$28 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 2/13. 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, Feb 12 - Sun, Feb 15
Frontier Logo
12:36 pm - 2:36 pm
BOI
-
DEN
2h 00mnonstop
Frontier Logo
9:01 am - 11:11 am
DEN
-
BOI
2h 10mnonstop
$66Frontier
Thu, Feb 26 - Fri, Feb 27
Frontier Logo
12:38 pm - 2:38 pm
BOI
-
DEN
2h 00mnonstop
Frontier Logo
9:01 am - 11:11 am
DEN
-
BOI
2h 10mnonstop
$82Frontier
Sun, Apr 19 - Thu, Apr 23
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
$98Allegiant Air
Sun, Mar 15 - Thu, Mar 19
Allegiant Air Logo
9:21 pm - 11:38 pm
GEG
-
LAS
2h 17mnonstop
Allegiant Air Logo
6:07 pm - 8:31 pm
LAS
-
GEG
2h 24mnonstop
$99Allegiant Air
Sun, Mar 1 - Sun, Mar 8
Hawaiian Airlines Logo
8:10 am - 9:34 am
GEG
-
SEA
1h 24mnonstop
Hawaiian Airlines Logo
10:53 pm - 11:59 pm
SEA
-
GEG
1h 06mnonstop
$109Hawaiian Airlines
Sat, Feb 7 - Sun, Feb 8
Hawaiian Airlines Logo
9:02 am - 9:54 am
BOI
-
SEA
1h 52mnonstop
Hawaiian Airlines Logo
8:35 pm - 11:01 pm
SEA
-
BOI
1h 26mnonstop
$110Hawaiian Airlines
Thu, Feb 19 - Mon, Feb 23
Delta Logo
5:50 am - 6:40 am
BOI
-
SEA
1h 50mnonstop
Delta Logo
9:25 pm - 11:45 pm
SEA
-
BOI
1h 20mnonstop
$119Delta
Thu, Feb 12 - Sun, Feb 15
Delta Logo
7:30 pm - 8:50 pm
GEG
-
SEA
1h 20mnonstop
Delta Logo
10:59 pm - 12:04 am
SEA
-
GEG
1h 05mnonstop
$119Delta
Fri, Feb 13 - Tue, Feb 17
Multiple Airlines Logo
11:56 am - 1:56 pm
BOI
-
DEN
2h 00mnonstop
Multiple Airlines Logo
7:40 am - 11:30 pm
DEN
-
BOI
15h 50m
1 stop
$123Multiple Airlines
Sat, Mar 7 - Sun, Mar 8
Multiple Airlines Logo
1:00 pm - 6:56 pm
BOI
-
DEN
5h 56m
1 stop
Multiple Airlines Logo
9:10 am - 11:12 am
DEN
-
BOI
2h 02mnonstop
$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 Phoenix (9% of total searches). The next most popular destinations are Seattle/Tacoma Intl (8%) and Las Vegas Harry Reid Intl (8%).

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, Puerto Vallarta 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 Phoenix, 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 Phoenix at $77, while the most expensive was Los Angeles, at $385.

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 07m, followed by a flight to Chicago at 3h 34m.

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 $51. The next cheapest destinations were Portland at $55 and San Jose at $68.

Good to know

Low seasonJanuary
Cheapest flight$28
Best time to beat the crowds with an average 8% drop 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 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 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 8077 reviews
8.5Crew
7.8Entertainment
8.1Boarding
7.9Comfort
7.2Food
Airline reviews

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

10.0 ExcellentJay, Jan 2026
ATL - BDL
Read more Delta reviews

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

Easiest airport experience ever in my life at MSP with Delta check-in and flight attendant gave us a bottle of champagne in celebration of our 10-year wedding anniversary, so overall amazing!

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

Inexperienced boarding crew allowed too many bags on to a full flight and delayed takeoff causing a missed connection and unplanned overnight stay. There was a hotel at the airport but Delta would not pay for it offering only to shuttle me to an area hotel. Never even offerred so much as an apology by anyone working for Delta.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another 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 $257
Business Class flights to anywherefrom $152
Prem Econ Class flights to anywherefrom $198
Economy Class flights to anywherefrom $51