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$444+ Cheap flights from Trondheim (TRD) to San Francisco (SFO)

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
TRD — SFO
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
1 adult, Economy
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Cheap flight deals from Trondheim to San Francisco

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

Round-trip from

$444
(Ticket)

Popular in

June

Cheapest in

February

Average price

$998
From Trondheim Vaernes to San Francisco
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($264 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Trondheim to San Francisco

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

This Ticket deal was found by Cheapflights users on 7/27. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/46:00 amTRD - SFO
1 stop14h 45mKLM
lun. 9/81:45 pmSFO - TRD
1 stop24h 05mKLM
Deal found 7/27$444
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/119:00 pmTRD - SFO
2 stops28h 30mScandinavian Airlines
jue. 9/187:40 pmSFO - TRD
1 stop19h 55mScandinavian Airlines
Deal found 7/28$496
This Travelis deal was found by Cheapflights users on 7/27. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/46:00 amTRD - SFO
1 stop14h 45mMultiple Airlines
lun. 9/87:05 amSFO - TRD
2 stops22h 15mMultiple Airlines
Deal found 7/27$518

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trondheim to San Francisco 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 julio 29, 2025.
Use the filters below to find and compare flights from Trondheim to San Francisco that are best for you.

Fly from

Trondheim

Fly to

San Francisco

Route

Depart

Return

Price

TrondheimSan Francisco

TRD - SFO

TRDSFO

Trondheim Vaernes

jue. 9/4

6:00 am-11:45 am

1 stop14h 45m

San Francisco

lun. 9/8

1:45 pm-10:50 pm

1 stop24h 05m

$444

TrondheimSan Francisco

TRD - SFO

TRDSFO

Trondheim Vaernes

jue. 9/11

9:00 pm-4:30 pm

2 stops28h 30m

San Francisco

jue. 9/18

7:40 pm-12:35 am

1 stop19h 55m

$496

TrondheimSan Francisco

TRD - SFO

TRDSFO

Trondheim Vaernes

jue. 9/4

6:00 am-11:45 am

1 stop14h 45m

San Francisco

lun. 9/8

7:05 am-2:20 pm

2 stops22h 15m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Trondheim to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Trondheim 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 Trondheim to San Francisco

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

Currently, January is the cheapest month in which you can book a flight from Trondheim to San Francisco (average of $276). Flying from Trondheim to San Francisco in June is currently the most expensive (average of $358). 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.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated julio 29, 2025.
Get a feel of what it's like to fly with KLM and Scandinavian Airlines from Trondheim to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,383 reviews

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,383 reviews
KLM
7.8
Good
1,383 reviews

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Scandinavian Airlines
7.3
Good
1,449 reviews
KLM
7.8
Good
1,383 reviews

Comfort

7.7

Entertainment

7.1

Boarding

7.8

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

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

  • What are the cheapest airlines flying from Trondheim to San Francisco round-trip?

    Cheapflights users have booked flights from Trondheim to San Francisco round-trip from $444. Another airline that can offer you cheap pricing is Scandinavian Airlines. These flights start at 37% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Trondheim to San Francisco 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 Trondheim to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Trondheim to San Francisco (average of $276). Flying from Trondheim to San Francisco in June is currently the most expensive (average of $358). 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.

See more FAQs

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