Cheap flights from Idaho Falls to the United States from $55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to the United States departing on 3/6. 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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Find the cheapest flights from Idaho Falls to the United States

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
10:13 pm - 10:59 pm
IDA
-
LAS
1h 46mnonstop
Allegiant Air Logo
12:28 pm - 3:14 pm
LAS
-
IDA
1h 46mnonstop
$106Allegiant Air
Mon, Mar 16 - Fri, Mar 20
Allegiant Air Logo
10:21 pm - 11:02 pm
IDA
-
LAS
1h 41mnonstop
Allegiant Air Logo
12:42 pm - 3:27 pm
LAS
-
IDA
1h 45mnonstop
$113Allegiant Air
Mon, Apr 27 - Fri, May 1
Alaska Airlines Logo
4:59 pm - 6:02 pm
IDA
-
SEA
2h 03mnonstop
Alaska Airlines Logo
8:04 pm - 10:52 pm
SEA
-
IDA
1h 48mnonstop
$157Alaska Airlines
Sat, Apr 18 - Tue, Apr 21
Alaska Airlines Logo
5:20 pm - 6:21 pm
IDA
-
SEA
2h 01mnonstop
Alaska Airlines Logo
8:52 pm - 11:36 pm
SEA
-
IDA
1h 44mnonstop
$177Alaska Airlines
Fri, Mar 13 - Mon, Mar 16
Delta Logo
6:55 pm - 12:01 am
IDA
-
SEA
6h 06m
1 stop
Delta Logo
5:30 am - 12:27 pm
SEA
-
IDA
5h 57m
1 stop
$187Delta
Tue, Mar 10 - Sat, Mar 14
United Airlines Logo
5:20 pm - 7:10 pm
IDA
-
DEN
1h 50mnonstop
United Airlines Logo
8:10 am - 9:55 am
DEN
-
IDA
1h 45mnonstop
$189United Airlines
Wed, Apr 29 - Sat, May 2
Delta Logo
6:58 pm - 11:59 pm
IDA
-
SEA
6h 01m
1 stop
Delta Logo
4:36 pm - 10:40 pm
SEA
-
IDA
5h 04m
1 stop
$197Delta
Mon, Apr 13 - Tue, Apr 14
United Airlines Logo
5:30 pm - 7:22 pm
IDA
-
DEN
1h 52mnonstop
United Airlines Logo
8:10 am - 9:53 am
DEN
-
IDA
1h 43mnonstop
$198United Airlines
Sat, Mar 28 - Sun, Mar 29
American Airlines Logo
6:18 am - 10:31 am
IDA
-
DFW
27h 13m
1 stop
American Airlines Logo
11:31 am - 1:48 pm
DFW
-
IDA
3h 17mnonstop
$351American Airlines
Tue, Mar 3 - Wed, Mar 4
American Airlines Logo
1:43 pm - 7:51 pm
IDA
-
HOU
5h 08m
1 stop
American Airlines Logo
6:01 am - 1:13 pm
HOU
-
IDA
8h 12m
1 stop
$374American Airlines
Sat, Apr 25 - Sat, May 2

Delta flights from Idaho Falls to United States

Our best Delta deals on Idaho Falls to United States flight tickets
Delta
Mar 10
IDA6:55 pmIdaho Falls Fanning Field
6h 06m
1 stop
SEA12:01 amSeattle/Tacoma Intl
Mar 14
SEA5:30 amSeattle/Tacoma Intl
5h 57m
1 stop
IDA12:27 pmIdaho Falls Fanning Field
$187
Delta
May 30
IDA6:00 amIdaho Falls Fanning Field
3h 22m
1 stop
DEN9:22 amDenver Intl
Jun 1
DEN5:40 amDenver Intl
5h 07m
1 stop
IDA10:47 amIdaho Falls Fanning Field
$209
Delta
Mar 16
IDA6:55 pmIdaho Falls Fanning Field
3h 35m
1 stop
DEN10:30 pmDenver Intl
Mar 23
DEN4:00 pmDenver Intl
6h 16m
1 stop
IDA10:16 pmIdaho Falls Fanning Field
$224

Allegiant Air flights from Idaho Falls to United States

Our best Allegiant Air deals on Idaho Falls to United States flight tickets
Allegiant Air
Feb 23
IDA10:31 pmIdaho Falls Fanning Field
1h 48m
LAS11:19 pmLas Vegas Harry Reid Intl
Feb 27
LAS12:45 pmLas Vegas Harry Reid Intl
1h 45m
IDA3:30 pmIdaho Falls Fanning Field
$92
Allegiant Air
Feb 23
IDA10:31 pmIdaho Falls Fanning Field
1h 48m
LAS11:19 pmLas Vegas Harry Reid Intl
Feb 27
LAS12:45 pmLas Vegas Harry Reid Intl
1h 45m
IDA3:30 pmIdaho Falls Fanning Field
$93
Allegiant Air
Mar 16
IDA10:13 pmIdaho Falls Fanning Field
1h 46m
LAS10:59 pmLas Vegas Harry Reid Intl
Mar 20
LAS12:28 pmLas Vegas Harry Reid Intl
1h 46m
IDA3:14 pmIdaho Falls Fanning Field
$106

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls to United States 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 February 17, 2026.
Use the filters below to find and compare flights from Idaho Falls to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Mon 3/16

10:13 pm-10:59 pm

Nonstop1h 46m

Las Vegas Harry Reid Intl

Fri 3/20

12:28 pm-3:14 pm

Nonstop1h 46m

$106

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Mon 4/27

10:21 pm-11:02 pm

Nonstop1h 41m

Las Vegas Harry Reid Intl

Fri 5/1

12:42 pm-3:27 pm

Nonstop1h 45m

$113

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Sat 4/18

4:59 pm-6:02 pm

Nonstop2h 03m

Seattle/Tacoma Intl

Tue 4/21

8:04 pm-10:52 pm

Nonstop1h 48m

$157

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Fri 3/13

5:20 pm-6:21 pm

Nonstop2h 01m

Seattle/Tacoma Intl

Mon 3/16

8:52 pm-11:36 pm

Nonstop1h 44m

$177

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Tue 3/10

6:55 pm-12:01 am

1 stop6h 06m

Seattle/Tacoma Intl

Sat 3/14

5:30 am-12:27 pm

1 stop5h 57m

$187

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Wed 4/29

5:20 pm-7:10 pm

Nonstop1h 50m

Denver Intl

Sat 5/2

8:10 am-9:55 am

Nonstop1h 45m

$189

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Mon 4/13

6:58 pm-11:59 pm

1 stop6h 01m

Seattle/Tacoma Intl

Tue 4/14

4:36 pm-10:40 pm

1 stop5h 04m

$197

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Sat 3/28

5:30 pm-7:22 pm

Nonstop1h 52m

Denver Intl

Sun 3/29

8:10 am-9:53 am

Nonstop1h 43m

$198

Idaho FallsDallas

IDA - DFW

IDADFW

Idaho Falls Fanning Field

Tue 3/3

6:18 am-10:31 am

1 stop27h 13m

Dallas/Fort Worth

Wed 3/4

11:31 am-1:48 pm

Nonstop3h 17m

$351

Idaho FallsHouston

IDA - HOU

IDAHOU

Idaho Falls Fanning Field

Sat 4/25

1:43 pm-7:51 pm

1 stop5h 08m

Houston Hobby

Sat 5/2

6:01 am-1:13 pm

1 stop8h 12m

$374

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Idaho Falls 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

What is the cheapest Idaho Falls Fanning Field to United States flight route?

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

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

There are 4 cabin classes available to choose from on Idaho Falls Fanning Field 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 Falls to United States flights?

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

Cheap Idaho Falls to United States flight deals and tips

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

Best Price Found

$73

Fastest flight time

1h 03m

Direct flights

Every day

Airports in United States

4,296 airports
The best one-way flight to United States from Idaho Falls in the past 72 hours is $73. The best round-trip flight deal from Idaho Falls to United States found on momondo in the last 72 hours is $144.
The fastest flight from Idaho Falls to United States takes 1h 03m
Direct flights go from Idaho Falls to United States every day.
There are 4,296 airports in United States. From Idaho Falls there are direct flights to Phoenix Sky Harbor Intl (PHX), Dallas/Fort Worth (DFW), Denver Intl (DEN), Seattle/Tacoma Intl (SEA) and 1 more.
  • When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to United States?

    Prices for flights from Idaho Falls Fanning Field Airport to United States refresh daily.

  • How many operators does momondo search for flights from Idaho Falls Fanning Field Airport to United States?

  • How old do you have to be to fly from Idaho Falls Fanning Field Airport to United States?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to United States.

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

    The travel and health documents you'll need for your trip to United States may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United States. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Idaho Falls to United States

Compare and see reviews for airlines that fly from Idaho Falls to United States with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $43Free CancellationRating
7.2
711 reviews
Search Allegiant Air flights
Alaska AirlinesPriceFrom $120Free CancellationRating
8.0
11,891 reviews
Search Alaska Airlines flights
DeltaPriceFrom $130Free CancellationRating
7.9
8,205 reviews
Search Delta flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,308 reviews
Search United Airlines flights
American AirlinesPriceFrom $290Free CancellationRating
7.2
11,294 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho Falls 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 Falls to United States. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho Falls to United States.

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

Price alerts on flights to United States from Idaho Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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1 adult
Thu 3/19
Thu 3/26

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