Find out what a flight from Washington to Saint Louis might cost

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

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Try shifting your departure forward or backward by a day to find better options. If you’re looking for a good deal, consider flying outside peak hours as well.

Are there alternative airports near Washington and Saint Louis?

The two cities are about 685 mi apart. Looking beyond the main airport might reveal better options.

• Airports in Washington: There are 3 airports in Washington - Dulles international, Ronald Reagan, Washington International.
• Airports in Saint Louis: Only Saint Louis - Lambert is active at the moment.

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

Smart ways to search flights from Washington to Saint Louis

Use Jetcost to view tailored results based on what you care about — time, duration, number of stops, or even your preferred booking agency. Results include carriers like American, Delta, United, and more.

Other popular destinations

Flying to United States? Other travelers also searched: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Prefer non-stop flights? Just activate the filter to skip unnecessary layovers. If your dates are flexible, you can also explore different departure and return combinations to find the best fit.