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£135 Cheap Flights from Boise (BOI) to Salt Lake City (SLC)

View £135 flight on Sun, 6 Sept 2026Opens 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 (BOI) to Salt Lake City (SLC)

Prices were available within the past 7 days and start at £135 for one-way flights and £242 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 10 Sept - Wed, 16 Sept
BOI
Boise
SLC
Salt Lake City
£242 Return, found 5 days ago
£242
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 10 Sept from Boise to Salt Lake City, returning Wed, 16 Sept, priced at £242 found 5 days ago
Alaska Airlines
Thu, 10 Sept - Wed, 16 Sept
BOI
Boise
SLC
Salt Lake City
£256 Return, found 5 days ago
£256
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 10 Sept from Boise to Salt Lake City, returning Wed, 16 Sept, priced at £256 found 5 days ago
Alaska Airlines
Sun, 6 Sept - Thu, 10 Sept
BOI
Boise
SLC
Salt Lake City
£270 Return, found 1 day ago
£270
Return
found 1 day ago
Select Alaska Airlines flight, departing Sun, 6 Sept from Boise to Salt Lake City, returning Thu, 10 Sept, priced at £270 found 1 day ago
Alaska Airlines
Thu, 10 Sept - Wed, 16 Sept
BOI
Boise
SLC
Salt Lake City
£271 Return, found 5 days ago
£271
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 10 Sept from Boise to Salt Lake City, returning Wed, 16 Sept, priced at £271 found 5 days ago
Alaska Airlines
Sun, 6 Sept - Thu, 10 Sept
BOI
Boise
SLC
Salt Lake City
£277 Return, found 1 day ago
£277
Return
found 1 day ago
Select Alaska Airlines flight, departing Sun, 6 Sept from Boise to Salt Lake City, returning Thu, 10 Sept, priced at £277 found 1 day ago
Alaska Airlines
Thu, 10 Sept - Wed, 16 Sept
BOI
Boise
SLC
Salt Lake City
£279 Return, found 5 days ago
£279
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 10 Sept from Boise to Salt Lake City, returning Wed, 16 Sept, priced at £279 found 5 days ago
Alaska Airlines
Thu, 10 Sept - Wed, 16 Sept
BOI
Boise
SLC
Salt Lake City
£282 Return, found 5 days ago
£282
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 10 Sept from Boise to Salt Lake City, returning Wed, 16 Sept, priced at £282 found 5 days ago
Alaska Airlines
Thu, 10 Sept - Wed, 16 Sept
BOI
Boise
SLC
Salt Lake City
£290 Return, found 5 days ago
£290
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 10 Sept from Boise to Salt Lake City, returning Wed, 16 Sept, priced at £290 found 5 days ago
Alaska Airlines
Sun, 6 Sept - Thu, 10 Sept
BOI
Boise
SLC
Salt Lake City
£291 Return, found 16 hours ago
£291
Return
found 16 hours ago
Select Alaska Airlines flight, departing Sun, 6 Sept from Boise to Salt Lake City, returning Thu, 10 Sept, priced at £291 found 16 hours ago
Alaska Airlines
Thu, 12 Nov - Thu, 19 Nov
BOI
Boise
SLC
Salt Lake City
£292 Return, found 1 day ago
£292
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 12 Nov from Boise to Salt Lake City, returning Thu, 19 Nov, priced at £292 found 1 day ago

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

March is typically the cheapest month to fly

From £152 - £333 per traveller.

Frequently asked questions

How much does a flight from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.) cost?
You can find one-way and return flights from BOI to SLC with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when BOI to SLC ticket fares go up or down.
What is the cheapest month to fly from Boise, ID (BOI) to Salt Lake City, UT (SLC)?
The cheapest months to fly from Boise, ID (BOI) to Salt Lake City, UT (SLC) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.)?
Only one airline offers direct flights from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.). Delta operates 42 direct flights from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.) every week.
How do I find cheap flights from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.)?
To find a cheap flight from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.)?
The best airline to fly with from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.) will differ from traveler to traveler. If you like to fly early, Delta offers early morning flights. If price is the most important factor, Delta typically offers the lowest fares. Alaska Airlines offers the most daily flights from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Boise, ID (BOI) to Salt Lake City, UT (SLC)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.)?
You'll find around 6 nonstop flights per day from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.). For even more choices, look at flights that include layovers, as there are approximately 37 connecting flights per day. Some common connection points include Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), and Denver Intl. (DEN).
What is the earliest flight from Boise, ID (BOI) to Salt Lake City, UT (SLC)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from Boise, ID (BOI) to Salt Lake City, UT (SLC). To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.)?
You'll typically find the most flights from Boise, ID (BOI) to Salt Lake City, UT (SLC) on a Friday, with around 47 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Alaska Airlines, Southwest Airlines, and United.
What are the most popular departure times for flights from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.)?
The most popular departure times for flights from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.) are in the early morning, from 6am to 9am. Many major carriers, including Southwest Airlines, Alaska Airlines and Delta, offer flights during this window. Many travelers prefer this because it allows for an early start to their day in Salt Lake City.
How long does it take to fly from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.)?
A nonstop flight from BOI to SLC typically takes around 1 hour 20 minutes, covering approximately 467 kilometers. Connecting flights on this route usually add 3 hours 30 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.)?
Yes, you can fly business class or first class between BOI and SLC. You can fly business class with Frontier Airlines and Delta.First class cabins are available on Alaska Airlines, United, Delta, and American Airlines.
How do I earn miles on a Boise, ID (BOI) to Salt Lake City, UT (SLC) flight with Expedia?
It's easy to earn miles on a Boise, ID (BOI) to Salt Lake City, UT (SLC) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Boise, ID (BOI) to Salt Lake City, UT (SLC) at the last minute?
Typically, booking a last minute flight from Boise, ID (BOI) to Salt Lake City, UT (SLC) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Boise, ID (BOI) to Salt Lake City, UT (SLC) flight and hotel package?
Securing a Boise, ID (BOI) to Salt Lake City, UT (SLC) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals 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, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.)?
If you booked your Boise, ID (BOI) to Salt Lake City, UT (SLC-Salt Lake City Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Boise
Destination airport
Salt Lake City Intl.
Airlines serving
Alaska Airlines
Return price
£241
Distance
463 km
Average flight time
1 hour 17 mins

Book with confidence

Compare flights from Boise to Salt Lake City easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Boise to Salt Lake City. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Salt Lake City Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Boise to Salt Lake City Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Boise (BOI) to Salt Lake City Intl. (SLC)

The easiest way to view the best deals on flights from Boise to Salt Lake City today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Boise to Salt Lake City Intl. start at just £242 and range up to £292.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Boise and Salt Lake City
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Boise to Salt Lake City flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Boise to Salt Lake City Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Boise to Salt Lake City easily and book with confidence

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*Available to Expedia members.