$1,069+ Cheap flights from Santa Rosa (STS) to Finland
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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
STS — HEL
Nov 27 — Dec 41
1 adult, Economy
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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 Santa Rosa to Finland
Keep the following information in mind while searching for Santa Rosa to Finland flight deals. Data was last updated October 28, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $1,069 (American Airlines) |
Popular in | April |
Cheapest in | November |
Average price | $685 |
Find flight deals from Santa Rosa to Finland
Best flights from Santa Rosa to FinlandDiscover carefully curated flight deals from Santa Rosa to Finland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.
Discover carefully curated flight deals from Santa Rosa to Finland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 3/68:00 amSTS - HEL
2 stops27h 10mAmerican Airlines
Tue 3/104:00 pmHEL - STS
2 stops32h 50mAmerican Airlines
Deal found 10/26![American Airlines logo]()
$1,069
Cheapflights Fare Finder
Customize your flight search to find flights from Santa Rosa to Finland 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 28, 2025.
Use the filters below to find and compare flights from Santa Rosa to Finland that are best for you.
Fly from
Santa Rosa
Fly to
Finland
Route
Depart
Return
Price
Santa RosaHelsinki
STS - HEL
STSHEL
Santa Rosa Sonoma County
Fri 3/6
8:00 am-9:10 pm
2 stops27h 10m
Helsinki-Vantaa
Tue 3/10
4:00 pm-3:50 pm
2 stops32h 50m
$1,069
Best time to book a flight from Santa Rosa to Finland
Have a flexible travel schedule? Discover the best time to fly to Finland 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 Finland
What is the cheapest month to book a flight from Santa Rosa to Finland?
Currently, February is the cheapest month in which you can book a flight from Santa Rosa to Finland (average of $482). Flying from Santa Rosa to Finland in July is currently the most expensive (average of $911). 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.