Alaska AirlinesDepart21:32
Sun, Nov 15PDX → BOI
1h 14m · Direct
$221one way, per person
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- Cheapest fare
- $221
- Cheapest month
- November
- Direct flights
- Yes
- Flight time
- 1h 14m
Alaska Airlines · Sun, Nov 15
from $221
Alaska Airlines
550 km
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Cheapest month to fly from Portland to Boise
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
See every date in November 2026 →
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Where to stay, what to do and getting around, from our travel partners.
About flights from Portland to Boise
Portland (PDX) and Boise (BOI) are about 550 km apart. Direct flights take around 1h 14m, and recent direct fares were with Alaska Airlines. Over the next few months, one-way fares start from $221, 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 Portland to Boise?
The cheapest one-way fare we've seen recently is $221 with Alaska Airlines, departing Sunday, November 15, 2026.
What is the cheapest month to fly from Portland to Boise?
November 2026 currently has the lowest fares, from $221 one way.
Are there direct flights from Portland to Boise?
Yes. Recent direct fares were with Alaska Airlines.
How long is the flight from Portland to Boise?
A direct flight takes about 1h 14m. Portland and Boise are around 550 km apart.
Which airlines fly from Portland to Boise?
Recent fares on this route were with Alaska Airlines and Southwest Airlines.
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