In terms of precipitation, rainfall in Tongatapu ranges from 95.0 - 210.0 inches per month. February is typically the wettest month, when rainfall can reach 210.0 mm. June is typically the driest time to visit Tongatapu when rainfall is around 95.0 mm.

If weather is an important factor for your trip to Tongatapu, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 22.0 C).

What is the cheapest month to fly from London Heathrow Airport to Tongatapu?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, March can be a great choice for travel to Tongatapu. Flights to Tongatapu from London Heathrow Airport in March are about £1,798 on average during March, but can be found for as low as £1,074.

Can I find deals for flights from Heathrow to Tongatapu that include hotel bookings?

Yes. In addition to deals on Heathrow to Tongatapu flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Heathrow to Tongatapu?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Tongatapu.

Can I find deals for business class flights from Heathrow to Tongatapu?

Yes. Cheapflights offers flight deals from Heathrow to Tongatapu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£918+ Cheap Flights from London Heathrow Airport to Tongatapu

Cheap flight deals from Heathrow to Tongatapu

Round-trip from	£1,467
One-way from	£918
Popular in	December
Cheapest in	March
Average price	£1,439

14/10-21/10
4 total stops
69h 35m total
London to Tongatapu

Search Deals

24/9
3 total stops
55h 45m total
London to Tongatapu

Search Deals

Highest demand for flights based on searches. 32% potential increase in price (£647 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (£90 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Heathrow to Tongatapu

Cheapest flights from Heathrow to Tongatapu
Explore the most affordable flight options available from Heathrow to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Tue 14/1011:40LHR - TBU

2 stops34h 30mMultiple Airlines

Tue 21/1011:20TBU - LHR

2 stops35h 05mMultiple Airlines

Deal found 14/9£1,467

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Tongatapu that are best for you.

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Depart

Return

Price

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Tue 14/10

11:40-10:10

2 stops34h 30m

Nuku‘alofa Fua'Amotu Intl

Tue 21/10

11:20-10:25

2 stops35h 05m

£1,467

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Wed 24/9

06:00-01:45

3 stops55h 45m

£918

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Best time to book a flight from Heathrow to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu from Heathrow with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Tongatapu

What is the cheapest time of day to fly from LHR to TT?

When flying from London Heathrow Airport to Tongatapu, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Tongatapu

Check out reviews from past customers who have flown with Air New Zealand from London Heathrow Airport to Tongatapu to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air New Zealand

8.0

Very Good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Air New Zealand

8.0

Very Good

505 reviews

Air New Zealand

8.0

Very Good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Related info for your journey

Can I find deals for flights from Heathrow to Tongatapu that include hotel bookings?
Yes. In addition to deals on Heathrow to Tongatapu flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Tongatapu?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Tongatapu.
Can I find deals for business class flights from Heathrow to Tongatapu?
Yes. Cheapflights offers flight deals from Heathrow to Tongatapu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Tongatapu

Heathrow to Nuku‘alofa flights

Top airline flying from Heathrow to Tongatapu

Airline	Cheapest	Average	Flexibility	On-time
Air New Zealand	Cheapest£1,214	Average£1,334	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights

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When you search for this flight from Heathrow to Tongatapu, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Tongatapu for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Heathrow to Tongatapu with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Tongatapu flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Tongatapu become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Tongatapu from Heathrow today and book when prices fit your budget.

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Cheap flights from London Heathrow Airport to Tongatapu from £918

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Tongatapu

Keep the following information in mind while searching for Heathrow to Tongatapu flight deals. Data was last updated 16 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Tongatapu

Cheapest flights from Heathrow to TongatapuExplore the most affordable flight options available from Heathrow to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Explore the most affordable flight options available from Heathrow to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Tongatapu that are best for you.

Best time to book a flight from Heathrow to Tongatapu

Have a flexible travel schedule? Discover the best time to fly to Tongatapu from Heathrow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Tongatapu

What is the cheapest time of day to fly from LHR to TT?

Find hourly flight availability from Heathrow to Tongatapu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 September 2025.

Reviews of airlines servicing Tongatapu

Check out reviews from past customers who have flown with Air New Zealand from London Heathrow Airport to Tongatapu to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Tongatapu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Heathrow to Tongatapu that include hotel bookings?

How can I find direct flights from Heathrow to Tongatapu?

Can I find deals for business class flights from Heathrow to Tongatapu?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Tongatapu

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Heathrow to Tongatapu

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Tongatapu?

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Tongatapu?

Can Cheapflights find flights from Heathrow to Tongatapu with no change fees?

Can Cheapflights notify me if prices for flights from Heathrow to Tongatapu become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Heathrow to Tongatapu
Explore the most affordable flight options available from Heathrow to Tongatapu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.