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

Consider Sun Country Air (100%), Ethiopian Air (85%) or Avianca (82%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport.

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

Before booking your flight from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport check out the most popular airlines for this route: American Airlines, Delta or Frontier.

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

Travelers have found that booking a Thursday departure is the best way to save up to 29% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Chicago O'Hare 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 Washington, D.C. Dulles Intl Airport-Chicago O'Hare Intl Airport 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 Dulles Intl to O'Hare Intl that include hotel bookings?

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

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

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

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

Yes. Cheapflights offers flight deals from Dulles Intl to O'Hare 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.

$81+ Flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport

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Find cheap flights from Dulles Intl to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Chicago O'Hare Intl are usually found in September or August, booked 87 days in advance, depart on a Friday or Wednesday and return on a Friday

Cheap flight deals from Dulles Intl to O'Hare Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$177 (Trip.com)
One-way from	$81 (United Airlines)
Popular in	May
Cheapest in	September
Average price	$336
Good round-trip deal	$300 or less
Good one-way deal	$180 or less

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Chicago O'Hare Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Chicago O'Hare Intl flights.

Search Deals

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

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Chicago O'Hare Intl

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Chicago O'Hare Intl.

Search Deals

Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Chicago O'Hare Intl.

Search Deals

Find flight deals from Dulles Intl to O'Hare Intl

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

Tue 5/611:47 amIAD - ORD

1 stop5h 54mFrontier

Fri 5/99:00 amORD - IAD

1 stop24h 54mFrontier

Deal found 4/15

$177

Wed 5/281:20 pmIAD - ORD

Nonstop2h 13mUnited Airlines

Thu 5/298:52 amORD - IAD

Nonstop2h 03mUnited Airlines

Deal found 4/15

$179

Sat 5/246:17 pmIAD - ORD

1 stop3h 43mDelta

Sun 5/256:24 amORD - IAD

1 stop6h 02mDelta

Deal found 4/15

$197

Sun 5/412:49 pmIAD - ORD

1 stop7h 20mMultiple Airlines

Mon 5/56:20 amORD - IAD

1 stop7h 03mMultiple Airlines

Deal found 4/15

$248

Mon 5/58:02 pmIAD - ORD

1 stop5h 09mAmerican Airlines

Sat 5/106:35 pmORD - IAD

1 stop4h 27mAmerican Airlines

Deal found 4/16

$274

Best flights from Dulles Intl to O'Hare Intl
Discover carefully curated flight deals from Dulles Intl to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 16, 2025.

Tue 5/611:47 amIAD - ORD

1 stop5h 54mFrontier

Fri 5/99:00 amORD - IAD

1 stop24h 54mFrontier

Deal found 4/15

$177

Wed 5/281:20 pmIAD - ORD

Nonstop2h 13mUnited Airlines

Thu 5/298:52 amORD - IAD

Nonstop2h 03mUnited Airlines

Deal found 4/15

$179

Sat 5/246:17 pmIAD - ORD

1 stop3h 43mDelta

Sun 5/256:24 amORD - IAD

1 stop6h 02mDelta

Deal found 4/15

$197

Sun 5/412:49 pmIAD - ORD

1 stop7h 20mMultiple Airlines

Mon 5/56:20 amORD - IAD

1 stop7h 03mMultiple Airlines

Deal found 4/15

$248

Mon 5/55:26 pmIAD - ORD

1 stop5h 17mAmerican Airlines

Wed 5/710:34 amORD - IAD

1 stop5h 22mAmerican Airlines

Deal found 4/16

$274

Last-minute flights from Dulles Intl to O'Hare Intl
Discover last-minute flight deals from Dulles Intl to O'Hare Intl. Data last updated April 16, 2025 and is based on user searches.

Wed 4/232:12 pmIAD - ORD

1 stop4h 28mAmerican Airlines

Mon 4/286:30 pmORD - IAD

1 stop4h 26mAmerican Airlines

Deal found 4/16

$357

Wed 4/238:25 amIAD - ORD

3 stops23h 38mMultiple Airlines

Thu 4/247:15 pmORD - IAD

1 stop16h 08mMultiple Airlines

Deal found 4/14

$405

Wed 4/236:30 amIAD - ORD

1 stop11h 30mAlaska Airlines

Sat 4/269:00 amORD - IAD

1 stop10h 43mAlaska Airlines

Deal found 4/15

$1,115

Fri 4/2510:19 pmIAD - ORD

1 stop10h 46mUnited Airlines

Sat 4/2611:15 amORD - IAD

Nonstop1h 56mUnited Airlines

Deal found 4/15

$279

Fri 4/251:56 pmIAD - ORD

1 stop6h 04mDelta

Wed 4/305:30 amORD - IAD

1 stop4h 53mDelta

Deal found 4/15

$509

Sat 4/265:35 pmIAD - ORD

1 stop7h 01mFrontier

Sat 5/310:22 amORD - IAD

1 stop5h 12mFrontier

Deal found 4/15

$178

Tue 4/297:50 amIAD - ORD

1 stop9h 55mSouthwest

Thu 5/17:00 amORD - IAD

1 stop9h 55mSouthwest

Deal found 4/15

$385

Sun 5/412:49 pmIAD - ORD

1 stop7h 20mMultiple Airlines

Mon 5/56:20 amORD - IAD

1 stop7h 03mMultiple Airlines

Deal found 4/15

$248

Tue 5/611:47 amIAD - ORD

1 stop5h 54mFrontier

Fri 5/99:00 amORD - IAD

1 stop24h 54mFrontier

Deal found 4/15

$177

Tue 5/65:02 amIAD - ORD

1 stop6h 39mAmerican Airlines

Thu 5/85:00 amORD - IAD

1 stop7h 22mAmerican Airlines

Deal found 4/16

$262

Sat 5/246:17 pmIAD - ORD

1 stop3h 43mDelta

Sun 5/256:24 amORD - IAD

1 stop6h 02mDelta

Deal found 4/15

$197

Wed 5/281:20 pmIAD - ORD

Nonstop2h 13mUnited Airlines

Thu 5/298:52 amORD - IAD

Nonstop2h 03mUnited Airlines

Deal found 4/15

$179

One-way flights from Dulles Intl to O'Hare Intl
Search for one-way flight options from Dulles Intl to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated April 16, 2025.

Tue 7/16:35 amIAD - ORD

Nonstop2h 14mUnited Airlines

Deal found 4/16

$81

Mon 5/123:32 pmIAD - ORD

1 stop8h 39mFrontier

Deal found 4/15

$86

Fri 5/305:40 pmIAD - ORD

1 stop7h 18mDelta

Deal found 4/15

$109

Sat 7/55:39 pmIAD - ORD

1 stop4h 46mAmerican Airlines

Deal found 4/15

$126

Sun 6/111:54 amIAD - ORD

2 stops21h 56mMultiple Airlines

Deal found 4/16

$151

Thu 6/1212:40 pmIAD - ORD

1 stop7h 31mSun Country Air

Deal found 4/15

$160

Sat 5/317:00 amIAD - ORD

2 stops17h 56mAlaska Airlines

Deal found 4/16

$273

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Tue 5/6

11:47 am-4:41 pm

1 stop5h 54m

Chicago O'Hare Intl

Fri 5/9

9:00 am-10:54 am

1 stop24h 54m

$177

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Wed 5/28

6:48 am-8:02 am

Nonstop2h 14m

Chicago O'Hare Intl

Fri 5/30

1:04 pm-4:09 pm

Nonstop2h 05m

$179

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Sat 5/24

6:17 pm-9:00 pm

1 stop3h 43m

Chicago O'Hare Intl

Sun 5/25

6:24 am-1:26 pm

1 stop6h 02m

$197

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Sun 5/4

12:49 pm-7:09 pm

1 stop7h 20m

Chicago O'Hare Intl

Mon 5/5

6:20 am-2:23 pm

1 stop7h 03m

$248

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Mon 5/5

5:26 pm-9:43 pm

1 stop5h 17m

Chicago O'Hare Intl

Wed 5/7

10:34 am-4:56 pm

1 stop5h 22m

$274

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Tue 7/1

10:19 pm-11:30 pm

Nonstop2h 11m

$81

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Mon 5/12

3:32 pm-11:11 pm

1 stop8h 39m

$86

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Sun 9/7

9:03 am-5:11 pm

1 stop9h 08m

$94

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Fri 5/30

5:40 pm-11:58 pm

1 stop7h 18m

$109

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Sat 7/5

5:39 pm-11:57 pm

1 stop7h 18m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 12 results

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

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to O'Hare Intl in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy3 stars	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 Washington, D.C. Dulles Intl Airport-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Chicago O'Hare 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 Washington, D.C. Dulles Intl Airport-Chicago O'Hare 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 Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport trip

Airports

IAD

Check-in at IAD can be crowded in the afternoon and evening. Arrive early to navigate the busy check-in area smoothly.

ORD

For a quick city transfer, take the 'L' train from ORD to downtown Chicago, avoiding traffic delays common with taxis and rideshares.

Our travel experts

Ramsey Qubein

Expert on ORD and IAD

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

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Dulles 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 Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport

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

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 IAD to ORD?

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport in the evening. By choosing this option you can save up to 45% on the cost of your flight, compared to a flight in the afternoon.

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

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

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

The most flights from IAD to ORD are scheduled on a Tuesday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in O'Hare Intl by month

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

If weather is an important factor for your trip to Chicago O'Hare 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing O'Hare Intl

Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Washington, D.C. to Chicago 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.

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,876 reviews

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,916 reviews

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,665 reviews

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Sun Country Air

6.9

Okay

349 reviews

Alaska Airlines

8.0

Very good

9,876 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport round-trip?
Frontier, at $177, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include United Airlines and Delta. Frontier is 47% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport one-way?
The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport are United Airlines ($81), Frontier ($86), and Delta ($109).
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport?
Consider Sun Country Air (100%), Ethiopian Air (85%) or Avianca (82%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport.
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport?
While on average a flight from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport is generally $784, our data shows the cheapest flight currently is $114. When looking at the most popular route, (Washington, D.C. Dulles Intl - Chicago O'Hare Intl), you can expect to pay $179 for that flight.
Can I find deals for flights from Dulles Intl to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on Dulles Intl to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to O'Hare Intl.
Can I find deals for business class flights from Dulles Intl to O'Hare Intl?
Yes. Cheapflights offers flight deals from Dulles Intl to O'Hare 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 Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 4 airlines flying from Dulles Intl to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$63	Average$118	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$176	Average$216	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$188	Average$333	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$364	Average$402	FlexibilityNo cancel fee	On-time71%

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$81+ Cheap flights from Dulles Intl (IAD) to O'Hare Intl (ORD)

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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to O'Hare Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Chicago O'Hare Intl are usually found in September or August, booked 87 days in advance, depart on a Friday or Wednesday and return on a Friday

Cheap flight deals from Dulles Intl to O'Hare Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Dulles Intl to O'Hare Intl

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

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

Cheapflights Fare Finder

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

Compare providers for flights from Dulles Intl to O'Hare 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 Dulles Intl to O'Hare Intl in April.

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

Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport trip

Airports

IAD

ORD

Our travel experts

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

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Dulles Intl with our price prediction graph.

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

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

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

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

What is the cheapest time of day to fly from IAD to ORD?

Find hourly flight availability from Dulles Intl to O'Hare 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.

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

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

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

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing O'Hare Intl

Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Washington, D.C. to Chicago 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

Find useful and relevant information for your journey from Dulles Intl to O'Hare 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 Washington, D.C. Dulles Intl Airport to Chicago O'Hare Intl Airport round-trip?

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

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

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Dulles Intl to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.

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

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