Cheap flights from Helena to Boise

One-way fares from $303 · HLN → BOI · prices found by travellers in the last 48 hours

Compare all dates Boise → Helena
Cheapest fare
$303

Alaska Airlines · Fri, Nov 13

Cheapest month
November

from $303

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 17m

470 km

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Cheapest month to fly from Helena to Boise

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $303

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Alaska Airlines
Depart16:41 Fri, Nov 13HLN → BOI 3h 17m · 1 stop
$303one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Boise

Where to stay, what to do and getting around, from our travel partners.

Where to stay

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Things to do

Things to do in BoiseTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in BoisePre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in BoiseCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Helena to Boise

Helena (HLN) and Boise (BOI) are about 470 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 3h 17m. Over the next few months, one-way fares start from $303, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Helena to Boise?

The cheapest one-way fare we've seen recently is $303 with Alaska Airlines, departing Friday, November 13, 2026.

What is the cheapest month to fly from Helena to Boise?

November 2026 currently has the lowest fares, from $303 one way.

Are there direct flights from Helena to Boise?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Helena to Boise?

The quickest journey we've seen takes about 3h 17m. Helena and Boise are around 470 km apart.

Which airlines fly from Helena to Boise?

Recent fares on this route were with Alaska Airlines.

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