Cheap flights To Southern Idaho (IDA) from $99

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Cheap Flights to Southern Idaho from $99 One Way, $177 Round Trip

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

Tue, Jun 2 - Sat, Jun 6
LAX
Los Angeles Intl.
BOI
Boise
$177 Roundtrip, found 4 days ago
$177
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Jun 2 from Los Angeles Intl. to Boise, returning Sat, Jun 6, priced at $177 found 4 days ago
Tue, Jun 2 - Sat, Jun 6
SEA
Seattle - Tacoma Intl.
BOI
Boise
$181 Roundtrip, found 1 day ago
$181
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Jun 2 from Seattle - Tacoma Intl. to Boise, returning Sat, Jun 6, priced at $181 found 1 day ago
Thu, Jul 23 - Tue, Jul 28
PHX
Sky Harbor Intl.
BOI
Boise
$210 Roundtrip, found 6 days ago
$210
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Jul 23 from Sky Harbor Intl. to Boise, returning Tue, Jul 28, priced at $210 found 6 days ago
Wed, Jun 3 - Tue, Jun 9
SEA
Seattle - Tacoma Intl.
IDA
Idaho Falls Regional
$222 Roundtrip, found 1 day ago
$222
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Jun 3 from Seattle - Tacoma Intl. to Idaho Falls Regional, returning Tue, Jun 9, priced at $222 found 1 day ago
Sat, Jun 6 - Mon, Jun 8
SEA
Seattle - Tacoma Intl.
SUN
Friedman Memorial
$257 Roundtrip, found 6 hours ago
$257
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Sat, Jun 6 from Seattle - Tacoma Intl. to Friedman Memorial, returning Mon, Jun 8, priced at $257 found 6 hours ago
Sat, Jan 30 - Sat, Feb 6
PHX
Sky Harbor Intl.
SUN
Friedman Memorial
$271 Roundtrip, found 1 day ago
$271
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Jan 30 from Sky Harbor Intl. to Friedman Memorial, returning Sat, Feb 6, priced at $271 found 1 day ago
Tue, Jul 28 - Tue, Aug 4
LAX
Los Angeles Intl.
IDA
Idaho Falls Regional
$276 Roundtrip, found 3 days ago
$276
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Jul 28 from Los Angeles Intl. to Idaho Falls Regional, returning Tue, Aug 4, priced at $276 found 3 days ago
Tue, Jul 14 - Wed, Jul 29
PHX
Sky Harbor Intl.
JAC
Jackson Hole
$311 Roundtrip, found 1 day ago
$311
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jul 14 from Sky Harbor Intl. to Jackson Hole, returning Wed, Jul 29, priced at $311 found 1 day ago
Mon, Mar 22 - Fri, Mar 26
LAX
Los Angeles Intl.
JAC
Jackson Hole
$319 Roundtrip, found 3 days ago
$319
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Mar 22 from Los Angeles Intl. to Jackson Hole, returning Fri, Mar 26, priced at $319 found 3 days ago
Tue, Jun 2 - Tue, Jun 9
PHX
Sky Harbor Intl.
IDA
Idaho Falls Regional
$347 Roundtrip, found 23 hours ago
$347
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Tue, Jun 2 from Sky Harbor Intl. to Idaho Falls Regional, returning Tue, Jun 9, priced at $347 found 23 hours ago

Southern Idaho Flight Information

Traveling To
Southern Idaho
Destination Airport IATA Code
IDA
Number of Airlines Serving
Airlines
Southwest Airlines, Frontier Airlines, Delta, Alaska Airlines, American Airlines
Flight Price
$177
Earliest Departing Flight
Latest Departing Flight

Book Your Flight & Hotel Together & Save

Southern Idaho economy flight packages

Price found within the past 48 hours. Click for updated prices.
The Avery Hotel
3.5-star property

The Avery Hotel

Jun 15 - Jun 17

2 night stay

Seattle (SEA) to Boise (BOI)

Alaska Airlines • Coach

Boise (BOI) to Seattle (SEA)

Southwest Airlines • Coach
Price was $613, price is now $450 per person
$450
per person
found 19 hours ago
Lake View Suites
3.0-star property

Lake View Suites

Jul 8 - Jul 12

4 night stay

Dallas (DFW) to Jackson Hole (JAC)

American Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,633, price is now $1,215 per person
$1,215
per person
found 1 day ago
Hotel 43
4.0-star property

Hotel 43

Jun 18 - Jun 23

5 night stay

Seattle (SEA) to Boise (BOI)

Southwest Airlines • Non-stop roundtrip • Coach
Price was $989, price is now $739 per person
$739
per person
found 1 day ago
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Southern 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! (1,005 reviews)

Jun 13 - Jun 15

2 night stay

Seattle (SEA) to Boise (BOI)

Alaska Airlines • Roundtrip • FirstClass
Price was $628, price is now $561 per person
$561
per person
found 20 hours ago
Front desk staff and maids very good, breakfast was expensive, nothing free ( not even coffee refills).

Reviewed on Dec 30, 2025

Boise Guest House
2.0-star property

Boise Guest House

9.6/10 Exceptional! (197 reviews)

Jun 13 - Jun 15

2 night stay

Seattle (SEA) to Boise (BOI)

Alaska Airlines • Roundtrip • FirstClass
Price was $674, price is now $587 per person
$587
per person
found 20 hours ago
An absolute adorable gem of a place! Thank you so so much for a very pleasant experience.

Reviewed on Oct 2, 2024

Modern Hotel
3.0-star property

Modern Hotel

9.6/10 Exceptional! (1,003 reviews)

Jun 13 - Jun 15

2 night stay

Seattle (SEA) to Boise (BOI)

Alaska Airlines • Roundtrip • FirstClass
Price was $712, price is now $640 per person
$640
per person
found 20 hours ago
Room was tidy and clean. Front desk person was great. Great location.

Reviewed on Jan 18, 2026

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See all available trips from Seattle to Southern Idaho
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Southern Idaho

Orbitz provides convenient, one-stop shopping for travelers looking for budget flights to Southern Idaho or any other low fare domestic or international air travel.

Innovative Orbitz Tools for the Trip Planner on the Move

Now it is even faster to find exclusive deals and book cheap Southern Idaho flights from any location with our new Orbitz apps. These cutting-edge mobile tools are available free to anyone with an Android device, iPad, or iPhone. Look up Southern Idaho's most popular attractions, best restaurants, and entertainment venues or check on your flights to Southern Idaho and make changes to your itinerary while waiting in line for your latte.

Stay on Budget, Earn Miles with Bargain Southern Idaho Flights

You can find amazing discount fares with Orbitz’s guaranteed low prices or take advantage of last-minute sales and special travel packages. You can also earn points towards your airline frequent flyer programs when you book qualified flights to Southern Idaho. That means you can rack up money-saving points and miles for future use while saving money now.

We Are Just a Phone Call Away If You Need Us

Booking, changing, or canceling your Southern Idaho flights is a breeze with Orbitz’s online and mobile tools, but that doesn't mean that we leave you hanging if you want to speak with one of our representatives. If you need help, just contact our Customer Service by email or phone. To enjoy a less stressful trip, be sure to sign up for instant alerts so we can send you any updates or delays relating to your flights to Southern Idaho to your mobile phone or email.

Frequently asked questions

Which airlines fly to Southern Idaho?
You're spoiled for choice with 20 leading airlines that fly to Boise Airport (BOI). Compare airfares and score yourself a cheap flight to Southern Idaho with any one of these top domestic carriers:

  • Alaska Airlines - 312 flights to Southern Idaho per month
  • Delta - 241 flights to Southern Idaho per month
  • United Airlines - 207 flights to Southern Idaho per month

What is the best airport to fly to in Southern Idaho?
Boise Airport (BOI) is the main gateway for this unique destination. Once you've stepped out of the terminal, the possibilities are endless when it comes to discovering Southern Idaho.
How much is a flight to Southern Idaho?
If you're searching for round-trip flights, airfares ranged between $177 and $347 this last week. The cheapest one-way price was $99, departing from Seattle (SEA).
How to book the cheapest flight to Southern Idaho?
With some of the biggest and best flight deals around, you'll always bag a bargain with Orbitz. The following tips and hints will help you find cheap flights to Southern Idaho — and leave you with more cash to splash:

  • Taking off from or arriving at other airports can be more affordable. Enter your preferred departure and arrival airports. Next, select the 'Nearby airports' function below to compare your options.
  • Also, click on the 'Show flexible dates' link to compare the fares on days either side of your selected departure. It's possible to pick up cheaper flight deals if your travel plans are flexible.
  • To filter your results, click on 'Show options.' You can search based on seating class, airlines, and nonstop and refundable flights. You can also select your preferred departure and arrival times under 'Sort & Filter' to the left.
  • Book as soon as you've sorted your travel dates. While you can get lucky now and then, flights rarely get cheaper as your date of departure nears.
  • Make greater savings on your vacation by combining your flights, hotels and car rentals into an Orbitz package deal. Your budget will thank you for it.
  • Don't travel during peak seasons if possible. By steering clear of school vacations and summer, you can save big on your airfares.

How long is a flight to Southern Idaho?
You could have time to read a couple of chapters of a novel, or you might polish off the entire thing! Flight durations depend on where you're coming from, but these popular routes to Southern Idaho will give you some idea:

  • Seattle, WA (SEA-Seattle - Tacoma Intl.) to Boise Airport (BOI) - 1 hour and 27 minutes
  • San Francisco, CA (SFO-San Francisco Intl.) to Boise Airport (BOI) - 1 hour and 43 minutes
  • Denver, CO (DEN-Denver Intl.) to Boise Airport (BOI) - 2 hours

What is the best time to book a flight to Southern Idaho?
Generally speaking, the cheapest month to reserve a plane ticket is January. This is closely followed by February and August. When searching for a cheap flight to Southern Idaho, it's always good to be ready to book. Cheap deals appear in an instant and don't wait around!
What day of the week is the cheapest to book a flight to Southern Idaho?
Land a fantastic flight deal by booking on a Tuesday, Wednesday or Saturday. Typically, these are the best days of the week to land cheap tickets to Southern Idaho.
What is the cheapest day of the week to fly to Southern Idaho?
According to Orbitz data from 2020, Monday is normally the best day to get cheap flights to Southern Idaho. Tuesday also has budget-friendly fares while Saturday has the highest ticket rates. Even though leaving at the weekend can be more suitable, you'll have more money in your pocket to play with if you take off at the start of the week.
What is the cheapest month to fly to Southern Idaho?
We won't keep you guessing — based on Orbitz data, August is generally the cheapest month to fly. Ideal for those who crave a weekend getaway or just a break from it all before the weather turns. The costliest time to fly is in the middle of summer, with ticket prices peaking in June.
Which airlines allow free cancellation?
If you're worried your travel plans could change, Orbitz will help you lock in a flexible ticket. All you have to do is click on "Filter by flexible change policies" when searching for your flights. We'll show you airlines that include free cancellation and no change fees — all on top of irresistibly low prices.
What do I need for the flight to Southern Idaho?
From onboard entertainment to travel basics like a pillow, there are several things a regular flyer won't take off without. To make sure you're all set for your trip, check out this handy list:

  • Check that you've packed your travel documents and identification. For overseas journeys, you'll require your passport. When booking your tickets, always use the same details that are stated on your current ID.
  • Pack your carry-on bag with snacks and activities and you'll happily pass the time on this medium-haul flight. Where possible, connect to the airport's Wi-Fi and transfer your favorite podcast or playlist to your phone before take off.
  • Plane cabins are frequently chilly. Even if you're traveling during the peak of the Southern Idaho summer, make sure you take a sweater on board to keep comfortable.

How many direct flights are there to Southern Idaho?
Your next big adventure is just one easy plane ride away, with 189 direct services to Southern Idaho each month. Search for your fare with Orbitz and lock in a fantastic deal with Alaska Airlines, Delta Air Lines or Southwest Airlines. Other well-known airlines that provide nonstop services include United Airlines, American Airlines and Spirit Airlines.
How do I get cheap first-class/business deals to Southern Idaho?
Savvy travelers have a talent for finding first or business-class flights to Southern Idaho without the hefty price tag. You can do the same with these handy tips:

  • Flexibility is important. By being open to various travel dates, you'll have more chances of spotting a sale on your airfares.
  • Look for a low-cost airline that has business-class seats. They usually come with more legroom and a glass of bubbly — but without the premium price.
  • Make a bid for an upgrade. Some carriers hold online auctions that let you offer a price for a seat at the front of the plane. You may also be able to upgrade with points earned through a loyalty scheme.

What is the best time to go to Southern Idaho?
You'll have all the fun you can handle whatever time of year you decide to go to Southern Idaho, but March, May and August are the liveliest months. Want to fill your itinerary with stacks of warm-weather experiences? Plan your getaway around June 20. This is when summer begins in the Northern Hemisphere. Expect the mercury to sit anywhere between 45 ºF and 75 ºF during this time.

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.