Your next trip, last seen at €315
Lowest observedWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €315, departing 14 Feb 2027 (Last checked: 23 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 111Check live prices for this route
- Airlines seen
- Air France, Alaska Airlines, Frontier Airlines, Icelandair, KLM, Norse, Norwegian Air International, WestJet (8)
- Typical journey time
- 28h 29m
About this route
Explore the fares we observed from Boise to Helsinki. Prices move often, so pick your dates to see the latest options.
- Route distance
- 7,946 km
- Typical journey time
- 28h 29m
- Seen on fares with a connection
- Alaska Airlines, Icelandair, Frontier Airlines, Norwegian Air International
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
Airport to city: straight-line distance
- Boise Air Terminal/Gowen Field (BOI) → Boise, city gazetteer reference point (43.6150, -116.2023): ≈ 6 km.
- Helsinki Vantaa (HEL) → Helsinki, city gazetteer reference point (60.1699, 24.9384): ≈ 16 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Boise to Helsinki: February 2027, from €315 (checked 23 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €668 | 3 |
| November 2026 | €403 | 30 |
| December 2026 | €419 | 23 |
| January 2027 | €317 | 31 |
| February 2027 | €315 | 23 |
Lowest fare by day of the week
Cheapest day of the week from Boise to Helsinki: Tuesday, from €315 (checked 23 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €316 | 16 |
| Tuesday | €315 | 16 |
| Wednesday | €315 | 16 |
| Thursday | €360 | 15 |
| Friday | €360 | 16 |
| Saturday | €335 | 15 |
| Sunday | €315 | 17 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Boise to Helsinki by days until departure (61 days or more): €315 (checked 23 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €478 | 8 |
| 8 to 30 days | €403 | 23 |
| 31 to 60 days | €419 | 22 |
| 61 days or more | €315 | 58 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Lowest one-way fare we saw per airline
Cheapest airline from Boise to Helsinki: Frontier Airlines, from €403 (checked 23 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Frontier Airlines | €403Nov 24, 2026 | 6 |
| Icelandair | €416Jan 20, 2027 | 12 |
| Alaska Airlines | €419Dec 1, 2026 | 54 |
| Norwegian Air International | €437Dec 28, 2026 | 3 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Boise to Helsinki?
The lowest fare Routavio has observed is €315, found on 23 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Boise to Helsinki?
Cheapest month from Boise to Helsinki: February 2027, from €315 (checked 23 Oct 2026).
Are there direct flights from Boise to Helsinki?
Our data holds no non-stop flight from Boise to Helsinki. The fares on this page include at least one stop.
Which airlines fly from Boise to Helsinki?
Routavio has seen these carriers on the route: Air France, Alaska Airlines, Frontier Airlines, Icelandair, KLM, Norse, Norwegian Air International, WestJet (8).
How long does the flight from Boise to Helsinki take?
Across the 83 fares Routavio observed, the average journey time is 30h 50m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Boise to Helsinki fares were non-stop?
None of the 83 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
Which day of the week is cheapest from Boise to Helsinki?
Cheapest day of the week from Boise to Helsinki: Tuesday, from €315 (checked 23 Oct 2026).
Which airline has the lowest fare from Boise to Helsinki?
Cheapest airline from Boise to Helsinki: Frontier Airlines, from €403 (checked 23 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 23 Oct 2026