Cheap flights from Hanoi to London from £163

The cheapest month to fly to London from Hanoi is in December. Flight prices, which tend to average around £609, are often lower during this time because this is during the off-season. The month of May is another great option to travel to London, with average flight prices from Hanoi averaging around £642.

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £985. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Hanoi to London for around £1,065.

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £967. Flights in the morning are often more expensive, with an average ticket price of £1,017.

Fly from Hanoi Noibai to London Heathrow for the best Hanoi Noibai - London flight prices

There are 3 cabin classes available to choose from on Hanoi to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 48% on your flight if you consider stops on a Hanoi to London flight.

Historically, on average around 19% of flights between Hanoi and London have experienced a delay on any given week. The average delay length over the past 12 months has been 105 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

According to our data, Vietnam Airlines have had the fewest delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

Shanghai (PVG) was the most common stop: 61% of momondo users choosing one-stop flights on this route connected there.

Flights via Guangzhou (CAN) offer the lowest average return price of £508.

Flights connecting via Abu Dhabi (AUH) have the shortest average one-way travel time: 16h 20m.

Abu Dhabi (AUH) has the shortest average stopover time for this route: 1h 38m.

The number of flights available between Hanoi and London is 1 per day as of November 2026. The most frequent departure time is 09:00, with 80% of daily flights leaving at midday.

As of November 2026, 8 flights take off from Hanoi and land in London each week. The most common flight departure day for this route is Mon, with 25% of weekly flights taking off on this day.