¥23,600 Cheap Flights from Ontario (ONT) to Washington (IAD)

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Washington Dulles Intl. Airport (IAD)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards

Cheap Flights from Ontario to Washington (ONT-IAD)

Prices were available within the past 7 days and start at ¥23,600 for one-way flights and ¥47,620 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Delta
Delta
Delta
Delta
Delta
Delta
United
Delta
Delta

Find the cheapest month to fly from Ontario (ONT) to Washington (IAD)

September is typically the cheapest month to fly

From ¥27,494 - ¥109,356 per traveler.

Frequently asked questions

How much is a flight from ONT to Dulles Intl. Airport?
If you're planning on traveling from Ontario Airport to Dulles Intl. Airport, round-trip journeys start from ¥47,620. This price is based on airfares available within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal pass you by. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Ontario Airport to Dulles Intl. Airport?
Most flights can be canceled online, but whether or not you incur a fee varies between airlines. If you do need to cancel your break, follow the instructions in the Customer Service Portal.
How do I find cheap flights from ONT to Washington Dulles Intl. Airport (IAD) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for ONT to Dulles Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from ONT to Washington Dulles Intl. Airport (IAD)?
The flight time from Ontario Airport to Washington Dulles Intl. Airport (IAD) is roughly 7 hours and 2 minutes. Grab your headphones, listen to your favorite podcast and your time in the air will whiz by.
How far is the flight from Ontario Airport to Dulles Intl. Airport?
Around 3,600 kilometers separates Ontario and Chantilly, so pack something to keep you occupied for a few hours. That action-packed novel you haven't had time to start will be just the ticket.
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to Dulles Intl. Airport?
Unfortunately, there are no airlines that directly fly between ONT and Washington Dulles Intl. Airport (IAD). You'll have to book a flight with at least one stop.
Are ONT to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to nab an awesome last-minute deal from Ontario Airport to IAD, but there's no guarantee. As many airlines publish prices up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you see a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can feel confident knowing you're always seeing the latest offers.

Travel information

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Delta
Roundtrip price
¥47,620
Distance
3578 km

Book with confidence

Book with confidence

Explore a world of travel with Expedia

Explore a world of travel with Expedia

Washington nearby Airports

Washington

Baltimore

Ontario nearby Airports

Orange County

Burbank

*Available to Expedia members.