$37 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 4/26. 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

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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

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
$94Frontier
Mon, Apr 6 - Tue, Apr 7
Delta Logo
7:30 pm - 8:18 pm
BOI
-
SEA
1h 48mnonstop
Delta Logo
10:35 am - 1:05 pm
SEA
-
BOI
1h 30mnonstop
$105Delta
Wed, Apr 8 - Wed, Apr 15
Alaska Airlines Logo
5:00 am - 6:16 am
GEG
-
SEA
1h 16mnonstop
Alaska Airlines Logo
10:53 pm - 11:59 pm
SEA
-
GEG
1h 06mnonstop
$108Alaska Airlines
Fri, Mar 27 - Sat, Mar 28
Alaska Airlines Logo
6:00 am - 7:16 am
GEG
-
SEA
1h 16mnonstop
Alaska Airlines Logo
1:31 pm - 2:39 pm
SEA
-
GEG
1h 08mnonstop
$117Alaska Airlines
Mon, Apr 13 - Mon, Apr 20
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
$123Hawaiian Airlines
Thu, Jun 11 - Sun, Jun 14
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
$126Allegiant Air
Sun, Apr 19 - Wed, Apr 22
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
$131Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Multiple Airlines Logo
2:47 pm - 4:01 pm
GEG
-
SEA
1h 14mnonstop
Multiple Airlines Logo
9:53 am - 2:52 pm
SEA
-
GEG
4h 59m
1 stop
$134Multiple Airlines
Thu, May 7 - Sun, May 10
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
$143Allegiant Air
Sat, Apr 4 - Sun, Apr 5
Hawaiian Airlines Logo
8:07 am - 9:37 am
BOI
-
LAX
2h 30mnonstop
Hawaiian Airlines Logo
7:45 pm - 11:02 pm
LAX
-
BOI
2h 17mnonstop
$158Hawaiian 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 Seattle/Tacoma Intl (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 Vancouver, San José del Cabo and Mexico City.

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 Phoenix at $157, while the most expensive was Los Angeles, at $239.

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$37
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 
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 8242 reviews
7.2Food
7.9Comfort
8.1Boarding
8.5Crew
7.8Entertainment
Airline reviews

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

6.0 GoodAnonymous, Feb 2026
RDU - SEA
Read more Delta reviews

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

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.

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.