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

Return flights

12 Apr - 04 May	Air China
25 Apr - 09 May	Air China
26 Apr - 10 May	Air China
28 Apr - 10 May	Air China
22 Apr - 04 May	Air China
27 Apr - 10 May	Air China
27 Apr - 17 May	Air China
29 Apr - 09 May	Air China
29 Apr - 13 May	Air China
29 Apr - 12 May	Air China
09 Apr - 23 Apr	China Eastern
13 Apr - 20 Apr	China Eastern
05 Apr - 27 Apr	Scandinavian Airlines
12 Apr - 22 Apr	China Eastern
08 Apr - 22 Apr	China Eastern
08 Apr - 21 Apr	China Eastern
11 Apr - 21 Apr	China Eastern
13 Apr - 22 Apr	China Eastern
07 Apr - 20 Apr	China Eastern
13 Apr - 19 Apr	China Eastern

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

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 April from 546€

Return flights