The railway line running through a narrow street of houses in Hanoi

Cheap flights from London Heathrow to Hanoi

Return fares from £405 in the next 12 months. Pick a day in the calendar to see the fare.

Cheapest return: £405
Typical return: £436.50
Cheapest one way: –
Cheapest month: February

Price calendar

Cheapest return fare by departure day, 5–30 nights, direct or with one stop. Green days are the cheapest of the month.

Cheapest return fare per departure day, January 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
				1–	2–	3–
4–	5–	6–	7–	8–	9–	10–
11–	12–	13–	14–	15–	16–	17–
18£425 return, back 31 Jan	19–	20–	21–	22–	23–	24–
25–	26–	27–	28–	29–	30–	31–

Cheapest dates

Mon 22 Feb – Mon 8 Mar · 14 nights
CA · 1 stop
£405Check price ↗
Mon 18 Jan – Sun 31 Jan · 13 nights
CA · 1 stop
£425Check price ↗
Thu 21 Oct – Wed 27 Oct · 6 nights
CA · 1 stop
£448Check price ↗
Sat 6 Mar – Sun 14 Mar · 8 nights
MU · 1 stop
£455Check price ↗

London Heathrow to Hanoi: questions

How much is a flight from London Heathrow to Hanoi?: In the fares we found for the next 12 months, return flights start at £405 and the median is £436.50 (4 fares, 5–30 nights, 1 adult).
What is the cheapest month to fly from London Heathrow to Hanoi?: February 2027, from £405 return, of the months we have fares for.
Are there direct flights from London Heathrow to Hanoi?: Not in the fares we found: they all have a stop.
Which airlines fly from London Heathrow to Hanoi?: In our fares: CA, MU.

More flights from London Heathrow

Prices are return fares for one adult, found in searches in the last few days and cached; they can change at any time, and the final price and availability are shown when you book. Checked bags are extra unless the airline includes them.