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Cheap flights from London Heathrow Airport to Tonga from £1,568

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TBU
5 Jul — 12 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Tonga

Enter your travel dates to find the best prices.

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 5 June 2026.

Tue 11/808:25
LHR
-
TBU
3 stops38h 20m
Multiple Airlines
Thu 24/911:55
TBU
-
LHR
2 stops46h 15m
Multiple Airlines
Deal found 1/6£1,568
Thu 13/818:15
LHR
-
TBU
2 stops33h 40m
Multiple Airlines
Mon 24/816:50
TBU
-
LHR
2 stops34h 10m
Multiple Airlines
Deal found 4/6£1,582
Sat 14/1110:40
LHR
-
TBU
2 stops44h 40m
Singapore Airlines
Sat 21/1121:35
TBU
-
LHR
2 stops45h 20m
Singapore Airlines
Deal found 31/5£1,678
Sat 14/1122:00
LHR
-
TBU
3 stops47h 35m
Multiple Airlines
Sat 21/1105:00
TBU
-
LHR
3 stops67h 40m
Multiple Airlines
Deal found 31/5£1,772
Mon 22/615:05
LHR
-
TBU
2 stops35h 30m
Multiple Airlines
Wed 15/715:50
TBU
-
LHR
2 stops30h 25m
Multiple Airlines
Deal found 3/6£2,017
Wed 24/611:40
LHR
-
TBU
2 stops46h 00m
Multiple Airlines
Tue 14/711:55
TBU
-
LHR
2 stops39h 05m
Multiple Airlines
Deal found 31/5£2,167

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 5 June 2026.

Round-trip from

£1,568
11/8-24/9
  • 11/8-24/9
  • 5 total stops
  • 84h 35m 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 5 June 2026.
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

Cheapest return flight

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Tue 11/8

08:25-10:45

3 stops38h 20m

Nuku‘alofa Fua'Amotu Intl

Thu 24/9

11:55-22:10

2 stops46h 15m

£1,568

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Sat 14/11

10:40-20:20

2 stops44h 40m

Nuku‘alofa Fua'Amotu Intl

Sat 21/11

21:35-05:55

2 stops45h 20m

£1,678

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Sat 14/11

22:00-10:35

3 stops47h 35m

Nuku‘alofa Fua'Amotu Intl

Sat 21/11

05:00-11:40

3 stops67h 40m

£1,772
Fastest return journey

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Wed 24/6

15:05-21:40

2 stops42h 35m

Nuku‘alofa Fua'Amotu Intl

Tue 14/7

11:55-13:20

2 stops37h 25m

£2,832

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Wed 24/6

20:50-16:30

2 stops55h 40m

Nuku‘alofa Fua'Amotu Intl

Tue 14/7

17:30-05:05

3 stops47h 35m

£3,271

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Thu 25/6

20:35-19:45

2 stops35h 10m

Nuku‘alofa Fua'Amotu Intl

Tue 14/7

20:55-19:30

2 stops58h 35m

£3,332

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Tue 23/6

11:20-10:45

2 stops35h 25m

Nuku‘alofa Fua'Amotu Intl

Tue 14/7

20:55-15:45

2 stops54h 50m

£3,347

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Mon 22/6

11:20-14:35

2 stops39h 15m

Nuku‘alofa Fua'Amotu Intl

Fri 17/7

22:40-19:30

2 stops56h 50m

£3,472

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Sat 14/11

20:20-15:45

3 stops54h 25m

Nuku‘alofa Fua'Amotu Intl

Sat 21/11

16:55-11:40

2 stops31h 45m

£3,792
Cheapest one-way
Fastest single journey

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Thu 2/7

19:40-16:30

3 stops32h 50m

£2,866

Flights are sorted by cheapest return flights first.

Deals found on 3/6

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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

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 5 June 2026.
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
645 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.4

Comfort

7.9

Entertainment

7.4

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air New Zealand
8.0
Very Good
645 reviews
Air New Zealand
8.0
Very Good
645 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.4

Comfort

7.9

Entertainment

7.4

Boarding

8.2

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

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?

    Airlines like Singapore Airlines and Air New Zealand fly from London Heathrow Airport to Tonga in about 42h 35m. The time it takes to get you to your destination can typically vary by up to 2h 05m. 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

Browse thousands of different options on Cheapflights for your next trip

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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 5 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air New ZealandCheapest£1,263Average£1,737FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights

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

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.

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

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.

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

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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