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

Return flights

06 Jul - 26 Jul	Etihad Airways
01 Jul - 16 Jul	Air India
04 Jul - 18 Jul	Air Serbia
01 Jul - 06 Jul	Oman Air
04 Jul - 12 Jul	Air Serbia
01 Jul - 29 Jul	China Southern
01 Jul - 15 Jul	China Southern
09 Jul - 26 Jul	China Southern
06 Jul - 27 Jul	China Southern
05 Jul - 20 Jul	China Southern
11 Jul - 11 Aug	China Southern
13 Jul - 03 Aug	China Southern
18 Jul - 08 Aug	Oman Air
19 Jul - 02 Aug	Oman Air
26 Jul - 02 Aug	Oman Air
28 Jul - 11 Aug	Oman Air
31 Jul - 21 Aug	Oman Air
11 Jul - 01 Aug	Oman Air
26 Jul - 09 Aug	Oman Air
31 Jul - 07 Aug	Air China

Also check the deals for one-way flights from London to Hanoi 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 London to Hanoi in July from 644€

Return flights