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Due to coronavirus (COVID-19) travel advisories, some destinations may be unavailable for certain dates. Find out more.

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Amazing IAD to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $273 round trip and $141 one way. Prices and availability subject to change. Additional terms may apply.

Best Los Angeles - Ontario Intl. Flight and Hotel Packages

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FAQs about flights from Washington Dulles Intl. Airport (IAD) to Los Angeles - Ontario Intl. Airport (ONT)

Can I catch a flight from Washington, DC Airport (IAD-Washington Dulles Intl.) to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) right now?

For any present Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) quarantine requirements and travel advice, go to the Covid-19 Travel Advisor. Look before you book your flight, so you don't get caught out en route.

Are there direct flights from IAD to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.)?

If you need to get as quickly as possible from Washington, DC Airport (IAD-Washington Dulles Intl.) to ONT, look up Qatar Airways, Alaska Airlines and Delta. No airlines offer direct flights between the two locations, so you'll have to make at least one stopover.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to ONT, please visit our Customer Service Portal.

How long is the flight from Washington, DC Airport (IAD-Washington Dulles Intl.) to Los Angeles - Ontario Intl. Airport (ONT)?

The flight between Dulles Intl. Airport and ONT is approximately 7 hours and 8 minutes. Make your trip enjoyable by downloading a few shows on your phone or laptop and enjoying them with your seat reclined.

What is the flight distance from Washington, DC Airport (IAD-Washington Dulles Intl.) to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.)?

The distance from Washington Dulles Intl. Airport (IAD) to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) is 2,610 mi. Apart from loading your devices with more movies, it'll be smart to pack some noise-canceling earbuds and a sweater too.

What airlines fly from IAD to Los Angeles - Ontario Intl. Airport (ONT)?

You'll have to make at least one stopover if you're flying from Washington Dulles Intl. Airport (IAD) to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.), as no airlines operate direct flights on this route. Make the most of your layover time by freshening up, giving your legs a stretch and indulging in a little retail therapy.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2020, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

Washington Dulles Intl. to Los Angeles - Ontario Intl. Flight FAQ

Traveling FromWashington Dulles Intl.
Traveling ToLos Angeles - Ontario Intl.
Shortest Flight Time hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price$273

Route Info

Flight path for flights from Washington Dulles International Airport to LA/Ontario International Airport.


Distance:
2,372.00 miles


Popular Flight Routes from Washington (IAD)

Travelers at IAD love to visit these top cities. Roam to the top destinations from Washington (IAD) today with the cheap prices from Travelocity!

Popular Flight Routes from Ontario (ONT)

Travelers at ONT love to visit these top cities. Roam to the top destinations from Ontario(ONT) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.