How long is the flight from San Diego to Helsinki?

Airlines like Delta fly from San Diego to Helsinki in about 20h 40m. The time it takes to get you to your destination can typically vary by up to . San Diego and Helsinki are separated by a distance of 5655 mi.

What are the cheapest airlines flying from San Diego to Helsinki round-trip?

Our cheapest airline available from San Diego to Helsinki is Lufthansa. Our recent data shows that you can find tickets from as low as $473 on this airline. Additional options worth looking into are American Airlines and Finnair, starting at $481 and $490 round-trip. These flights start at 41% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Helsinki ranges from 1.2 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Helsinki when rainfall is around 1.2 in.

If weather is an important factor for your trip to Helsinki, 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 60.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

What are the most popular airlines that fly from San Diego to Helsinki?

Before booking your flight from San Diego to Helsinki check out the most popular airlines for this route: American Airlines, Lufthansa or British Airways.

Most accurate provider : When it comes to deals on San Diego-Helsinki flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Helsinki flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Helsinki flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Diego-Helsinki flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from San Diego to Helsinki?

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

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

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

$527+ Cheap Flights from San Diego to Helsinki

Q: How much does it cost to fly round-trip from San Diego to Helsinki?

Airfare is typical for this route at the moment. San Diego to Helsinki flights typically cost between $510 and $538 in December. The cheapest round-trip price found within the last 3 days was $527 on Lufthansa (Dec 30-Jan 7).

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Find cheap flights from San Diego to Helsinki 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

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Cheap flight deals from San Diego to Helsinki

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$496 (KAYAK)
Popular in	December
Cheapest in	October
Average price	$517

Provider with most accurate pricing for San Diego-Helsinki-Vantaa flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Diego-Helsinki-Vantaa flights.

Search Deals

From San Diego to Helsinki-Vantaa

Search Deals

High demand for flights, 7% potential price rise

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Find flight deals from San Diego to Helsinki

Cheapest flights from San Diego to Helsinki
Explore the most affordable flight options available from San Diego to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

Tue 12/305:35 pmSAN - HEL

1 stop32h 25mLufthansa

Wed 1/77:35 pmHEL - SAN

1 stop30h 10mLufthansa

Deal found 10/15

$527

Fri 11/76:15 amSAN - HEL

2 stops24h 10mDelta

Tue 11/186:30 amHEL - SAN

2 stops21h 50mDelta

Deal found 10/15

$531

Fri 11/75:35 pmSAN - HEL

1 stop15h 15mLufthansa

Tue 11/1812:45 pmHEL - SAN

2 stops19h 35mLufthansa

Deal found 10/15

$532

Tue 12/3010:45 pmSAN - HEL

2 stops34h 05mUnited Airlines

Wed 1/712:45 pmHEL - SAN

2 stops44h 57mUnited Airlines

Deal found 10/15

$533

Fri 11/75:35 pmSAN - HEL

1 stop15h 15mUnited Airlines

Tue 11/1812:45 pmHEL - SAN

1 stop37h 00mUnited Airlines

Deal found 10/15

$540

Sat 11/156:15 amSAN - HEL

2 stops25h 10mDelta

Sat 11/227:00 amHEL - SAN

2 stops20h 56mDelta

Deal found 10/16

$550

Thu 10/306:35 pmSAN - HEL

1 stop15h 15mUnited Airlines

Mon 11/31:55 pmHEL - SAN

3 stops35h 33mUnited Airlines

Deal found 10/15

$581

Thu 10/306:35 pmSAN - HEL

1 stop15h 15mLufthansa

Mon 11/37:35 pmHEL - SAN

1 stop30h 10mLufthansa

Deal found 10/15

$598

Best flights from San Diego to Helsinki
Discover carefully curated flight deals from San Diego to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 16, 2025.

Thu 4/210:00 amSAN - HEL

2 stops20h 40mDelta

Mon 4/61:55 pmHEL - SAN

1 stop32h 05mDelta

Deal found 10/14

$535

Thu 3/2611:57 amSAN - HEL

2 stops26h 38mUnited Airlines

Mon 4/612:40 pmHEL - SAN

1 stop36h 45mUnited Airlines

Deal found 10/15

$538

Fri 11/75:35 pmSAN - HEL

1 stop15h 15mUnited Airlines

Tue 11/1812:45 pmHEL - SAN

1 stop37h 00mUnited Airlines

Deal found 10/15

$540

Last-minute flights from San Diego to Helsinki
Discover last-minute flight deals from San Diego to Helsinki. Data last updated October 16, 2025 and is based on user searches.

Thu 10/306:35 pmSAN - HEL

1 stop15h 15mUnited Airlines

Mon 11/31:55 pmHEL - SAN

3 stops35h 33mUnited Airlines

Deal found 10/15

$581

Thu 10/306:35 pmSAN - HEL

1 stop15h 15mLufthansa

Mon 11/37:35 pmHEL - SAN

1 stop30h 10mLufthansa

Deal found 10/15

$598

Fri 11/76:15 amSAN - HEL

2 stops24h 10mDelta

Tue 11/186:30 amHEL - SAN

2 stops21h 50mDelta

Deal found 10/15

$531

Fri 11/75:35 pmSAN - HEL

1 stop15h 15mLufthansa

Tue 11/1812:45 pmHEL - SAN

2 stops19h 35mLufthansa

Deal found 10/15

$532

Fri 11/75:35 pmSAN - HEL

1 stop15h 15mUnited Airlines

Tue 11/1812:45 pmHEL - SAN

1 stop37h 00mUnited Airlines

Deal found 10/15

$540

Sat 11/156:15 amSAN - HEL

2 stops25h 10mDelta

Sat 11/227:00 amHEL - SAN

2 stops20h 56mDelta

Deal found 10/16

$550

Sat 11/1510:30 pmSAN - HEL

2 stops28h 40mUnited Airlines

Sat 11/221:50 pmHEL - SAN

3 stops40h 15mUnited Airlines

Deal found 10/16

$625

One-way flights from San Diego to Helsinki
Search for one-way flight options from San Diego to Helsinki. Find affordable one-way fares based on user searches. Data last updated October 16, 2025.

Fri 12/197:15 amSAN - HEL

3 stops40h 10mMultiple Airlines

Deal found 10/15

$657

Sat 12/209:32 amSAN - HEL

3 stops47h 23mMultiple Airlines

Deal found 10/15

$748

Fly from

Fly to

Route

Depart

Return

Price

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Thu 4/2

10:00 am-4:40 pm

2 stops20h 40m

Helsinki-Vantaa

Mon 4/6

1:55 pm-12:00 pm

1 stop32h 05m

$535

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Thu 3/26

11:57 am-11:35 pm

2 stops26h 38m

Helsinki-Vantaa

Mon 4/6

12:40 pm-3:25 pm

1 stop36h 45m

$538

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Fri 11/7

5:35 pm-6:50 pm

1 stop15h 15m

Helsinki-Vantaa

Tue 11/18

12:45 pm-3:45 pm

1 stop37h 00m

$540

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Fri 12/19

7:15 am-9:25 am

3 stops40h 10m

$657

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Sat 12/20

9:32 am-6:55 pm

3 stops47h 23m

$748

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Compare providers for flights from San Diego to Helsinki

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Helsinki in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
Justfly.com	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on San Diego-Helsinki flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Helsinki flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Helsinki flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Diego-Helsinki flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Diego to Helsinki

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

What is the cheapest month to book a flight from San Diego to Helsinki?

Currently, October is the cheapest month in which you can book a flight from San Diego to Helsinki (average of $460). Flying from San Diego to Helsinki in June is currently the most expensive (average of $898). 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.

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

It’s typically best to fly out from San Diego to Helsinki in the afternoon. Doing so could potentially save you 19% on the flight price compared to flying in the evening, which is usually more expensive.

How much does it cost to fly round-trip from San Diego to Helsinki?

Reviews of airlines servicing Helsinki

Get a feel of what it's like to fly with Delta, Finnair, and American Airlines from San Diego to Helsinki by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,332 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

11,040 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Lufthansa

6.8

Okay

7,497 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

British Airways

6.7

Okay

7,457 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

How long is the flight from San Diego to Helsinki?
Airlines like Delta fly from San Diego to Helsinki in about 20h 40m. The time it takes to get you to your destination can typically vary by up to . San Diego and Helsinki are separated by a distance of 5655 mi.
What are the cheapest airlines flying from San Diego to Helsinki round-trip?
Our cheapest airline available from San Diego to Helsinki is Lufthansa. Our recent data shows that you can find tickets from as low as $473 on this airline. Additional options worth looking into are American Airlines and Finnair, starting at $481 and $490 round-trip. These flights start at 41% lower than the current average price 3 months from now.
Can I find deals for flights from San Diego to Helsinki that include hotel bookings?
Yes. In addition to deals on San Diego to Helsinki flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Diego to Helsinki?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Helsinki.
Can I find deals for business class flights from San Diego to Helsinki?
Yes. Cheapflights offers flight deals from San Diego to Helsinki 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 San Diego to Helsinki?
Currently, October is the cheapest month in which you can book a flight from San Diego to Helsinki (average of $460). Flying from San Diego to Helsinki in June is currently the most expensive (average of $898). 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

Vantaa

Lahti

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Other flights to Helsinki

Top 6 airlines flying from San Diego to Helsinki

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest$473	Average$876	FlexibilityNo cancel fee	On-time76%
American Airlines	Cheapest$481	Average$981	FlexibilityNo cancel fee	On-time71%
Finnair	Cheapest$490	Average$849	FlexibilityNo cancel fee	On-time76%
Scandinavian Airlines	Cheapest$509	Average$530	FlexibilityNo cancel fee	On-time77%
British Airways	Cheapest$527	Average$747	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$560	Average$734	FlexibilityNo cancel fee	On-timeN/A

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$527+ Cheap flights from San Diego (SAN) to Helsinki (HEL)

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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Diego to Helsinki with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Diego to Helsinki

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from San Diego to Helsinki

Cheapest flights from San Diego to HelsinkiExplore the most affordable flight options available from San Diego to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

Explore the most affordable flight options available from San Diego to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from San Diego to Helsinki

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Helsinki in October.

Best time to book a flight from San Diego to Helsinki

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

Cheapflights Insights

Everything you need to know about your flight from San Diego to Helsinki

What is the cheapest month to book a flight from San Diego to Helsinki?

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

How much does it cost to fly round-trip from San Diego to Helsinki?

Reviews of airlines servicing Helsinki

Get a feel of what it's like to fly with Delta, Finnair, and American Airlines from San Diego to Helsinki by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from San Diego to Helsinki?

What are the cheapest airlines flying from San Diego to Helsinki round-trip?

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

How can I find direct flights from San Diego to Helsinki?

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

What is the cheapest month to book a flight from San Diego to Helsinki?

Traveling to a place near Helsinki?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Diego to Helsinki

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

Top 6 airlines flying from San Diego to Helsinki

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Cheapest flights from San Diego to Helsinki
Explore the most affordable flight options available from San Diego to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.