Cheap flights from Dulles to Saint Louis

Direct flight: 1,119 km, ~1h 19m from Dulles (IAD) to Saint Louis (STL).

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Live fares · IAD → STL

Frequently asked questions

  • How long is the flight from Dulles to Saint Louis?

    Direct flights from IAD to STL cover approximately 1,119 km (695 miles), with an estimated flight time of 1h 19m. Operating airlines: UA.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.

Full route page: IAD → STL Cheapest month to fly to Saint Louis All flights from Dulles All flights to Saint Louis Flights to USA Visa-free with USA passport UA routes