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Cheap flights from London Heathrow Airport to Trondheim from £104

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 22/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TRD
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Trondheim

Enter your travel dates to find the best prices.

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 12 December 2025.

Sun 21/1215:35LHR - TRD
1 stop4h 15mScandinavian Airlines
Fri 9/110:35TRD - LHR
1 stop9h 15mScandinavian Airlines
Deal found 10/12£234
Sun 21/1215:35LHR - TRD
1 stop4h 15mScandinavian Airlines
Wed 7/110:35TRD - LHR
1 stop9h 15mScandinavian Airlines
Deal found 10/12£235
Sun 21/1215:35LHR - TRD
1 stop4h 15mScandinavian Airlines
Mon 5/109:35TRD - LHR
1 stop25h 00mScandinavian Airlines
Deal found 10/12£247
Wed 24/1219:50LHR - TRD
1 stop15h 40mScandinavian Airlines
Tue 30/1218:35TRD - LHR
1 stop16h 00mScandinavian Airlines
Deal found 10/12£251
Thu 25/1210:35LHR - TRD
1 stop6h 25mScandinavian Airlines
Sun 28/1208:20TRD - LHR
1 stop7h 15mScandinavian Airlines
Deal found 11/12£252
Sun 21/1215:35LHR - TRD
1 stop4h 15mScandinavian Airlines
Tue 6/106:25TRD - LHR
1 stop9h 10mScandinavian Airlines
Deal found 10/12£253
Sun 21/1215:35LHR - TRD
1 stop4h 15mScandinavian Airlines
Thu 8/106:25TRD - LHR
2 stops7h 30mScandinavian Airlines
Deal found 10/12£256

Find 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 12 December 2025.

Round-trip from

£116

One-way from

£104

Popular in

August

Cheapest in

September

Average price

£252
Scandinavian Airlines
  • Scandinavian Airlines
  • 10/2-13/2
  • 2 total stops
  • 12h 55m total
  • London to Trondheim
Search Deals
Scandinavian Airlines
  • Scandinavian Airlines
  • 22/2
  • 2 total stops
  • 12h 00m total
  • London to Trondheim
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 12 December 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

Tue 10/2

15:35-21:40

1 stop5h 05m

Trondheim Vaernes

Fri 13/2

07:45-14:35

1 stop7h 50m

£116

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Mon 2/2

07:05-12:30

1 stop4h 25m

Trondheim Vaernes

Sun 8/2

10:00-14:35

1 stop5h 35m

£121

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Mon 9/2

07:05-12:30

1 stop4h 25m

Trondheim Vaernes

Fri 13/2

10:35-16:25

1 stop6h 50m

£125

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Mon 9/2

07:05-12:30

1 stop4h 25m

Trondheim Vaernes

Sun 15/2

19:10-21:20

1 stop27h 10m

£125

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Sat 25/4

10:35-15:45

1 stop4h 10m

Trondheim Vaernes

Wed 29/4

13:00-16:25

1 stop4h 25m

£132

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Mon 26/1

06:40-14:20

1 stop6h 40m

Trondheim Vaernes

Mon 2/2

07:45-14:35

1 stop7h 50m

£140

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Mon 2/2

07:05-12:30

1 stop4h 25m

Trondheim Vaernes

Fri 6/2

18:30-14:35

2 stops21h 05m

£140

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Wed 22/4

15:35-21:25

1 stop4h 50m

Trondheim Vaernes

Sun 26/4

09:40-16:25

1 stop7h 45m

£152

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Sun 22/2

21:05-10:05

2 stops12h 00m

£104

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Sun 15/2

17:00-07:50

2 stops13h 50m

£116

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Showing 1-10 of 16 results
1
2

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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Trondheim (average of £96). Flying from London Heathrow Airport to Trondheim in August is currently the most expensive (average of £261). 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 12 December 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 44% 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 12 December 2025.
Check out reviews from past customers who have flown with Scandinavian 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.
Scandinavian Airlines
7.4
Good
1,605 reviews
Check prices

Crew

8.0

Food

6.7

Overall

7.4

Entertainment

6.7

Comfort

7.3

Boarding

7.6

Reviews

1 / 20
8.0
Excellent

Scott,Sept 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,605 reviews
Scandinavian Airlines
7.4
Good
1,605 reviews
Check prices

Crew

8.0

Food

6.7

Overall

7.4

Entertainment

6.7

Comfort

7.3

Boarding

7.6

Reviews

1 / 20
8.0
Excellent

Scott,Sept 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

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 1 airline. Trondheim Vaernes is conveniently located just 16.4 mi from Trondheim’s city center.

  • How long is the flight from London Heathrow Airport to Trondheim?

    A quick flight from London Heathrow Airport to Trondheim can take about 5h 05m. Scandinavian Airlines provides one of the quickest options available for as low as £116. The distance between London Heathrow Airport and Trondheim is about 926 mi.

  • What is the cheapest airline to fly from London Heathrow Airport to Trondheim round-trip?

    Flying on Scandinavian Airlines is currently your cheapest option to Trondheim, with prices starting at £111. You may be able to fly from London Heathrow Airport to Trondheim for 45% less than the average price by searching for this airline.

  • 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Trondheim (average of £96). Flying from London Heathrow Airport to Trondheim in August is currently the most expensive (average of £261). 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

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Top airline flying from Heathrow to Trondheim

Discover the top airline 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£111Average£168FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

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

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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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