$32 Find deals on international flights from Idaho

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho to Worldwide departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for cheap international flights from Idaho

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap International Flights Deals from Idaho

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip international flight deals from Idaho

Thu, Jan 8 - Mon, Jan 12
Hawaiian Airlines Logo
7:30 am - 8:53 am
GEG
-
SEA
1h 23mnonstop
Hawaiian Airlines Logo
9:59 am - 11:12 am
SEA
-
GEG
1h 13mnonstop
$89Hawaiian Airlines
Sat, Jan 31 - Sun, Feb 1
Alaska Airlines Logo
9:05 am - 10:28 am
GEG
-
SEA
1h 23mnonstop
Alaska Airlines Logo
11:15 pm - 12:23 am
SEA
-
GEG
1h 08mnonstop
$98Alaska Airlines
Thu, Jan 8 - Sat, Jan 10
Delta Logo
5:40 am - 6:36 am
BOI
-
SEA
1h 56mnonstop
Delta Logo
5:45 pm - 8:12 pm
SEA
-
BOI
1h 27mnonstop
$99Delta
Thu, Mar 12 - Tue, Mar 17
Delta Logo
1:40 pm - 2:51 pm
GEG
-
SEA
1h 11mnonstop
Delta Logo
10:59 pm - 12:07 am
SEA
-
GEG
1h 08mnonstop
$99Delta
Sun, Feb 22 - Thu, Feb 26
Allegiant Air Logo
9:17 pm - 11:38 pm
GEG
-
LAS
2h 21mnonstop
Allegiant Air Logo
6:06 pm - 8:30 pm
LAS
-
GEG
2h 24mnonstop
$100Allegiant Air
Thu, Jan 29 - Sun, Feb 1
Allegiant Air Logo
8:58 pm - 11:18 pm
GEG
-
LAS
2h 20mnonstop
Allegiant Air Logo
5:31 pm - 8:08 pm
LAS
-
GEG
2h 37mnonstop
$102Allegiant Air
Fri, Jan 23 - Fri, Jan 30
Multiple Airlines Logo
12:07 pm - 2:07 pm
BOI
-
DEN
2h 00mnonstop
Multiple Airlines Logo
7:00 am - 3:10 pm
DEN
-
BOI
8h 10m1 stop
$116Multiple Airlines
Sun, Jan 11 - Thu, Jan 15
Multiple Airlines Logo
12:07 pm - 2:08 pm
BOI
-
DEN
2h 01mnonstop
Multiple Airlines Logo
7:00 am - 3:10 pm
DEN
-
BOI
8h 10m1 stop
$121Multiple Airlines
Thu, Jan 8 - Sun, Feb 1
Frontier Logo
4:14 pm - 8:18 pm
GEG
-
PHX
3h 04mnonstop
Frontier Logo
4:17 pm - 6:12 pm
PHX
-
GEG
2h 55mnonstop
$133Frontier
Thu, Jan 1 - Thu, Jan 8
Frontier Logo
4:48 pm - 8:52 pm
GEG
-
PHX
3h 04mnonstop
Frontier Logo
1:28 pm - 3:19 pm
PHX
-
GEG
2h 51mnonstop
$136Frontier
Booking Insights

KAYAK's insights & trends for flights from Idaho

Get data-powered insights and trends into flights from Idaho to help you find the cheapest flights, the best time to fly and much more.

Which are the most popular places to fly to from Idaho?

The domestic destinations KAYAK users have most searched for when searching for flights from Idaho.

Based on KAYAK flight searches, the most popular place to fly from Idaho is Phoenix (9% of total searches). The next most popular destinations are Seattle/Tacoma Intl (9%) and Los Angeles (7%).

What are the most popular international flights out of Idaho?

The international destinations KAYAK users have most searched for when searching for flights from Idaho.

There are many international destinations you can fly to from Idaho. The most popular international destinations among KAYAK users are London, Bangkok and San José del Cabo.

Which cities can I fly to direct from Idaho?

There are loads of places you can fly direct to from Idaho. The most popular destinations for direct flights among KAYAK users are San Diego, Phoenix, Los Angeles, Portland and Los Angeles. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Los Angeles at $177, while the most expensive was Spokane, at $299.

What is the longest direct flight from Idaho?

The longest direct flight you can take from Idaho is to Atlanta, with a duration of 4h 11m. The next longest is Chicago at 3h 37m, followed by a flight to Dallas/Fort Worth Airport at 3h 08m.

What are the cheapest places to fly to from Idaho?

The cheapest destination for a flight from Idaho found on KAYAK in the last two weeks was Las Vegas and cost $54. The next cheapest destinations were Denver at $72 and Phoenix at $78.

Good to know

Low seasonSeptember
Cheapest flight$32
Best time to beat the crowds with an average 12% drop in price.
Flight from Boise to Denver

Flights from Idaho: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew from Idaho to anywhere 
Verified travelerFlew with Hawaiian Airlines
IDA
-
SEA
Jun 2025
Idaho Falls is not a large airport, so it was easy to find my way around. Take a meal if you want more than a snack.
LisaFlew with Alaska Airlines
BOI
-
BUR
Jul 2024
If they ask you to check your bag at the gate because the flight is full, you get to board sooner even if you don't check ALL of your bags.

FAQs for booking Idaho to Worldwide flights

  • How does KAYAK find such low prices on flights from Idaho?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to your destination with an airline and back to Idaho with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Idaho to Worldwide

 
Need help choosing which airline to fly with from Idaho to Worldwide? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8009 reviews
7.9Comfort
8.1Boarding
8.5Crew
7.3Food
7.9Entertainment
Airline reviews

The food is terrible. The staff is wonderful. Comfort is good.

10.0 ExcellentRonda, Dec 2025
JAX - JFK
Read more Delta reviews

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

Everything you need to know for your flight from Idaho

Cabin class types available on flights to Idaho

Cabin classes available on flights to Idaho. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.