$48 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 5/17. 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

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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

Sun, Apr 26 - Thu, Apr 30
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
$106Allegiant Air
Sun, Mar 22 - Thu, Mar 26
Allegiant Air Logo
9:21 pm - 11:38 pm
GEG
-
LAS
2h 17mnonstop
Allegiant Air Logo
6:07 pm - 8:31 pm
LAS
-
GEG
2h 24mnonstop
$109Allegiant Air
Sat, Mar 7 - Sun, Mar 8
Hawaiian Airlines Logo
5:40 am - 8:18 am
BOI
-
SEA
3h 38m
1 stop
Hawaiian Airlines Logo
7:10 am - 9:40 am
SEA
-
BOI
1h 30mnonstop
$113Hawaiian Airlines
Sun, Mar 22 - Sat, Mar 28
Alaska Airlines Logo
6:00 am - 6:43 am
BOI
-
SEA
1h 43mnonstop
Alaska Airlines Logo
9:29 pm - 11:56 pm
SEA
-
BOI
1h 27mnonstop
$117Alaska Airlines
Mon, Mar 23 - 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
Sun, Apr 26 - Wed, Apr 29
Multiple Airlines Logo
9:19 pm - 11:35 pm
GEG
-
LAS
2h 16mnonstop
Multiple Airlines Logo
7:00 am - 11:46 am
LAS
-
GEG
4h 46m
1 stop
$128Multiple Airlines
Sat, May 16 - Thu, May 21
Multiple Airlines Logo
3:10 pm - 10:48 pm
GEG
-
LAS
7h 38m
1 stop
Multiple Airlines Logo
5:31 pm - 7:55 pm
LAS
-
GEG
2h 24mnonstop
$133Multiple Airlines
Mon, May 4 - Fri, May 8
Delta Logo
10:41 am - 11:28 am
BOI
-
SEA
1h 47mnonstop
Delta Logo
9:20 pm - 11:55 pm
SEA
-
BOI
1h 35mnonstop
$137Delta
Fri, Apr 3 - Sun, Apr 5
Delta Logo
10:25 am - 3:49 pm
BOI
-
LAS
6h 24m
1 stop
Delta Logo
6:00 am - 1:05 pm
LAS
-
BOI
6h 05m
1 stop
$157Delta
Sat, Mar 28 - Mon, Mar 30
Hawaiian Airlines Logo
6:04 pm - 10:46 pm
BOI
-
LAS
5h 42m
1 stop
Hawaiian Airlines Logo
7:59 pm - 10:52 pm
LAS
-
BOI
1h 53mnonstop
$167Hawaiian Airlines
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 (8% of total searches). The next most popular destinations are Las Vegas Harry Reid Intl (8%) and Seattle/Tacoma 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, Rome 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 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 San Jose at $46 and Las Vegas at $51.

Good to know

Low seasonJanuary
Cheapest flight$48
Best time to beat the crowds with an average 11% drop in price.
Flight from Spokane to Las Vegas

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

Insights shared by verified travelers who flew from Idaho to anywhere 
Learn how KAYAK collects reviews and tips from users.
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 8205 reviews
7.8Entertainment
8.1Boarding
7.9Comfort
8.5Crew
7.2Food
Airline reviews

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

2.0 MediocreDimitrios, Feb 2026
JFK - DFW
Read more Delta reviews

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was delayed. No information on why it was delayed. After we boarded the flight, , the crew made announcement that the captain hs not arrived and he will take 15 mins more to arrive. Passengers were just sitting patiently for the captain to arrive and start, Terrible experience.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

This was my first time flying Delta ever and I had a great experience!

Smallest leg room I've ever had on a plane.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

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.
First Class flights to anywherefrom $257
Business Class flights to anywherefrom $152
Premium Economy Class flights to anywherefrom $179
Economy Class flights to anywherefrom $51