Cheap flights from Saint Louis to Dulles

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

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Live fares · STL → IAD

Frequently asked questions

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

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