In terms of precipitation, rainfall in Oakland, California ranges from 0.0 - 4.8 inches per month. January is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Oakland, California when rainfall is around 0.0 in.

If weather is an important factor for your trip to Oakland, California, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

How far in advance should I book a flight from Helsinki to Oakland, California?

To save up to 13% on this flight, we recommend booking at least 25 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Helsinki to Oakland, California from $770 1-2 weeks out and tickets from $984 for flights departing within the next 72 hours.

What is the cheapest month to fly from Helsinki to Oakland, California?

February can be a great time to fly to Oakland, California from Helsinki with a flight ticket averaging about $858. Cheapflights users have found deals in the month of February for as cheap as $666. The most expensive prices can be found in the month of July.

What is the cheapest time of day to fly from HEL to OAK?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Helsinki to Oakland, California as you normally would.

Can I find deals for flights from Helsinki to Oakland that include hotel bookings?

Yes. In addition to deals on Helsinki to Oakland flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Helsinki to Oakland?

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

Can I find deals for business class flights from Helsinki to Oakland?

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

$831+ Flights from Helsinki to Oakland, CA

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Cheap flight deals from Helsinki to Oakland

Round-trip from	$831 (Delta)
Popular in	July
Cheapest in	February
Average price	$1,044

From Helsinki-Vantaa to Oakland

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($105 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Helsinki to Oakland

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

Fri 11/142:05 pmHEL - OAK

2 stops36h 26mDelta

Tue 11/181:15 pmOAK - HEL

2 stops41h 10mDelta

Deal found 7/28

$831

Thu 8/145:40 pmHEL - OAK

2 stops40h 21mMultiple Airlines

Mon 8/187:00 amOAK - HEL

2 stops23h 40mMultiple Airlines

Deal found 7/29

$1,012

Best flights from Helsinki to Oakland
Discover carefully curated flight deals from Helsinki to Oakland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Fri 11/142:05 pmHEL - OAK

2 stops36h 26mDelta

Tue 11/181:15 pmOAK - HEL

2 stops41h 10mDelta

Deal found 7/28

$831

Thu 8/145:40 pmHEL - OAK

2 stops40h 21mMultiple Airlines

Mon 8/187:00 amOAK - HEL

2 stops23h 40mMultiple Airlines

Deal found 7/29

$1,012

Last-minute flights from Helsinki to Oakland
Discover last-minute flight deals from Helsinki to Oakland. Data last updated July 29, 2025 and is based on user searches.

Thu 8/145:40 pmHEL - OAK

2 stops40h 21mMultiple Airlines

Mon 8/187:00 amOAK - HEL

2 stops23h 40mMultiple Airlines

Deal found 7/29

$1,012

Fly from

Fly to

Route

Depart

Return

Price

HelsinkiOakland

HEL - OAK

HELOAK

Helsinki-Vantaa

Fri 11/14

2:05 pm-4:31 pm

2 stops36h 26m

Oakland

Tue 11/18

1:15 pm-4:25 pm

2 stops41h 10m

$831

HelsinkiOakland

HEL - OAK

HELOAK

Helsinki-Vantaa

Thu 8/14

5:40 pm-12:01 am

2 stops40h 21m

Oakland

Mon 8/18

7:00 am-4:40 pm

2 stops23h 40m

$1,012

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Helsinki to Oakland

Have a flexible travel schedule? Discover the best time to fly to Oakland from Helsinki 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 Helsinki to Oakland

What is the cheapest month to book a flight from Helsinki to Oakland, California?

Currently, April is the cheapest month in which you can book a flight from Helsinki to Oakland, California (average of $183). Flying from Helsinki to Oakland, California in November is currently the most expensive (average of $259). 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 Oakland

Read through reviews of airlines operating flights from Helsinki to Oakland, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,977 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Can I find deals for flights from Helsinki to Oakland that include hotel bookings?
Yes. In addition to deals on Helsinki to Oakland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Helsinki to Oakland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helsinki to Oakland.
Can I find deals for business class flights from Helsinki to Oakland?
Yes. Cheapflights offers flight deals from Helsinki to Oakland 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 Helsinki to Oakland, California?
Currently, April is the cheapest month in which you can book a flight from Helsinki to Oakland, California (average of $183). Flying from Helsinki to Oakland, California in November is currently the most expensive (average of $259). 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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$831+ Cheap flights from Helsinki (HEL) to Oakland, CA (OAK)

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Helsinki to Oakland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Helsinki to Oakland

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Helsinki to Oakland

Cheapest flights from Helsinki to OaklandExplore the most affordable flight options available from Helsinki to Oakland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Helsinki to Oakland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Helsinki to Oakland that are best for you.

Best time to book a flight from Helsinki to Oakland

Have a flexible travel schedule? Discover the best time to fly to Oakland from Helsinki with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Helsinki to Oakland

What is the cheapest month to book a flight from Helsinki to Oakland, California?

Reviews of airlines servicing Oakland

Read through reviews of airlines operating flights from Helsinki to Oakland, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Helsinki to Oakland. 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 Helsinki to Oakland that include hotel bookings?

How can I find direct flights from Helsinki to Oakland?

Can I find deals for business class flights from Helsinki to Oakland?

What is the cheapest month to book a flight from Helsinki to Oakland, California?

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 Helsinki to Oakland

See prices for flight routes from nearby airports that may be better suited for you.

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Travel Smart

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