£1,461 Cheap flights to Tonga

According to our data, 92% of momondo users who travelled to Tonga in the last year flew into Nuku‘alofa Fua'Amotu Intl (located in Nuku‘alofa), making it the most popular airport to fly to. There may be other airports in Tonga, but the majority of our users take flights to Nuku‘alofa Fua'Amotu Intl in order to visit Nuku‘alofa and it’s surrounding areas.

The flight from United Kingdom to Tonga depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from London Heathrow (a popular airport in United Kingdom) to Nuku‘alofa Fua'Amotu Intl (the most popular airport in Tonga), then the flight time is 34h 30m on average. If you fly from Manchester (another popular airport in United Kingdom) to Nuku‘alofa Fua'Amotu Intl, then the average flight time is .

Consider booking a flight to Tonga on a Monday, which is the cheapest day of the week. You will also find that flying out on a Sunday is another low-cost option. Try to avoid booking your flight to Tonga on Wednesday, which tends to be the most expensive day of the week.

Prices for flights to Tonga are refreshed on a daily basis.

There are 2 operators available for flights to Tonga as of September 2025.

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Tonga.

The travel and health documents required for your trip to Tonga can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Tonga. We always recommend checking with your airline or a trusted third party such as IATA to get advice.