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

Return flights

17 May - 01 Jun	China Southern
13 May - 18 May	China Southern
07 May - 14 May	China Southern
06 May - 12 May	Air China
31 May - 10 Jun	Air China
06 May - 13 May	Air China
20 May - 24 May	Air China
22 May - 26 May	Air China
01 May - 02 May	Air China
24 May - 31 May	Air China
17 May - 22 May	Air China
23 May - 30 May	Air China
20 May - 16 Jun	VietJet Air

Also check the deals for one-way flights from Hanoi to London in May.

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 May from $657

Return flights