The cheapest times to fly from SLC to BOI are
- January 1st to February 4th
- April 23rd to May 13th
- August 6th to November 18th
- early December
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SLC to BOI is early December. Prices can be as high as $349 for Sunday flights during early to mid March, or as low as $180 for Wednesday flights around early December.
When to Fly to Boise
Flying from Salt Lake City, UT (SLC) to Boise, ID (BOI) will usually cost between $187 to $275 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early December with an average ticket price of $208. Due to high demand the most expensive time to fly is early to mid March, with an average price of $268. Planning your trip to low-cost times can easily save you $60 on economy flights and even more on first-class flights. Generally, any price below $225 can be considered a good price for a round-trip SLC to BOI flight.
See below for a graph of average weekly prices for the SLC to BOI route. All prices are for round-trip tickets in USD.
Compared to other flights, the SLC to BOI flight is much cheaper than the average and costs much less than the average flight leaving from Salt Lake City. The average price per mile (for a direct flight) is $0.48, which is a bit above average.
Flight Prices by Day of the Week
Wednesday is usually the cheapest day to fly to BOI, and Tuesday the cheapest day to fly back into SLC. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $52 (21%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $195. Return trip prices are from the BOI to SLC flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from SLC to BOI can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 30 minutes may be realistic.
Alternative Nearby Airports
Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from SLC to BOI while comparing.
- 115 miles (185 km) away from BOI
- Usually 17.11% less expensive than BOI
- Nonstop flights available
Flight Questions Answered
Still have questions about flying from SLC to BOI? We’ve got answers.
Which airlines fly this route?
You can find 7 major airlines flying this route most often: Alaska, American, Delta, Emirates, Frontier, Southwest, United, and potentially more during busy seasons.
How far away is it from Boise Air Terminal Airport to Salt Lake City International Airport?
The distance between the two airports is roughly 290 miles or 467 kilometers.
How long does it take to fly from SLC to BOI?
The real-world flight time for a nonstop SLC to BOI flight is about 1 hour 30 minutes.
How many flights go between Salt Lake City, UT and Boise, ID?
It depends on the day of the week and the date, but a typical day might have around 64 available flights from SLC to BOI.
Airport Location Info
|Origination airport name||Salt Lake City International Airport|
|City||Salt Lake City, UT|
|Country||the United States|
|Destination airport name||Boise Air Terminal Airport|
|Country||the United States|
Late and Early Flight Data
Flights from SLC to BOI tend to depart late far less frequently than the average flight. According to our recently updated data, 21% of flights departed 5 or more minutes late, and 8% of flights left 5 or more minutes early. On average you can expect to leave BOI heading for SLC about 3 minutes late. This does not significantly impact arrival time, as the average landing time in Boise, ID is about 4 minutes early. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- Delta: 3 minutes late
- SkyWest: 3 minutes late
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.