Cheapest return flights from Portland to London in March from 659€

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

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

Return flights

25 Mar - 09 Apr Delta
18 Mar - 04 Apr Delta
25 Mar - 09 Apr British Airways direct
14 Mar - 24 Mar Virgin Atlantic
11 Mar - 23 Mar Delta
31 Mar - 07 Apr Finnair direct
20 Mar - 27 Mar United
19 Mar - 30 Mar Delta
21 Mar - 28 Mar Delta
22 Mar - 29 Mar United
19 Mar - 30 Mar British Airways direct
11 Mar - 23 Mar Finnair direct
21 Mar - 28 Mar British Airways direct

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.

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