Cheap flights from Washington to Saint Louis
Compare hundreds of airlines Washington–Saint Louis
Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from Washington to Saint Louis, 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, Southwest Airlines operate this route.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly Washington to Saint Louis?
Prices vary by season; use the price calendar to find the cheapest month.
How long is the flight from Washington to Saint Louis?
A nonstop flight takes about 1h 56m and covers around 1,141 km. Connecting itineraries take longer.
Are there direct flights from Washington to Saint Louis?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Washington to Saint Louis?
American Airlines, United Airlines, Southwest Airlines operate this route, among others. Compare them all in the results.
When should I book Washington–Saint Louis 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.
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Washington → Saint Louis · Live fares from 100+ sites — free, with no hidden fees.