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Flights from Helsinki to Trondheim

Cheapest airlines flights from Helsinki to Trondheim

You can pick from 1 carriers that fly from Helsinki to Trondheim including Scandinavian Airlines, , , with Scandinavian Airlines serving cheapest ticket on this route.
Scandinavian Airlines logo Scandinavian Airlines

Search cheap flights from Helsinki to Trondheim in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$100, and round-trip tickets start at US$165.

      • HEL 14:10
        20h 40m
        1 stop
        TRD 09:50
        Helsinki - Trondheim | Thu, Feb 5 | Norwegian
        TRD 10:25
        4h
        1 stop
        HEL 15:25
        Trondheim - Helsinki | Thu, Feb 12 | Scandinavian Airlines
        US$165 US$249
        34% OFF
        34% OFF
        US$249 US$165
      • HEL 11:05
        4h 15m
        1 stop
        TRD 14:20
        Helsinki - Trondheim | Thu, Jan 22 | Scandinavian Airlines
        TRD 10:25
        4h
        1 stop
        HEL 15:25
        Trondheim - Helsinki | Thu, Jan 29 | Scandinavian Airlines
        US$166 US$249
        34% OFF
        34% OFF
        US$249 US$166
      • HEL 11:05
        4h 15m
        1 stop
        TRD 14:20
        Helsinki - Trondheim | Wed, Jan 28 | Scandinavian Airlines
        TRD 10:25
        4h
        1 stop
        HEL 15:25
        Trondheim - Helsinki | Thu, Jan 29 | Scandinavian Airlines
        US$166 US$249
        33% OFF
        33% OFF
        US$249 US$166
      • HEL 07:00
        8h 20m
        1 stop
        TRD 14:20
        Helsinki - Trondheim | Mon, Feb 2 | Scandinavian Airlines
        TRD 10:25
        12h 20m
        1 stop
        HEL 23:45
        Trondheim - Helsinki | Wed, Feb 4 | Scandinavian Airlines
        US$166
        33% OFF
        US$249 US$166
      • HEL 11:05
        4h 15m
        1 stop
        TRD 14:20
        Helsinki - Trondheim | Fri, Jan 16 | Scandinavian Airlines
        TRD 10:25
        4h
        1 stop
        HEL 15:25
        Trondheim - Helsinki | Mon, Jan 19 | Scandinavian Airlines
        US$166
        33% OFF
        US$249 US$166
      • HEL 11:05
        4h 15m
        1 stop
        TRD 14:20
        Helsinki - Trondheim | Wed, Jan 21 | Scandinavian Airlines
        TRD 10:25
        4h
        1 stop
        HEL 15:25
        Trondheim - Helsinki | Wed, Jan 28 | Scandinavian Airlines
        US$175
        30% OFF
        US$249 US$175
      • HEL 11:05
        4h 15m
        1 stop
        TRD 14:20
        Helsinki - Trondheim | Thu, Jan 8 | Scandinavian Airlines
        TRD 05:30
        8h 55m
        1 stop
        HEL 15:25
        Trondheim - Helsinki | Sun, Jan 11 | Scandinavian Airlines
        US$175
        30% OFF
        US$249 US$175
      • HEL 21:00
        4h 40m
        1 stop
        TRD 00:40
        Helsinki - Trondheim | Mon, Jan 12 | Scandinavian Airlines
        TRD 10:25
        4h
        1 stop
        HEL 15:25
        Trondheim - Helsinki | Mon, Jan 19 | Scandinavian Airlines
        US$176
        28% OFF
        US$249 US$176
      • HEL 07:00
        8h 20m
        1 stop
        TRD 14:20
        Helsinki - Trondheim | Fri, Feb 6 | Scandinavian Airlines
        TRD 19:10
        3h 45m
        1 stop
        HEL 23:55
        Trondheim - Helsinki | Sun, Feb 8 | Scandinavian Airlines
        US$177
        28% OFF
        US$249 US$177
      • HEL 07:00
        10h 35m
        1 stop
        TRD 16:35
        Helsinki - Trondheim | Thu, Jan 15 | KLM
        TRD 06:15
        10h 10m
        1 stop
        HEL 17:25
        Trondheim - Helsinki | Mon, Jan 19 | KLM
        US$182
        27% OFF
        US$249 US$182
      • HEL 13:00
        17h 25m
        1 stop
        TRD Invalid Date
        Helsinki - Trondheim | Sun, Dec 14 | Normal Airline
        TRD 15:00
        6h
        Nonstop
        HEL 16:00
        Trondheim - Helsinki | Tue, Dec 16 | Normal Airline
        Find More Flights
        Find More Flights
      • HEL 07:00
        8h 20m
        1 stop
        TRD 14:20
        Helsinki - Trondheim | Fri, Feb 6 | Scandinavian Airlines
        US$100 US$200
        50% OFF
        50% OFF
        US$200 US$100
      • HEL 14:05
        9h 50m
        1 stop
        TRD 22:55
        Helsinki - Trondheim | Fri, Feb 6 | KLM
        US$103 US$200
        49% OFF
        49% OFF
        US$200 US$103
      • HEL 16:40
        18h 20m
        1 stop
        TRD 10:00
        Helsinki - Trondheim | Fri, Feb 6 | Norwegian
        US$128 US$200
        36% OFF
        36% OFF
        US$200 US$128
      • HEL 07:40
        7h 40m
        1 stop
        TRD 14:20
        Helsinki - Trondheim | Tue, Jan 6 | Norwegian
        US$131
        35% OFF
        US$200 US$131
      • HEL 06:15
        9h 15m
        1 stop
        TRD 14:30
        Helsinki - Trondheim | Sat, Dec 13 | Scandinavian Airlines
        US$132
        34% OFF
        US$200 US$132
      • HEL 06:15
        9h 15m
        1 stop
        TRD 14:30
        Helsinki - Trondheim | Fri, Dec 12 | Scandinavian Airlines
        US$132
        34% OFF
        US$200 US$132
      • HEL 19:50
        19h 30m
        1 stop
        TRD 14:20
        Helsinki - Trondheim | Mon, Jan 5 | Norwegian
        US$139
        31% OFF
        US$200 US$139
      • HEL 06:15
        4h 25m
        1 stop
        TRD 09:40
        Helsinki - Trondheim | Sun, Dec 14 | Scandinavian Airlines
        US$143
        28% OFF
        US$200 US$143
      • HEL 19:50
        15h 10m
        1 stop
        TRD 10:00
        Helsinki - Trondheim | Fri, Feb 6 | Norwegian Air Sweden
        US$144
        28% OFF
        US$200 US$144
      • HEL 21:45
        13h
        1 stop
        TRD 09:45
        Helsinki - Trondheim | Thu, Dec 25 | Scandinavian Airlines
        US$146
        27% OFF
        US$200 US$146
      • HEL 13:00
        17h 25m
        1 stop
        TRD Invalid Date
        Helsinki - Trondheim | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights

Displayed flight fares from Helsinki to Trondheim are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Helsinki to Trondheim Flight Details

The distance between Helsinki and Trondheim is about 842.52 km. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight priceUS$100
Cheapest return ticket priceUS$165
Cheapest monthOctober
Peak season for travelJuly
Flight distance842.52 km
Popular airlineScandinavian Airlines

When is the cheapest time to book flights from Helsinki to Trondheim?

The cheapest time to fly from Helsinki to Trondheim: Feb 1 to Feb 8 — one-way prices start at US$99.

Cheapest flights
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  • 714
  • 1421
  • 2128

  • Jan

    284
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  • 1118
  • 1825

  • Feb

    251
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  • Mar

    221
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Helsinki to Trondheim (HEL-TRD)?

    Based on Trip.com data, Scandinavian Airlines offers one-way fares as low as US$100 on Cheapest nonstop routes (e.g. HEL to TRD on Fri, Feb 6), while Norwegian offers Cheapest nonstop round-trips from US$165 departing on Thu, Feb 5 and returning on Thu, Feb 12.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Helsinki to Trondheim is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Helsinki to Trondheim, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Feb 6, with one-way flights priced at just US$100.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Scandinavian Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Trondheim travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Helsinki to Trondheim is October, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Helsinki to Trondheim on December 12, 2025 with Scandinavian Airlines, with prices starting at US$215.
  • The time difference between Trondheim and Helsinki is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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