$300+ Cheap flights from Boston (BOS) 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — HEL
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Helsinki with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Helsinki
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Cheapest flights from Boston to HelsinkiExplore the most affordable flight options available from Boston to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Boston to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This oojo deal was found by Cheapflights users on 9/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:35 pm -
1 stop10h 00m
Wed 12/97:00 am -
2 stops15h 45m
Deal found 9/9![Scandinavian Airlines logo]()
$379
This Scandinavian Airlines deal was found by Cheapflights users on 9/9. 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 10/135:40 pm -
1 stop14h 40m
Mon 10/196:10 am -
1 stop16h 25m
Deal found 9/9![Scandinavian Airlines logo]()
$412
This Scandinavian Airlines deal was found by Cheapflights users on 9/9. 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 10/135:40 pm -
1 stop14h 40m
Tue 10/209:15 pm -
2 stops25h 20m
Deal found 9/9![Scandinavian Airlines logo]()
$419
This oojo deal was found by Cheapflights users on 9/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:40 pm -
2 stops12h 15m
Thu 10/293:30 pm -
2 stops31h 15m
Deal found 9/7![Scandinavian Airlines logo]()
$429
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:25 am -
2 stops25h 20m
Wed 11/1812:35 pm -
1 stop13h 00m
Deal found 9/9![Multiple Airlines logo]()
$440
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:10 pm -
2 stops20h 35m
Wed 11/1812:35 pm -
1 stop13h 00m
Deal found 9/9![Multiple Airlines logo]()
$441
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:45 am -
2 stops30h 00m
Tue 3/912:35 pm -
1 stop13h 00m
Deal found 9/10![Multiple Airlines logo]()
$444
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:00 pm -
1 stop17h 00m
Tue 10/203:00 pm -
1 stop10h 50m
Deal found 9/9![Icelandair logo]()
$446
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/285:35 pm -
1 stop10h 00m
Sat 12/57:45 pm -
2 stops27h 00m
Deal found 9/10![Scandinavian Airlines logo]()
$449
This oojo deal was found by Cheapflights users on 9/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:35 pm -
1 stop10h 00m
Wed 12/169:00 pm -
2 stops25h 45m
Deal found 9/9![Scandinavian Airlines logo]()
$450
Best flights from Boston to HelsinkiDiscover carefully curated flight deals from Boston to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Boston to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 12/65:35 pm -
1 stop25h 00m
Thu 12/106:15 am -
1 stop16h 30m
Deal found 9/10![Scandinavian Airlines logo]()
$483
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 10/1210:00 pm -
1 stop11h 40m
Fri 10/236:10 am -
2 stops24h 10m
Deal found 9/9![Delta logo]()
$529
This Finnair deal was found by Cheapflights users on 9/9. 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.
Fri 12/47:15 pm -
1 stop13h 00m
Thu 12/101:25 pm -
1 stop16h 34m
Deal found 9/9![Multiple Airlines logo]()
$532
This KLM deal was found by Cheapflights users on 9/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:40 pm -
1 stop13h 25m
Thu 10/17:00 am -
1 stop16h 36m
Deal found 9/7![KLM logo]()
$598
This Scandinavian Airlines deal was found by Cheapflights users on 9/8. 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.
Sun 9/275:40 pm -
2 stops23h 10m
Thu 10/17:15 am -
2 stops15h 20m
Deal found 9/8![Scandinavian Airlines logo]()
$554
This Delta deal was found by Cheapflights users on 9/7. 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.
Wed 9/238:25 pm -
1 stop14h 15m
Wed 9/307:15 am -
2 stops18h 53m
Deal found 9/7![Delta logo]()
$557
This United deal was found by Cheapflights users on 9/6. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/284:05 pm -
1 stop13h 50m
Sat 12/57:30 pm -
1 stop30h 05m
Deal found 9/6![Multiple Airlines logo]()
$600
This Delta deal was found by Cheapflights users on 9/7. 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.
Wed 9/238:25 pm -
1 stop14h 15m
Thu 10/17:00 am -
1 stop16h 36m
Deal found 9/7![Delta logo]()
$570
This Scandinavian Airlines deal was found by Cheapflights users on 9/6. 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.
Fri 10/96:20 am -
2 stops25h 20m
Mon 10/197:15 am -
2 stops15h 20m
Deal found 9/6![Scandinavian Airlines logo]()
$581
This Delta deal was found by Cheapflights users on 9/6. 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 11/104:55 pm -
1 stop16h 45m
Sun 11/156:40 am -
1 stop19h 21m
Deal found 9/6![Delta logo]()
$575
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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.
Sun 12/135:35 pm -
2 stops23h 15m
Fri 1/86:15 am -
1 stop16h 30m
Deal found 9/7![Scandinavian Airlines logo]()
$631
Last-minute flights from Boston to HelsinkiDiscover last-minute flight deals from Boston to Helsinki. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Helsinki. Data last updated September 10, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 9/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:50 pm -
1 stop10h 10m
Wed 9/303:00 pm -
1 stop10h 50m
Deal found 9/7![Icelandair logo]()
$454
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:50 pm -
1 stop10h 10m
Wed 9/303:00 pm -
1 stop10h 50m
Deal found 9/9![Icelandair logo]()
$452
This oojo deal was found by Cheapflights users on 9/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:40 pm -
2 stops12h 15m
Mon 10/197:15 am -
2 stops15h 20m
Deal found 9/6![Scandinavian Airlines logo]()
$450
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:00 pm -
1 stop17h 00m
Tue 10/203:00 pm -
1 stop10h 50m
Deal found 9/9![Icelandair logo]()
$446
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:40 pm -
1 stop9h 55m
Mon 10/196:10 am -
1 stop16h 25m
Deal found 9/9![Scandinavian Airlines logo]()
$461
This Flightnetwork deal was found by Cheapflights users on 9/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/125:40 pm -
2 stops23h 10m
Tue 10/279:00 pm -
2 stops49h 45m
Deal found 9/10![Scandinavian Airlines logo]()
$458
This Scandinavian Airlines deal was found by Cheapflights users on 9/9. 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 10/135:40 pm -
1 stop14h 40m
Mon 10/196:10 am -
1 stop16h 25m
Deal found 9/9![Scandinavian Airlines logo]()
$412
This Scandinavian Airlines deal was found by Cheapflights users on 9/9. 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 10/135:40 pm -
1 stop14h 40m
Tue 10/209:15 pm -
2 stops25h 20m
Deal found 9/9![Scandinavian Airlines logo]()
$419
This oojo deal was found by Cheapflights users on 9/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:40 pm -
2 stops12h 15m
Thu 10/293:30 pm -
2 stops31h 15m
Deal found 9/7![Scandinavian Airlines logo]()
$429
One-way flights from Boston to HelsinkiSearch for one-way flight options from Boston to Helsinki. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Boston to Helsinki. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:50 pm -
3 stops19h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:50 pm -
3 stops30h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/37:50 pm -
3 stops40h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$316
This Lufthansa deal was found by Cheapflights users on 9/6. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:05 pm -
1 stop15h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Lufthansa logo]()
$318
This oojo deal was found by Cheapflights users on 9/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:00 pm -
1 stop17h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$326
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/37:50 pm -
1 stop10h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:30 pm -
3 stops31h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$329
This Booking.com deal was found by Cheapflights users on 9/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:45 pm -
1 stop16h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Lufthansa logo]()
$332
This oojo deal was found by Cheapflights users on 9/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2711:00 pm -
1 stop17h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Icelandair logo]()
$333
This Lufthansa deal was found by Cheapflights users on 9/6. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:05 pm -
1 stop22h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Lufthansa logo]()
$334
Find flight deals from Boston to Helsinki
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $379 (oojo) |
One-way from | $300 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $521 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston 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 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Boston to Helsinki that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonHelsinki
BOS Boston Logan Intl - HEL Helsinki-Vantaa
BOSHEL
Boston Logan Intl
Wed 12/2
7:50 pm-10:25 pm
3 stops19h 35m
Helsinki-Vantaa
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$300
BostonHelsinki
BOS Boston Logan Intl - HEL Helsinki-Vantaa
BOSHEL
Boston Logan Intl
Sun 1/3
7:50 pm-7:20 pm
3 stops40h 30m
Helsinki-Vantaa
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$317
BostonHelsinki
BOS Boston Logan Intl - HEL Helsinki-Vantaa
BOSHEL
Boston Logan Intl
Thu 10/8
8:05 pm-6:55 pm
1 stop15h 50m
Helsinki-Vantaa
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$318
BostonHelsinki
BOS Boston Logan Intl - HEL Helsinki-Vantaa
BOSHEL
Boston Logan Intl
Sun 10/11
11:00 pm-11:00 pm
1 stop17h 00m
Helsinki-Vantaa
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$326
Quickest round-trip
BostonHelsinki
BOS Boston Logan Intl - HEL Helsinki-Vantaa
BOSHEL
Boston Logan Intl
Sun 1/3
7:50 pm-1:00 pm
1 stop10h 10m
Helsinki-Vantaa
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$327
BostonHelsinki
BOS Boston Logan Intl - HEL Helsinki-Vantaa
BOSHEL
Boston Logan Intl
Wed 12/2
8:40 pm-6:45 pm
1 stop15h 05m
Helsinki-Vantaa
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$327
BostonHelsinki
BOS Boston Logan Intl - HEL Helsinki-Vantaa
BOSHEL
Boston Logan Intl
Thu 11/19
4:05 pm-4:50 pm
1 stop17h 45m
Helsinki-Vantaa
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$330
BostonHelsinki
BOS Boston Logan Intl - HEL Helsinki-Vantaa
BOSHEL
Boston Logan Intl
Mon 10/5
11:00 pm-11:25 pm
3 stops41h 25m
Helsinki-Vantaa
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$333
BostonHelsinki
BOS Boston Logan Intl - HEL Helsinki-Vantaa
BOSHEL
Boston Logan Intl
Mon 10/12
8:05 pm-6:55 pm
1 stop15h 50m
Helsinki-Vantaa
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$338
BostonHelsinki
BOS Boston Logan Intl - HEL Helsinki-Vantaa
BOSHEL
Boston Logan Intl
Fri 10/9
10:00 pm-5:30 pm
1 stop12h 30m
Helsinki-Vantaa
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$340
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Boston to Helsinki
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Helsinki in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Boston-Helsinki flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Helsinki flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Helsinki flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Helsinki flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Boston to Helsinki
Have a flexible travel schedule? Discover the best time to fly to Helsinki from Boston with our price prediction graph.
BOS-HEL
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 Boston to Helsinki
Prices
More
How far ahead should I book a flight from Boston to Helsinki?
To ensure you get the cheapest price possible for a flight from Boston to Helsinki, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Boston to Helsinki?
Currently, October is the cheapest month in which you can book a flight from Boston to Helsinki (average of $438). Flying from Boston to Helsinki in June is currently the most expensive (average of $966). 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.
How much does it cost to fly round-trip from Boston to Helsinki?
Airfare is below average for this route at the moment.
Boston to Helsinki flights typically cost between $432 and $613 in December.The cheapest round-trip price found within the last 5 days was $379 on Scandinavian Airlines (Dec 5-Dec 9).
What’s the top layover airport for flights from Boston to Helsinki?
Share of 1-stop round-trip flights from Boston to Helsinki chosen by Cheapflights users in the past 12 months, using the same layover each way.
Copenhagen (CPH) – chosen by Cheapflights users on 60% of 1-stop itineraries from Boston to Helsinki on Cheapflights.
What’s the cheapest layover airport for flights from Boston to Helsinki?
Average round-trip fare for 1-stop flights from Boston to Helsinki, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Copenhagen (CPH) is the most affordable 1-stop option, with an average round-trip price of $407.
What’s the fastest layover option from Boston to Helsinki?
Shortest average travel time for 1-stop one-way flights from Boston to Helsinki, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Copenhagen (CPH) have the shortest average one-way travel time for 1-stop routes: 9h 55m.
Which airport typically offers the quickest layover for flights from Boston to Helsinki?
Average layover duration for 1-stop one-way flights from Boston to Helsinki, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Copenhagen (CPH) offer the fastest connection on this route, with an average layover time of 1h 15m.
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 10, 2026.
Peruse reviews from past customers who have flown with Delta,Finnair, andScandinavian Airlines from Boston to Helsinki to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Related info for your journey
Find useful and relevant information for your journey from Boston to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Book flights to Helsinki if you plan to visit one of these locationsVantaa
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Top 8 airlines flying from Boston to Helsinki
Discover the top 8 airlines that operate flights from Boston 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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$331 | Average$561 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$353 | Average$548 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$355 | Average$495 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$366 | Average$570 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$397 | Average$605 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$416 | Average$746 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$430 | Average$874 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$467 | Average$732 | FlexibilityNo cancel fee | On-time76% |