Flight prices from Washington Dulles to Saint Louis

There’s no fixed price — fares between Washington and Saint Louis can vary a lot by day or time.

Choose a date to explore the best fares now.

The lowest fares are often found with some flexibility in travel dates. If your plans are flexible, you’ll have a better chance of finding cheap flights.

Which airports are most convenient between Washington and Saint Louis?

Whether it’s cost or connection time, the right airport combination can make a difference.

• Airports in Washington: There are 3 airports in Washington - Dulles international, Ronald Reagan, Washington International.
• Airports in Saint Louis: Saint Louis - Lambert is the only functioning airport for now.

In some cases, flying into a secondary airport can also reduce transfer costs. Connections from multiple airports give you more flight options and airlines.

Adjust your flight filters for Washington Dulles – Saint Louis

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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.