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

Return flights

01 May - 08 May	Air China
03 May - 10 May	Air China
18 May - 28 May	Air China
17 May - 27 May	Air China
18 May - 25 May	Air China
01 May - 10 May	Air China
03 May - 20 May	Air China
03 May - 17 May	Air China
01 May - 25 May	Air China
03 May - 27 May	Air China
06 May - 01 Jun	Air China
27 May - 14 Jun	Air China
23 May - 06 Jun	Air China
27 May - 05 Jun	Air China
22 May - 06 Jun	Air China
24 May - 08 Jun	Air China
01 May - 04 Jun	Air China
04 May - 07 Jun	Air China
27 May - 03 Jun	Air China
28 May - 04 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 529€

Return flights