$67 Cheap Flights from Boise (BOI) to Salt Lake City (SLC)

View $67 flight on Sun, Sep 28, 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to Salt Lake City International Airport (SLC)

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Cheap Flights from Boise to Salt Lake City (BOI-SLC)

Prices were available within the past 7 days and start at $67 for one-way flights and $126 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, Sep 18 - Fri, Sep 26
BOI
Boise
SLC
Salt Lake City
$126 Roundtrip, found 2 hours ago
$126
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Thu, Sep 18 from Boise to Salt Lake City, returning Fri, Sep 26, priced at $126 found 2 hours ago
Spirit Airlines
Thu, Sep 18 - Fri, Sep 19
BOI
Boise
SLC
Salt Lake City
$151 Roundtrip, found 3 days ago
$151
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Thu, Sep 18 from Boise to Salt Lake City, returning Fri, Sep 19, priced at $151 found 3 days ago
Southwest Airlines
Tue, Sep 9 - Mon, Sep 15
BOI
Boise
SLC
Salt Lake City
$158 Roundtrip, found 1 day ago
$158
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Sep 9 from Boise to Salt Lake City, returning Mon, Sep 15, priced at $158 found 1 day ago
Spirit Airlines
Sun, Sep 7 - Fri, Sep 12
BOI
Boise
SLC
Salt Lake City
$160 Roundtrip, found 7 hours ago
$160
Roundtrip
found 7 hours ago
Select Spirit Airlines flight, departing Sun, Sep 7 from Boise to Salt Lake City, returning Fri, Sep 12, priced at $160 found 7 hours ago
Southwest Airlines
Tue, Oct 28 - Fri, Oct 31
BOI
Boise
SLC
Salt Lake City
$163 Roundtrip, found 3 days ago
$163
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Tue, Oct 28 from Boise to Salt Lake City, returning Fri, Oct 31, priced at $163 found 3 days ago
Spirit Airlines
Thu, Oct 2 - Sat, Oct 4
BOI
Boise
SLC
Salt Lake City
$165 Roundtrip, found 1 hour ago
$165
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Thu, Oct 2 from Boise to Salt Lake City, returning Sat, Oct 4, priced at $165 found 1 hour ago
Spirit Airlines
Sun, Oct 5 - Mon, Oct 6
BOI
Boise
SLC
Salt Lake City
$166 Roundtrip, found 2 days ago
$166
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Sun, Oct 5 from Boise to Salt Lake City, returning Mon, Oct 6, priced at $166 found 2 days ago
Frontier Airlines
Thu, Oct 2 - Mon, Oct 6
BOI
Boise
SLC
Salt Lake City
$169 Roundtrip, found 7 hours ago
$169
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Oct 2 from Boise to Salt Lake City, returning Mon, Oct 6, priced at $169 found 7 hours ago
Alaska Airlines
Tue, Sep 9 - Mon, Sep 15
BOI
Boise
SLC
Salt Lake City
$186 Roundtrip, found 1 day ago
$186
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 9 from Boise to Salt Lake City, returning Mon, Sep 15, priced at $186 found 1 day ago
Hawaiian Airlines
Sat, Sep 20 - Tue, Sep 30
BOI
Boise
SLC
Salt Lake City
$242 Roundtrip, found 3 days ago
$242
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Sat, Sep 20 from Boise to Salt Lake City, returning Tue, Sep 30, priced at $242 found 3 days ago

Find the cheapest month to fly from Boise (BOI) to Salt Lake City (SLC)

August is typically the cheapest month to fly

From $92 - $405 per traveler.

Graph displaying average flight prices per month

Alternative airports near Salt Lake City

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Salt Lake City Intl. SLC. Cheapest and Closest option available. Average driving time to city center is 12 minutes. Flights from $369
SLC
Salt Lake City Intl.
CheapestClosest
Average driving time to city center12 min
Flights from $369
Flights from Boise (BOI) to Salt Lake City (SLC)
Origin airport
Boise
Destination airport
Salt Lake City Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$126
Distance
289 mi
Average flight time
1 hour 15 mins

Boise to Salt Lake City Flights

The cheapest times to fly from Boise to Salt Lake City

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boise to Salt Lake City are during the month of September. You can find some of the cheapest flights from Boise to Salt Lake City with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Salt Lake City

Sunday is one of the best days to book for cheap flights from Boise to Salt Lake City: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boise to Salt Lake City

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boise to Salt Lake City in 2025. You can also book with separate airlines for your outbound and return journeys, from $67 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boise to Salt Lake City flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boise to Salt Lake City airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC) cost?
Snag cheap return fares starting at $259 from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Delta flight leaving BOI on August 18 2025 and touching down at SLC. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from BOI to SLC?
The cheapest flights from BOI to SLC are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC)?
When setting off from Boise Airport (BOI), you can hop on a nonstop flight to Salt Lake City Intl. Airport (SLC) with Delta Air Lines.
What is the cheapest airline that flies from BOI to SLC?
Right now, the cheapest airline offering one-way flights from BOI to SLC is Delta. You can jet off on this route from $249. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BOI on October 14 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC)?
Every day, an average of 4 direct flights take off from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC). Choose the departure date that fits your schedule best.
What are the most popular departure times for flights from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC)?
Flights between BOI and SLC are their busiest at 6 AM. If you're after a quieter experience and potentially cheaper prices, look for a time when demand is lower.
What day of the week has the most flights from BOI to SLC?
Saturday has the most flights from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC). Consider jetting off on this day and you'll have a greater chance of finding a departure that fits your schedule.
What is the earliest flight from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC)?
Hop on the earliest flight at around 5:55AM UTC-7, departing from Boise Airport (BOI). You'll be traveling for around 1h 17m, landing at Salt Lake City Intl. Airport (SLC) at approximately 7:12AM UTC-7.
How long does it take to fly from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC)?
Flights from BOI to SLC have an average travel time of 1 hour and 18 minutes. The distance between the two airports is 290 mi.
What airline has the least delays from BOI to SLC?
American Airlines has the best performance for on-time direct flights from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC), with an on-time score of 100%. Use the Expedia App to see your flight status before you take off and get real-time alerts about any changes.
What is the best time to fly from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC)?
To reach Salt Lake City Intl. Airport (SLC) on time, choose a flight that leaves from Boise Airport (BOI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Salt Lake City from Boise Airport (BOI)?
Check out your flight options from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC). This is the only airport in Salt Lake City you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC) last-minute?
Last-minute fares from BOI to SLC are generally more expensive. To secure the lowest rates, start searching for flights well ahead of time. That being said, if you're flexible with your travel dates, it's possible to land a cheap fare right before your trip.
Is it cheaper to book a BOI to SLC flight and hotel package?
Booking a BOI to SLC flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Salt Lake City Intl. Airport (SLC)?
In most instances, you can modify or cancel your BOI to SLC flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want more details, visit our Customer Service portal.

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*Available to One Key members.