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Trondheim

$488+ Cheap flights from San Francisco (SFO) to Trondheim (TRD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — TRD
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from San Francisco to Trondheim

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 October 29, 2025.

Round-trip from

$488
(Scandinavian Airlines)

Popular in

November

Cheapest in

September

Average price

$1,099
From San Francisco to Trondheim Vaernes
Search Deals
Highest demand for flights based on searches. 37% potential increase in price ($677 potential increase over avg. RT price).
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Cheapest flight prices on average. 21% potential price decrease ($196 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from San Francisco to Trondheim

Cheapest flights from San Francisco to Trondheim
Explore the most affordable flight options available from San Francisco to Trondheim. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This KLM deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:55 pmSFO - TRD
1 stop17h 40mKLM
Tue 11/186:15 amTRD - SFO
1 stop14h 35mKLM
Deal found 10/28$515
This Scandinavian Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:00 amSFO - TRD
2 stops17h 40mScandinavian Airlines
Tue 11/1810:35 amTRD - SFO
3 stops18h 51mScandinavian Airlines
Deal found 10/28$758
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:40 pmSFO - TRD
3 stops34h 00mMultiple Airlines
Tue 11/185:30 amTRD - SFO
3 stops24h 52mMultiple Airlines
Deal found 10/28$840

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from San Francisco to Trondheim that are best for you.

Fly from

San Francisco

Fly to

Trondheim

Route

Depart

Return

Price

San FranciscoTrondheim

SFO - TRD

SFOTRD

San Francisco

Thu 1/15

4:40 pm-9:40 am

1 stop32h 00m

Trondheim Vaernes

Mon 1/19

10:20 am-2:35 pm

1 stop13h 15m

$488

San FranciscoTrondheim

SFO - TRD

SFOTRD

San Francisco

Tue 11/11

1:55 pm-4:35 pm

1 stop17h 40m

Trondheim Vaernes

Tue 11/18

6:15 am-11:50 am

1 stop14h 35m

$515

San FranciscoTrondheim

SFO - TRD

SFOTRD

San Francisco

Tue 11/11

7:00 am-9:40 am

2 stops17h 40m

Trondheim Vaernes

Tue 11/18

10:35 am-8:26 pm

3 stops18h 51m

$758

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Best time to book a flight from San Francisco to Trondheim

Have a flexible travel schedule? Discover the best time to fly to Trondheim from San Francisco with our price prediction graph.
Estimated round-trip 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 San Francisco to Trondheim

What is the cheapest month to book a flight from San Francisco to Trondheim?

Currently, September is the cheapest month in which you can book a flight from San Francisco to Trondheim (average of $609). Flying from San Francisco to Trondheim in November is currently the most expensive (average of $3,265). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to TRD?

Find hourly flight availability from San Francisco to Trondheim. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

It’s typically best to fly out from San Francisco to Trondheim in the evening. Doing so could potentially save you 50% on the flight price compared to flying at noon, which is usually more expensive.

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 October 29, 2025.
See what other customers who have flown with Scandinavian Airlines from San Francisco to Trondheim have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,545 reviews

Overall

7.4

Comfort

7.3

Entertainment

6.6

Food

6.6

Boarding

7.6

Crew

8.0

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Scandinavian Airlines
7.4
Good
1,545 reviews
Scandinavian Airlines
7.4
Good
1,545 reviews

Overall

7.4

Comfort

7.3

Entertainment

6.6

Food

6.6

Boarding

7.6

Crew

8.0

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Trondheim. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Francisco to Trondheim?

    For as low as $488, Scandinavian Airlines can have you in Trondheim from San Francisco in 32h. There are 4995 mi between San Francisco and Trondheim.

  • What is the cheapest airline to fly from San Francisco to Trondheim round-trip?

    Scandinavian Airlines, at $611, was found to be the cheapest airline from San Francisco to Trondheim.. Scandinavian Airlines is currently priced 45% below the average price you’ll pay for this route.

  • Can I find deals for flights from San Francisco to Trondheim that include hotel bookings?

    Yes. In addition to deals on San Francisco to Trondheim flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Trondheim?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Trondheim.

  • Can I find deals for business class flights from San Francisco to Trondheim?

    Yes. Cheapflights offers flight deals from San Francisco 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.

  • What is the cheapest month to book a flight from San Francisco to Trondheim?

    Currently, September is the cheapest month in which you can book a flight from San Francisco to Trondheim (average of $609). Flying from San Francisco to Trondheim in November is currently the most expensive (average of $3,265). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top airline flying from San Francisco to Trondheim

Discover the top airline that operate flights from San Francisco 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 2,558,603 searches. Data last updated October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$611Average$1,027FlexibilityNo cancel feeOn-time77%

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