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Cheap flights from London Heathrow Airport to Trondheim from £93

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TRD
16 Jul — 23 Jul1
1 adult

Cheap flight deals from Heathrow to Trondheim

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Trondheim (TRD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 July 2025.

Round-trip from

£137

One-way from

£93

Popular in

December

Cheapest in

October

Average price

£238
Scandinavian Airlines
  • Scandinavian Airlines
  • 4/9-7/9
  • 2 total stops
  • 9h 30m total
  • London to Trondheim
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Scandinavian Airlines
  • Scandinavian Airlines
  • 17/9
  • 1 total stop
  • 27h 25m total
  • London to Trondheim
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£7 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Heathrow to Trondheim

Cheapest flights from Heathrow to Trondheim
Explore the most affordable flight options available from Heathrow to Trondheim. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Thu 4/918:40LHR - TRD
1 stop4h 55mScandinavian Airlines
Sun 7/905:45TRD - LHR
1 stop4h 35mScandinavian Airlines
Deal found 10/7£137
Thu 21/806:30LHR - TRD
1 stop9h 00mKLM
Sun 24/812:05TRD - LHR
1 stop6h 45mKLM
Deal found 9/7£174
Sat 23/815:35LHR - TRD
1 stop5h 05mMultiple Airlines
Sat 30/817:05TRD - LHR
1 stop15h 35mMultiple Airlines
Deal found 9/7£226
Sat 23/807:30LHR - TRD
1 stop10h 55mFinnair
Sat 30/809:05TRD - LHR
3 stops14h 05mFinnair
Deal found 9/7£311

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Trondheim 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 11 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Trondheim that are best for you.

Fly from

Heathrow

Fly to

Trondheim

Route

Depart

Return

Price

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Thu 4/9

18:40-00:35

1 stop4h 55m

Trondheim Vaernes

Sun 7/9

05:45-09:20

1 stop4h 35m

£137

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Thu 21/8

06:30-16:30

1 stop9h 00m

Trondheim Vaernes

Sun 24/8

12:05-17:50

1 stop6h 45m

£174

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Sat 23/8

15:35-21:40

1 stop5h 05m

Trondheim Vaernes

Sat 30/8

17:05-07:40

1 stop15h 35m

£226

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Sat 23/8

09:30-19:25

1 stop8h 55m

Trondheim Vaernes

Sat 30/8

09:05-22:10

3 stops14h 05m

£311

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Wed 17/9

09:55-14:20

1 stop27h 25m

£93

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Sat 27/12

12:15-09:40

2 stops20h 25m

£153

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Wed 17/9

18:10-13:20

3 stops18h 10m

£165

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Best time to book a flight from Heathrow to Trondheim

Have a flexible travel schedule? Discover the best time to fly to Trondheim 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 Trondheim

What is the cheapest month to book a flight from London Heathrow Airport to Trondheim?

Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Trondheim (average of £161). Flying from London Heathrow Airport to Trondheim in June is currently the most expensive (average of £259). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to TRD?

Find hourly flight availability from Heathrow to Trondheim. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Trondheim is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 45% on airfare.

Reviews of airlines servicing Trondheim

Get insights into the airlines that provide service to Trondheim. 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 Trondheim. Reviews last updated 11 July 2025.
Check out reviews from past customers who have flown with KLM, Finnair, andScandinavian Airlines from London Heathrow Airport to Trondheim to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,372 reviews
Check prices

Food

7.3

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,372 reviews
KLM
7.8
Good
1,372 reviews
Check prices

Food

7.3

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Finnair
7.6
Good
1,312 reviews
KLM
7.8
Good
1,372 reviews
Check prices

Food

7.3

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Scandinavian Airlines
7.3
Good
1,419 reviews
KLM
7.8
Good
1,372 reviews
Check prices

Food

7.3

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Trondheim. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Trondheim from London Heathrow?

    Most people fly into Trondheim Vaernes (TRD) if they book a flight to Trondheim from London Heathrow. On average, Vaernes has 0 inbound flights from London Heathrow per day from 2 airlines. Trondheim Vaernes is conveniently located just 16.4 mi from Trondheim’s city center.

  • What are the cheapest airlines flying from London Heathrow Airport to Trondheim round-trip?

    Flying on Scandinavian Airlines is currently your cheapest option to Trondheim, with prices starting at £137. Additional return tickets that might be worth considering are offered by KLM and Finnair, with the lowest prices starting at £174 and £311, respectively. You may be able to fly from London Heathrow Airport to Trondheim for 16% less than the average price by searching for these airlines.

  • Can I find deals for flights from Heathrow to Trondheim that include hotel bookings?

    Yes. In addition to deals on Heathrow to Trondheim flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Trondheim?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Trondheim.

  • Can I find deals for business class flights from Heathrow to Trondheim?

    Yes. Cheapflights offers flight deals from Heathrow to Trondheim by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Trondheim?

    Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Trondheim (average of £161). Flying from London Heathrow Airport to Trondheim in June is currently the most expensive (average of £259). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Heathrow to Trondheim

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Heathrow to Trondheim

Discover the top 2 airlines that operate flights from Heathrow to Trondheim. 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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£110Average£151FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£134Average£224FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Heathrow to Trondheim flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Trondheim flexibly with Cheapflights today.

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

Yes! Start tracking prices for Heathrow to Trondheim flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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