$457 Cheap Flights from San Juan (SJU) to Helsinki (HEL)

View $457 flight on Sat, Jan 10, 2026Opens in a new window

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Helsinki-Vantaa Airport (HEL)

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Cheap Flights from San Juan to Helsinki (SJU-HEL)

Prices were available within the past 7 days and start at $457 for one-way flights and $562 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, Dec 29 - Sat, Jan 10
SJU
San Juan
HEL
Helsinki
$562 Roundtrip, found 2 hours ago
$562
Roundtrip
found 2 hours ago
Select British Airways flight, departing Mon, Dec 29 from San Juan to Helsinki, returning Sat, Jan 10, priced at $562 found 2 hours ago
American Airlines
Mon, Dec 29 - Sat, Jan 10
SJU
San Juan
HEL
Helsinki
$566 Roundtrip, found 2 hours ago
$566
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Mon, Dec 29 from San Juan to Helsinki, returning Sat, Jan 10, priced at $566 found 2 hours ago
British Airways
Wed, Jan 14 - Wed, Jan 21
SJU
San Juan
HEL
Helsinki
$567 Roundtrip, found 4 days ago
$567
Roundtrip
found 4 days ago
Select British Airways flight, departing Wed, Jan 14 from San Juan to Helsinki, returning Wed, Jan 21, priced at $567 found 4 days ago
Delta
Mon, Sep 29 - Thu, Oct 16
SJU
San Juan
HEL
Helsinki
$581 Roundtrip, found 2 days ago
$581
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Sep 29 from San Juan to Helsinki, returning Thu, Oct 16, priced at $581 found 2 days ago
American Airlines
Mon, Dec 29 - Sat, Jan 10
SJU
San Juan
HEL
Helsinki
$589 Roundtrip, found 2 hours ago
$589
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Mon, Dec 29 from San Juan to Helsinki, returning Sat, Jan 10, priced at $589 found 2 hours ago
Delta
Tue, Sep 30 - Thu, Oct 16
SJU
San Juan
HEL
Helsinki
$593 Roundtrip, found 2 days ago
$593
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 30 from San Juan to Helsinki, returning Thu, Oct 16, priced at $593 found 2 days ago
Delta
Mon, Oct 6 - Wed, Oct 22
SJU
San Juan
HEL
Helsinki
$593 Roundtrip, found 2 days ago
$593
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Oct 6 from San Juan to Helsinki, returning Wed, Oct 22, priced at $593 found 2 days ago
British Airways
Mon, Feb 9 - Tue, Feb 17
SJU
San Juan
HEL
Helsinki
$594 Roundtrip, found 4 days ago
$594
Roundtrip
found 4 days ago
Select British Airways flight, departing Mon, Feb 9 from San Juan to Helsinki, returning Tue, Feb 17, priced at $594 found 4 days ago
Delta
Wed, Oct 8 - Tue, Oct 21
SJU
San Juan
HEL
Helsinki
$598 Roundtrip, found 2 days ago
$598
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Oct 8 from San Juan to Helsinki, returning Tue, Oct 21, priced at $598 found 2 days ago
American Airlines
Mon, Feb 23 - Mon, Mar 2
SJU
San Juan
HEL
Helsinki
$599 Roundtrip, found 4 days ago
$599
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Feb 23 from San Juan to Helsinki, returning Mon, Mar 2, priced at $599 found 4 days ago
Flights from San Juan (SJU) to Helsinki (HEL)
Origin airport
Luis Munoz Marin Intl.
Destination airport
Vantaa
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Turkish Airlines, United
Roundtrip price
$561
Distance
5149 mi

San Juan to Helsinki Flights

The cheapest times to fly from San Juan to Helsinki

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Helsinki are during the month of December. You can find some of the cheapest flights from San Juan to Helsinki with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Juan to Helsinki

Sunday is one of the best days to book for cheap flights from San Juan to Helsinki: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Juan to Helsinki

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Helsinki in 2025. You can also book with separate airlines for your outbound and return journeys, from $457 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Helsinki flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Helsinki airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL) cost?
Discover the latest flight deals from SJU to HEL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SJU to HEL?
The cheapest flights from SJU to HEL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SJU to HEL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SJU to HEL. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL)?
There aren’t any daily direct flights available from Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be on your way in no time at all.
What day of the week has the most flights from SJU to HEL?
Usually you’ll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL)?
To avoid possible delays on the Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL) route, travel before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL) last-minute?
Booking your ticket from SJU to HEL shortly before your trip is typically more expensive. However, if there’s some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a SJU to HEL flight and hotel package?
Opting for a SJU to HEL flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our impressive range of hotels and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL)?
Generally, it’s possible to cancel or reschedule your SJU to HEL flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find more details on our Customer Service portal.

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*Available to One Key members.