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

Airlines like Air New Zealand fly from London Heathrow Airport to Tonga in about 32h 30m. The time it takes to get you to your destination can typically vary by up to . The distance from London Heathrow Airport to Tonga is about 10321 mi.

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).

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.

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.

£687+ Cheap Flights from London Heathrow Airport to Tonga

Cheap flight deals from Heathrow to Tonga

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 13 September 2026.

Sun 27/1221:00 -

2 stops50h 00m

Wed 30/1221:40 -

2 stops56h 50m

Deal found 9/9£1,701

Thu 17/916:55 -

2 stops35h 00m

Wed 30/911:20 -

2 stops35h 45m

Deal found 12/9£1,867

Mon 28/913:05 -

2 stops36h 30m

Sat 3/1010:55 -

2 stops35h 15m

Deal found 12/9£2,430

Thu 17/915:00 -

2 stops31h 45m

Wed 30/914:50 -

2 stops32h 20m

Deal found 12/9£2,599

Mon 28/912:20 -

3 stops58h 15m

Sat 3/1016:55 -

2 stops39h 40m

Deal found 12/9£2,861

Thu 17/917:00 -

2 stops35h 30m

Wed 30/914:50 -

3 stops31h 55m

Deal found 12/9£2,865

Find flight deals from Heathrow to Tonga

Round-trip from	£1,447
One-way from	£687

Air New Zealand
28/2-17/3
4 total stops
70h 10m total
London to Tonga

Search Deals

7/12-31/12
3 total stops
53h 00m total
London to Tonga

Search Deals

Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

LondonNuku‘alofa

LHR London Heathrow - TBU Nuku‘alofa Fua'Amotu Intl

LHRTBU

London Heathrow

Mon 7/12

21:00-15:00

3 stops53h 00m

Nuku‘alofa Fua'Amotu Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

£687

LondonNuku‘alofa

LHR London Heathrow - TBU Nuku‘alofa Fua'Amotu Intl

LHRTBU

London Heathrow

Mon 7/12

13:30-10:35

2 stops32h 05m

Nuku‘alofa Fua'Amotu Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

£825

LondonNuku‘alofa

LHR London Heathrow - TBU Nuku‘alofa Fua'Amotu Intl

LHRTBU

London Heathrow

Sun 28/2

10:55-08:55

2 stops33h 00m

Nuku‘alofa Fua'Amotu Intl

Wed 17/3

13:20-13:30

2 stops37h 10m

£1,447

LondonNuku‘alofa

LHR London Heathrow - TBU Nuku‘alofa Fua'Amotu Intl

LHRTBU

London Heathrow

Wed 3/3

09:25-20:25

3 stops46h 00m

Nuku‘alofa Fua'Amotu Intl

Thu 11/3

21:40-06:25

3 stops45h 45m

£1,508

LondonNuku‘alofa

LHR London Heathrow - TBU Nuku‘alofa Fua'Amotu Intl

LHRTBU

London Heathrow

Mon 1/3

14:30-12:00

2 stops32h 30m

Nuku‘alofa Fua'Amotu Intl

Tue 16/3

10:10-05:55

2 stops32h 45m

£1,514

LondonNuku‘alofa

LHR London Heathrow - TBU Nuku‘alofa Fua'Amotu Intl

LHRTBU

London Heathrow

Sat 27/2

21:45-20:25

2 stops33h 40m

Nuku‘alofa Fua'Amotu Intl

Tue 16/3

10:10-05:55

2 stops32h 45m

£1,531

Fastest return journey

LondonNuku‘alofa

LHR London Heathrow - TBU Nuku‘alofa Fua'Amotu Intl

LHRTBU

London Heathrow

Sat 3/10

15:05-09:45

2 stops30h 40m

Nuku‘alofa Fua'Amotu Intl

Wed 31/12

00:00-12:00

Nonstop0h 00m

£1,637

LondonNuku‘alofa

LHR London Heathrow - TBU Nuku‘alofa Fua'Amotu Intl

LHRTBU

London Heathrow

Mon 1/3

14:15-12:00

3 stops32h 45m

Nuku‘alofa Fua'Amotu Intl

Thu 18/3

21:40-06:25

3 stops45h 45m

£1,637

LondonNuku‘alofa

LHR London Heathrow - TBU Nuku‘alofa Fua'Amotu Intl

LHRTBU

London Heathrow

Sun 27/12

21:00-12:00

2 stops50h 00m

Nuku‘alofa Fua'Amotu Intl

Wed 30/12

21:40-17:30

2 stops56h 50m

£1,701

LondonNuku‘alofa

LHR London Heathrow - TBU Nuku‘alofa Fua'Amotu Intl

LHRTBU

London Heathrow

Tue 2/3

20:35-20:25

2 stops34h 50m

Nuku‘alofa Fua'Amotu Intl

Tue 16/3

10:10-07:40

2 stops34h 30m

£1,917

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 12 resultsSorted by cheapest first

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.

LHR-TBU

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

LHR-TO0

LHR-TBU

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Tonga

Read reviews from past customers who have flown with Air New Zealand from London Heathrow Airport to Tonga. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air New Zealand

8.0

Very Good

669 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Air New Zealand

8.0

Very Good

669 reviews

Air New Zealand

8.0

Very Good

669 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Related info for your journey

How long is the flight from London Heathrow Airport to Tonga?
Airlines like Air New Zealand fly from London Heathrow Airport to Tonga in about 32h 30m. The time it takes to get you to your destination can typically vary by up to . The distance from London Heathrow Airport to Tonga is about 10321 mi.
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.

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Top airline flying from Heathrow to Tonga

Airline	Cheapest	Average	Flexibility	On-time
Air New Zealand	Cheapest£1,219	Average£1,725	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights

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

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Cheap flights from London Heathrow Airport to Tonga from £687

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 13 September 2026.

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 13 September 2026.

Best flights from Heathrow to TongaDiscover 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 13 September 2026.

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 13 September 2026.

Last-minute flights from Heathrow to TongaDiscover last-minute flight deals from Heathrow to Tonga. Data last updated 13 September 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Tonga. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Heathrow to TongaSearch for one-way flight options from Heathrow to Tonga. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

Search for one-way flight options from Heathrow to Tonga. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

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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

Reviews of airlines servicing Tonga

Read reviews from past customers who have flown with Air New Zealand from London Heathrow Airport to Tonga. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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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 13 September 2026.

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 13 September 2026.

Last-minute flights from Heathrow to Tonga
Discover last-minute flight deals from Heathrow to Tonga. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Heathrow to Tonga
Search for one-way flight options from Heathrow to Tonga. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.