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$395+ Cheap flights from Helsinki (HEL) to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SAN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Helsinki to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Helsinki (HEL) to San Diego (SAN). 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 June 12, 2025.

Round-trip from

$923
(United Airlines)

One-way from

$395
(Kiwi.com)

Popular in

April

Cheapest in

February

Average price

$1,021
From Helsinki-Vantaa to San Diego
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One-way flight from Helsinki-Vantaa to San Diego
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Highest demand for flights based on searches. 3% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Helsinki to San Diego

Cheapest flights from Helsinki to San Diego
Explore the most affordable flight options available from Helsinki to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/46:10 amHEL - SAN
2 stops27h 34mUnited Airlines
Sun 8/104:00 pmSAN - HEL
2 stops22h 40mUnited Airlines
Deal found 6/11$923
This Travelis deal was found by Cheapflights users on 6/12. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/216:10 amHEL - SAN
2 stops23h 54mLufthansa
Sat 6/282:05 pmSAN - HEL
2 stops23h 45mLufthansa
Deal found 6/12$963
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 8/412:35 pmHEL - SAN
1 stop15h 21mAmerican Airlines
Sun 8/108:18 amSAN - HEL
1 stop16h 27mAmerican Airlines
Deal found 6/11$975
This ResecentrumGruppen deal was found by Cheapflights users on 6/11. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/412:35 pmHEL - SAN
1 stop19h 10mFinnair
Sun 8/107:50 pmSAN - HEL
1 stop17h 10mFinnair
Deal found 6/11$1,006
This Expedia deal was found by Cheapflights users on 6/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/252:05 pmHEL - SAN
2 stops20h 04mBritish Airways
Fri 8/14:40 pmSAN - HEL
1 stop18h 20mBritish Airways
Deal found 6/10$1,096
This Iberia deal was found by Cheapflights users on 6/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2512:35 pmHEL - SAN
1 stop17h 29mMultiple Airlines
Fri 8/17:50 pmSAN - HEL
1 stop17h 10mMultiple Airlines
Deal found 6/10$1,114
This Air France deal was found by Cheapflights users on 6/12. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/286:25 pmHEL - SAN
1 stop27h 35mAir France
Wed 7/25:04 pmSAN - HEL
2 stops20h 16mAir France
Deal found 6/12$1,577

Cheapflights Fare Finder

Customize your flight search to find flights from Helsinki to San Diego 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 June 12, 2025.
Use the filters below to find and compare flights from Helsinki to San Diego that are best for you.

Fly from

Helsinki

Fly to

San Diego

Route

Depart

Return

Price

HelsinkiSan Diego

HEL - SAN

HELSAN

Helsinki-Vantaa

Mon 8/4

6:10 am-11:44 pm

2 stops27h 34m

San Diego

Sun 8/10

4:00 pm-12:40 am

2 stops22h 40m

$923

HelsinkiSan Diego

HEL - SAN

HELSAN

Helsinki-Vantaa

Mon 8/4

12:35 pm-5:56 pm

1 stop15h 21m

San Diego

Sun 8/10

8:18 am-10:45 am

1 stop16h 27m

$975

HelsinkiSan Diego

HEL - SAN

HELSAN

Helsinki-Vantaa

Mon 8/4

12:35 pm-9:45 pm

1 stop19h 10m

San Diego

Sun 8/10

7:50 pm-11:00 pm

1 stop17h 10m

$1,006

HelsinkiSan Diego

HEL - SAN

HELSAN

Helsinki-Vantaa

Fri 7/25

2:05 pm-12:09 am

2 stops20h 04m

San Diego

Fri 8/1

4:40 pm-9:00 pm

1 stop18h 20m

$1,096

HelsinkiSan Diego

HEL - SAN

HELSAN

Helsinki-Vantaa

Fri 7/25

12:35 pm-8:04 pm

1 stop17h 29m

San Diego

Fri 8/1

7:50 pm-11:00 pm

1 stop17h 10m

$1,114

HelsinkiSan Diego

HEL - SAN

HELSAN

Helsinki-Vantaa

Mon 8/4

6:00 am-3:25 pm

1 stop19h 25m

San Diego

Sun 8/10

5:15 pm-11:50 pm

1 stop20h 35m

$1,332

HelsinkiSan Diego

HEL - SAN

HELSAN

Helsinki-Vantaa

Sat 6/28

6:25 pm-12:00 pm

1 stop27h 35m

San Diego

Wed 7/2

5:04 pm-11:20 pm

2 stops20h 16m

$1,577

HelsinkiSan Diego

HEL - SAN

HELSAN

Helsinki-Vantaa

Mon 9/22

11:35 am-10:50 am

3 stops57h 15m

$395

HelsinkiSan Diego

HEL - SAN

HELSAN

Helsinki-Vantaa

Sat 9/20

6:25 pm-12:00 pm

1 stop27h 35m

$881

HelsinkiSan Diego

HEL - SAN

HELSAN

Helsinki-Vantaa

Sun 8/10

12:35 pm-5:55 pm

1 stop15h 20m

$908

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 14 results
1
2

Best time to book a flight from Helsinki to San Diego

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

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

Currently, August is the cheapest month in which you can book a flight from Helsinki to San Diego (average of $286). Flying from Helsinki to San Diego in March is currently the most expensive (average of $366). 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 HEL to SAN?

Find hourly flight availability from Helsinki to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

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

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, 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 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

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
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

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
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

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
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

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
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

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

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

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

    According to our current data, United Airlines ($923), American Airlines ($975), and Finnair ($1,006) offers the cheapest pricing from Helsinki to San Diego. You may be able to fly from Helsinki to San Diego for 6% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Helsinki to San Diego one-way?

    The cheapest airlines for a one-way flight from Helsinki to San Diego are Air France ($881), Finnair ($908), and Delta ($1,228).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Helsinki to San Diego 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 San Diego?

    Currently, August is the cheapest month in which you can book a flight from Helsinki to San Diego (average of $286). Flying from Helsinki to San Diego in March is currently the most expensive (average of $366). 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

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Imperial Beach
La Mesa
Alpine
Lemon Grove
Poway
Santee
Coronado

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Helsinki to San Diego

Discover the top airline that operate flights from Helsinki to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$849Average$862FlexibilityNo cancel feeOn-time76%

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