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Cheap flights from London Heathrow Airport to Trondheim from £87

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TRD
1 Sep — 8 Sep1
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 2 August 2026.

Tue 15/911:45
LHR
-
TRD
1 stop10h 05m
KLM
Tue 22/917:10
TRD
-
LHR
1 stop4h 45m
KLM
Deal found 31/7£145
Thu 3/906:30
LHR
-
TRD
1 stop15h 20m
KLM
Thu 10/917:10
TRD
-
LHR
1 stop4h 45m
KLM
Deal found 29/7£146
Wed 26/811:45
LHR
-
TRD
1 stop10h 05m
KLM
Wed 2/917:10
TRD
-
LHR
1 stop16h 50m
KLM
Deal found 29/7£148
Tue 18/820:55
LHR
-
TRD
1 stop18h 40m
KLM
Tue 1/912:10
TRD
-
LHR
1 stop20h 30m
KLM
Deal found 1/8£149
Thu 27/807:05
LHR
-
TRD
1 stop7h 15m
Scandinavian Airlines
Mon 31/814:45
TRD
-
LHR
1 stop19h 50m
Scandinavian Airlines
Deal found 28/7£157
Wed 2/908:40
LHR
-
TRD
1 stop6h 55m
KLM
Thu 10/917:10
TRD
-
LHR
1 stop4h 45m
KLM
Deal found 29/7£158
Thu 10/908:40
LHR
-
TRD
1 stop6h 55m
KLM
Mon 14/912:10
TRD
-
LHR
1 stop9h 45m
KLM
Deal found 28/7£159
Fri 4/917:10
LHR
-
TRD
1 stop4h 40m
KLM
Mon 7/912:10
TRD
-
LHR
1 stop8h 15m
KLM
Deal found 29/7£164
Thu 3/909:55
LHR
-
TRD
1 stop5h 40m
KLM
Mon 7/917:10
TRD
-
LHR
1 stop4h 45m
KLM
Deal found 29/7£165
Mon 7/1207:05
LHR
-
TRD
1 stop7h 55m
Scandinavian Airlines
Fri 11/1218:35
TRD
-
LHR
1 stop16h 00m
Scandinavian Airlines
Deal found 31/7£168

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 2 August 2026.

Round-trip from

£145

One-way from

£87

Popular in

June

Cheapest in

April

Average price

£277
KLM
  • KLM
  • 15/9-22/9
  • 2 total stops
  • 14h 50m total
  • London to Trondheim
Search Deals
Scandinavian Airlines
  • Scandinavian Airlines
  • 14/10
  • 1 total stop
  • 9h 50m total
  • London to Trondheim
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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 2 August 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Trondheim that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Tue 15/9

11:45-22:50

1 stop10h 05m

Trondheim Vaernes

Tue 22/9

17:10-20:55

1 stop4h 45m

£159

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Sat 12/9

07:25-17:10

1 stop8h 45m

Trondheim Vaernes

Sat 19/9

17:55-07:40

2 stops14h 45m

£202

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Fri 21/8

06:55-17:20

2 stops9h 25m

Trondheim Vaernes

Sun 23/8

18:30-07:40

1 stop14h 10m

£209

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Fri 9/10

07:05-20:55

1 stop12h 50m

Trondheim Vaernes

Mon 12/10

07:55-16:25

1 stop9h 30m

£211

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Sun 13/9

20:25-17:20

2 stops19h 55m

Trondheim Vaernes

Sun 20/9

17:55-22:10

1 stop5h 15m

£220

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Fri 4/9

06:55-17:20

2 stops9h 25m

Trondheim Vaernes

Sun 6/9

18:30-07:40

1 stop14h 10m

£233

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Fri 4/9

07:05-17:55

1 stop9h 50m

Trondheim Vaernes

Tue 8/9

13:00-21:35

1 stop9h 35m

£237

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Tue 18/8

07:05-21:35

1 stop13h 30m

Trondheim Vaernes

Sun 30/8

08:30-14:35

1 stop7h 05m

£242
Cheapest one-way

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Wed 14/10

07:05-17:55

1 stop9h 50m

£87

LondonTrondheim

LHR - TRD

LHRTRD

London Heathrow

Wed 16/9

11:45-22:50

1 stop10h 05m

£93

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 19 resultsSorted by cheapest first
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

How much does it cost for a return flight from London Heathrow Airport to Trondheim?

Airfare is below average for this route at the moment.

London Heathrow Airport to Trondheim flights typically cost between £277 and £331 in September.
The cheapest return price found within the last 5 days was £145 on KLM (15 Sept–22 Sept).

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 2 August 2026.
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
1,912 reviews
Check prices

Boarding

7.7

Entertainment

6.8

Comfort

7.3

Food

6.8

Crew

8.0

Overall

7.4

Reviews

1 / 20
6.0
Good

lisa,May 2026

ALC - OSL

Uncomfortable seats on packed flight. There was plenty of overhead bin space. Cabin crew weren't friendly but the cockpit pointed out things we were flying over, like Paris. Cup of coffee, tea or water for 3.5hrs. Good de-planing from both ends.
Scandinavian Airlines
7.4
Good
1,912 reviews
Scandinavian Airlines
7.4
Good
1,912 reviews
Check prices

Boarding

7.7

Entertainment

6.8

Comfort

7.3

Food

6.8

Crew

8.0

Overall

7.4

Reviews

1 / 20
6.0
Good

lisa,May 2026

ALC - OSL

Uncomfortable seats on packed flight. There was plenty of overhead bin space. Cabin crew weren't friendly but the cockpit pointed out things we were flying over, like Paris. Cup of coffee, tea or water for 3.5hrs. Good de-planing from both ends.

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 8h 45m. Lufthansa provides one of the quickest options available for as low as £202. 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 £117. You may be able to fly from London Heathrow Airport to Trondheim for 59% 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.

See more FAQs

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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 2 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£117Average£192FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines 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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