How long is the flight from San Diego to Helsinki?

Airlines like United Airlines, Delta, and British Airways fly from San Diego to Helsinki in about 19h 10m. The time it takes to get you to your destination can typically vary by up to 7h 26m. San Diego and Helsinki are separated by a distance of 5655 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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 40% 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 Finnair.

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

When flying from San Diego to Helsinki, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on San Diego-Helsinki flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on San Diego-Helsinki flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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.

$483+ Flights from San Diego to Helsinki

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1. Tell us where you want to go

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3. Compare prices and book

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Cheap 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 December 28, 2025.

Sat 12/274:45 pmSAN - HEL

2 stops40h 05mUnited Airlines

Sun 1/41:50 pmHEL - SAN

2 stops38h 51mUnited Airlines

Deal found 12/27

$1,554

Sat 12/276:00 pmSAN - HEL

1 stop32h 20mMultiple Airlines

Sun 1/46:55 amHEL - SAN

2 stops23h 52mMultiple Airlines

Deal found 12/27

$2,254

Sat 12/276:00 pmSAN - HEL

1 stop32h 20mBritish Airways

Sun 1/42:00 pmHEL - SAN

1 stop36h 10mBritish Airways

Deal found 12/27

$3,495

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 December 28, 2025.

Wed 2/256:20 amSAN - HEL

1 stop18h 25mMultiple Airlines

Wed 3/412:45 pmHEL - SAN

1 stop20h 03mMultiple Airlines

Deal found 12/25

$483

Wed 2/255:35 pmSAN - HEL

1 stop20h 00mLufthansa

Wed 3/46:55 amHEL - SAN

2 stops25h 49mLufthansa

Deal found 12/25

$485

Wed 2/2510:59 amSAN - HEL

2 stops26h 36mUnited Airlines

Wed 3/41:55 pmHEL - SAN

2 stops31h 58mUnited Airlines

Deal found 12/25

$495

Fri 1/237:00 amSAN - HEL

2 stops23h 25mDelta

Fri 1/307:00 amHEL - SAN

2 stops23h 50mDelta

Deal found 12/27

$497

Fri 1/234:00 pmSAN - HEL

2 stops19h 10mBritish Airways

Fri 1/3012:30 pmHEL - SAN

1 stop16h 42mBritish Airways

Deal found 12/27

$572

Sun 4/1211:42 amSAN - HEL

1 stop16h 33mAmerican Airlines

Sat 4/184:25 pmHEL - SAN

1 stop16h 44mAmerican Airlines

Deal found 12/27

$604

Wed 3/47:00 amSAN - HEL

2 stops17h 40mScandinavian Airlines

Sun 3/86:15 amHEL - SAN

2 stops26h 56mScandinavian Airlines

Deal found 12/27

$650

Wed 3/46:30 amSAN - HEL

2 stops32h 50mUnited Airlines

Sun 3/86:50 amHEL - SAN

1 stop18h 55mUnited Airlines

Deal found 12/27

$602

Fri 1/3010:37 amSAN - HEL

2 stops38h 03mScandinavian Airlines

Tue 2/36:15 amHEL - SAN

2 stops26h 32mScandinavian Airlines

Deal found 12/25

$650

Sun 4/127:40 pmSAN - HEL

2 stops29h 15mBritish Airways

Sat 4/182:05 pmHEL - SAN

1 stop37h 40mBritish Airways

Deal found 12/27

$662

Fri 1/2310:50 amSAN - HEL

1 stop13h 55mAmerican Airlines

Fri 1/3012:30 pmHEL - SAN

1 stop20h 20mAmerican Airlines

Deal found 12/27

$683

Last-minute flights from San Diego to Helsinki
Discover last-minute flight deals from San Diego to Helsinki. Data last updated December 28, 2025 and is based on user searches.

Thu 1/157:00 amSAN - HEL

2 stops20h 20mLufthansa

Mon 1/266:55 amHEL - SAN

2 stops23h 54mLufthansa

Deal found 12/28

$696

Thu 1/1510:50 amSAN - HEL

1 stop13h 55mFinnair

Mon 1/2612:30 pmHEL - SAN

1 stop16h 42mFinnair

Deal found 12/28

$759

Thu 1/156:00 pmSAN - HEL

2 stops31h 10mBritish Airways

Mon 1/2612:30 pmHEL - SAN

1 stop18h 11mBritish Airways

Deal found 12/28

$841

Thu 1/154:20 pmSAN - HEL

3 stops21h 25mScandinavian Airlines

Mon 1/266:15 amHEL - SAN

2 stops27h 50mScandinavian Airlines

Deal found 12/28

$1,056

Fri 1/237:00 amSAN - HEL

2 stops23h 25mDelta

Fri 1/307:00 amHEL - SAN

2 stops23h 50mDelta

Deal found 12/27

$497

Fri 1/234:00 pmSAN - HEL

2 stops19h 10mBritish Airways

Fri 1/3012:30 pmHEL - SAN

1 stop16h 42mBritish Airways

Deal found 12/27

$572

Fri 1/238:25 amSAN - HEL

1 stop16h 20mMultiple Airlines

Fri 1/3012:30 pmHEL - SAN

1 stop16h 42mMultiple Airlines

Deal found 12/27

$683

Fri 1/237:00 amSAN - HEL

2 stops20h 05mUnited Airlines

Fri 1/302:15 pmHEL - SAN

3 stops40h 34mUnited Airlines

Deal found 12/27

$731

Fri 1/3010:37 amSAN - HEL

2 stops38h 03mScandinavian Airlines

Tue 2/36:15 amHEL - SAN

2 stops26h 32mScandinavian Airlines

Deal found 12/25

$650

Find flight deals from San Diego to Helsinki

Most accurate provider	Justfly.com 3 stars
Most trusted provider	Justfly.com 3 stars
Round-trip from	$483 (Finnair)
Popular in	December
Cheapest in	January
Average price	$1,119

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, 3% potential price rise

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Wed 2/25

6:20 am-10:45 am

1 stop18h 25m

Helsinki-Vantaa

Wed 3/4

12:45 pm-10:48 pm

1 stop20h 03m

$483

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Wed 2/25

5:35 pm-11:35 pm

1 stop20h 00m

Helsinki-Vantaa

Wed 3/4

6:55 am-10:44 pm

2 stops25h 49m

$485

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Wed 2/25

10:59 am-11:35 pm

2 stops26h 36m

Helsinki-Vantaa

Wed 3/4

1:55 pm-11:53 am

2 stops31h 58m

$495

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Fri 1/23

7:00 am-4:25 pm

2 stops23h 25m

Helsinki-Vantaa

Fri 1/30

7:00 am-8:50 pm

2 stops23h 50m

$497

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Fri 1/23

4:00 pm-9:10 pm

2 stops19h 10m

Helsinki-Vantaa

Fri 1/30

12:30 pm-7:12 pm

1 stop16h 42m

$572

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Wed 3/4

6:30 am-1:20 am

2 stops32h 50m

Helsinki-Vantaa

Sun 3/8

6:50 am-3:45 pm

1 stop18h 55m

$602

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Sun 4/12

11:42 am-2:15 pm

1 stop16h 33m

Helsinki-Vantaa

Sat 4/18

4:25 pm-11:09 pm

1 stop16h 44m

$604

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Wed 3/4

7:00 am-10:40 am

2 stops17h 40m

Helsinki-Vantaa

Sun 3/8

6:15 am-11:11 pm

2 stops26h 56m

$650

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Fri 1/30

10:37 am-10:40 am

2 stops38h 03m

Helsinki-Vantaa

Tue 2/3

6:15 am-10:47 pm

2 stops26h 32m

$650

San DiegoHelsinki

SAN - HEL

SANHEL

San Diego

Sun 4/12

7:40 pm-10:55 am

2 stops29h 15m

Helsinki-Vantaa

Sat 4/18

2:05 pm-5:45 pm

1 stop37h 40m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 11 results

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Justfly.com	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust Score*2 stars
Mytrip	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 Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on San Diego-Helsinki flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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.

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

7.9

Good

8,017 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

7.9

Good

8,017 reviews

Delta

7.9

Good

8,017 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

1,339 reviews

Delta

7.9

Good

8,017 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

11,070 reviews

Delta

7.9

Good

8,017 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

7,658 reviews

Delta

7.9

Good

8,017 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

7,616 reviews

Delta

7.9

Good

8,017 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 United Airlines, Delta, and British Airways fly from San Diego to Helsinki in about 19h 10m. The time it takes to get you to your destination can typically vary by up to 7h 26m. San Diego and Helsinki are separated by a distance of 5655 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
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 40% 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

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Helsinki

Top 5 airlines flying from San Diego to Helsinki

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest$473	Average$810	FlexibilityNo cancel fee	On-time76%
American Airlines	Cheapest$481	Average$845	FlexibilityNo cancel fee	On-time71%
Finnair	Cheapest$490	Average$774	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$527	Average$970	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$560	Average$734	FlexibilityNo cancel fee	On-timeN/A

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$483+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap 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 December 28, 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 December 28, 2025.

Find flight deals from San Diego to Helsinki

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

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 December.

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?

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

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

Alternative routes for San Diego to Helsinki

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

Top 5 airlines flying from San Diego to Helsinki

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Travel Smart

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 December 28, 2025.