$356 Cheap Flights from San Juan (SJU) to Helsinki (HEL)

View $356 flight on Mon, Mar 2, 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 $356 for one-way flights and $384 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, Mar 2 - Tue, Mar 10
SJU
San Juan
HEL
Helsinki
$384 Roundtrip, found 4 hours ago
$384
Roundtrip
found 4 hours ago
Select British Airways flight, departing Mon, Mar 2 from San Juan to Helsinki, returning Tue, Mar 10, priced at $384 found 4 hours ago
Delta
Tue, Sep 30 - Tue, Oct 7
SJU
San Juan
HEL
Helsinki
$393 Roundtrip, found 11 hours ago
$393
Roundtrip
found 11 hours ago
Select Delta flight, departing Tue, Sep 30 from San Juan to Helsinki, returning Tue, Oct 7, priced at $393 found 11 hours ago
Delta
Tue, Sep 30 - Tue, Oct 7
SJU
San Juan
HEL
Helsinki
$399 Roundtrip, found 11 hours ago
$399
Roundtrip
found 11 hours ago
Select Delta flight, departing Tue, Sep 30 from San Juan to Helsinki, returning Tue, Oct 7, priced at $399 found 11 hours ago
Delta
Mon, Sep 29 - Tue, Oct 7
SJU
San Juan
HEL
Helsinki
$405 Roundtrip, found 11 hours ago
$405
Roundtrip
found 11 hours ago
Select Delta flight, departing Mon, Sep 29 from San Juan to Helsinki, returning Tue, Oct 7, priced at $405 found 11 hours ago
British Airways
Mon, Mar 2 - Tue, Mar 10
SJU
San Juan
HEL
Helsinki
$412 Roundtrip, found 4 hours ago
$412
Roundtrip
found 4 hours ago
Select British Airways flight, departing Mon, Mar 2 from San Juan to Helsinki, returning Tue, Mar 10, priced at $412 found 4 hours ago
Delta
Sun, Sep 28 - Tue, Oct 7
SJU
San Juan
HEL
Helsinki
$418 Roundtrip, found 11 hours ago
$418
Roundtrip
found 11 hours ago
Select Delta flight, departing Sun, Sep 28 from San Juan to Helsinki, returning Tue, Oct 7, priced at $418 found 11 hours ago
Delta
Tue, Sep 30 - Tue, Oct 7
SJU
San Juan
HEL
Helsinki
$424 Roundtrip, found 11 hours ago
$424
Roundtrip
found 11 hours ago
Select Delta flight, departing Tue, Sep 30 from San Juan to Helsinki, returning Tue, Oct 7, priced at $424 found 11 hours ago
American Airlines
Wed, Feb 11 - Sun, Feb 15
SJU
San Juan
HEL
Helsinki
$433 Roundtrip, found 4 days ago
$433
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Feb 11 from San Juan to Helsinki, returning Sun, Feb 15, priced at $433 found 4 days ago
United
Wed, Dec 3 - Tue, Dec 9
SJU
San Juan
HEL
Helsinki
$439 Roundtrip, found 10 hours ago
$439
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Dec 3 from San Juan to Helsinki, returning Tue, Dec 9, priced at $439 found 10 hours ago
KLM
Tue, Sep 30 - Tue, Oct 7
SJU
San Juan
HEL
Helsinki
$444 Roundtrip, found 11 hours ago
$444
Roundtrip
found 11 hours ago
Select KLM flight, departing Tue, Sep 30 from San Juan to Helsinki, returning Tue, Oct 7, priced at $444 found 11 hours ago

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL) cost?
Get a cheap one-way flight from $356 or cheap return flight from $384 from Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL)?
March is the cheapest month to fly from SJU to HEL. Traveling during an off-peak travel window is often the key to finding a great deal.
What is the cheapest airline that flies from Luis Munoz Marin Intl. Airport (SJU) to Vantaa Airport (HEL)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from SJU to HEL. Then, sort your results by "Price (lowest to highest)" to score 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.

Travel information

Travel information

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
$383
Distance
5149 mi

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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 March. 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 $356 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.

 

San Juan to Helsinki Flights

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