Frontier AirlinesDepart09:28
Thu, Nov 12SLC → BOI
3h 32m · 1 stop
$171one way, per person
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- Cheapest fare
- $171
- Cheapest month
- November
- Direct flights
- Not recently
- Quickest trip
- 3h 32m
Frontier Airlines · Thu, Nov 12
from $171
Usually 1+ stop
480 km
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Cheapest month to fly from Salt Lake City 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.
Frontier AirlinesFrontier AirlinesDepart12:01
Sat, Nov 14SLC → BOI
5h 25m · 2 stops
$325one way, per person
View deal
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About flights from Salt Lake City to Boise
Salt Lake City (SLC) and Boise (BOI) are about 480 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 32m. Over the next few months, one-way fares start from $171, 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 Salt Lake City to Boise?
The cheapest one-way fare we've seen recently is $171 with Frontier Airlines, departing Thursday, November 12, 2026.
What is the cheapest month to fly from Salt Lake City to Boise?
November 2026 currently has the lowest fares, from $171 one way.
Are there direct flights from Salt Lake City to Boise?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from Salt Lake City to Boise?
The quickest journey we've seen takes about 3h 32m. Salt Lake City and Boise are around 480 km apart.
Which airlines fly from Salt Lake City to Boise?
Recent fares on this route were with Frontier Airlines.
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