Cheap flights from Saint Louis to Washington
Compare hundreds of airlines Saint Louis–Washington
About this route
Compare flights from Saint Louis to Washington, a about 1,141 km route (around 1h 56m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as American Airlines, United Airlines, Silk Avia operate this route.
Airlines on this route
FAQ
What's the cheapest month to fly Saint Louis to Washington?
Prices vary by season; use the price calendar to find the cheapest month.
How long is the flight from Saint Louis to Washington?
A nonstop flight takes about 1h 56m and covers around 1,141 km. Connecting itineraries take longer.
Are there direct flights from Saint Louis to Washington?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Saint Louis to Washington?
American Airlines, United Airlines, Silk Avia, Southwest Airlines operate this route, among others. Compare them all in the results.
When should I book Saint Louis–Washington flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.