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Cheap flight deals from Seattle to Trondheim Starting at €431

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip
      • SEA05:50 pm
        13h 40m
        1 stop
        TRD04:30 pm
        Sun, Mar 30|Seattle - Trondheim|KLM
        €431€783
        45% OFF
        45% OFF
        €783€431

        Choose KLM flights from Seattle to Trondheim. The one-way connecting flight with KLM departs from Seattle-Tacoma International Airport on Sun, Mar 30, arriving at Trondheim Vaernes Airport. One-way Prices start from €431 including taxes and charges.

      • SEA02:09 pm
        17h 31m
        1 stop
        TRD04:40 pm
        Wed, Feb 26|Seattle - Trondheim|Delta Air Lines
        €518€783
        34% OFF
        34% OFF
        €783€518

        Choose Delta Air Lines flights from Seattle to Trondheim. The one-way connecting flight with Delta Air Lines departs from Seattle-Tacoma International Airport on Wed, Feb 26, arriving at Trondheim Vaernes Airport. One-way Prices start from €518 including taxes and charges.

      • SEA01:30 pm
        22h
        1 stop
        TRD08:30 pm
        Sun, Mar 30|Seattle - Trondheim|British Airways
        €520€783
        34% OFF
        34% OFF
        €783€520

        Choose British Airways flights from Seattle to Trondheim. The one-way connecting flight with British Airways departs from Seattle-Tacoma International Airport on Sun, Mar 30, arriving at Trondheim Vaernes Airport. One-way Prices start from €520 including taxes and charges.

      • SEA01:55 pm
        23h 55m
        1 stop
        TRD10:50 pm
        Fri, Apr 4|Seattle - Trondheim|KLM
        €561
        €561

        Choose KLM flights from Seattle to Trondheim. The one-way connecting flight with KLM departs from Seattle-Tacoma International Airport on Fri, Apr 4, arriving at Trondheim Vaernes Airport. One-way Prices start from €561 including taxes and charges.

      • SEA05:45 pm
        20h 50m
        1 stop
        TRD11:35 pm
        Wed, Feb 26|Seattle - Trondheim|Virgin Atlantic
        €572
        €572

        Choose Virgin Atlantic flights from Seattle to Trondheim. The one-way connecting flight with Virgin Atlantic departs from Seattle-Tacoma International Airport on Wed, Feb 26, arriving at Trondheim Vaernes Airport. One-way Prices start from €572 including taxes and charges.

      • SEA06:50 pm
        19h 45m
        1 stop
        TRD11:35 pm
        Wed, Feb 26|Seattle - Trondheim|Iberia
        €588
        €588

        Choose Iberia flights from Seattle to Trondheim. The one-way connecting flight with Iberia departs from Seattle-Tacoma International Airport on Wed, Feb 26, arriving at Trondheim Vaernes Airport. One-way Prices start from €588 including taxes and charges.

      • SEA06:50 pm
        19h 45m
        1 stop
        TRD11:35 pm
        Wed, Feb 26|Seattle - Trondheim|British Airways
        €595
        €595

        Choose British Airways flights from Seattle to Trondheim. The one-way connecting flight with British Airways departs from Seattle-Tacoma International Airport on Wed, Feb 26, arriving at Trondheim Vaernes Airport. One-way Prices start from €595 including taxes and charges.

      • SEA01:00 pm
        3h 5m
        Nonstop
        TRD02:00 pm
        Sat, Mar 1|Seattle - Trondheim|KLM
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Seattle to Trondheim Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL142

    Delta Air Lines

    02:05 pm

    SEA

    11.0h

    09:05 am

    AMS

    SMTWTFS
    Search

  2. DL9660

    Delta Air Lines

    02:20 pm

    AMS

    2.2h

    04:30 pm

    TRD

    SMTWTFS

  3. AF5597

    Air France

    02:05 pm

    SEA

    10.0h

    09:05 am

    AMS

    SMTWTFS
    Search

  4. KL1153

    KLM

    02:20 pm

    AMS

    2.2h

    04:30 pm

    TRD

    SMTWTFS

  5. KL6032

    KLM

    02:10 pm

    SEA

    9.8h

    09:00 am

    AMS

    SMTWTFS
    Search

  6. KL1153

    KLM

    02:20 pm

    AMS

    2.2h

    04:30 pm

    TRD

    SMTWTFS

  7. UA8718

    United Airlines

    02:20 pm

    SEA

    9.8h

    09:10 am

    FRA

    S-TWTF-
    Search

  8. UA9146

    United Airlines

    10:20 am

    FRA

    2.0h

    12:20 pm

    OSL

    SMTWTFS

  9. DY762

    Norwegian Air Shuttle ASA

    05:00 pm

    OSL

    0.9h

    05:55 pm

    TRD

    SMTWT-S

  10. FI680

    Icelandair

    03:45 pm

    SEA

    7.5h

    06:15 am

    KEF

    SMTWTFS
    Search

  11. FI318

    Icelandair

    07:50 am

    KEF

    2.8h

    11:35 am

    OSL

    SMTWTFS

  12. DY756

    Norwegian Air Shuttle ASA

    02:40 pm

    OSL

    0.9h

    03:35 pm

    TRD

    SMTWT-S

  13. AS280

    Alaska Airlines

    06:11 am

    SEA

    5.3h

    02:29 pm

    EWR

    SMTWT-S
    Search

  14. SK908

    Scandinavian Airlines

    06:30 pm

    EWR

    7.6h

    08:05 am

    OSL

    S--WTFS

  15. SK336

    Scandinavian Airlines

    09:10 am

    OSL

    0.9h

    10:05 am

    TRD

    SMTWT--

  16. BA048

    British Airways

    08:20 pm

    SEA

    9.3h

    01:40 pm

    LHR

    SMTWTFS
    Search

  17. DY1341

    Norwegian Air Shuttle ASA

    01:50 pm

    LGW

    2.5h

    05:20 pm

    TRD

    -M-W--S

  18. IB3506

    Iberia

    08:20 pm

    SEA

    9.3h

    01:40 pm

    LHR

    SMTWTFS
    Search

  19. DY1341

    Norwegian Air Shuttle ASA

    01:50 pm

    LGW

    2.5h

    05:20 pm

    TRD

    -M-W--S

  20. BA048

    British Airways

    08:20 pm

    SEA

    9.3h

    01:40 pm

    LHR

    SMTWTFS
    Search

  21. BA768

    British Airways

    07:00 pm

    LHR

    2.3h

    10:15 pm

    OSL

    -MT--F-

  22. DY776

    Norwegian Air Shuttle ASA

    10:00 pm

    OSL

    0.9h

    10:55 pm

    TRD

    SMTW--S

  23. IB3506

    Iberia

    08:20 pm

    SEA

    9.3h

    01:40 pm

    LHR

    SMTWTFS
    Search

  24. IB3672

    Iberia

    07:45 am

    LHR

    2.2h

    10:55 am

    OSL

    -MT--F-

  25. DY776

    Norwegian Air Shuttle ASA

    10:00 pm

    OSL

    0.9h

    10:55 pm

    TRD

    SMTW--S
Find more flights and airlines

When is the cheapest time to fly from Seattle to Trondheim?

We monitor flight fares to help you find the best deals effortlessly

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

Frequently Asked Questions

  • When are flight tickets from Seattle (SEA) to Trondheim (TRD) the cheapest?

    Airlines adjust prices for flights from Seattle to Trondheim based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Seattle (SEA) to Trondheim (TRD) cost?

    According to Trip.com's data, the lowest price is around €1,186.

  • What is the transportation method from the main airport to downtown in Trondheim?

    • The distance from Trondheim Vaernes Airport to downtown is about 26 km. It takes about 40 minutes by taxi.

How to find a cheap flight from Seattle to Trondheim

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Trondheim. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | Seattle to Trondheim

Cheapest nonstop flight price€431
Off-season for travelFebruary
Peak season for travelApril
Flight distance6,990.78 km
Popular airlineDelta Air Lines

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