SEA - TRD

Find cheap flights from Seattle to Trondheim

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Trondheim

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Trondheim, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Trondheim, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Trondheim (SEA-TRD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Trondheim that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Trondheim

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SEA-TRD
4358 mimulti-stop
Multiple Airlines Logo
TRD-SEA
4358 mimulti-stop
Multiple Airlines
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Booking Insights

KAYAK's insights & trends for Seattle to Trondheim flights

Get data-powered insights and trends into flights from Seattle to Trondheim to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from Seattle to Trondheim?

Percentage of 1-stop round-trip flights from Seattle to Trondheim chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Amsterdam (AMS) is the top choice – 67% of KAYAK users who clicked on 1-stop flights from Seattle to Trondheim picked an itinerary connecting there.

What is the cheapest layover airport when flying from Seattle to Trondheim?

Average round-trip price for 1-stop flights from Seattle to Trondheim clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Copenhagen (CPH) offer the most affordable fares, with an average round-trip price of $766.

Which layover airport offers the shortest total travel time from Seattle to Trondheim?

Shortest average total travel time for 1-stop one-way flights from Seattle to Trondheim via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Copenhagen (CPH) for the shortest journey. The average one-way travel time for flights connecting there is 13h 20m.

Which layover airport has the quickest connection when flying from Seattle to Trondheim?

Average layover duration at different layover airports for 1-stop one-way flights from Seattle to Trondheim, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Copenhagen (CPH) often has the shortest layovers from Seattle to Trondheim, with an average of 1h 51m.

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When to book flights from Seattle to Trondheim

Are your dates flexible? Find out the best times to travel from Seattle to Trondheim based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Trondheim

  • Do I need a passport to fly between Seattle and Trondheim?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Seattle and on arrival in Trondheim.

  • Which aircraft models fly most regularly from Seattle to Trondheim?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Seattle to Trondheim?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Trondheim.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Trondheim?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trondheim from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Trondheim?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Trondheim with an airline and back to Seattle with another airline. Booking your flights between Seattle and TRD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Trondheim?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Trondheim from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Seattle to Trondheim

Information on your arrival and departure airports

Seattle (SEA)
Trondheim (TRD)

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