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$432+ Cheap flights from San Antonio (SAT) to Helsinki (HEL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — HEL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from San Antonio to Helsinki

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$432
(Finnair)

Popular in

August

Cheapest in

November

Average price

$959
From San Antonio to Helsinki-Vantaa
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Highest demand for flights based on searches. 16% potential increase in price ($169 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Antonio to Helsinki

Cheapest flights from San Antonio to Helsinki
Explore the most affordable flight options available from San Antonio to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Finnair deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:26 pmSAT - HEL
1 stop16h 54mMultiple Airlines
Tue 11/412:30 pmHEL - SAT
1 stop15h 40mMultiple Airlines
Deal found 9/13$432
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2810:11 amSAT - HEL
1 stop17h 34mAmerican Airlines
Tue 11/412:30 pmHEL - SAT
2 stops19h 29mAmerican Airlines
Deal found 9/13$436
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:35 amSAT - HEL
2 stops21h 50mDelta
Tue 11/46:30 amHEL - SAT
2 stops25h 50mDelta
Deal found 9/13$481
This Scandinavian Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:23 pmSAT - HEL
2 stops20h 02mScandinavian Airlines
Tue 11/47:00 amHEL - SAT
3 stops24h 46mScandinavian Airlines
Deal found 9/13$540

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Helsinki that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from San Antonio to Helsinki that are best for you.

Fly from

San Antonio

Fly to

Helsinki

Route

Depart

Return

Price

San AntonioHelsinki

SAT - HEL

SATHEL

San Antonio

Tue 10/28

3:26 pm-3:20 pm

1 stop16h 54m

Helsinki-Vantaa

Tue 11/4

12:30 pm-8:10 pm

1 stop15h 40m

$432

San AntonioHelsinki

SAT - HEL

SATHEL

San Antonio

Sun 1/18

10:20 am-10:45 am

1 stop16h 25m

Helsinki-Vantaa

Wed 2/18

12:30 pm-12:08 am

1 stop19h 38m

$432

San AntonioHelsinki

SAT - HEL

SATHEL

San Antonio

Tue 10/28

10:11 am-10:45 am

1 stop17h 34m

Helsinki-Vantaa

Tue 11/4

12:30 pm-11:59 pm

2 stops19h 29m

$436

San AntonioHelsinki

SAT - HEL

SATHEL

San Antonio

Sun 1/18

2:36 pm-3:10 pm

2 stops16h 34m

Helsinki-Vantaa

Wed 2/18

12:30 pm-8:00 pm

1 stop15h 30m

$469

San AntonioHelsinki

SAT - HEL

SATHEL

San Antonio

Sun 1/18

12:10 pm-4:25 pm

2 stops20h 15m

Helsinki-Vantaa

Wed 2/18

6:30 am-10:19 pm

2 stops23h 49m

$481

San AntonioHelsinki

SAT - HEL

SATHEL

San Antonio

Tue 10/28

12:23 pm-3:25 pm

2 stops20h 02m

Helsinki-Vantaa

Tue 11/4

7:00 am-11:46 pm

3 stops24h 46m

$540

San AntonioHelsinki

SAT - HEL

SATHEL

San Antonio

Wed 3/4

11:43 am-4:30 pm

2 stops20h 47m

Helsinki-Vantaa

Sun 3/8

6:55 am-9:33 pm

2 stops22h 38m

$551

San AntonioHelsinki

SAT - HEL

SATHEL

San Antonio

Wed 3/4

12:34 pm-1:55 pm

2 stops17h 21m

Helsinki-Vantaa

Sun 3/8

12:30 pm-9:48 pm

1 stop16h 18m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Best time to book a flight from San Antonio to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Helsinki

What is the cheapest month to book a flight from San Antonio to Helsinki?

Currently, November is the cheapest month in which you can book a flight from San Antonio to Helsinki (average of $444). Flying from San Antonio to Helsinki in June is currently the most expensive (average of $1,082). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAT to HEL?

Find hourly flight availability from San Antonio to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from San Antonio to Helsinki, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 21% versus a flight in the afternoon.

Reviews of airlines servicing Helsinki

Get insights into the airlines that provide service to Helsinki. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helsinki. Reviews last updated September 15, 2025.
Read reviews from past customers who have flown Finnair and American Airlines from San Antonio to Helsinki. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,323 reviews

Food

6.7

Comfort

7.5

Entertainment

6.9

Crew

8.1

Overall

7.6

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Finnair
7.6
Good
1,323 reviews
Finnair
7.6
Good
1,323 reviews

Food

6.7

Comfort

7.5

Entertainment

6.9

Crew

8.1

Overall

7.6

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,323 reviews

Food

6.7

Comfort

7.5

Entertainment

6.9

Crew

8.1

Overall

7.6

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Antonio to Helsinki?

    A quick flight from San Antonio to Helsinki can take about 16h 25m. American Airlines provides one of the quickest options available for as low as $432. San Antonio and Helsinki are separated by a distance of 5454 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from San Antonio to Helsinki round-trip?

    Our cheapest airline available from San Antonio to Helsinki is American Airlines. Our recent data shows that you can find tickets from as low as $479 on this airline. An additional option worth looking into is Finnair, starting at $515. These flights start at 45% lower than the current average price 3 months from now.

  • Can I find deals for flights from San Antonio to Helsinki that include hotel bookings?

    Yes. In addition to deals on San Antonio to Helsinki flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Helsinki?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Helsinki.

  • Can I find deals for business class flights from San Antonio to Helsinki?

    Yes. Cheapflights offers flight deals from San Antonio to Helsinki by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Helsinki?

    Currently, November is the cheapest month in which you can book a flight from San Antonio to Helsinki (average of $444). Flying from San Antonio to Helsinki in June is currently the most expensive (average of $1,082). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Lahti

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Top 2 airlines flying from San Antonio to Helsinki

Discover the top 2 airlines that operate flights from San Antonio to Helsinki. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$479Average$1,254FlexibilityNo cancel feeOn-time71%
FinnairCheapest$498Average$609FlexibilityNo cancel feeOn-time76%

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