Cheap flights To Southwest Idaho (BOI) from $55

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Cheap Flights to Southwest Idaho from $55 One Way, $87 Round Trip

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Fri, Feb 27 - Sun, Mar 8
DEN
Denver Intl.
BOI
Boise
$87 Roundtrip, found 3 days ago
$87
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Feb 27 from Denver Intl. to Boise, returning Sun, Mar 8, priced at $87 found 3 days ago
Sat, Apr 11 - Tue, Apr 14
SEA
Seattle - Tacoma Intl.
BOI
Boise
$137 Roundtrip, found 2 days ago
$137
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Apr 11 from Seattle - Tacoma Intl. to Boise, returning Tue, Apr 14, priced at $137 found 2 days ago
Sat, May 9 - Tue, May 12
SEA
Seattle - Tacoma Intl.
BOI
Boise
$137 Roundtrip, found 6 days ago
$137
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, May 9 from Seattle - Tacoma Intl. to Boise, returning Tue, May 12, priced at $137 found 6 days ago
Sat, Mar 7 - Tue, Mar 10
PHX
Sky Harbor Intl.
BOI
Boise
$148 Roundtrip, found 2 days ago
$148
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Sat, Mar 7 from Sky Harbor Intl. to Boise, returning Tue, Mar 10, priced at $148 found 2 days ago
Tue, Apr 28 - Sat, May 9
LAX
Los Angeles Intl.
BOI
Boise
$157 Roundtrip, found 2 days ago
$157
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Apr 28 from Los Angeles Intl. to Boise, returning Sat, May 9, priced at $157 found 2 days ago
Tue, Apr 14 - Tue, Apr 14
DEN
Denver Intl.
BOI
Boise
$178 Roundtrip, found 1 day ago
$178
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Apr 14 from Denver Intl. to Boise, returning Tue, Apr 14, priced at $178 found 1 day ago
Thu, Apr 16 - Sun, Apr 19
DFW
Dallas-Fort Worth Intl.
BOI
Boise
$190 Roundtrip, found 8 hours ago
$190
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Thu, Apr 16 from Dallas-Fort Worth Intl. to Boise, returning Sun, Apr 19, priced at $190 found 8 hours ago
Sat, Apr 18 - Mon, Apr 20
SEA
Seattle - Tacoma Intl.
BOI
Boise
$191 Roundtrip, found 2 days ago
$191
Roundtrip
found 2 days ago
Select United flight, departing Sat, Apr 18 from Seattle - Tacoma Intl. to Boise, returning Mon, Apr 20, priced at $191 found 2 days ago
Tue, Feb 24 - Sat, Mar 7
DEN
Denver Intl.
SUN
Friedman Memorial
$201 Roundtrip, found 6 days ago
$201
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Feb 24 from Denver Intl. to Friedman Memorial, returning Sat, Mar 7, priced at $201 found 6 days ago
Sat, Mar 28 - Mon, Mar 30
SEA
Seattle - Tacoma Intl.
SUN
Friedman Memorial
$234 Roundtrip, found 3 hours ago
$234
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Sat, Mar 28 from Seattle - Tacoma Intl. to Friedman Memorial, returning Mon, Mar 30, priced at $234 found 3 hours ago

Southwest Idaho Flight Information

Traveling To
Southwest Idaho
Destination Airport IATA Code
BOI
Number of Airlines Serving
Airlines
Frontier Airlines, Southwest Airlines, Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Flight Price
$87
Earliest Departing Flight
Latest Departing Flight

Book Your Flight & Hotel Together & Save

Southwest Idaho economy flight packages

Price found within the past 48 hours. Click for updated prices.
Boise Guest House
2.0-star property

Boise Guest House

Apr 3 - Apr 6

3 night stay

Phoenix (PHX) to Boise (BOI)

American Airlines • Coach

Boise (BOI) to Phoenix (PHX)

Southwest Airlines • Coach
Price was $479, price is now $368 per person
$368
per person
found 1 day ago
The Avery Hotel
3.5-star property

The Avery Hotel

Apr 3 - Apr 6

3 night stay

Phoenix (PHX) to Boise (BOI)

American Airlines • Coach

Boise (BOI) to Phoenix (PHX)

Southwest Airlines • Coach
Price was $592, price is now $418 per person
$418
per person
found 1 day ago
Hotel 43
4.0-star property

Hotel 43

Apr 3 - Apr 6

3 night stay

Phoenix (PHX) to Boise (BOI)

American Airlines • Coach

Boise (BOI) to Phoenix (PHX)

Southwest Airlines • Coach
Price was $508, price is now $387 per person
$387
per person
found 1 day ago
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Southwest Idaho first class flight packages

Price found within the past 48 hours. Click for updated prices.
Courtyard by Marriott Boise West Meridian
3.0-star property

Courtyard by Marriott Boise West Meridian

9/10 Wonderful! (1,001 reviews)

Mar 13 - Mar 15

2 night stay

Phoenix (PHX) to Boise (BOI)

Alaska Airlines • Non-stop roundtrip • FirstClass
Price was $726, price is now $680 per person
$680
per person
found 12 hours ago
Front desk staff and maids very good, breakfast was expensive, nothing free ( not even coffee refills).

Reviewed on Dec 30, 2025

The Avery Hotel
3.5-star property

The Avery Hotel

9.6/10 Exceptional! (309 reviews)

Mar 13 - Mar 15

2 night stay

Phoenix (PHX) to Boise (BOI)

Alaska Airlines • Non-stop roundtrip • FirstClass
Price was $852, price is now $790 per person
$790
per person
found 6 hours ago
This boutique is so nice and very beautifully decorated.

Reviewed on Aug 14, 2025

Hotel 43
4.0-star property

Hotel 43

9.2/10 Wonderful! (341 reviews)

Mar 13 - Mar 15

2 night stay

Phoenix (PHX) to Boise (BOI)

Alaska Airlines • Non-stop roundtrip • FirstClass
Price was $816, price is now $769 per person
$769
per person
found 6 hours ago
Great hotel! Super helpful and friendly staff. Clean room and comfortable bed. Would stay here again.

Reviewed on Dec 10, 2025

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Southwest Idaho

If you are looking for discount prices on flights to Southwest Idaho then look no further than Orbitz. With some of the best deals available, cutting-edge technology, and great customer service, Orbitz makes booking Southwest Idaho flights easy and affordable.

Booking Made Easy

With Orbitz’s Display Matrix, booking flights to Southwest Idaho is simple. Just one glance gives you all the pricing information you need, including your discounts and savings. View all your options before selecting and booking your perfect Southwest Idaho flights.

Manage Travel Plans on the Move

By using Orbitz’s free apps for iPhone and Android, and an easy-to-use mobile browser at m.orbitz.com, booking flights to Southwest Idaho has never been so convenient. Check for updates and alerts wherever you are, or manage your booking quickly. And we also offer mobile exclusive deals on hotels, so don’t delay—book right away.

The Complete Package

Orbitz makes it stress-free to book Southwest Idaho flights, and we can also help you figure out the rest of your trip just as easily. If you need great deals on hotels and car rentals following your flights to Southwest Idaho, just add the details to your booking and search for the cheapest deals out there. And why waste time lining up for admission to attractions and events? With Orbitz, you can book tickets in advance and waltz straight in.

Low Price Guarantee

Booking your Southwest Idaho flights with Orbitz guarantees low prices every day, all day—no matter when and where you book. You will always find the best deals available, coupled with extra great savings and discounts for all around great value.

Frequently asked questions

Which airlines fly to Southwest Idaho?
There are 20 air carriers that venture to Friedman Memorial Airport (SUN). With such a variety of options, there's a great chance you'll land a low-priced flight! Your Southwest Idaho vacation awaits with one of these top domestic carriers:

  • Delta - 33 flights to Southwest Idaho per month
  • United Airlines - 17 flights to Southwest Idaho per month
  • Alaska Airlines - 1 flights to Southwest Idaho per month

How much is a flight to Southwest Idaho?
Return fares dipped as low as $87 this week to Southwest Idaho, and peaked at $234. Travelers departing Denver (DEN) managed to snap up one-way fares starting at just $55.
How to book the cheapest flight to Southwest Idaho?
Scoring cheap flights to Southwest Idaho is as simple as booking with Orbitz. But if you're eager to make sure you're getting the best flight deals around, here are a few tips worth following:

  • Departing from or landing at nearby airports may work out to be cheaper. Enter your preferred departure and arrival airports. Next, select the 'Nearby airports' function below to compare your options.
  • If your travel plans aren't written in stone, click on the 'Show flexible dates' option to bring up the flight deals for a selection of departure dates. Go with any suitable cheaper fare that pops up.
  • You can also select the 'Show options' link to filter results for your preferred carrier, seating class, nonstop flights and refundable flights. Under 'Sort & Filter' to the left, you can even pick the time of day you want to fly.
  • If you've worked out your travel dates, don't drag your feet booking a flight. Airfares normally climb as the departure date nears.
  • Combine your flights, hotels and car rental into a money-saving package deal. Save your dollars for things that really excite you, like discovering every corner of Southwest Idaho.
  • Flying during busier seasons often means costly airfares. Try to plan your vacation outside of popular periods, such as Christmas, New Year's Eve and Easter.

What is the best time to book a flight to Southwest Idaho?
If your schedule allows, book your tickets to Southwest Idaho in January. This is the best month for low airfares, closely followed by February and August. With a bit of time and planning, you're bound to find a cheap flight with Orbitz.
What day of the week is the cheapest to book a flight to Southwest Idaho?
In general, Tuesdays, Wednesdays and Saturdays are the cheapest days to book flights to Southwest Idaho. If you want the best airfares, search across those days and you could score a terrific flight deal.
What is the cheapest day of the week to fly to Southwest Idaho?
According to Orbitz data from 2020, you'll want to kick off your vacation on a Monday to nab cheap flights to Southwest Idaho. Next cheapest day? Tuesday. Saturday will set you back the most. So, leave early in the week if you'd love to score a bargain fare and stretch your travel budget.
What is the cheapest month to fly to Southwest Idaho?
We won't keep you in suspense — based on Orbitz data, August is generally the most affordable month to fly. Ideal for those who need a weekend getaway or just an escape from it all before the weather changes. Be aware that the least affordable time to fly is in the middle of summer, with airfares peaking in June.
Which airlines allow free cancellation?
When you search for flights on Orbitz, select "Filter by flexible change policies." This filter will quickly find all the airlines offering free cancellation within 24 hours of booking and no change fees. Breathe easy knowing that if things unexpectedly change, your ticket can too.
What do I need for the flight to Southwest Idaho?
Whether you're a seasoned flyer or you're new to the skies, it helps to be prepared when traveling. Here are several things to keep in mind:

  • You'll need to take all applicable travel documents and identification. How much will depend on where you're flying from. When you book, you should always use the correct name, gender and birth date as stated on your government-issued ID.
  • A properly packed carry-on bag is the key to flying in comfort. Given your flight to Southwest Idaho is no short hop, take enough snacks and things to keep you happy. A book, magazine or e-reader will help the hours pass.
  • Plane cabins often get chilly. If you decide to fly during the height of summer, be sure to take some warm clothes with you.

How do I get cheap first-class/business deals to Southwest Idaho?
If you think a first or business-class ticket is out of your price range, you may want to think again. Here are just a few tips to help you find a premium flight to Southwest Idaho for less:

  • Be more flexible with your travel dates and hold out for big sales on first or business-class airfares.
  • Search for a low-cost carrier that offers business-class seats. They usually come with more legroom and a glass of Champagne — but without the high price.
  • Take advantage of your airline's rewards program and use points to upgrade your seat. Alternatively, you can try bidding for an upgrade in online auctions.

What is the best time to go to Southwest Idaho?
If you want to soak up the vibe of Southwest Idaho in the peak season, March, May and August are the prime months to visit. June 20 marks the onset of summertime in the Northern Hemisphere and is an awesome time to go if you love the outdoors. Around this time of the year, average daily temperatures generally range from 50 ºF to 80 ºF.

More to Explore

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.