What’s the cost of 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.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Is there more than one airport in Washington or Ontario?

Even short-haul routes can benefit from considering secondary airports. It may open up more flight times or cheaper fares.

• Airports in Washington: Washington has 3 airports - Dulles international, Ronald Reagan, Washington International.
• Airports in Ontario: Ontario is the only airport in operation.

Airports with more daily flights offer more flexibility if plans change or delays occur. If you’re flexible, consider airports near Ontario as well.

Find flights from Washington Dulles to Ontario that suit your schedule

Use Jetcost to sort and filter results based on your preferred flight time, number of stops, price range, or airline. View deals from the best airlines and travel agencies.

Other popular destinations

Interested in United States? These cities are also in demand: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Connecting flights can be cheaper but often mean longer layovers. You can easily select either direct or connecting flights with a single click using the filters.