Cheapest return flights from Portland to London in July from $686

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

Return flights

31 Jul - 14 Aug Icelandair
22 Jul - 29 Jul Icelandair
21 Jul - 29 Jul Icelandair
30 Jul - 04 Aug Icelandair
23 Jul - 28 Jul Icelandair
25 Jul - 01 Aug Icelandair
30 Jul - 06 Aug Icelandair
20 Jul - 29 Jul Delta
15 Jul - 22 Jul Icelandair
23 Jul - 09 Aug Icelandair
10 Jul - 17 Jul Icelandair
23 Jul - 09 Aug British Airways direct
23 Jul - 28 Jul American Airlines direct
30 Jul - 04 Aug American Airlines direct
10 Jul - 02 Aug Icelandair
01 Jul - 08 Jul Icelandair
03 Jul - 18 Jul Virgin Atlantic
01 Jul - 08 Jul American Airlines direct
10 Jul - 02 Aug Iberia direct

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

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