HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oulu

$973+ Cheap flights from San Francisco (SFO) to Oulu (OUL)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — OUL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Oulu with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from San Francisco to Oulu

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

Round-trip from

$973
(KAYAK)
From San Francisco to Oulu
Search Deals

Find flight deals from San Francisco to Oulu

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

This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:00 amSFO - OUL
2 stops31h 00mFinnair
Wed 10/18:40 amOUL - SFO
2 stops25h 19mFinnair
Deal found 7/27$973

Cheapflights Fare Finder

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

Fly from

San Francisco

Fly to

Oulu

Route

Depart

Return

Price

San FranciscoOulu

SFO - OUL

SFOOUL

San Francisco

Tue 9/23

8:00 am-1:00 am

2 stops31h 00m

Oulu

Wed 10/1

8:40 am-11:59 pm

2 stops25h 19m

$973

San FranciscoOulu

SFO - OUL

SFOOUL

San Francisco

Sun 8/17

12:40 pm-2:35 pm

2 stops39h 55m

Oulu

Sun 8/24

5:35 pm-4:40 pm

2 stops33h 05m

$1,402

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from San Francisco to Oulu

Have a flexible travel schedule? Discover the best time to fly to Oulu 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.

Reviews of airlines servicing Oulu

Get insights into the airlines that provide service to Oulu. 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 Oulu. Reviews last updated July 29, 2025.
Get a feel of what it's like to fly with Finnair and Turkish Airlines from San Francisco to Oulu by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,316 reviews

Overall

7.6

Boarding

7.6

Comfort

7.5

Food

6.7

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Finnair
7.6
Good
1,316 reviews
Finnair
7.6
Good
1,316 reviews

Overall

7.6

Boarding

7.6

Comfort

7.5

Food

6.7

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Turkish Airlines
7.3
Good
3,925 reviews
Finnair
7.6
Good
1,316 reviews

Overall

7.6

Boarding

7.6

Comfort

7.5

Food

6.7

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.

Related info for your journey

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Oulu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Oulu

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Helsinki flights
San Francisco to Helsinki flights
Ontario to Helsinki flights
San Jose to Helsinki flights
Burbank to Helsinki flights
Santa Ana to Helsinki flights
Sacramento to Helsinki flights
Las Vegas to Helsinki flights
San Diego to Helsinki flights
Los Angeles to Rovaniemi flights
Oakland to Helsinki flights
Los Angeles to Kittilä flights
San Francisco to Rovaniemi flights
Reno to Helsinki flights
San Jose to Oulu flights
San Jose to Rovaniemi flights
Los Angeles to Tampere flights
San Francisco to Kemi flights
San Francisco to Kittilä flights
San Francisco to Turku flights
San Francisco to Kokkola flights
Oakland to Rovaniemi flights
San Francisco to Kajaani flights
Los Angeles to Ivalo flights
Los Angeles to Kuusamo flights
Los Angeles to Kemi flights
San Francisco to Tampere flights
Los Angeles to Turku flights
San Francisco to Kuopio flights
San Francisco to Jyväskylä flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.