Cheapest return flights from Portland to London in April from $544

AirHint found the following cheapest return flights from Portland (PDX) to London (LHR) in April 2026 (see full year).

Return flights

14 Apr - 20 Apr Icelandair
16 Apr - 23 Apr Icelandair
21 Apr - 28 Apr Icelandair
30 Apr - 10 May Icelandair
30 Apr - 07 May Icelandair
30 Apr - 12 May Icelandair
13 Apr - 22 Apr Icelandair
13 Apr - 28 Apr Icelandair
13 Apr - 20 Apr Icelandair
21 Apr - 30 Apr Icelandair
25 Apr - 02 May Icelandair
28 Apr - 05 May Icelandair
23 Apr - 06 May Icelandair
07 Apr - 16 Apr Icelandair
02 Apr - 14 Apr Icelandair
08 Apr - 16 Apr Finnair
23 Apr - 06 May American Airlines direct
30 Apr - 10 May Aer Lingus direct
30 Apr - 07 May Finnair direct
30 Apr - 12 May Finnair direct

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

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