How much is a flight from Washington Dulles to Ontario?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Washington and Ontario.

Pick a travel date to see today’s available fares.

Fares change often — checking several times throughout the week can make a big difference. Booking in advance often means access to lower prices for the Washington Dulles - Ontario route.

Flying between Washington and Ontario? Consider these airports

Depending on your destination and where you’re starting from, it might make sense to look beyond the main hubs.

• Airports in Washington: Washington has 3 airports - Dulles international, Ronald Reagan, Washington International.
• Airports in Ontario: The only active option is Ontario.

Check if your destination airport has a rail link — it can make getting around easier. Jetcost lets you view options from all Washington airports in a single search.

Adjust your flight filters for Washington Dulles – Ontario

Jetcost gives you tools to search smarter. Pick your ideal price range, airline, departure time, and flight type — then compare offers from the best travel agencies and carriers.

Other popular destinations

Planning a trip to United States? These cities are popular too: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.