SAN - HEL

$507 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 9/22. 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

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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Flights 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

Mon, Sep 22 - Tue, Oct 7
Finnair Logo
10:42 am - 11:05 amSAN-HEL
14h 23m1 stop
Finnair Logo
12:35 pm - 6:04 pmHEL-SAN
15h 29m1 stop
$507Finnair
Find Deal
Mon, Sep 22 - Tue, Oct 7
Air Canada Logo
8:10 am - 12:50 pmSAN-HEL
18h 40m2 stops
Air Canada Logo
6:10 am - 3:50 pmHEL-SAN
19h 40m2 stops
$516Air Canada
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Fri, Nov 7 - Tue, Nov 18
American Airlines Logo
10:48 am - 1:55 pmSAN-HEL
17h 07m2 stops
American Airlines Logo
12:30 pm - 10:20 pmHEL-SAN
19h 50m1 stop
$536American Airlines
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Wed, Sep 3 - Wed, Sep 24
Lufthansa Logo
5:15 pm - 11:50 pmSAN-HEL
20h 35m1 stop
Lufthansa Logo
6:00 am - 3:25 pmHEL-SAN
19h 25m1 stop
$542Lufthansa
Find Deal
Fri, Nov 7 - Tue, Nov 18
Scandinavian Airlines Logo
7:00 am - 10:40 amSAN-HEL
17h 40m2 stops
Scandinavian Airlines Logo
11:20 am - 11:41 pmHEL-SAN
22h 21m2 stops
$554Scandinavian Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 18
Scandinavian Airlines Logo
7:00 am - 10:40 amSAN-HEL
17h 40m2 stops
Scandinavian Airlines Logo
11:20 am - 8:49 pmHEL-SAN
19h 29m2 stops
$555Scandinavian Airlines
Find Deal
Fri, Nov 7 - Sat, Nov 15
American Airlines Logo
7:21 am - 10:45 amSAN-HEL
17h 24m1 stop
American Airlines Logo
12:30 pm - 6:05 pmHEL-SAN
15h 35m1 stop
$582American Airlines
Find Deal
Mon, Sep 15 - Wed, Sep 24
Lufthansa Logo
5:15 pm - 11:50 pmSAN-HEL
20h 35m1 stop
Lufthansa Logo
7:40 pm - 3:25 pmHEL-SAN
29h 45m1 stop
$583Lufthansa
Find Deal
Sat, Nov 22 - Sat, Nov 29
British Airways Logo
2:39 pm - 10:45 amSAN-HEL
34h 06m1 stop
British Airways Logo
7:40 pm - 4:05 pmHEL-SAN
30h 25m2 stops
$667British Airways
Find Deal
Sat, Nov 22 - Sat, Nov 29
British Airways Logo
6:00 pm - 9:10 pmSAN-HEL
17h 10m1 stop
British Airways Logo
7:50 am - 4:10 pmHEL-SAN
18h 20m1 stop
$798British Airways
Find Deal
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?

What’s the cheapest day of the week to fly from San Diego to Helsinki?

The average price of all round-trip flights from San Diego to Helsinki clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Helsinki on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from San Diego to Helsinki. For your return ticket, we recommend flying on a Thursday and avoiding Wednesdays for the best deals.

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 January, where tickets cost $527 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,277 and $1,096 respectively.

Good to know

Low seasonJanuary
Cheapest flight$507
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 18% 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 3 days, the lowest price for a flight from San Diego to Helsinki was $507 for a round-trip ticket.

  • 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?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Diego and Helsinki, with oneworld 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 $849 and an overall rating of 7.6, Finnair is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,049 and an overall rating of 7.2.

  • 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.
8.0
DeltaOverall score based on 7980 reviews
7.9Comfort
8.5Crew
8.2Boarding
7.3Food
7.9Entertainment
Airline reviews

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

4.0 OkayMrs., Jul 2025LAX - RDU
Read more Delta reviews

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

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.

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

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

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

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

Bad food, small seats that didn’t recline. I thought I was buying a quantas ticket so I feel like I got scammed

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

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.

Eventless. It was a good flight and good crew. Can’t complaint.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

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

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

Old tired plane, Uncomfortable business class seat. Breakfast dreadful and meagre. At least flight was on time!

Safe arrival. Improvement on Time efficiency Effective Communication will be great.

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

A good flight back to Tampa and thankfully although we had a 90 minute delay because of thunder storms from Charlotte to bottom iof Florida, it was a prudent to avoid these for a comfortable flight as opposed to being tossed around with turbulence.

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.

The check-in of my luggage was terrible. When purchased my tickets, one luggage and one carry-on was part of the fight. My flight was switched from British to American Airline. During check-in of luggage at the airport, I was denied and had to pay extra $75. How do I get reimbursed for this extra luggage payment?

This was the second time on BA, food terrible, bathrooms gross,( granted, that was mostly due to the disgusting children urinating all over it)boarding was late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress. Seats were painful, that's what you get for traveling like a poor in economy, right BA? Should have been able to afford business or first class if you want to actually be able to walk upright without back pain after a trip.

The delay was not communicated via text and the person who helped with check in also didn’t inform me about the delay. I ended up missing my connection and it was a waste of 5 hours. The crew didn’t mention there would be someone at the gate informing of if I would be rebooked and there was no signage. Overall a very poor experience. The British Airways app was also very buggy, and didn’t work. I will avoid flying with British Airways when possible.

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