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

Return flights

05 May - 19 May	Wizz Air Malta
03 May - 27 May	Air China
04 May - 28 May	Air China
10 May - 17 May	Air China
20 May - 30 May	Air China
06 May - 20 May	Air China
10 May - 24 May	Air China
06 May - 17 May	Air China
31 May - 14 Jun	Air China
18 May - 22 Jun	Air China
31 May - 15 Jun	Air China
15 May - 29 May	Air China
15 May - 31 May	Air China
24 May - 03 Jun	Air China
12 May - 02 Jun	Air China
13 May - 03 Jun	Air China
27 May - 18 Jun	Air China
27 May - 01 Jun	Air China
31 May - 08 Jun	Air China
25 May - 03 Jun	Air China

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

Book a cheap hotel in Hanoi

Cheap car rent in Hanoi

Cheapest return flights from London to Hanoi in May from 510€

Return flights