$66 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 6/30. 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, Aug 27 - Sun, Aug 30
Frontier Logo
1:04 pm - 3:09 pm
BOI
-
DEN
2h 05mnonstop
Frontier Logo
10:08 am - 12:09 pm
DEN
-
BOI
2h 01mnonstop
$169Frontier
Thu, Jul 2 - Tue, Jul 7
Frontier Logo
1:25 pm - 3:48 pm
BOI
-
DEN
2h 23mnonstop
Frontier Logo
10:29 am - 12:29 pm
DEN
-
BOI
2h 00mnonstop
$170Frontier
Sat, Jun 6 - Tue, Jun 9
Delta Logo
6:00 pm - 6:40 pm
BOI
-
SEA
1h 40mnonstop
Delta Logo
12:30 pm - 3:12 pm
SEA
-
BOI
1h 42mnonstop
$177Delta
Sat, Jun 6 - Mon, Jun 8
Delta Logo
5:45 am - 6:27 am
BOI
-
SEA
1h 42mnonstop
Delta Logo
9:20 pm - 11:55 pm
SEA
-
BOI
1h 35mnonstop
$187Delta
Tue, Jul 28 - Tue, Aug 11
Multiple Airlines Logo
1:25 pm - 3:31 pm
BOI
-
DEN
2h 06mnonstop
Multiple Airlines Logo
6:02 am - 12:26 pm
DEN
-
BOI
6h 24m
1 stop
$189Multiple Airlines
Sat, Jun 6 - Tue, Jun 9
Alaska Airlines Logo
6:00 am - 7:15 am
GEG
-
SEA
1h 15mnonstop
Alaska Airlines Logo
8:05 pm - 9:18 pm
SEA
-
GEG
1h 13mnonstop
$197Alaska Airlines
Fri, Jun 5 - Sat, Jun 6
United Airlines Logo
7:00 am - 8:33 am
BOI
-
LAX
2h 33mnonstop
United Airlines Logo
4:39 pm - 9:40 pm
LAX
-
BOI
4h 01m
1 stop
$197United Airlines
Sat, Jun 6 - Sun, Jun 7
Alaska Airlines Logo
5:00 am - 6:08 am
GEG
-
SEA
1h 08mnonstop
Alaska Airlines Logo
7:15 am - 8:20 am
SEA
-
GEG
1h 05mnonstop
$203Alaska Airlines
Tue, Jun 9 - Wed, Jun 10
United Airlines Logo
7:05 pm - 7:58 pm
BOI
-
SFO
1h 53mnonstop
United Airlines Logo
8:59 pm - 11:55 pm
SFO
-
BOI
1h 56mnonstop
$207United Airlines
Thu, Jun 4 - Mon, Jun 8
Multiple Airlines Logo
2:38 pm - 3:37 pm
BOI
-
LAS
1h 59mnonstop
Multiple Airlines Logo
12:59 am - 12:30 pm
LAS
-
BOI
10h 31m
1 stop
$209Multiple 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 (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 Cancún, San José del Cabo 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, 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 $132, while the most expensive was Phoenix, at $305.

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 4h 03m.

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 $54. The next cheapest destinations were John Wayne (Santa Ana) at $56 and Portland at $60.

Good to know

Low seasonJanuary
Cheapest flight$66
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 2% 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 8455 reviews
8.1Boarding
7.2Food
7.8Entertainment
7.8Comfort
8.5Crew
Airline reviews

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

10.0 ExcellentBenjamin, May 2026
CLT - MSP
Read more Delta reviews

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the 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 $236
Business Class flights to anywherefrom $387
Premium Economy Class flights to anywherefrom $269
Economy Class flights to anywherefrom $88