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

Return flights

04 Mar - 11 Mar	China Southern
11 Mar - 18 Mar	China Southern
30 Mar - 15 Apr	Emirates
20 Mar - 31 Mar	China Southern
29 Mar - 06 Apr	Qatar Airways
01 Mar - 23 Mar	Cathay Pacific
18 Mar - 29 Mar	Air China
26 Mar - 03 Apr	Air China
13 Mar - 25 Mar	Cathay Pacific
15 Mar - 15 Mar	Emirates
06 Mar - 27 Mar	China Southern
28 Mar - 11 Apr	Air China
29 Mar - 06 Apr	Vietnam Airlines	direct
15 Mar - 15 Mar	Vietnam Airlines	direct
04 Mar - 11 Mar	Vietnam Airlines	direct
30 Mar - 15 Apr	Vietnam Airlines	direct

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 $648

Return flights