$144 Cheap Flights from Ontario (ONT) to Washington (IAD)

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Cheap Flights from Ontario to Washington (ONT-IAD)

Prices were available within the past 7 days and start at $144 for one-way flights and $287 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
American Airlines
Delta
United
Delta
American Airlines
American Airlines
American Airlines
Delta
American Airlines
Flights from Ontario (ONT) to Washington (IAD)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$287
Distance
2236 mi

Ontario to Washington Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Ontario to Washington offer the perfect respite. Not only does exploring Washington provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Ontario to Washington may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from ONT to IAD today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Washington are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Washington more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Washington is $144 now!

Frequently asked questions

How much is a one-way flight from Ontario Airport to IAD?
Get ready to score a great deal, because Ontario flights to Washington start from only $144. This info is based on the cheapest fare found on Expedia for this route with a departure date in the next three months. This airfare is for an American Airlines flight, leaving Los Angeles - Ontario Intl. Airport (ONT) on June 5 2024 and landing at IAD. This price was last updated on May 17 2024 and has not changed since.
Is it cheaper to buy a plane ticket from ONT to Washington Dulles Intl. Airport (IAD) last minute?
Being the spontaneous type is a rewarding way to travel around, but it isn’t necessarily the ideal way to find a bargain airfare. Think about booking your Ontario Airport to Washington Dulles Intl. Airport (IAD) journey in advance rather than leaving it till the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. You can unleash your spontaneous side when you arrive in Washington Dulles Intl. Airport (IAD)!
What is the cheapest airline flying from Ontario Airport to Dulles Intl. Airport in the next 90 days?
With plane tickets starting at $144 for a flight from Ontario to Washington, American Airlines is the cheapest airline found on Expedia. This price is based on airfares found on Expedia with a departure date within the next 90 days and was last updated on May 17 2024 and has not changed since. The flight leaves Ontario Airport on June 5 2024 and lands at Washington Dulles Intl. Airport (IAD).
What's the cheapest price for a flight from ONT to Washington Dulles Intl. Airport (IAD) next month?
The best price for a flight from Ontario to Washington over the next month is $144. If you’re planning a trip soon, lock in this fare before it’s gone. This price was found after looking through all available flights on Expedia departing within the next 30 days. This fare is for a one-way American Airlines flight setting off from ONT on June 5 2024 and getting into Washington Dulles Intl. Airport (IAD). The price was last updated on May 17 2024 and has not changed since.
What airports do you fly into for Sterling from Los Angeles?
From Los Angeles, you can connect to Sterling through Washington Dulles Intl. Airport (IAD), Ronald Reagan Washington National Airport (DCA) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Find out which terminal is more convenient for you before you make a decision. If you decide on Washington Dulles Intl. Airport (IAD), it’s roughly 4 mi south of the center of the city. Use the dollars you save when booking your journey with Expedia to check out the city’s top sights, such as Reston Town Center and One Loudoun.
Can I change the date of my flight from Ontario Airport to IAD?
Plans can change, so Expedia is here to help make things easy. First, access your Ontario Airport to IAD itinerary through the Expedia Trips portal and read the fare conditions and rules about what sorts of changes are allowed. If you purchased your ticket in the last 24 hours, some carriers will let you cancel for free and organize new flights. If you booked your fare more than 24 hours ago, get in touch with us through our Customer Service portal to find out what your options are.
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