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Flights from Seattle to Tromso

Seattle to Tromso Flight Information

The approximate distance between Seattle and Tromso is 6,613.98 km. According to Trip.com data, travel demand hits its peak in August.

Cheapest one-way
US$514
Lufthansa Lufthansa SEA-TOS 16h · 1 stop Thu, Aug 27
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Cheapest round-trip
US$1,013
Lufthansa Lufthansa SEA-TOS 15h 20m · 2 stops Thu, Oct 8 - Thu, Oct 15
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Recommended airlines
Lufthansa Lufthansa Cheapest · From US$514
When to fly
December
Cheapest
August
Peak season
Route details
6,613.98 km
Flight distance

Search cheap flights from Seattle to Tromso in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$514, and round-trip tickets start at US$1,013.

      • SEA 14:10
        15h 20m
        1 stop
        TOS 14:30
        Seattle - Tromso | Thu, Oct 8 | Lufthansa
        TOS 15:20
        30h
        1 stop
        SEA 12:20
        Tromso - Seattle | Thu, Oct 15 | Lufthansa
        US$1,013 US$2,100
        52% off
        52% off
        US$2,100 US$1,013
      • SEA 14:10
        15h 20m
        1 stop
        TOS 14:30
        Seattle - Tromso | Sun, Aug 30 | Lufthansa
        TOS 15:20
        29h 35m
        1 stop
        SEA 11:55
        Tromso - Seattle | Sat, Sep 5 | Lufthansa
        US$1,087 US$2,100
        48% off
        48% off
        US$2,100 US$1,087
      • SEA 14:10
        15h 25m
        1 stop
        TOS 14:35
        Seattle - Tromso | Mon, Sep 28 | Lufthansa
        TOS 15:20
        29h 35m
        1 stop
        SEA 11:55
        Tromso - Seattle | Mon, Oct 5 | Lufthansa
        US$1,117 US$2,100
        47% off
        47% off
        US$2,100 US$1,117
      • SEA 14:10
        15h 25m
        1 stop
        TOS 14:35
        Seattle - Tromso | Mon, Aug 31 | Lufthansa
        TOS 16:00
        28h 55m
        1 stop
        SEA 11:55
        Tromso - Seattle | Sun, Sep 6 | Lufthansa
        US$1,130
        46% off
        US$2,100 US$1,130
      • SEA 14:10
        15h 25m
        1 stop
        TOS 14:35
        Seattle - Tromso | Mon, Sep 14 | Lufthansa
        TOS 15:25
        29h 30m
        1 stop
        SEA 11:55
        Tromso - Seattle | Tue, Sep 22 | Lufthansa
        US$1,181
        44% off
        US$2,100 US$1,181
      • SEA 14:10
        15h 20m
        1 stop
        TOS 14:30
        Seattle - Tromso | Thu, Aug 13 | Lufthansa
        TOS 15:20
        29h 35m
        1 stop
        SEA 11:55
        Tromso - Seattle | Thu, Aug 20 | Lufthansa
        US$1,181
        44% off
        US$2,100 US$1,181
      • SEA 14:10
        15h 20m
        1 stop
        TOS 14:30
        Seattle - Tromso | Fri, Sep 11 | Lufthansa
        TOS 15:20
        29h 35m
        1 stop
        SEA 11:55
        Tromso - Seattle | Fri, Sep 18 | Lufthansa
        US$1,284
        39% off
        US$2,100 US$1,284
      • SEA 14:10
        15h 20m
        1 stop
        TOS 14:30
        Seattle - Tromso | Sun, Aug 16 | Lufthansa
        TOS 15:20
        29h 35m
        1 stop
        SEA 11:55
        Tromso - Seattle | Sat, Aug 22 | Lufthansa
        US$1,286
        39% off
        US$2,100 US$1,286
      • SEA 15:55
        34h 25m
        1 stop
        TOS 11:20
        Seattle - Tromso | Mon, Aug 17 | Scandinavian Airlines
        TOS 15:00
        31h 45m
        1 stop
        SEA 13:45
        Tromso - Seattle | Sun, Aug 23 | Scandinavian Airlines
        US$1,653
        21% off
        US$2,100 US$1,653
      • SEA 17:40
        31h 25m
        1 stop
        TOS 10:05
        Seattle - Tromso | Wed, Sep 30 | Finnair
        TOS 10:30
        14h 30m
        1 stop
        SEA 16:00
        Tromso - Seattle | Wed, Oct 7 | Finnair
        US$1,827
        13% off
        US$2,100 US$1,827
      • SEA 13:00
        17h 25m
        1 stop
        TOS 14:00
        Seattle - Tromso | Fri, Aug 14 | Normal Airline
        TOS 15:00
        6h
        Nonstop
        SEA 16:00
        Tromso - Seattle | Sun, Aug 16 | Normal Airline
        More cheap flights
        More cheap flights
      • SEA 14:10
        16h
        1 stop
        TOS 15:10
        Seattle - Tromso | Thu, Aug 27 | Lufthansa
        US$514 US$2,840
        82% off
        82% off
        US$2,840 US$514
      • SEA 14:10
        15h 20m
        1 stop
        TOS 14:30
        Seattle - Tromso | Fri, Sep 4 | Lufthansa
        US$654 US$2,840
        77% off
        77% off
        US$2,840 US$654
      • SEA 14:10
        16h
        1 stop
        TOS 15:10
        Seattle - Tromso | Thu, Aug 13 | Lufthansa
        US$689 US$2,840
        76% off
        76% off
        US$2,840 US$689
      • SEA 17:40
        31h 25m
        1 stop
        TOS 10:05
        Seattle - Tromso | Fri, Sep 4 | British Airways
        US$826
        71% off
        US$2,840 US$826
      • SEA 17:40
        31h 25m
        1 stop
        TOS 10:05
        Seattle - Tromso | Fri, Sep 4 | Iberia
        US$832
        71% off
        US$2,840 US$832
      • SEA 15:55
        34h 10m
        1 stop
        TOS 11:05
        Seattle - Tromso | Fri, Sep 4 | Scandinavian Airlines
        US$2,470
        13% off
        US$2,840 US$2,470
      • SEA 13:00
        17h 25m
        1 stop
        TOS 14:00
        Seattle - Tromso | Fri, Aug 14 | Normal Airline
        More cheap flights
        More cheap flights

Frequently Asked Questions

  • What are the cheapest flights from Seattle to Tromso (SEA-TOS)?

    Based on Trip.com data, Lufthansa offers one-way fares as low as US$514 on Cheapest nonstop routes (e.g. SEA to TOS on Thu, Aug 27), while Lufthansa offers Cheapest nonstop round-trips from US$1,013 departing on Thu, Oct 8 and returning on Thu, Oct 15.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Tromso 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 Seattle to Tromso, 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 Thu, Aug 27, with one-way flights priced at just US$514.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Lufthansa.
    · 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 Tromso travel is around August.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seattle to Tromso is December, when demand for travel is lower.
  • After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Seattle to Tromso on August 21, 2026 with Scandinavian Airlines, with prices starting at US$937.
  • The time difference between Tromso and Seattle is 9h.
  • 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Seattle to Tromso is US$1,120. Fares vary by travel date, airline and availability.
  • Enter Seattle and Tromso, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

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Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

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Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.