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

Return flights

23 Apr - 07 May	Air China
23 Apr - 10 May	Air China
26 Apr - 11 May	Air China
28 Apr - 13 May	Air China
23 Apr - 05 May	Air China
26 Apr - 04 May	Air China
20 Apr - 07 May	Air China
26 Apr - 10 May	Air China
26 Apr - 22 May	Air China
29 Apr - 12 May	Air China
08 Apr - 22 Apr	China Eastern
15 Apr - 22 Apr	China Eastern
12 Apr - 19 Apr	China Eastern
08 Apr - 21 Apr	China Eastern
10 Apr - 20 Apr	China Eastern
12 Apr - 20 Apr	China Eastern
13 Apr - 22 Apr	China Eastern
09 Apr - 21 Apr	China Eastern
16 Apr - 23 Apr	China Eastern
18 Apr - 28 Apr	Aegean Airlines

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 455€

Return flights