Cheap flights from St. Louis to Southwest Pennsylvania

Popular airlines from St. Louis to Southwest Pennsylvania

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Find the cheapest month to fly from St. Louis (STL) to Pittsburgh (PIT)

September is typically the cheapest month to fly

From AU$232 - AU$1,072 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.