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Cheap flights from London Heathrow Airport to Tonga from £1,518

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TBU
9 Jan — 16 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Tonga

Enter your travel dates to find the best prices.

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 10 December 2025.

Fri 23/117:40LHR - TBU
2 stops61h 40mMultiple Airlines
Fri 30/111:20TBU - LHR
2 stops43h 30mMultiple Airlines
Deal found 9/12£1,518
Thu 22/113:45LHR - TBU
2 stops34h 50mMultiple Airlines
Thu 29/121:35TBU - LHR
2 stops54h 25mMultiple Airlines
Deal found 8/12£1,772
Tue 6/110:40LHR - TBU
2 stops44h 40mMultiple Airlines
Tue 13/121:35TBU - LHR
2 stops46h 50mMultiple Airlines
Deal found 7/12£2,499

Find flight deals from Heathrow to Tonga

Keep the following information in mind while searching for Heathrow to Tonga flight deals. Data was last updated 10 December 2025.

Round-trip from

£1,518
23/1-30/1
  • 23/1-30/1
  • 4 total stops
  • 105h 10m total
  • London to Tonga
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Tonga that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 10 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Tonga that are best for you.

Fly from

Heathrow

Fly to

Tonga

Route

Depart

Return

Price

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Fri 23/1

17:40-20:20

2 stops61h 40m

Nuku‘alofa Fua'Amotu Intl

Fri 30/1

11:20-17:50

2 stops43h 30m

£1,518

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Thu 22/1

13:45-13:35

2 stops34h 50m

Nuku‘alofa Fua'Amotu Intl

Thu 29/1

21:35-15:00

2 stops54h 25m

£1,772

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Tue 6/1

10:40-20:20

2 stops44h 40m

Nuku‘alofa Fua'Amotu Intl

Tue 13/1

21:35-07:25

2 stops46h 50m

£2,499

Flights are sorted by cheapest return flights first.

Deals found on 9/12

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?

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 10 December 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Tonga in the afternoon. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Tonga

Get insights into the airlines that provide service to Tonga. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Tonga. Reviews last updated 10 December 2025.
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
552 reviews
Check prices

Crew

8.5

Comfort

8.0

Food

7.4

Entertainment

7.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess
Air New Zealand
8.0
Very Good
552 reviews
Air New Zealand
8.0
Very Good
552 reviews
Check prices

Crew

8.5

Comfort

8.0

Food

7.4

Entertainment

7.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

LAX - ORD

Overall good experience with united . I fly united most part so nothing out of obvious i guess

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.

  • 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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Alternative routes for Heathrow to Tonga

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Top airline flying from Heathrow to Tonga

Discover the top airline that operate flights from Heathrow to Tonga. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 10 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air New ZealandCheapest£1,238Average£1,361FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights

Fly with Cheapflights

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

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

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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.

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

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