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

Return flights

28 Jul - 17 Aug	China Eastern
30 Jul - 18 Aug	China Eastern
31 Jul - 07 Aug	China Eastern
28 Jul - 12 Aug	China Eastern
30 Jul - 06 Aug	China Eastern
28 Jul - 04 Aug	China Eastern
29 Jul - 18 Aug	China Eastern
31 Jul - 18 Aug	VietJet Air
30 Jul - 16 Aug	China Eastern
27 Jul - 03 Aug	China Eastern
30 Jul - 31 Jul	China Eastern
27 Jul - 28 Jul	Air China
28 Jul - 30 Jul	Qatar Airways
29 Jul - 30 Jul	Qatar Airways
29 Jul - 29 Jul	Emirates
27 Jul - 28 Jul	Vietnam Airlines	direct

Also check the deals for one-way flights from Hanoi 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 Hanoi to London in July from 645€

Return flights