What airlines fly to United States?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to United States from Idaho according to our data. United Airlines is the first choice among our users, with 34% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 10 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

How many flights depart from Idaho to United States on average per week?

As of February 2026, 1,281 flights take off from Idaho and land in United States each week. The most common flight departure day for this route is Fri, with 16% of weekly flights taking off on this day.

How long is the flight from Idaho to United States?

Flight times vary depending on what airport in Idaho you fly out of and what airport in United States you fly into. For example, flying from Boise to Los Angeles takes 2h 15m on average. On the other hand, flying from Hailey to Los Angeles takes 2h 26m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What is the cheapest airline that flies from Idaho to United States?

Frontier, Allegiant Air, and Alaska Airlines are the most popular carriers operating from Idaho to United States

How many flights depart from Idaho to United States on average per day?

As of February 2026, there are 183 flights per day flying from Idaho to United States. The most common time of day flights depart is 7:00AM, with 58% of flights taking off at noon.

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

Prices for flights from Idaho to United States are refreshed on a daily basis.

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

As of February 2026, there are 10 operators available to choose from for flights from Idaho to United States.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to United States.

What documentation or ID do you need to fly to United States?

The travel and health documents required for your trip to United States 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 United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$47 Cheap Flights from Idaho to the United States in 2026

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Find the cheapest flights from Idaho to the United States

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:15 pm - 11:36 pm

GEG

LAS

2h 21mnonstop

6:07 pm - 8:31 pm

LAS

GEG

2h 24mnonstop

$114Allegiant Air

Sun, Mar 1 - Thu, Mar 19

9:12 pm - 11:33 pm

GEG

LAS

2h 21mnonstop

6:07 pm - 8:31 pm

LAS

GEG

2h 24mnonstop

$122Allegiant Air

Sun, Mar 8 - Thu, Mar 12

6:00 pm - 6:38 pm

BOI

SEA

1h 38mnonstop

9:10 am - 11:40 am

SEA

BOI

1h 30mnonstop

$125Hawaiian Airlines

Tue, Mar 3 - Tue, Mar 10

4:30 pm - 8:23 pm

BOI

SEA

4h 53m

1 stop

9:10 am - 11:40 am

SEA

BOI

1h 30mnonstop

$130Hawaiian Airlines

Tue, Mar 3 - Tue, Mar 10

7:24 am - 1:04 pm

BOI

LAS

6h 40m

1 stop

5:30 pm - 11:56 pm

LAS

BOI

5h 26m

1 stop

$137Delta

Mon, May 4 - Mon, May 18

5:50 am - 6:40 am

BOI

SEA

1h 50mnonstop

7:15 am - 9:50 am

SEA

BOI

1h 35mnonstop

$137Delta

Sat, Feb 28 - Sat, Mar 7

8:30 am - 9:18 am

BOI

SEA

1h 48mnonstop

9:35 pm - 11:59 pm

SEA

BOI

1h 24mnonstop

$147Alaska Airlines

Sat, Mar 7 - Mon, Mar 9

12:38 pm - 12:12 am

BOI

DFW

10h 34m

1 stop

5:45 am - 11:20 am

DFW

BOI

6h 35m

1 stop

$147Frontier

Thu, Mar 5 - Sun, Mar 8

12:38 pm - 7:25 pm

BOI

LAS

7h 47m

1 stop

9:36 am - 11:11 am

LAS

BOI

24h 35m

1 stop

$149Frontier

Thu, Feb 26 - Sat, Feb 28

7:20 am - 8:25 am

BOI

LAS

2h 05mnonstop

7:59 pm - 10:52 pm

LAS

BOI

1h 53mnonstop

$152Alaska Airlines

Sun, Apr 5 - Tue, Apr 7

Frontier flights from Idaho to United States

Our best Frontier deals on Idaho to United States flight tickets

Frontier

Mar 5

BOI12:38 pmBoise Air Term. Gowen Fld

10h 34m

1 stop

DFW12:12 amDallas/Fort Worth

Mar 8

DFW5:45 amDallas/Fort Worth

6h 35m

1 stop

BOI11:20 amBoise Air Term. Gowen Fld

$147

Frontier

Feb 26

BOI12:38 pmBoise Air Term. Gowen Fld

7h 47m

1 stop

LAS7:25 pmLas Vegas Harry Reid Intl

Feb 28

LAS9:36 amLas Vegas Harry Reid Intl

24h 35m

1 stop

BOI11:11 amBoise Air Term. Gowen Fld

$149

Frontier

Feb 19

GEG12:22 pmSpokane

18h 20m

1 stop

PHX7:42 amPhoenix Sky Harbor Intl

Feb 26

PHX6:00 amPhoenix Sky Harbor Intl

6h 27m

1 stop

GEG11:27 amSpokane

$164

United Airlines flights from Idaho to United States

Our best United Airlines deals on Idaho to United States flight tickets

United Airlines

Mar 7

BOI7:07 amBoise Air Term. Gowen Fld

2h 23m

LAX8:30 amLos Angeles

Mar 13

LAX6:45 pmLos Angeles

2h 14m

BOI9:59 pmBoise Air Term. Gowen Fld

$167

United Airlines

Mar 7

BOI7:07 amBoise Air Term. Gowen Fld

2h 23m

LAX8:30 amLos Angeles

Mar 13

LAX6:36 pmLos Angeles

4h 21m

1 stop

BOI11:57 pmBoise Air Term. Gowen Fld

$177

United Airlines

Mar 7

BOI6:55 pmBoise Air Term. Gowen Fld

6h 04m

1 stop

LAX11:59 pmLos Angeles

Mar 13

LAX5:27 pmLos Angeles

5h 30m

1 stop

BOI11:57 pmBoise Air Term. Gowen Fld

$187

Fly from

Fly to

Route

Depart

Return

Price

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Sun 3/1

9:15 pm-11:36 pm

Nonstop2h 21m

Las Vegas Harry Reid Intl

Thu 3/19

6:07 pm-8:31 pm

Nonstop2h 24m

$114

SpokaneLas Vegas

GEG - LAS

GEGLAS

Spokane

Sun 3/8

9:12 pm-11:33 pm

Nonstop2h 21m

Las Vegas Harry Reid Intl

Thu 3/12

6:07 pm-8:31 pm

Nonstop2h 24m

$122

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 3/3

6:00 pm-6:38 pm

Nonstop1h 38m

Seattle/Tacoma Intl

Tue 3/10

9:10 am-11:40 am

Nonstop1h 30m

$125

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 3/3

4:30 pm-8:23 pm

1 stop4h 53m

Seattle/Tacoma Intl

Tue 3/10

9:10 am-11:40 am

Nonstop1h 30m

$130

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Mon 5/4

7:24 am-1:04 pm

1 stop6h 40m

Las Vegas Harry Reid Intl

Mon 5/18

5:30 pm-11:56 pm

1 stop5h 26m

$137

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 2/28

5:50 am-6:40 am

Nonstop1h 50m

Seattle/Tacoma Intl

Sat 3/7

7:15 am-9:50 am

Nonstop1h 35m

$137

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 3/7

8:30 am-9:18 am

Nonstop1h 48m

Seattle/Tacoma Intl

Mon 3/9

9:35 pm-11:59 pm

Nonstop1h 24m

$147

BoiseDallas

BOI - DFW

BOIDFW

Boise Air Term. Gowen Fld

Thu 3/5

12:38 pm-12:12 am

1 stop10h 34m

Dallas/Fort Worth

Sun 3/8

5:45 am-11:20 am

1 stop6h 35m

$147

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Thu 2/26

12:38 pm-7:25 pm

1 stop7h 47m

Las Vegas Harry Reid Intl

Sat 2/28

9:36 am-11:11 am

1 stop24h 35m

$149

BoiseLas Vegas

BOI - LAS

BOILAS

Boise Air Term. Gowen Fld

Sun 4/5

7:20 am-8:25 am

Nonstop2h 05m

Las Vegas Harry Reid Intl

Tue 4/7

7:59 pm-10:52 pm

Nonstop1h 53m

$152

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

Other information

What is the cheapest month to fly to United States?

In general, October is the cheapest month to fly from Idaho to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $333. If you aren’t able to travel during the month of October, then book flights to United States from Idaho during July instead. Flights to United States in July, while not as cheap as those in October, still average around $349.

What is the cheapest Idaho to United States flight route?

Fly from Boise Air Term. Gowen Fld to Las Vegas Harry Reid Intl for the best Idaho - United States flight prices

What cabin class options are available on Idaho to United States flights?

There are 4 cabin classes available to choose from on Idaho to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

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

Cheap Idaho to United States flight deals and tips

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

Best Price Found	$73
Fastest flight time	0h 56m
Direct flights	Every day
Airports in United States	4,296 airports

The best one-way flight to United States from Idaho in the past 72 hours is $73. The best round-trip flight deal from Idaho to United States found on momondo in the last 72 hours is $98.

The fastest flight from Idaho to United States takes 0h 56m

Direct flights go from Idaho to United States every day.

There are 4,296 airports in United States. From Idaho there are direct flights to Seattle/Tacoma Intl (SEA), Las Vegas Harry Reid Intl (LAS).

Search flight deals

When did momondo last update prices for flights from Idaho to United States?
Prices for flights from Idaho to United States are refreshed on a daily basis.
How many operators does momondo search for flights from Idaho to United States?
As of February 2026, there are 10 operators available to choose from for flights from Idaho to United States.
How old do you have to be to fly from Idaho to United States?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to United States.
What documentation or ID do you need to fly to United States?
The travel and health documents required for your trip to United States 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 United States. 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 Idaho to United States?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Idaho to United States is Embraer 175 (16.10% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (14.54%), Embraer 175 (Enhanced Winglets) (13.55%), and Canadair (Bombardier) Regional Jet 700 (9.08%).

Best airlines flying from Idaho to United States

Compare and see reviews for airlines that fly from Idaho to United States with momondo

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $43	Free Cancellation	Rating 7.2 707 reviews	Search Allegiant Air flights
Spirit Airlines	PriceFrom $45	Free Cancellation	Rating 6.3 8,392 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $54	Free Cancellation	Rating 5.7 3,051 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $68	Free Cancellation	Rating 7.8 2,830 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $78	Free Cancellation	Rating 7.9 8,128 reviews	Search Delta flights
United Airlines	PriceFrom $116	Free Cancellation	Rating 7.4 9,225 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $116	Free Cancellation	Rating 8.0 11,825 reviews	Search Alaska Airlines flights
JetBlue	PriceFrom $126	Free Cancellation	Rating 7.2 2,891 reviews	Search JetBlue flights
Southwest	PriceFrom $137	Free Cancellation	Rating 8.0 4,273 reviews	Search Southwest flights
American Airlines	PriceFrom $166	Free Cancellation	Rating 7.2 11,211 reviews	Search American Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Idaho to United States. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Idaho to United States flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Idaho and United States by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Idaho to United States flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.