Cheap flights from the United States to Idaho from $95

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Idaho departing on 5/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from the United States to Idaho

Recent round-trip flight deals from the United States to Idaho

Enter your travel dates to find the best prices.
Alaska Airlines Logo
10:25 am - 1:02 pm
SEA
-
BOI
1h 37mnonstop
Alaska Airlines Logo
4:19 pm - 4:59 pm
BOI
-
SEA
1h 40mnonstop
$164Alaska Airlines
Sat, May 30 - Mon, Jun 1
Delta Logo
9:00 am - 11:34 am
SEA
-
BOI
1h 34mnonstop
Delta Logo
8:42 am - 9:38 am
BOI
-
SEA
1h 56mnonstop
$177Delta
Wed, Jun 3 - Tue, Jun 9
Alaska Airlines Logo
9:29 pm - 11:58 pm
SEA
-
BOI
1h 29mnonstop
Alaska Airlines Logo
8:51 pm - 9:29 pm
BOI
-
SEA
1h 38mnonstop
$183Alaska Airlines
Thu, May 28 - Tue, Jun 2
Alaska Airlines Logo
10:25 am - 1:02 pm
SEA
-
BOI
1h 37mnonstop
Alaska Airlines Logo
4:19 pm - 4:59 pm
BOI
-
SEA
1h 40mnonstop
$187Alaska Airlines
Wed, Jun 3 - Mon, Jun 8
Delta Logo
2:35 pm - 5:07 pm
SEA
-
BOI
1h 32mnonstop
Delta Logo
6:43 am - 7:35 am
BOI
-
SEA
1h 52mnonstop
$197Delta
Thu, Jun 4 - Mon, Jun 8
Southwest Logo
1:20 pm - 10:05 pm
SEA
-
BOI
7h 45m
1 stop
Southwest Logo
5:10 pm - 1:10 am
BOI
-
SEA
9h 00m
1 stop
$202Southwest
Sat, May 30 - Sat, Jun 6
United Airlines Logo
10:29 am - 4:44 pm
SEA
-
BOI
5h 15m
1 stop
United Airlines Logo
7:05 pm - 1:29 am
BOI
-
SEA
7h 24m
1 stop
$207United Airlines
Wed, Jun 3 - Mon, Jun 8
United Airlines Logo
3:30 pm - 9:40 pm
SEA
-
BOI
5h 10m
1 stop
United Airlines Logo
7:05 pm - 1:13 am
BOI
-
SEA
7h 08m
1 stop
$212United Airlines
Sat, May 23 - Tue, May 26
American Airlines Logo
12:31 pm - 3:57 pm
LAX
-
JAC
2h 26mnonstop
American Airlines Logo
12:59 pm - 2:26 pm
JAC
-
LAX
2h 27mnonstop
$306American Airlines
Fri, May 29 - Fri, Jun 5
American Airlines Logo
9:02 am - 12:29 pm
LAX
-
JAC
2h 27mnonstop
American Airlines Logo
4:14 pm - 10:16 pm
JAC
-
LAX
7h 02m
1 stop
$316American Airlines
Fri, May 29 - Fri, Jun 5

Alaska Airlines flights from United States to Idaho

Our best Alaska Airlines deals on United States to Idaho flight tickets
Alaska Airlines
May 30
SEA10:25 amSeattle/Tacoma Intl
1h 37m
BOI1:02 pmBoise Air Term. Gowen Fld
Jun 1
BOI4:19 pmBoise Air Term. Gowen Fld
1h 40m
SEA4:59 pmSeattle/Tacoma Intl
$164
Alaska Airlines
May 28
SEA9:29 pmSeattle/Tacoma Intl
1h 29m
BOI11:58 pmBoise Air Term. Gowen Fld
Jun 2
BOI8:51 pmBoise Air Term. Gowen Fld
1h 38m
SEA9:29 pmSeattle/Tacoma Intl
$183
Alaska Airlines
Jun 3
SEA10:25 amSeattle/Tacoma Intl
1h 37m
BOI1:02 pmBoise Air Term. Gowen Fld
Jun 8
BOI4:19 pmBoise Air Term. Gowen Fld
1h 40m
SEA4:59 pmSeattle/Tacoma Intl
$187

Southwest flights from United States to Idaho

Our best Southwest deals on United States to Idaho flight tickets
Southwest
May 30
SEA1:20 pmSeattle/Tacoma Intl
7h 45m
1 stop
BOI10:05 pmBoise Air Term. Gowen Fld
Jun 6
BOI5:10 pmBoise Air Term. Gowen Fld
9h 00m
1 stop
SEA1:10 amSeattle/Tacoma Intl
$202
Southwest
May 27
SEA11:40 amSeattle/Tacoma Intl
10h 50m
2 stops
BOI11:30 pmBoise Air Term. Gowen Fld
Jun 3
BOI11:35 amBoise Air Term. Gowen Fld
10h 25m
1 stop
SEA9:00 pmSeattle/Tacoma Intl
$258
Southwest
Jun 1
SEA6:15 pmSeattle/Tacoma Intl
5h 45m
1 stop
BOI1:00 amBoise Air Term. Gowen Fld
Jun 5
BOI7:20 pmBoise Air Term. Gowen Fld
5h 30m
1 stop
SEA11:50 pmSeattle/Tacoma Intl
$262

momondo Fare Finder

 
Customize your flight search to find flights from United States to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 4, 2026.
Use the filters below to find and compare flights from the United States to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 5/30

10:25 am-1:02 pm

Nonstop1h 37m

Boise Air Term. Gowen Fld

Mon 6/1

4:19 pm-4:59 pm

Nonstop1h 40m

$164

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 6/3

9:00 am-11:34 am

Nonstop1h 34m

Boise Air Term. Gowen Fld

Tue 6/9

8:42 am-9:38 am

Nonstop1h 56m

$177
Quickest round-trip

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Thu 5/28

9:29 pm-11:58 pm

Nonstop1h 29m

Boise Air Term. Gowen Fld

Tue 6/2

8:51 pm-9:29 pm

Nonstop1h 38m

$183

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 6/3

10:25 am-1:02 pm

Nonstop1h 37m

Boise Air Term. Gowen Fld

Mon 6/8

4:19 pm-4:59 pm

Nonstop1h 40m

$187

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Thu 6/4

2:35 pm-5:07 pm

Nonstop1h 32m

Boise Air Term. Gowen Fld

Mon 6/8

6:43 am-7:35 am

Nonstop1h 52m

$197

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 5/30

1:20 pm-10:05 pm

1 stop7h 45m

Boise Air Term. Gowen Fld

Sat 6/6

5:10 pm-1:10 am

1 stop9h 00m

$202

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 6/3

10:29 am-4:44 pm

1 stop5h 15m

Boise Air Term. Gowen Fld

Mon 6/8

7:05 pm-1:29 am

1 stop7h 24m

$207

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 5/23

3:30 pm-9:40 pm

1 stop5h 10m

Boise Air Term. Gowen Fld

Tue 5/26

7:05 pm-1:13 am

1 stop7h 08m

$212

Los AngelesJackson

LAX - JAC

LAXJAC

Los Angeles

Fri 5/29

12:31 pm-3:57 pm

Nonstop2h 26m

Jackson Hole

Fri 6/5

12:59 pm-2:26 pm

Nonstop2h 27m

$306

Los AngelesJackson

LAX - JAC

LAXJAC

Los Angeles

Fri 5/29

9:02 am-12:29 pm

Nonstop2h 27m

Jackson Hole

Fri 6/5

4:14 pm-10:16 pm

1 stop7h 02m

$316

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Idaho from

How to get the cheapest flight ticket from United States to Idaho

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Idaho?

In general, January is the cheapest month to fly from United States to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $294. If you don’t want to visit Idaho in January, then you should wait until October to fly from United States, when ticket prices are also cheap, with an average price of $328.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Saturday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $259. On the other hand, Sunday is the most expensive day to depart from United States because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $364.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is in the afternoon. momondo users have found flights departing from United States to Idaho in the afternoon for as low as $238. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Idaho, so prices are often more expensive at around $302 per ticket.

What is the cheapest United States to Idaho flight route?

Fly from Las Vegas Harry Reid Intl to Idaho Falls Fanning Field for the best United States - Idaho flight prices

Can stopping save me money on United States to Idaho flights?

No. A direct flight is the cheapest option for a flight between United States to Idaho.

Cheap United States to Idaho flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Idaho

Best Price Found

$53

Fastest flight time

0h 28m

Direct flights

Every day

Airports in Idaho

27 airports
The best one-way flight to Idaho from United States in the past 72 hours is $53. The best round-trip flight deal from United States to Idaho found on momondo in the last 72 hours is $92.
The fastest flight from United States to Idaho takes 0h 28m
Direct flights go from United States to Idaho every day.
There are 27 airports in Idaho. From United States there are direct flights to Spokane (GEG), Boise Air Term. Gowen Fld (BOI), Jackson Hole (JAC).

Frequently asked questions about flying from the United States to Idaho

  • When did momondo last update prices for flights from United States to Idaho?

    Prices for flights from United States to Idaho refresh daily.

  • How many operators does momondo search for flights from United States to Idaho?

  • How old do you have to be to fly from United States to Idaho?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Idaho.

  • What documentation or ID do you need to fly to Idaho?

    The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from United States to Idaho?

Best airlines flying from United States to Idaho

Compare and see reviews for airlines that fly from United States to Idaho with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $34Free CancellationRating
6.3
8,634 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $50Free CancellationRating
7.9
12,329 reviews
Search Alaska Airlines flights
Allegiant AirPriceFrom $59Free CancellationRating
7.3
707 reviews
Search Allegiant Air flights
Hawaiian AirlinesPriceFrom $65Free CancellationRating
7.8
2,837 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $79Free CancellationRating
7.9
8,459 reviews
Search Delta flights
FrontierPriceFrom $119Free CancellationRating
5.6
2,965 reviews
Search Frontier flights
United AirlinesPriceFrom $129Free CancellationRating
7.4
9,683 reviews
Search United Airlines flights
SouthwestPriceFrom $131Free CancellationRating
7.9
4,305 reviews
Search Southwest flights
American AirlinesPriceFrom $186Free CancellationRating
7.1
11,668 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Idaho?

It is quick and easy to find United States to Idaho flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho that suits you.

Can I find flights from United States to Idaho with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Idaho from United States with this policy.

How can momondo help me find flights from United States to Idaho?

Once you have performed a search for United States to Idaho flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from United States to Idaho right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Idaho, momondo offers a useful price alert feature which will track prices for flights to Idaho from United States and alert you when they change.

An easier way to manage your Idaho trip

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1 adult
Wed 6/3
Wed 6/10

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Popular flights according to clicks in the last 7 days on momondo