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$665+ Cheap flights from Santa Rosa (STS) to Oslo

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
STS — OSL
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Santa Rosa to Oslo

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to Oslo (OS1). 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 March 31, 2025.

Round-trip from

$1,237
(American Airlines)

One-way from

$665
(Finnair)

Popular in

June

Cheapest in

October

Average price

$737
From Santa Rosa Sonoma County to Oslo
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One-way flight from Santa Rosa Sonoma County to Oslo
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Highest demand for flights based on searches. 23% potential increase in price ($279 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Santa Rosa to Oslo

Cheapest flights from Santa Rosa to Oslo
Explore the most affordable flight options available from Santa Rosa to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/64:16 pmSTS - OSL
2 stops22h 24mAmerican Airlines
Wed 7/237:40 amOSL - STS
2 stops40h 56mAmerican Airlines
Deal found 3/30$1,237
This Finnair deal was found by Cheapflights users on 3/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/83:05 pmSTS - OSL
2 stops23h 20mFinnair
Tue 7/228:35 amOSL - STS
2 stops24h 09mFinnair
Deal found 3/30$1,411
This Finnair deal was found by Cheapflights users on 3/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/912:30 pmSTS - OSL
2 stops22h 15mMultiple Airlines
Mon 6/238:35 amOSL - STS
2 stops36h 15mMultiple Airlines
Deal found 3/30$1,806

Cheapflights Fare Finder

Customize your flight search to find flights from Santa Rosa to Oslo 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 March 31, 2025.
Use the filters below to find and compare flights from Santa Rosa to Oslo that are best for you.

Fly from

Santa Rosa

Fly to

Oslo

Route

Depart

Return

Price

Santa RosaOslo

STS - OSL

STSOSL

Santa Rosa Sonoma County

Sun 7/6

4:16 pm-11:40 pm

2 stops22h 24m

Oslo Gardermoen

Thu 7/24

7:45 am-12:23 pm

2 stops37h 38m

$1,237

Santa RosaOslo

STS - OSL

STSOSL

Santa Rosa Sonoma County

Tue 7/8

3:05 pm-11:25 pm

2 stops23h 20m

Oslo Gardermoen

Tue 7/22

8:35 am-11:44 pm

2 stops24h 09m

$1,411

Santa RosaOslo

STS - OSL

STSOSL

Santa Rosa Sonoma County

Mon 6/9

12:30 pm-7:45 pm

2 stops22h 15m

Oslo Gardermoen

Mon 6/23

8:35 am-11:50 am

2 stops36h 15m

$1,806

Santa RosaOslo

STS - OSL

STSOSL

Santa Rosa Sonoma County

Mon 7/7

12:20 pm-7:45 pm

2 stops22h 25m

$665

Santa RosaOslo

STS - OSL

STSOSL

Santa Rosa Sonoma County

Sun 5/11

4:21 pm-10:25 am

2 stops33h 04m

$733

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Best time to book a flight from Santa Rosa to Oslo

Have a flexible travel schedule? Discover the best time to fly to Oslo from Santa Rosa 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 Santa Rosa to Oslo

What is the cheapest month to book a flight from Santa Rosa to Oslo?

Currently, November is the cheapest month in which you can book a flight from Santa Rosa to Oslo (average of $567). Flying from Santa Rosa to Oslo in June is currently the most expensive (average of $1,110). 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.

Rainfall in Oslo by month

Plan your trip to Oslo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Oslo ranges from 1.6 - 3.5 inches per month. August is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Oslo when rainfall is around 1.6 in.

Temperature in Oslo by month

Plan your trip to Oslo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Oslo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

Reviews of airlines servicing Oslo

Get insights into the airlines that provide service to Oslo. 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 Oslo. Reviews last updated March 31, 2025.
Finnair
7.6
Good
1,267 reviews

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Finnair
7.6
Good
1,267 reviews
Finnair
7.6
Good
1,267 reviews

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,267 reviews

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Related info for your journey

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

  • What airport do you fly from for flights from Santa Rosa to Oslo?

    Santa Rosa Sonoma County (STS) is the airport you will fly out of if you book a flight from Santa Rosa to Oslo. You should not have trouble finding flights to Oslo from Sonoma County; the airport handles an average of 0 outbound flights to Oslo per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Santa Rosa airport to Oslo. It is only a 7.2 mi journey to Sonoma County (STS) from Santa Rosa’s city center.

  • Can I find deals for flights from Santa Rosa to Oslo that include hotel bookings?

    Yes. In addition to deals on Santa Rosa to Oslo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Santa Rosa to Oslo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santa Rosa to Oslo.

  • Can I find deals for business class flights from Santa Rosa to Oslo?

    Yes. Cheapflights offers flight deals from Santa Rosa to Oslo 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 Santa Rosa to Oslo?

    Currently, November is the cheapest month in which you can book a flight from Santa Rosa to Oslo (average of $567). Flying from Santa Rosa to Oslo in June is currently the most expensive (average of $1,110). 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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