Cheap flights from St. Louis to Merrimack Valley

View AU$305 flight on Mon, 9 Feb. 2026Opens in a new window

Popular airlines from St. Louis to Merrimack Valley

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from St. Louis (STL) to Merrimack Valley (BOS)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from St. Louis (STL) to Manchester (MHT)

August is typically the cheapest month to fly

From AU$288 - AU$1,095 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.