Alaska AirlinesDepart11:33
Thu, Nov 12SUN → BOI
5h 57m · 2 stops
$463one way, per person
View deal
- Cheapest fare
- $463
- Cheapest month
- November
- Direct flights
- Not recently
- Quickest trip
- 3h 27m
Alaska Airlines · Thu, Nov 12
from $463
Usually 1+ stop
150 km
Get a price alert
We'll email you when Sun Valley → Boise drops to your price. It's free, and you can stop any time.
Today's cheapest fare is $463. We'll send one email to confirm. See our privacy policy.
Cheapest month to fly from Sun Valley 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.
Alaska AirlinesAlaska AirlinesDepart11:33
Fri, Nov 13SUN → BOI
3h 27m · 1 stop
$489one way, per person
View deal
Plan the rest of your trip to Boise
Where to stay, what to do and getting around, from our travel partners.
About flights from Sun Valley to Boise
Sun Valley (SUN) and Boise (BOI) are about 150 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 27m. Over the next few months, one-way fares start from $463, 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 Sun Valley to Boise?
The cheapest one-way fare we've seen recently is $463 with Alaska Airlines, departing Thursday, November 12, 2026.
What is the cheapest month to fly from Sun Valley to Boise?
November 2026 currently has the lowest fares, from $463 one way.
Are there direct flights from Sun Valley to Boise?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from Sun Valley to Boise?
The quickest journey we've seen takes about 3h 27m. Sun Valley and Boise are around 150 km apart.
Which airlines fly from Sun Valley to Boise?
Recent fares on this route were with Alaska Airlines.