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Find cheap flights from Idaho to the United States from $39

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 the United States departing on 5/31. 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
0 bags
Wed 6/19
Wed 6/26

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Good to know

Low season

January

High season

May

Cheapest flight

$39
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Boise to Las Vegas

FAQs for booking flights from Idaho to the United States

  • How does KAYAK find such low prices on flights from Idaho to the United States?

    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 to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United States 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 to the United States?

    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 the United States 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 to the United States?

    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 to the United States from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Idaho to the United States

Recent round-trip flight deals

6/6Thu
nonstopSpirit Airlines
1h 56mBOI-LAS
6/12Wed
nonstopSpirit Airlines
2h 00mLAS-BOI
$61
5/30Thu
nonstopSpirit Airlines
1h 49mBOI-LAS
6/1Sat
nonstopSpirit Airlines
2h 04mLAS-BOI
$62
5/30Thu
nonstopAllegiant Air
1h 44mBOI-LAS
6/2Sun
nonstopAllegiant Air
1h 55mLAS-BOI
$75
6/15Sat
nonstop
1h 56mBOI-LAS
6/16Sun
nonstop
1h 53mLAS-BOI
$84
6/20Thu
nonstop
1h 49mBOI-LAS
6/25Tue
nonstop
1h 58mLAS-BOI
$85
6/16Sun
nonstopAllegiant Air
1h 49mBOI-LAS
6/23Sun
nonstopAllegiant Air
1h 53mLAS-BOI
$106
10/16Wed
nonstopAlaska Airlines
1h 14mGEG-SEA
10/16Wed
nonstopAlaska Airlines
1h 03mSEA-GEG
$131
6/12Wed
nonstopAlaska Airlines
1h 09mGEG-SEA
6/19Wed
nonstopAlaska Airlines
1h 08mSEA-GEG
$137
9/25Wed
nonstopDelta
1h 44mBOI-SEA
10/2Wed
nonstopDelta
1h 29mSEA-BOI
$137
8/29Thu
nonstopDelta
1h 14mGEG-SEA
9/3Tue
nonstopDelta
1h 16mSEA-GEG
$147

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Recent one-way flight deals

5/31Fri
nonstopSpirit Airlines
1h 50mBOI-LAS
$39
7/4Thu
nonstopAllegiant Air
1h 52mBOI-LAS
$42
8/20Tue
nonstopDelta
1h 43mBOI-SEA
$69
8/17Sat
nonstopDelta
1h 14mGEG-SEA
$69
7/27Sat
nonstopSun Country Air
2h 46mBOI-MSP
$78
6/18Tue
nonstopAlaska Airlines
1h 33mBOI-SEA
$79
6/22Sat
nonstopAlaska Airlines
1h 12mGEG-SEA
$79
6/6Thu
nonstopSun Country Air
2h 52mGEG-MSP
$83
7/11Thu
1 stop
5h 27mBOI-LAX
$87
6/9Sun
1 stop
25h 32mBOI-LAX
$93

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Last minute flights from Idaho to the United States

Last minute flight, train and bus deals

5/23Thu
nonstop
1h 44mBOI-LAS
5/29Wed
nonstop
2h 04mLAS-BOI
$113
5/23Thu
nonstop
1h 44mBOI-LAS
6/1Sat
nonstop
2h 05mLAS-BOI
$115
5/23Thu
nonstopAllegiant Air
1h 44mBOI-LAS
5/30Thu
nonstopAllegiant Air
1h 55mLAS-BOI
$117
5/22Wed
nonstopSpirit Airlines
1h 49mBOI-LAS
5/29Wed
nonstopSpirit Airlines
2h 04mLAS-BOI
$125
5/23Thu
nonstopAllegiant Air
1h 44mBOI-LAS
5/30Thu
nonstopAllegiant Air
1h 55mLAS-BOI
$127
5/22Wed
nonstopSpirit Airlines
1h 49mBOI-LAS
5/29Wed
nonstopSpirit Airlines
2h 07mLAS-BOI
$135
5/25Sat
multi-stopDelta
5h 25mBOI-LAS
6/3Mon
multi-stopDelta
5h 42mLAS-BOI
$309
5/21Tue
multi-stopAmerican Airlines
5h 22mBOI-HOU
5/23Thu
multi-stopAmerican Airlines
7h 45mHOU-BOI
$406
5/21Tue
multi-stopAmerican Airlines
9h 10mBOI-HOU
5/23Thu
multi-stopAmerican Airlines
5h 19mHOU-BOI
$411
5/23Thu
nonstopDelta
1h 18mGEG-SEA
5/27Mon
nonstopDelta
1h 09mSEA-GEG
$457

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Flights to the United States

Return flight deals:

United States - Idaho

Cabin classes:

$248
$336
$303
$58

Browse destinations:

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