Cheap flights from London Gatwick Airport to Hanoi from £246

The month of November is, on average, the cheapest month to fly to Hanoi from London Gatwick Airport, with most prices found around £410. If you’re not able to fly to Hanoi in November, then September is your next best option. Flight prices from London Gatwick Airport to Hanoi during September average around £423.

The cheapest day to depart from London Gatwick Airport to Hanoi is on a Monday when prices can be found for as low as £781. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London Gatwick Airport to Hanoi for around £895.

According to our data, the cheapest time of day to fly to Hanoi is in the afternoon. momondo users have found flights departing from London Gatwick Airport to Hanoi in the afternoon for as low as £761. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Hanoi, so prices are often more expensive at around £901 per ticket.

You are more likely to see cheaper flights to Hanoi from London Gatwick Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Hanoi for around £567 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Hanoi from London Gatwick Airport for as low as £384 on momondo.

You could potentially save up to 7% on your flight if you consider stops on a London Gatwick Airport to Hanoi flight.

As of September 2026, prices for London Gatwick Airport to Hanoi flights are approximately 31% cheaper when compared to flights at the same time last year.

Air China and SWISS are the most popular carriers operating from London Gatwick to Hanoi Noibai

Air China, China Eastern and Qatar Airways are the top three most popular airlines that fly to Hanoi from London Gatwick Airport according to our data. Air China is the first choice among our users, with 51% of people opting to fly with this airline when travelling to Hanoi. Keep in mind that there are 8 different airlines that fly to Hanoi on a routine basis, so you have a few additional options to choose from.

Shanghai (PVG) was the most common stop: 51% of momondo users choosing one-stop flights on this route connected there.

Flights via Istanbul (IST) offer the lowest average return price of £567.

Flights connecting via Doha (DOH) have the shortest average one-way travel time: 16h 07m.

Doha (DOH) has the shortest average stopover time for this route: 2h 47m.