$56 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 6/2. 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, Jun 11 - Tue, Jun 16
Frontier Logo
1:25 pm - 3:48 pm
BOI
-
DEN
2h 23mnonstop
Frontier Logo
10:29 am - 12:30 pm
DEN
-
BOI
2h 01mnonstop
$149Frontier
Thu, May 7 - Thu, May 14
Frontier Logo
1:22 pm - 3:38 pm
BOI
-
DEN
2h 16mnonstop
Frontier Logo
10:22 am - 12:27 pm
DEN
-
BOI
2h 05mnonstop
$151Frontier
Wed, May 20 - Tue, May 26
Delta Logo
9:16 pm - 10:05 pm
BOI
-
SEA
1h 49mnonstop
Delta Logo
7:35 pm - 10:13 pm
SEA
-
BOI
1h 38mnonstop
$157Delta
Sat, May 2 - Sun, May 3
Alaska Airlines Logo
6:00 am - 6:40 am
BOI
-
SEA
1h 40mnonstop
Alaska Airlines Logo
9:24 pm - 11:59 pm
SEA
-
BOI
1h 35mnonstop
$163Alaska Airlines
Wed, May 20 - Fri, May 29
Delta Logo
8:56 am - 9:50 am
BOI
-
SEA
1h 54mnonstop
Delta Logo
7:35 pm - 10:13 pm
SEA
-
BOI
1h 38mnonstop
$167Delta
Wed, May 20 - Thu, Jun 4
Alaska Airlines Logo
6:07 pm - 6:52 pm
BOI
-
SEA
1h 45mnonstop
Alaska Airlines Logo
8:26 am - 11:03 am
SEA
-
BOI
1h 37mnonstop
$172Alaska Airlines
Tue, May 19 - Tue, May 26
Multiple Airlines Logo
4:28 pm - 9:37 pm
BOI
-
DEN
5h 09m
1 stop
Multiple Airlines Logo
10:25 am - 12:30 pm
DEN
-
BOI
2h 05mnonstop
$172Multiple Airlines
Thu, May 7 - Tue, May 12
Southwest Logo
2:50 pm - 8:20 pm
GEG
-
LAX
5h 30m
1 stop
Southwest Logo
8:40 am - 1:05 pm
LAX
-
GEG
4h 25m
1 stop
$177Southwest
Sat, May 9 - Sat, May 16
Multiple Airlines Logo
2:22 pm - 3:20 pm
BOI
-
LAS
1h 58mnonstop
Multiple Airlines Logo
8:59 pm - 12:27 pm
LAS
-
BOI
14h 28m
1 stop
$179Multiple Airlines
Sat, May 2 - Tue, May 5
Southwest Logo
2:50 pm - 10:10 pm
BOI
-
SEA
8h 20m
1 stop
Southwest Logo
11:40 am - 11:30 pm
SEA
-
BOI
10h 50m
2 stops
$182Southwest
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 (11% of total searches). The next most popular destinations are Denver Intl (8%) and New York (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, Guadalajara and Rome.

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 Chicago, 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 San Diego at $218, while the most expensive was Spokane, at $383.

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 3h 59m, 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 Las Vegas and cost $55. The next cheapest destinations were Santa Ana at $67 and Denver at $78.

Good to know

Low seasonJanuary
Cheapest flight$56
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 1% increase 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 
Learn how KAYAK collects reviews and tips from users.
AllisonFlew with Alaska Airlines
BOI
-
SEA
Mar 2026
Boise airport is quick to get through security and very easy to navigate, so you don’t need to give yourself as much time as you normally would at larger airports.
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 8406 reviews
7.8Entertainment
7.2Food
8.5Crew
8.1Boarding
7.9Comfort
Airline reviews

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

8.0 ExcellentPaul A, Apr 2026
ATL - MIA
Read more Delta reviews

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

The flight was smooth, the crew was great but the plane was quite old

Everything was great until I lost my water bottle and they can’t seem to locate it. I know I left it on the plane though.

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Okay considering we had weather delays which the Pilot notified us of immediately!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

Flight from Fort Wayne to Atlanta was the smallest in terms of cabin space that I've ever seen. A carry on I've used for 20 years BARELY fit in overhead compartment. I'm 5'10" and felt very cramped. Not the best experience.

I am writing to express my dissatisfaction with the poor service and unprofessional staff we encountered when traveling with an infant. Our flight was delayed, and the gate staff failed to manage the boarding process appropriately. Due to incorrect, unavailable, or missing 'pink tag' stroller and car seat check-in procedures at the gate, we were forced to board last. Furthermore, the gate staff was rude and dismissive, causing significant distress to our infant. To make matters worse, one of our checked items—an infant sleeper/lounger—was returned to us broken. Given the unsafe handling of essential equipment and unprofessional treatment, I expect a prompt resolution regarding compensation for the damaged items.

We departed and landed early which was a nice surprise. The boarding process was slow.

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 $236
Business Class flights to anywherefrom $352
Premium Economy Class flights to anywherefrom $298
Economy Class flights to anywherefrom $90