Find flights
When to book
Airlines

Cheap flights from London Heathrow Airport to Tonga from £1,269

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TBU
6 Jul — 13 Jul1
1 adult

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 1 July 2025.

Round-trip from

£1,269
13/8-20/8
  • 13/8-20/8
  • 4 total stops
  • 62h 15m total
  • London to Tonga

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 1 July 2025.

Wed 13/816:25LHR - TBU
2 stops30h 45mMultiple Airlines
Wed 20/814:35TBU - LHR
2 stops31h 30mMultiple Airlines
Deal found 29/6£1,269
Sun 7/911:25LHR - TBU
2 stops35h 45mSingapore Airlines
Wed 8/1013:35TBU - LHR
2 stops38h 10mSingapore Airlines
Deal found 30/6£1,589

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 1 July 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

Wed 13/8

16:25-11:10

2 stops30h 45m

Nuku‘alofa Fua'Amotu Intl

Wed 20/8

14:35-10:05

2 stops31h 30m

£1,269

LondonNuku‘alofa

LHR - TBU

LHRTBU

London Heathrow

Sun 7/9

11:25-11:10

2 stops35h 45m

Nuku‘alofa Fua'Amotu Intl

Wed 8/10

13:35-15:45

2 stops38h 10m

£1,589

Flights are sorted by cheapest return flights first.

Deals found on 29/6

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 1 July 2025.

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.

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 1 July 2025.
Read reviews from past customers who have flown with Singapore Airlines 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.

Entertainment

8.0

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.7

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Entertainment

8.0

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.7

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

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.

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?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.