How long is the flight from London Heathrow Airport to Tonga?

Airlines like Air New Zealand and Singapore Airlines fly from London Heathrow Airport to Tonga in about 34h 05m. The time it takes to get you to your destination can typically vary by up to 17h 10m. The distance from London Heathrow Airport to Tonga is about 10321 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Tonga 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 Tonga when rainfall is around 95.0 mm.

If weather is an important factor for your trip to Tonga, 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).

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

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

How can I find direct flights from Heathrow to Tonga?

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

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

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

£1,680+ Flights from London Heathrow Airport to Tonga

Cheap flight deals from Heathrow to Tonga

Round-trip from	£1,663

30/8-2/10
4 total stops
90h 20m total
London to Tonga

Search Deals

Find flight deals from Heathrow to Tonga

Cheapest flights from Heathrow to Tonga
Explore the most affordable flight options available from Heathrow to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2025.

Sun 31/813:05LHR - TBU

2 stops34h 05mAir New Zealand

Sat 27/912:20TBU - LHR

2 stops34h 50mAir New Zealand

Deal found 19/8£1,680

Thu 2/1011:40LHR - TBU

2 stops34h 30mMultiple Airlines

Mon 27/1021:35TBU - LHR

2 stops54h 45mMultiple Airlines

Deal found 18/8£1,724

Sun 7/922:05LHR - TBU

2 stops51h 15mSingapore Airlines

Wed 8/1011:20TBU - LHR

2 stops54h 35mSingapore Airlines

Deal found 18/8£1,783

Sun 31/820:35LHR - TBU

2 stops52h 45mSingapore Airlines

Sat 4/1011:20TBU - LHR

2 stops54h 35mSingapore Airlines

Deal found 18/8£2,460

Sun 31/813:05LHR - TBU

2 stops34h 05mMultiple Airlines

Sat 27/905:40TBU - LHR

3 stops35h 45mMultiple Airlines

Deal found 19/8£3,496

Best flights from Heathrow to Tonga
Discover carefully curated flight deals from Heathrow to Tonga that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 August 2025.

Sun 31/813:05LHR - TBU

2 stops34h 05mAir New Zealand

Sat 27/912:20TBU - LHR

2 stops34h 50mAir New Zealand

Deal found 19/8£1,680

Thu 2/1011:40LHR - TBU

2 stops34h 30mMultiple Airlines

Mon 27/1021:35TBU - LHR

2 stops54h 45mMultiple Airlines

Deal found 18/8£1,724

Sun 7/922:05LHR - TBU

2 stops51h 15mSingapore Airlines

Wed 8/1011:20TBU - LHR

2 stops54h 35mSingapore Airlines

Deal found 18/8£1,783

Sun 31/820:35LHR - TBU

2 stops52h 45mSingapore Airlines

Sat 4/1011:20TBU - LHR

2 stops54h 35mSingapore Airlines

Deal found 18/8£2,460

Sun 31/813:05LHR - TBU

2 stops34h 05mMultiple Airlines

Sat 27/905:40TBU - LHR

3 stops35h 45mMultiple Airlines

Deal found 19/8£3,496

Last-minute flights from Heathrow to Tonga
Discover last-minute flight deals from Heathrow to Tonga. Data last updated 20 August 2025 and is based on user searches.

Sun 31/813:05LHR - TBU

2 stops34h 05mAir New Zealand

Sat 27/912:20TBU - LHR

2 stops34h 50mAir New Zealand

Deal found 19/8£1,680

Sun 31/820:35LHR - TBU

2 stops52h 45mSingapore Airlines

Sat 4/1011:20TBU - LHR

2 stops54h 35mSingapore Airlines

Deal found 18/8£2,460

Sun 31/813:05LHR - TBU

2 stops34h 05mMultiple Airlines

Sat 27/905:40TBU - LHR

3 stops35h 45mMultiple Airlines

Deal found 19/8£3,496

Sun 7/922:05LHR - TBU

2 stops51h 15mSingapore Airlines

Wed 8/1011:20TBU - LHR

2 stops54h 35mSingapore Airlines

Deal found 18/8£1,783

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Sun 31/8

13:05-11:10

2 stops34h 05m

Nuku‘alofa Fua'Amotu Intl

Sat 27/9

12:20-11:10

2 stops34h 50m

£1,680

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Thu 2/10

11:40-10:10

2 stops34h 30m

Nuku‘alofa Fua'Amotu Intl

Mon 27/10

21:35-15:20

2 stops54h 45m

£1,724

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Sun 7/9

22:05-13:20

2 stops51h 15m

Nuku‘alofa Fua'Amotu Intl

Wed 8/10

11:20-05:55

2 stops54h 35m

£1,783

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Sun 31/8

20:35-13:20

2 stops52h 45m

Nuku‘alofa Fua'Amotu Intl

Sat 4/10

11:20-05:55

2 stops54h 35m

£2,460

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Sun 31/8

13:05-11:10

2 stops34h 05m

Nuku‘alofa Fua'Amotu Intl

Sat 27/9

05:40-05:25

3 stops35h 45m

£3,496

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Best time to book a flight from Heathrow to Tonga

Have a flexible travel schedule? Discover the best time to fly to Tonga 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 Tonga

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

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

Related info for your journey

How long is the flight from London Heathrow Airport to Tonga?
Airlines like Air New Zealand and Singapore Airlines fly from London Heathrow Airport to Tonga in about 34h 05m. The time it takes to get you to your destination can typically vary by up to 17h 10m. The distance from London Heathrow Airport to Tonga is about 10321 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Heathrow to Tonga that include hotel bookings?
Yes. In addition to deals on Heathrow to Tonga flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Tonga?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Tonga.
Can I find deals for business class flights from Heathrow to Tonga?
Yes. Cheapflights offers flight deals from Heathrow to Tonga by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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When you search for this flight from Heathrow to Tonga, 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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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Tonga.

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

Need flexible booking options for your flight to Tonga from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Of course! You can now track prices for flights from Heathrow to Tonga and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from London Heathrow Airport to Tonga from £1,680

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Tonga

Keep the following information in mind while searching for Heathrow to Tonga flight deals. Data was last updated 20 August 2025.

Round-trip from

Find flight deals from Heathrow to Tonga

Cheapest flights from Heathrow to TongaExplore the most affordable flight options available from Heathrow to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2025.

Explore the most affordable flight options available from Heathrow to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Tonga

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

Cheapflights Insights

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

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

Find hourly flight availability from Heathrow to Tonga. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 August 2025.

Related info for your journey

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

How long is the flight from London Heathrow Airport to Tonga?

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

How can I find direct flights from Heathrow to Tonga?

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

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 Tonga

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

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 Tonga?

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

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

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

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Cheapest flights from Heathrow to Tonga
Explore the most affordable flight options available from Heathrow to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 August 2025.