AirHint found the following cheapest return flights from Honolulu (HNL) to London (LHR) in July 2025 (see full year).

Return flights

16 Jul - 07 Aug	Alaska Airlines
18 Jul - 29 Jul	Air Canada
18 Jul - 31 Jul	Air Canada
15 Jul - 08 Aug	Condor
16 Jul - 08 Aug	Scandinavian Airlines
18 Jul - 22 Jul	WestJet
18 Jul - 27 Jul	Air Canada
14 Jul - 21 Jul	Hawaiian Airlines
19 Jul - 02 Aug	Lufthansa
18 Jul - 25 Jul	Hawaiian Airlines
12 Jul - 18 Jul	Scandinavian Airlines
16 Jul - 06 Aug	Alaska Airlines
18 Jul - 26 Jul	Hawaiian Airlines
18 Jul - 21 Jul	Hawaiian Airlines
18 Jul - 30 Jul	Air Canada
18 Jul - 01 Aug	Air Canada

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

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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Cheapest return flights from Honolulu to London in July from $1409

Return flights