$20 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 12/23. 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

Sat, Jan 17 - Thu, Jan 22
Delta Logo
6:05 am - 7:38 amGEG-SEA
1h 33mnonstop
Delta Logo
7:21 am - 8:40 amSEA-GEG
1h 19mnonstop
$99Delta
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Thu, Nov 27 - Thu, Nov 27
Alaska Airlines Logo
10:29 am - 11:49 amGEG-SEA
1h 20mnonstop
Alaska Airlines Logo
3:45 pm - 4:53 pmSEA-GEG
1h 08mnonstop
$102Alaska Airlines
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Fri, Dec 5 - Mon, Dec 8
Alaska Airlines Logo
7:47 pm - 9:15 pmGEG-SEA
1h 28mnonstop
Alaska Airlines Logo
11:29 am - 12:39 pmSEA-GEG
1h 10mnonstop
$108Alaska Airlines
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Mon, Dec 29 - Thu, Jan 1
Delta Logo
6:08 pm - 6:59 pmBOI-SEA
1h 51mnonstop
Delta Logo
12:15 pm - 2:49 pmSEA-BOI
1h 34mnonstop
$118Delta
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Thu, Dec 4 - Thu, Dec 11
Frontier Logo
12:44 pm - 11:53 amBOI-SEA
24h 09m1 stop
Frontier Logo
12:48 pm - 11:49 amSEA-BOI
22h 01m1 stop
$119Frontier
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Thu, Dec 4 - Thu, Dec 11
Frontier Logo
12:44 pm - 11:53 amBOI-SEA
24h 09m1 stop
Frontier Logo
12:48 pm - 11:49 amSEA-BOI
22h 01m1 stop
$121Frontier
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Thu, Nov 27 - Mon, Dec 1
Hawaiian Airlines Logo
2:47 pm - 3:58 pmGEG-SEA
1h 11mnonstop
Hawaiian Airlines Logo
11:20 pm - 8:37 amSEA-GEG
9h 17m1 stop
$130Hawaiian Airlines
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Mon, Dec 8 - Thu, Dec 11
Southwest Logo
5:50 pm - 6:40 pmBOI-LAS
1h 50mnonstop
Southwest Logo
8:35 am - 11:25 amLAS-BOI
1h 50mnonstop
$137Southwest
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Thu, Dec 4 - Thu, Dec 11
Southwest Logo
2:30 pm - 7:45 pmBOI-SEA
6h 15m1 stop
Southwest Logo
5:15 am - 2:05 pmSEA-BOI
7h 50m1 stop
$151Southwest
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Sun, Mar 1 - Wed, Mar 4
Hawaiian Airlines Logo
6:00 am - 9:13 amBOI-LAS
4h 13m1 stop
Hawaiian Airlines Logo
7:55 pm - 10:45 pmLAS-BOI
1h 50mnonstop
$157Hawaiian Airlines
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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 (9% of total searches). The next most popular destinations are Phoenix (8%) and Dallas (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, Bangkok 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 Chicago, San Diego, Phoenix, Los Angeles and Portland. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Los Angeles at $178, while the most expensive was Chicago, at $295.

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 08m. 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 Portland and cost $56. The next cheapest destinations were Las Vegas at $57 and San Diego at $68.

Good to know

Low seasonSeptember
Cheapest flight$20
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Spokane to Phoenix Sky Harbor Airport

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 Hawaiian AirlinesIDA-SEAJun 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 AirlinesBOI-BURJul 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 8001 reviews
7.9Comfort
7.9Entertainment
8.2Boarding
8.5Crew
7.3Food
Airline reviews

I truly love flying with Delta. They have always treated me with the upmost respect

10.0 ExcellentMAYRA, Nov 2025JFK - MIA
Read more Delta reviews

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

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 $254
Business Class flights to anywherefrom $169
Prem Econ Class flights to anywherefrom $189
Economy Class flights to anywherefrom $78