$32 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 1/19. 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

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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, Jan 8 - Sat, Jan 10
Delta Logo
10:39 am - 11:35 am
BOI
-
SEA
1h 56mnonstop
Delta Logo
10:25 am - 1:00 pm
SEA
-
BOI
1h 35mnonstop
$99Delta
Fri, Jan 9 - Sat, Jan 10
Delta Logo
11:25 am - 12:46 pm
GEG
-
SEA
1h 21mnonstop
Delta Logo
9:30 am - 10:45 am
SEA
-
GEG
1h 15mnonstop
$99Delta
Mon, Feb 2 - Mon, Feb 9
Hawaiian Airlines Logo
6:00 pm - 7:17 pm
GEG
-
SEA
1h 17mnonstop
Hawaiian Airlines Logo
12:43 pm - 5:13 pm
SEA
-
GEG
4h 30m1 stop
$107Hawaiian Airlines
Sat, Jan 17 - Mon, Jan 19
Alaska Airlines Logo
5:55 pm - 6:33 pm
BOI
-
SEA
1h 38mnonstop
Alaska Airlines Logo
10:20 am - 12:51 pm
SEA
-
BOI
1h 31mnonstop
$108Alaska Airlines
Sat, Feb 14 - Mon, Feb 16
Alaska Airlines Logo
6:28 am - 7:13 am
BOI
-
SEA
1h 45mnonstop
Alaska Airlines Logo
9:35 pm - 11:59 pm
SEA
-
BOI
1h 24mnonstop
$109Alaska Airlines
Fri, Jan 9 - Mon, Jan 12
Frontier Logo
12:07 pm - 2:08 pm
BOI
-
DEN
2h 01mnonstop
Frontier Logo
9:10 am - 11:17 am
DEN
-
BOI
2h 07mnonstop
$114Frontier
Fri, Feb 13 - Sun, Feb 15
Frontier Logo
11:56 am - 1:56 pm
BOI
-
DEN
2h 00mnonstop
Frontier Logo
9:01 am - 11:11 am
DEN
-
BOI
2h 10mnonstop
$118Frontier
Mon, Feb 2 - Mon, Feb 9
Hawaiian Airlines Logo
2:00 pm - 6:33 pm
GEG
-
SEA
4h 33m1 stop
Hawaiian Airlines Logo
3:57 pm - 5:06 pm
SEA
-
GEG
1h 09mnonstop
$120Hawaiian Airlines
Tue, Jan 20 - Fri, Jan 23
Multiple Airlines Logo
5:55 pm - 11:35 pm
BOI
-
DEN
5h 40m1 stop
Multiple Airlines Logo
9:10 am - 11:12 am
DEN
-
BOI
2h 02mnonstop
$121Multiple Airlines
Fri, Jan 30 - Tue, Feb 3
Multiple Airlines Logo
12:07 pm - 2:07 pm
BOI
-
DEN
2h 00mnonstop
Multiple Airlines Logo
7:00 am - 12:51 pm
DEN
-
BOI
5h 51m1 stop
$129Multiple 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 Seattle/Tacoma Intl (8% of total searches). The next most popular destinations are Phoenix (7%) and Las Vegas Harry Reid Intl (6%).

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 Bangkok, San José del Cabo 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 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 Los Angeles at $157, while the most expensive was Spokane, at $299.

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 11m. 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 Las Vegas and cost $54. The next cheapest destinations were Portland at $68 and Phoenix at $78.

Good to know

Low seasonSeptember
Cheapest flight$32
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 21% 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.
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 8021 reviews
7.9Comfort
8.5Crew
7.9Entertainment
7.3Food
8.1Boarding
Airline reviews

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

2.0 MediocreGina, Dec 2025
DTW - ELM
Read more Delta reviews

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

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
Prem Econ Class flights to anywherefrom $198
Economy Class flights to anywherefrom $79