Idaho

$39+ Cheap flights from Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LAS
Jan 25 — Feb 11
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What to know about flights from Idaho

Discover essential information about flights departing from Idaho, including flight schedules, destinations, airlines operating at the Idaho airport, and any specific guidelines or requirements for travelers. Please note that the information is based on the most recent updates available. Data last updated December 26, 2025.

Good round-trip deal

$114 or less

Good one-way deal

$58 or less
Price to beat on a round-trip flight from Idaho.
Price to beat on a one-way flight from Idaho.

Find flights from Idaho

Cheapest flights from Idaho
Explore the most affordable flight options available from Idaho. Find the lowest fares based on data from user searches, with prices last updated on December 26, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/118:58 pmGEG - LAS
Nonstop2h 20mAllegiant Air
Thu 1/225:31 pmLAS - GEG
Nonstop2h 37mAllegiant Air
Deal found 12/25$86
This Booking.com deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/58:58 pmGEG - LAS
Nonstop2h 20mAllegiant Air
Sun 2/85:31 pmLAS - GEG
Nonstop2h 37mAllegiant Air
Deal found 12/25$90
This Booking.com deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/88:58 pmGEG - LAS
Nonstop2h 20mAllegiant Air
Thu 2/196:08 pmLAS - GEG
Nonstop2h 24mAllegiant Air
Deal found 12/25$98
This Delta deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/67:15 pmBOI - SEA
Nonstop1h 58mDelta
Sun 2/87:20 amSEA - BOI
Nonstop1h 37mDelta
Deal found 12/25$99
This Delta deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/176:20 amGEG - SEA
Nonstop1h 33mDelta
Mon 1/199:35 pmSEA - GEG
Nonstop1h 17mDelta
Deal found 12/25$99
This Cheapflightsfares deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/298:58 pmGEG - LAS
Nonstop2h 20mAllegiant Air
Sun 2/15:31 pmLAS - GEG
Nonstop2h 37mAllegiant Air
Deal found 12/24$100
This Cheapflightsfares deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/158:58 pmGEG - LAS
Nonstop2h 20mAllegiant Air
Thu 1/225:31 pmLAS - GEG
Nonstop2h 37mAllegiant Air
Deal found 12/24$104
This Alaska Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/175:55 pmBOI - SEA
Nonstop1h 38mAlaska Airlines
Mon 1/198:30 amSEA - BOI
Nonstop1h 22mAlaska Airlines
Deal found 12/24$119
This Delta deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/139:20 amGEG - SEA
Nonstop1h 23mDelta
Thu 1/157:21 amSEA - GEG
Nonstop1h 19mDelta
Deal found 12/24$119
This Cheapflightsfares deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/118:58 pmGEG - LAS
Nonstop2h 20mAllegiant Air
Sun 1/185:31 pmLAS - GEG
Nonstop2h 37mAllegiant Air
Deal found 12/25$124
This Kiwi.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/18:58 pmGEG - LAS
Nonstop2h 20mMultiple Airlines
Thu 2/197:00 amLAS - GEG
1 stop5h 29mMultiple Airlines
Deal found 12/22$127
This Kiwi.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/88:58 pmGEG - LAS
Nonstop2h 20mAllegiant Air
Thu 1/225:31 pmLAS - GEG
Nonstop2h 37mAllegiant Air
Deal found 12/22$128

Find flights from Idaho within your budget

 
Find flights departing from Idaho that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on December 26, 2025. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

Las Vegas

Route

Depart

Return

Price

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Fri 1/23

5:15 pm-6:08 pm

Nonstop1h 53m

Seattle/Tacoma Intl

Sun 1/25

9:30 pm-11:59 pm

Nonstop1h 29m

$99

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 1/17

6:23 am-7:15 am

Nonstop1h 52m

Seattle/Tacoma Intl

Sun 1/18

8:30 am-10:52 am

Nonstop1h 22m

$99

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Fri 2/6

5:40 am-6:36 am

Nonstop1h 56m

Seattle/Tacoma Intl

Sun 2/8

7:20 am-9:57 am

Nonstop1h 37m

$99

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Wed 1/28

6:05 am-7:38 am

Nonstop1h 33m

Seattle/Tacoma Intl

Mon 2/2

7:21 am-8:40 am

Nonstop1h 19m

$99

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Fri 1/23

1:20 pm-2:38 pm

Nonstop1h 18m

Seattle/Tacoma Intl

Wed 1/28

1:50 pm-3:00 pm

Nonstop1h 10m

$99

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Fri 3/6

7:30 pm-8:51 pm

Nonstop1h 21m

Seattle/Tacoma Intl

Mon 3/9

7:51 pm-9:05 pm

Nonstop1h 14m

$99

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Sat 2/7

6:20 am-7:50 am

Nonstop1h 30m

Seattle/Tacoma Intl

Wed 2/11

7:45 pm-8:58 pm

Nonstop1h 13m

$99

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Sat 1/24

7:20 am-8:55 am

Nonstop1h 35m

Seattle/Tacoma Intl

Sat 1/31

5:35 pm-6:47 pm

Nonstop1h 12m

$99

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

Thu 1/22

6:05 am-7:38 am

Nonstop1h 33m

Seattle/Tacoma Intl

Thu 1/29

5:35 pm-6:45 pm

Nonstop1h 10m

$99

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 1/13

5:55 pm-6:33 pm

Nonstop1h 38m

Seattle/Tacoma Intl

Tue 1/13

9:36 pm-11:59 pm

Nonstop1h 23m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 60 results
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Best time to book a flight from Idaho

Have a flexible travel schedule? Discover the best time to fly from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Idaho

Get recent, data-driven insights about flights from Idaho including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Idaho?

Currently, September is the cheapest month in which you can book a flight from Idaho (average of $46). Flying from Idaho in December will prove the most costly (average of $81). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the cheapest time to fly from Idaho?

Use this chart to determine the cheapest time to fly round-trip from Idaho to Las Vegas. Price data was last updated on December 20, 2025.

Those who are seeking the cheapest fare on flights departing from Idaho would be wise to consider leaving during Sunday evenings when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Thursday mornings when fares are usually the most expensive.

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Related info for your journey

Access useful and relevant information related to your journey from Idaho. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated December 26, 2025.
  • What is the cheapest month to fly from Idaho?

    September is currently the cheapest month to fly from Idaho. At this moment in time December is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

  • Where are the cheapest places to fly to from Idaho?

    Check out the cheapest flights from Idaho to embark to:
    Fly from Boise to Seattle from $79 round trip
    Fly from Boise to Las Vegas from $117 round trip
    Fly from Boise to Santa Ana from $118 round trip
    Fly from Boise to Denver from $120 round trip
    Fly from Boise to Portland from $146 round trip

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