AirHint found the following cheapest return flights from Pittsburgh (PIT) to London (STN) in March 2026 (see full year).

Return flights

11 Mar - 18 Mar	Spirit Airlines
18 Mar - 25 Mar	Spirit Airlines
04 Mar - 06 Mar	Spirit Airlines
01 Mar - 04 Mar	Air Canada
31 Mar - 10 Apr	Spirit Airlines
06 Mar - 06 Apr	Aer Lingus
27 Mar - 03 Apr	Breeze Airways
13 Mar - 21 Mar	Aer Lingus

Also check the deals for one-way flights from Pittsburgh to London in March.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Pittsburgh to London in March from $708

Return flights