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Find cheap flights from Idaho to the United States from $47

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 5/19. 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 6/7
Fri 6/14

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Good to know

Low season

January

High season

July

Cheapest flight

$47
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 8% increase in price.
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

6/8Sat
nonstopSpirit Airlines
1h 55mBOI-LAS
6/12Wed
nonstopSpirit Airlines
2h 00mLAS-BOI
$55
6/6Thu
nonstopSpirit Airlines
1h 56mBOI-LAS
6/11Tue
nonstopSpirit Airlines
1h 58mLAS-BOI
$58
6/4Tue
nonstop
1h 49mBOI-LAS
6/13Thu
nonstop
1h 53mLAS-BOI
$71
5/30Thu
nonstopAllegiant Air
1h 44mBOI-LAS
6/2Sun
nonstopAllegiant Air
1h 55mLAS-BOI
$75
5/23Thu
nonstop
1h 44mBOI-LAS
5/25Sat
nonstop
2h 05mLAS-BOI
$76
7/11Thu
nonstopAllegiant Air
1h 52mBOI-LAS
7/14Sun
nonstopAllegiant Air
1h 53mLAS-BOI
$103
5/28Tue
nonstopDelta
1h 19mGEG-SEA
6/4Tue
nonstopDelta
1h 08mSEA-GEG
$137
5/28Tue
nonstopAlaska Airlines
1h 11mGEG-SEA
6/4Tue
1 stopAlaska Airlines
3h 14mSEA-GEG
$156
6/1Sat
nonstopDelta
1h 19mGEG-SEA
6/8Sat
nonstopDelta
1h 15mSEA-GEG
$157
6/4Tue
1 stopAlaska Airlines
4h 29mBOI-SEA
6/11Tue
nonstopAlaska Airlines
1h 25mSEA-BOI
$166

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Recent one-way flight deals

5/19Sun
nonstopAllegiant Air
1h 44mBOI-LAS
$47
5/22Wed
1 stopSpirit Airlines
4h 27mBOI-LAX
$48
6/11Tue
nonstopDelta
1h 17mGEG-SEA
$69
5/23Thu
1 stop
5h 25mBOI-LAX
$69
5/16Thu
1 stop
5h 25mBOI-LAX
$71
6/8Sat
nonstopDelta
1h 18mGEG-SEA
$79
6/12Wed
1 stopAlaska Airlines
3h 31mGEG-SEA
$88
6/5Wed
nonstopAlaska Airlines
1h 31mBOI-SEA
$89
6/12Wed
nonstopUnited Airlines
2h 05mBOI-DEN
$89
7/10Wed
1 stopUnited Airlines
6h 47mBOI-SEA
$93

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Last minute flights from Idaho to the United States

Last minute flight, train and bus deals

5/13Mon
nonstopSpirit Airlines
1h 49mBOI-LAS
5/15Wed
nonstopSpirit Airlines
2h 07mLAS-BOI
$123
5/13Mon
nonstopSpirit Airlines
1h 50mBOI-LAS
5/15Wed
nonstopSpirit Airlines
2h 07mLAS-BOI
$124
5/9Thu
nonstopAllegiant Air
1h 49mBOI-LAS
5/12Sun
nonstopAllegiant Air
1h 50mLAS-BOI
$193
5/13Mon
multi-stop
16h 42mBOI-LAS
5/18Sat
nonstop
2h 04mLAS-BOI
$206
5/9Thu
nonstopAllegiant Air
1h 49mBOI-LAS
5/12Sun
nonstopAllegiant Air
1h 50mLAS-BOI
$217
5/10Fri
nonstop
1h 50mBOI-LAS
5/12Sun
nonstop
1h 50mLAS-BOI
$218
5/11Sat
nonstopAlaska Airlines
2h 10mBOI-PHX
5/18Sat
multi-stopAlaska Airlines
7h 07mPHX-BOI
$248
5/11Sat
multi-stopDelta
7h 41mBOI-PHX
5/18Sat
multi-stopDelta
6h 08mPHX-BOI
$258
5/11Sat
nonstopAlaska Airlines
2h 10mBOI-PHX
5/14Tue
multi-stopAlaska Airlines
6h 39mPHX-BOI
$283
5/13Mon
nonstopDelta
1h 34mBOI-SEA
5/30Thu
nonstopDelta
1h 36mSEA-BOI
$297

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Flights to the United States

Return flight deals:

United States - Idaho

Cabin classes:

$248
$336
$303
$52

Browse destinations:

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