

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Fri 5/30

5:20 pm-2:44 pm

1 stop20h 24m

$88

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Tue 7/1

5:05 pm-10:55 pm

1 stop4h 50m

$99

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Sat 5/31

9:31 pm-12:30 am

Nonstop1h 59m

$104

ChicagoWashington, D.C.

ORD - IAD

ORDIAD

Chicago O'Hare Intl

Thu 5/22

7:48 pm-8:17 pm

1 stop23h 29m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 12 results
1
2

Compare providers for flights from O'Hare Intl to Dulles Intl

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 O'Hare Intl to Dulles Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust 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 O'Hare Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 O'Hare Intl Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport trip
Airlines
Ethiopian Air

Economy Class offers 32-inch pitch and 17-inch width seats, enhancing comfort.


ShebaSkyConnect provides Wi-Fi on A350, B777, and most B787 aircraft.

Read more about Ethiopian Airby Paul Rubio
United Airlines

Basic Economy allows no carry-on bags, except for MileagePlus members or credit card holders.


United First includes 2 free checked bags and priority perks on the ground.

Read more about United Airlinesby Harriet Baskas
Airports
ORD

For a quick departure, use the free shuttle train between terminals at ORD. It operates outside security, connecting all terminals efficiently.

Read more about ORDby Ramsey Qubein
IAD

The Washington Metro Silver line reaches IAD in under 40 minutes, offering a cheap and convenient way to get to the city.

Read more about IADby Ramsey Qubein
Our travel experts
Paul Rubio

Paul Rubio

Expert on Ethiopian Air

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD and IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from O'Hare Intl to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Dulles Intl. Price data was last updated on April 11, 2025.

To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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 ORD to IAD?

Find hourly flight availability from O'Hare Intl to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 16, 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport in the morning. Doing so could potentially save you 60% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Dulles Intl. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from O'Hare Intl to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 16, 2025.

The most flights from ORD to IAD are scheduled on a Wednesday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

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

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated April 16, 2025.
Get a feel of what it's like to fly with Delta, Avelo Airlines and United Airlines from Chicago to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,916 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Avelo Airlines
7.5
Good
Delta
8.0
Very good
7,916 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,665 reviews
Delta
8.0
Very good
7,916 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,916 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Sun Country Air
6.9
Okay
349 reviews
Delta
8.0
Very good
7,916 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on Frontier is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $179. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $195 and $197, respectively. Frontier is currently priced 41% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $87. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport for a low price.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport consider choosing Air China (89%), Ethiopian Air (86%) or Austrian Airlines (84%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport? While on average our users pay $1,158, our data indicates the cheapest price to be $108. The most popular route (Chicago O'Hare Intl - Washington, D.C. Dulles Intl), is priced around $161.

  • Can I find deals for flights from O'Hare Intl to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Dulles Intl.

  • Can I find deals for business class flights from O'Hare Intl to Dulles Intl?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Dulles Intl 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 O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Chicago O'Hare Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Tysons
Springfield
Woodbridge
Rockville
Fredericksburg
Gaithersburg
Silver Spring
Linthicum Heights
Falls Church
Laurel
Easton
Herndon
Sterling
Bowie
Gettysburg
National Harbor
Oxon Hill

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Alternative routes for O'Hare Intl to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Reagan-National flights
O'Hare Intl to Baltimore flights
Midway to Dulles Intl flights
Midway to Reagan-National flights
Midway to Baltimore flights

Top 4 airlines flying from O'Hare Intl to Dulles Intl

Discover the top 4 airlines that operate flights from O'Hare Intl to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$191FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$109Average$332FlexibilityNo cancel feeOn-time71%
DeltaCheapest$176Average$248FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$180Average$303FlexibilityNo cancel feeOn-time69%

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