$39 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 3/19. 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 23% 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, Apr 9 - Sun, Apr 12
Frontier Logo
12:03 pm - 2:06 pm
BOI
-
DEN
2h 03mnonstop
Frontier Logo
9:10 am - 11:08 am
DEN
-
BOI
1h 58mnonstop
$92Frontier
Thu, May 14 - Sun, May 17
Frontier Logo
11:53 am - 1:56 pm
BOI
-
DEN
2h 03mnonstop
Frontier Logo
9:10 am - 11:08 am
DEN
-
BOI
1h 58mnonstop
$93Frontier
Thu, Jun 4 - Sun, Jun 7
Allegiant Air Logo
8:47 pm - 11:08 pm
GEG
-
LAS
2h 21mnonstop
Allegiant Air Logo
5:36 pm - 7:57 pm
LAS
-
GEG
2h 21mnonstop
$108Allegiant Air
Sun, Apr 12 - Thu, Apr 16
Allegiant Air Logo
9:19 pm - 11:35 pm
GEG
-
LAS
2h 16mnonstop
Allegiant Air Logo
6:03 pm - 8:29 pm
LAS
-
GEG
2h 26mnonstop
$117Allegiant Air
Wed, Apr 8 - Wed, Apr 15
Alaska Airlines Logo
5:00 am - 6:16 am
GEG
-
SEA
1h 16mnonstop
Alaska Airlines Logo
9:59 pm - 11:10 pm
SEA
-
GEG
1h 11mnonstop
$117Alaska Airlines
Wed, Mar 25 - Sun, Mar 29
Alaska Airlines Logo
8:28 pm - 9:03 pm
BOI
-
SEA
1h 35mnonstop
Alaska Airlines Logo
9:29 pm - 11:56 pm
SEA
-
BOI
1h 27mnonstop
$127Alaska Airlines
Wed, Apr 8 - Wed, Apr 15
Hawaiian Airlines Logo
5:00 am - 6:16 am
GEG
-
SEA
1h 16mnonstop
Hawaiian Airlines Logo
5:23 pm - 10:17 pm
SEA
-
GEG
4h 54m
1 stop
$128Hawaiian Airlines
Wed, Apr 8 - Wed, Apr 15
Hawaiian Airlines Logo
1:54 pm - 6:49 pm
GEG
-
SEA
4h 55m
1 stop
Hawaiian Airlines Logo
12:45 pm - 1:53 pm
SEA
-
GEG
1h 08mnonstop
$133Hawaiian Airlines
Mon, May 4 - Thu, May 7
Delta Logo
10:41 am - 11:28 am
BOI
-
SEA
1h 47mnonstop
Delta Logo
5:40 pm - 8:15 pm
SEA
-
BOI
1h 35mnonstop
$137Delta
Mon, Mar 23 - Tue, Mar 24
Delta Logo
5:00 am - 6:23 am
GEG
-
SEA
1h 23mnonstop
Delta Logo
9:33 am - 10:50 am
SEA
-
GEG
1h 17mnonstop
$137Delta
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 Seattle/Tacoma Intl (8% of total searches). The next most popular destinations are Phoenix (8%) and Las Vegas Harry Reid Intl (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 San José del Cabo, San José and Puerto Vallarta.

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 Phoenix, San Diego, 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 Phoenix at $109, while the most expensive was Phoenix, at $206.

What is the longest direct flight from Idaho?

The longest direct flight you can take from Idaho is to Anchorage, with a duration of 4h 35m. The next longest is Atlanta at 4h 09m, followed by a flight to Chicago at 3h 47m.

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 Phoenix and cost $41. The next cheapest destinations were Santa Ana at $56 and Las Vegas at $58.

Good to know

Low seasonJanuary
Cheapest flight$39
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 1% lower on average.
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 Alaska Airlines
BOI
-
SAN
Jan 2026
Since I flew First Class I really have no advice! Everything was perfect! The ticketing agents were fantastic, flew through TSA Precheck, great announcements at the gate, quick boarding. My only suggestion is to check First Class prices before committing to the very expensive baggage fees and choosing a seat fee!!!
Verified travelerFlew with Alaska Airlines
BOI
-
SFO
Feb 2026
Dont wear all your clothes its not worth the discomfort to save on a checked bag.
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 8241 reviews
8.1Boarding
7.8Entertainment
7.2Food
7.9Comfort
8.5Crew
Airline reviews

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

4.0 OkayJahmes, Feb 2026
LAX - MCO
Read more Delta reviews

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Very Very late. Subsequent flights left an hour before ours

This is my worse experience with Delta. My colleagues and I were traveling to ICT for work. Usually we connect in Dallas, but this year we decided to book with Delta and connect in Atlanta. We were excited to fly with Delta because we hear great things and Delta is one of my top choices when choosing an airline for travel. On the connecting flights to and from Wichita/Atlanta - it felt hot and uncomfortable on the plane. The plane to ICT was smaller and older and did not have any wi-fi or entertainment. The most terrible experience was at boarding in Atlanta both times traveling to Wichita and then back to Tampa. First on our flight from ATL to ICT - the attendant scanning our boarding pass made us go back to the line when we went up to scan our passes to wait. After a few minutes, she allowed us to come back up to scan but then she asked what boarding zone we were. We told her zone 5, and since we were standing on the wrong side of the small rope partition, she made us go back to stand on the right side. There was another gentleman that came up to board and scan his pass, and she mentioned he was also on the wrong side but she let him go through. Our group had to walk back and forth for no reason, causing an unnecessary delay to board the plane. We have never experienced anything like this, especially when the boarding area was completely empty and everyone already boarded since boarding was earlier than the original boarding time. On our flight from ATL to TPA, the attendants scanning our boarding passes had us scan our passes twice, not explaining to us what was going on. They automatically started tagging our carry on bags and did not explain to us or tell us what was going on and why this was happening. Obviously we knew our bags were being forced to check in but with no reason. There was no announcement or mention and I have never had anyone force me to check in my bag before boarding the plane. We assumed the overhead bins were full but when we boarded the plane, there was a lot of empty bins and a lot of spaces to put our bags. We all were disappointed and frustrated with Delta and will be hesitant to fly Delta again or anytime soon.

Boarding and crew were fantastic, but I paid for a window seat with no window. Seat 11D on a CRJ-900 apparently does not have a window. Lesson learned.

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.