Flight prices from Washington National to Saint Louis

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

The lowest fare seen in the past 15 days was $100.

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 serve Washington and Saint Louis?

When planning a trip of about 717 mi, it's a good idea to check flights from surrounding airports too.

• Airports in Washington: Washington is connected to 3 airports - Dulles international, Ronald Reagan, Washington International.
• Airports in Saint Louis: The only active airport in Saint Louis is Saint Louis - Lambert.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

Filter and compare flights from Washington National to Saint Louis

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Other popular destinations

Want more ideas for your trip to United States? Check these: Atlanta, Los Angeles, Miami, New York City, Orlando.

Advanced filters help you skip long layovers or inconvenient times. The “airlines” filter is handy if you want to collect miles or prefer a certain onboard experience.