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Cheap flights from London Heathrow Airport to Tonga from £698

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TBU
27 Apr — 4 May1
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 28 March 2026.

Thu 17/909:00
LHR
-
TBU
3 stops42h 55m
Multiple Airlines
Wed 7/1011:20
TBU
-
LHR
3 stops61h 55m
Multiple Airlines
Deal found 27/3£1,543
Mon 25/509:00
LHR
-
TBU
2 stops41h 35m
Multiple Airlines
Mon 15/611:55
TBU
-
LHR
2 stops46h 15m
Multiple Airlines
Deal found 23/3£1,555
Thu 17/920:35
LHR
-
TBU
2 stops35h 10m
Air New Zealand
Wed 7/1014:50
TBU
-
LHR
2 stops34h 30m
Air New Zealand
Deal found 27/3£1,563
Mon 12/1015:05
LHR
-
TBU
2 stops34h 30m
Air New Zealand
Mon 26/1021:35
TBU
-
LHR
2 stops45h 20m
Air New Zealand
Deal found 27/3£1,596

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 28 March 2026.

Round-trip from

£1,543

One-way from

£698
17/9-7/10
  • 17/9-7/10
  • 6 total stops
  • 104h 50m total
  • London to Tonga
Search Deals
12/9
  • 12/9
  • 3 total stops
  • 54h 25m 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 28 March 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

Thu 17/9

09:00-15:55

3 stops42h 55m

Nuku‘alofa Fua'Amotu Intl

Wed 7/10

11:20-13:15

3 stops61h 55m

£1,543

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Mon 25/5

09:00-14:35

2 stops41h 35m

Nuku‘alofa Fua'Amotu Intl

Mon 15/6

11:55-22:10

2 stops46h 15m

£1,555
Fastest return journey

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Thu 17/9

20:35-19:45

2 stops35h 10m

Nuku‘alofa Fua'Amotu Intl

Wed 7/10

14:50-13:20

2 stops34h 30m

£1,563
Cheapest one-way

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Sat 12/9

22:05-16:30

3 stops54h 25m

£698

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Mon 22/6

22:00-10:45

3 stops48h 45m

£748

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Fri 19/6

22:00-10:45

3 stops48h 45m

£825
Fastest single journey

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Sun 21/6

22:10-01:45

3 stops39h 35m

£932

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Mon 20/7

19:50-15:55

3 stops56h 05m

£1,061

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Fri 19/6

20:35-10:45

2 stops50h 10m

£1,396

Flights are sorted by cheapest return flights first.

Deals found on 26/3

Sorted 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.
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 28 March 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
621 reviews
Check prices

Comfort

8.0

Food

7.4

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.4

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
621 reviews
Air New Zealand
8.0
Very Good
621 reviews
Check prices

Comfort

8.0

Food

7.4

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.4

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 Air New Zealand fly from London Heathrow Airport to Tonga in about 35h 10m. 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.

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 28 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air New ZealandCheapest£1,275Average£1,741FlexibilityNo 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?

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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