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

Return flights

15 Mar - 05 Apr	China Eastern
15 Mar - 18 Mar	HK Express
14 Mar - 05 Apr	China Eastern
09 Mar - 10 Mar	China Eastern
08 Mar - 09 Mar	China Eastern
16 Mar - 30 Mar	China Eastern
19 Mar - 02 Apr	China Eastern
27 Mar - 03 Apr	China Eastern
03 Mar - 10 Mar	Air China
04 Mar - 11 Mar	Air China
06 Mar - 27 Mar	HK Express
10 Mar - 10 Mar	China Eastern

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

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 March from 527€

Return flights