SAN - HEL

$470 Find Cheap Flights from San Diego to Helsinki

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Helsinki departing on 4/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Helsinki

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Helsinki, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Helsinki, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$470
Typical prices: $581-$708
Finnair
Wed 4/8Wed 4/15
SAN - HEL • 1 stop
Cheapest one-way
$494
United Airlines
Mon 6/15
SAN - HEL • 2 stops
Top airlines
Finnair
Cheapest • from $470 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 36% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
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

Wed, Apr 8 - Wed, Apr 15
Finnair Logo
1:26 pm - 2:15 pm
SAN
-
HEL
14h 49m
1 stop
Finnair Logo
4:25 pm - 11:16 pm
HEL
-
SAN
16h 51m
1 stop
$470Finnair
Tue, Apr 7 - Mon, Apr 13
Delta Logo
10:25 pm - 4:40 pm
SAN
-
HEL
32h 15m
2 stops
Delta Logo
1:55 pm - 11:50 am
HEL
-
SAN
31h 55m
1 stop
$489Delta
Wed, Apr 8 - Tue, Apr 14
Delta Logo
10:40 am - 5:40 pm
SAN
-
HEL
21h 00m
2 stops
Delta Logo
7:00 am - 11:50 am
HEL
-
SAN
14h 50m
1 stop
$494Delta
Wed, Mar 4 - Wed, Mar 11
Lufthansa Logo
5:35 pm - 11:35 pm
SAN
-
HEL
20h 00m
1 stop
Lufthansa Logo
7:35 pm - 4:45 pm
HEL
-
SAN
30h 10m
1 stop
$498Lufthansa
Tue, Apr 7 - Mon, Apr 13
Delta Logo
10:25 pm - 4:40 pm
SAN
-
HEL
32h 15m
2 stops
Delta Logo
1:55 pm - 7:14 pm
HEL
-
SAN
39h 19m
2 stops
$499Delta
Wed, Apr 8 - Tue, Apr 14
Delta Logo
10:40 am - 5:40 pm
SAN
-
HEL
21h 00m
2 stops
Delta Logo
1:55 pm - 7:14 pm
HEL
-
SAN
39h 19m
2 stops
$504Delta
Sun, Mar 1 - Sun, Mar 8
United Airlines Logo
10:30 am - 1:20 am
SAN
-
HEL
28h 50m
2 stops
United Airlines Logo
6:50 am - 3:45 pm
HEL
-
SAN
18h 55m
1 stop
$505United Airlines
Mon, Apr 6 - Tue, Apr 14
United Airlines Logo
10:30 pm - 6:55 pm
SAN
-
HEL
34h 25m
2 stops
United Airlines Logo
7:05 am - 9:40 am
HEL
-
SAN
36h 35m
2 stops
$506United Airlines
Mon, Apr 6 - Thu, Apr 16
United Airlines Logo
10:30 pm - 6:55 pm
SAN
-
HEL
34h 25m
2 stops
United Airlines Logo
1:50 pm - 11:25 am
HEL
-
SAN
31h 35m
2 stops
$511United Airlines
Wed, Apr 8 - Tue, Apr 14
United Airlines Logo
7:20 am - 12:40 am
SAN
-
HEL
31h 20m
2 stops
United Airlines Logo
7:05 am - 8:39 pm
HEL
-
SAN
23h 34m
3 stops
$513United Airlines
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.

How much is a round-trip flight from San Diego to Helsinki?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Diego to Helsinki departing in April.

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 $517 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,119 and $1,014 respectively.

Good to know

Low seasonApril
Cheapest flight$470
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 10% lower on average.
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 3 days, the lowest price for a flight from San Diego to Helsinki was $494 for a one-way ticket and $470 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?

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

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

    The two airlines most popular with KAYAK users for flights from San Diego to Helsinki are Delta and Finnair. With an average price for the route of $734 and an overall rating of 7.9, Delta is the most popular choice. Finnair is also a great choice for the route, with an average price of $849 and an overall rating of 7.6.

  • 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 5 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.
7.9
DeltaOverall score based on 8130 reviews
7.2Food
8.5Crew
8.1Boarding
7.9Comfort
7.8Entertainment
Airline reviews

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

10.0 ExcellentDr. Simon, Jan 2026
LAX - JFK
Read more Delta reviews

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

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.

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

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

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

It would be nice to have some low carb options in the snacks.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The flight was on time and arrived early. The crew were friendly and helpful.

While I didn’t watch much tv I would have liked a few more options of TV series from Apple TV or hbo max ..

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

The flight was very smooth and the meal in business class was great.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

Not great. Booked Extra seats and got nothing extra at all. It’s basically a big budget airline.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Late flight Delays Poor service Poor staff Worst airline ever

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.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Extremely pleased with the crew. Best flight attendants ever! Very friendly, genuinely caring and attentive.

Best flight attendants ever! Very customer and service oriented, courteous, professional and helpful.

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Awful it always is unfortunately is the only way to fly direct to london

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Great crew and food and beverage. Seating tight but not the airline's fault. Will definitely fly BA in future!

Crying baby the ENTIRE flight. Not your fault, but I paid 2700 for a premium economy ticket and it wasn't worth it. should have just stuck with coach. flight attendants very mediocre - minimal effort. Plane didn't seem very clean. Didn't have any cleansing wipes - most airlines give you this when you board. Flat screen scrolling didn't work. Toiletry case a joke - why bother at all?

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

I was transferred to an American Airlines flight. The boarding was late and unorganized. The seating was extremely tight and uncomfortable. Will not use AA again.

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

Information on your arrival and departure airports