What’s the cost of a flight from Ottawa to Washington Dulles?

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

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.

Are there alternative airports near Ottawa and Washington?

The two cities are about 723 km apart. Looking beyond the main airport might reveal better options.

• Airports in Ottawa: Ottawa - McDonald Cartier is the only airport in operation.
• Airports in Washington: Washington is served by 3 airports - Dulles international, Ronald Reagan, Washington International.

Many smaller airports are connected by direct buses or shuttles, often at low cost. If Washington has more than one airport, you can pick the most convenient for your destination.

Adjust your flight filters for Ottawa – Washington Dulles

Jetcost gives you tools to search smarter. Pick your ideal price range, airline, departure time, and flight type — then compare offers from agencies like Expedia, eDreams, and more.

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.