SAN - HEL

$350 Find Cheap Flights from San Diego to Helsinki - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Helsinki departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$752
Typical prices: $578-$1,318
Scandinavian Airlines
Sun 11/1Tue 12/1
SAN - HEL • 2 stops
Cheapest one-way
$350
Multiple Airlines
Tue 9/15
SAN - HEL • 3 stops
Top airlines
Cheapest • from $752 (round-trip)
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Diego and Helsinki. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $763 (round-trip)
Shortest trip • 14h 30m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 39% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Helsinki!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to Helsinki (SAN-HEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Helsinki that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Helsinki

Sun, Nov 1 - Tue, Dec 1
Scandinavian Airlines Logo
6:15 am - 3:25 pm
SAN
-
HEL
23h 10m
2 stops
Scandinavian Airlines Logo
11:15 am - 10:57 pm
HEL
-
SAN
21h 42m
2 stops
$752Scandinavian Airlines
Sun, Nov 1 - Tue, Dec 1
Scandinavian Airlines Logo
6:15 am - 3:25 pm
SAN
-
HEL
23h 10m
2 stops
Scandinavian Airlines Logo
11:15 am - 10:57 pm
HEL
-
SAN
21h 42m
2 stops
$753Scandinavian Airlines
Fri, Jan 15 - Wed, Jan 27
Scandinavian Airlines Logo
10:00 am - 8:20 pm
SAN
-
HEL
24h 20m
2 stops
Scandinavian Airlines Logo
9:00 pm - 11:03 pm
HEL
-
SAN
36h 03m
2 stops
$753Scandinavian Airlines
Sun, Nov 1 - Tue, Dec 1
American Airlines Logo
7:15 am - 11:10 am
SAN
-
HEL
17h 55m
1 stop
American Airlines Logo
12:30 pm - 7:09 pm
HEL
-
SAN
16h 39m
1 stop
$774American Airlines
Sun, Nov 1 - Tue, Dec 1
American Airlines Logo
7:15 am - 11:10 am
SAN
-
HEL
17h 55m
1 stop
American Airlines Logo
12:30 pm - 7:09 pm
HEL
-
SAN
16h 39m
1 stop
$779American Airlines
Tue, Sep 8 - Tue, Sep 22
Finnair Logo
1:11 pm - 2:15 pm
SAN
-
HEL
15h 04m
1 stop
Finnair Logo
4:25 pm - 11:25 pm
HEL
-
SAN
17h 00m
1 stop
$786Finnair
Fri, Jan 15 - Wed, Jan 27
Lufthansa Logo
5:35 pm - 6:45 pm
SAN
-
HEL
15h 10m
1 stop
Lufthansa Logo
7:05 am - 12:29 am
HEL
-
SAN
27h 24m
2 stops
$809Lufthansa
Mon, Sep 14 - Mon, Sep 28
American Airlines Logo
10:46 pm - 2:15 pm
SAN
-
HEL
29h 29m
1 stop
American Airlines Logo
12:35 pm - 9:48 pm
HEL
-
SAN
19h 13m
1 stop
$875American Airlines
Wed, Sep 23 - Mon, Oct 5
Lufthansa Logo
3:56 pm - 1:35 am
SAN
-
HEL
23h 39m
2 stops
Lufthansa Logo
6:55 am - 5:26 pm
HEL
-
SAN
20h 31m
2 stops
$898Lufthansa
Fri, Dec 18 - Tue, Dec 22
Finnair Logo
6:00 pm - 11:05 pm
SAN
-
HEL
19h 05m
1 stop
Finnair Logo
1:25 pm - 10:55 pm
HEL
-
SAN
19h 30m
1 stop
$1,970Finnair
Booking Insights

KAYAK's insights & trends for San Diego to Helsinki flights

Get data-powered insights and trends into flights from San Diego to Helsinki to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Diego to Helsinki?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Helsinki, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Helsinki is October, where tickets cost $530 (return) on average. On the other hand, the most expensive months are June and August, where the average cost of round-trip tickets is $1,330 and $1,188 respectively.

Good to know

Low season

April

Cheapest flight

$350
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from San Diego to Helsinki

When to book flights from San Diego to Helsinki

Are your dates flexible? Find out the best times to travel from San Diego to Helsinki based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Helsinki

  • What is the cheapest flight from San Diego to Helsinki?

    In the last 5 days, the lowest price for a flight from San Diego to Helsinki was $350 for a one-way ticket and $752 for a round-trip.

  • Do I need a passport to fly between San Diego and Helsinki?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Diego and on arrival in Helsinki.

  • Which airports will I be using when flying from San Diego to Helsinki?

    San Diego and Helsinki are both served by 1 main airport. You will leave San Diego from San Diego and will be arriving at Helsinki-Vantaa.

  • Which aircraft models fly most regularly from San Diego to Helsinki?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Diego to Helsinki?

    Star Alliance, and oneworld are the airline alliances operating flights between San Diego and Helsinki, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from San Diego to Helsinki, Finnair or American Airlines?

    The two airlines most popular with KAYAK users for flights from San Diego to Helsinki are Finnair and American Airlines. With an average price for the route of $949 and an overall rating of 7.7, Finnair is the most popular choice. American Airlines is also a great choice for the route, with an average price of $563 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from San Diego to Helsinki?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Helsinki.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Helsinki?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helsinki from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Helsinki?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helsinki with an airline and back to San Diego with another airline. Booking your flights between San Diego and HEL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Helsinki?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helsinki from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from San Diego to Helsinki

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Helsinki. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Helsinki? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
FinnairOverall score based on 1424 reviews
8.2Crew
7.4Comfort
7.7Boarding
6.9Entertainment
6.7Food
Airline reviews

The seats are very uncomfortable. They never have tomato juice. Usually late

4.0 OkayAnonymous, Jun 2026
LAX - HEL
Read more Finnair reviews

The seats are very uncomfortable. They never have tomato juice. Usually late

Finnair was not able to get our luggage on a connecting flight and there was a substantial delay of two days to obtain our lugguage. They did not communicate well, and we had to travel a significant distance to finally get our luggage. It has been a very negative experience.

On a more than 8 hours flight was only one meal included, which I have never experienced before. Always two meals on the overseas flight. It was very weird.

Business seating is soooo uncomfortable. You can sit straight up or lay down. You need pillows behind you because the back doesn’t lay down. Those are need to “prop” you up. The chair has no padding whatsoever. Food was gross. I’ve eaten on Finnair before and the food was exceptional. This time it gave 2 people in our party diarrhea. It was the chicken dish. I took 2 bites and didn’t eat anything more. The flight attendants were nice. You needed an additional lounge in Terminal D at DFW Airport. After waiting 40 minutes to enter, we finally gave up and went to a bar across from the club doors. I’m unsure if I’ll ever book a Finnair flight again.

It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

flight was excellent. The crew was very helpful. Finnair made this 10 hour flight flyby. The entertainment screens on every seat really help save the battery life of your personal devices. We were served dinner and even a light breakfast, both of which were tasty. The crew even did all they could to help one group of passengers with their child, as to keep them comfortable during the flight.

Well, true to American Airlines, both of my flights were delayed. But it’s a good thing that American is so consistently incompetent because if the first flight was delayed in the second flight was on time then I might’ve had a problem..

Finnair is a really good airline! We specifically looked for them on this trip. On time, great crew, and overall great experience.

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

Cramped seats. FAA should make airlines have more legroom, for even short people complain

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Awful customer service on the phone. No phone number on the website to call a real person. Website says changes are no charge but this is a lie. I had a cheaper ticket through Kayak therefore Finnair wouldn’t change it unless I would pay the entire fare again. I begged but their agents at the airport were rude and the online chat person cut off the call with no help. Super disappointed. Wont fly this airline again and will tell everyone I meet how bad it is. Crew on the flight was nice but otherwise huge disappointment.

Definitely get premium economy on a flight this long if you can. Your legs and while body will thank you.

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

The food could be better, more snacks. And have some plugs to chargue the phone.

Second time I took this flight, and they lost my luggage both times. Waiting for my suitcase now, last time it took two days to get it back.

Used to love Lufthansa, but Rowe are too close together in Economy and passengers are allowed to recline their seats so far back it is impossible for those behind them to even reach for carry-on essentials during flight - except for meal service when flight attendants ask for seat backs to be raised, we can’t sleep on planes so this flight was most uncomfortable ever! Rod Rose

There were several delays in boarding. Then our group wasn’t called. Good thing we went up to the counter to see what was going on. We boarded next and last. I felt sorry for the staff but that was our third flight to get to our destination and we were tired.

The food could have been better. Had a wide range of entertainment to choose from.

I was traveling with a young child and the flight attendants were rude and unhelpful when simple requests were made like an early cracker or cookie to help distract him while everyone else was boarding. Also, my wife received dirty looks from an attendant when she asked if she could get by while holding our crying infant. They made us feel like a burden instead of a paying customer. The food was really sub par, especially the breakfast sandwich; cold, soggy veggie sandwich with no flavor (zero seasoning or vinegar or oil) and as mentioned the bread was cold and soggy wet. Also, there seemed to be something wrong with one of the bathroom’s ventilation, the smell was terrible throughout the entire flight. In the past Lufthansa had a good reputation for customer service, they are actively destroying it with how they currently treat passengers. If our return flight is as bad we will never fly Lufthansa again.

The flight was half an hour late, which is the new normal in Europe. Friendly crew.

Dear Lufthansa, thank you for the excellent flight. We arrived early which really helped us with our connection. Crew was so nice!

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

Information on your arrival and departure airports