Cheapest return flights from Portland to London in March from 589€

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

11 Mar - 19 Mar Spirit Airlines
04 Mar - 06 Mar Spirit Airlines
25 Mar - 02 Apr Spirit Airlines
04 Mar - 12 Mar Spirit Airlines
01 Mar - 25 Mar Spirit Airlines
02 Mar - 25 Mar Spirit Airlines
25 Mar - 15 Apr Spirit Airlines
09 Mar - 16 Mar Alaska Airlines
05 Mar - 07 Mar Alaska Airlines
07 Mar - 13 Mar Alaska Airlines
30 Mar - 07 Apr Alaska Airlines
30 Mar - 05 Apr Frontier Airlines
08 Mar - 15 Mar Frontier Airlines
31 Mar - 05 Apr Frontier Airlines
29 Mar - 05 Apr Frontier Airlines
19 Mar - 28 Mar Alaska Airlines
29 Mar - 06 Apr Frontier Airlines

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

Skyscanner

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.

Book a cheap hotel in London

Cheap car rent in London