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

Return flights

05 Mar - 20 Mar	Norwegian
10 Mar - 17 Mar	Air China
09 Mar - 16 Mar	Air China
02 Mar - 14 Mar	Air China
02 Mar - 20 Mar	Air China
07 Mar - 28 Mar	Air China
08 Mar - 29 Mar	Air China
03 Mar - 17 Mar	Air China
10 Mar - 26 Mar	Air China
05 Mar - 19 Mar	Air China
10 Mar - 07 Apr	Air China
10 Mar - 06 Apr	Air China
10 Mar - 08 Apr	Air China
11 Mar - 08 Apr	Air China
11 Mar - 20 Apr	China Eastern
18 Mar - 04 Apr	Air China
13 Mar - 01 Apr	Air China
13 Mar - 04 Apr	Air China
13 Mar - 05 Apr	Air China
13 Mar - 03 Apr	Air China

Also check the deals for one-way flights from London to Hanoi 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 London to Hanoi in March from 496€

Return flights