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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 5/30. 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
0 bags
Fri 6/14
Fri 6/21

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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

6/15Sat
nonstopSpirit Airlines
1h 55mBOI-LAS
6/15Sat
nonstopSpirit Airlines
1h 58mLAS-BOI
$62
6/6Thu
nonstopSpirit Airlines
1h 56mBOI-LAS
6/8Sat
nonstopSpirit Airlines
1h 56mLAS-BOI
$65
6/9Sun
nonstop
1h 49mBOI-LAS
6/12Wed
nonstop
2h 00mLAS-BOI
$71
5/30Thu
nonstopAllegiant Air
1h 44mBOI-LAS
6/2Sun
nonstopAllegiant Air
1h 55mLAS-BOI
$75
6/19Wed
nonstop
1h 56mBOI-LAS
6/20Thu
nonstop
1h 53mLAS-BOI
$76
7/4Thu
nonstopAllegiant Air
1h 52mBOI-LAS
7/7Sun
nonstopAllegiant Air
1h 53mLAS-BOI
$116
6/11Tue
nonstopAlaska Airlines
1h 09mGEG-SEA
6/18Tue
nonstopAlaska Airlines
1h 08mSEA-GEG
$137
6/8Sat
nonstopAlaska Airlines
1h 07mGEG-SEA
6/12Wed
nonstopAlaska Airlines
1h 04mSEA-GEG
$147
7/27Sat
nonstopSun Country Air
2h 46mBOI-MSP
7/31Wed
nonstopSun Country Air
3h 07mMSP-BOI
$155
7/31Wed
nonstopSun Country Air
2h 46mBOI-MSP
8/14Wed
nonstopSun Country Air
3h 07mMSP-BOI
$165

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Recent one-way flight deals

5/30Thu
nonstopSpirit Airlines
1h 49mBOI-LAS
$39
6/12Wed
1 stopSpirit Airlines
5h 06mBOI-SEA
$41
6/30Sun
nonstopAllegiant Air
1h 49mBOI-LAS
$60
6/18Tue
nonstopAlaska Airlines
1h 11mGEG-SEA
$69
7/27Sat
nonstopSun Country Air
2h 46mBOI-MSP
$78
6/12Wed
nonstopAlaska Airlines
1h 31mBOI-SEA
$79
6/20Thu
1 stop
5h 36mBOI-LAX
$79
7/11Thu
1 stop
5h 27mBOI-LAX
$82
6/20Thu
1 stopSun Country Air
24h 06mGEG-DEN
$133
5/23Thu
2 stopsAllegiant Air
19h 51mBOI-PHX
$246

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Last minute flights from Idaho to the United States

Last minute flight, train and bus deals

5/19Sun
nonstopSpirit Airlines
1h 49mBOI-LAS
5/22Wed
nonstopSpirit Airlines
2h 07mLAS-BOI
$119
5/20Mon
nonstopSpirit Airlines
1h 50mBOI-LAS
5/22Wed
nonstopSpirit Airlines
2h 07mLAS-BOI
$132
5/17Fri
nonstop
1h 50mBOI-LAS
5/19Sun
nonstop
1h 55mLAS-BOI
$185
5/16Thu
nonstop
1h 44mBOI-LAS
5/21Tue
nonstop
2h 04mLAS-BOI
$187
5/18Sat
nonstopAlaska Airlines
2h 05mBOI-PHX
5/21Tue
multi-stopAlaska Airlines
6h 07mPHX-BOI
$248
5/18Sat
multi-stopAlaska Airlines
6h 37mBOI-PHX
5/21Tue
multi-stopAlaska Airlines
7h 07mPHX-BOI
$258
5/20Mon
multi-stopDelta
7h 01mGEG-PHX
5/22Wed
multi-stopDelta
6h 15mPHX-GEG
$312
5/18Sat
nonstopAmerican Airlines
2h 36mGEG-PHX
5/21Tue
nonstopAmerican Airlines
2h 43mPHX-GEG
$350
5/18Sat
multi-stopDelta
5h 13mGEG-PHX
5/21Tue
multi-stopDelta
6h 15mPHX-GEG
$359
5/18Sat
nonstopAmerican Airlines
2h 36mGEG-PHX
5/28Tue
nonstopAmerican Airlines
2h 43mPHX-GEG
$368

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Flights to the United States

Return flight deals:

United States - Idaho

Cabin classes:

$248
$336
$303
$57

Browse destinations:

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