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

Return flights

07 Mar - 20 Mar	Air China
09 Mar - 22 Mar	Air China
05 Mar - 26 Mar	Wizz Air UK
05 Mar - 21 Mar	Wizz Air UK
17 Mar - 24 Mar	Ryanair
12 Mar - 19 Mar	Ryanair
12 Mar - 26 Mar	Ryanair
08 Mar - 29 Mar	Air China
08 Mar - 22 Mar	Air China
10 Mar - 22 Mar	Air China
19 Mar - 06 Apr	Wizz Air UK
31 Mar - 15 Apr	Wizz Air UK
29 Mar - 13 Apr	Wizz Air UK
08 Mar - 13 Apr	Air China
08 Mar - 11 Apr	Air China
22 Mar - 01 Apr	Norse Atlantic Airways (UK)
27 Mar - 12 Apr	Wizz Air UK
23 Mar - 05 Apr	Qatar Airways
27 Mar - 17 Apr	Wizz Air UK
27 Mar - 13 Apr	Wizz Air UK

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 $620

Return flights