Cheapest return flights from Portland to London in March from 573€

Best time to book flights for Portland (PDX) to London (LGW) flights at AirHint

AirHint found the following cheapest return flights from Portland (PDX) to London (LGW) in March 2025 (see full year).

Return flights

10 Mar - 14 Mar Spirit Airlines
11 Mar - 19 Mar Spirit Airlines
25 Mar - 02 Apr Spirit Airlines
05 Mar - 14 Mar Spirit Airlines
25 Mar - 31 Mar Spirit Airlines
18 Mar - 23 Mar Spirit Airlines
06 Mar - 12 Mar Spirit Airlines
22 Mar - 29 Mar Frontier Airlines
20 Mar - 27 Mar Spirit Airlines
30 Mar - 04 Apr Alaska Airlines
23 Mar - 29 Mar Spirit Airlines
21 Mar - 28 Mar Aer Lingus

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

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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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