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Idaho Falls

$49+ Cheap flights from Idaho Falls

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SEA
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
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What to know about flights from Idaho Falls

Discover essential information about flights departing from Idaho Falls, including flight schedules, destinations, airlines operating at the Idaho Falls airport, and any specific guidelines or requirements for travelers. Please note that the information is based on the most recent updates available. Data last updated December 10, 2025.

Cheapest one-way flight

$154

Cheapest round-trip flight

$88

Cheapest airline

Allegiant Air

Most popular destination

Denver Intl (DEN)

Good round-trip deal

$114 or less

Good one-way deal

$58 or less
The cheapest one-way flight from Idaho Falls Fanning Field is currently to Salt Lake City.
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The cheapest round-trip flight from Idaho Falls Fanning Field is currently to Las Vegas Harry Reid Intl.
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On average, Allegiant Air currently has the cheapest one-way flight from Idaho Falls Fanning Field (avg. price of $198).
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Denver Intl (DEN) is currently the most popular flight destination from Idaho Falls Fanning Field (average round-trip price of $328).
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Price to beat on a round-trip flight from Idaho Falls Fanning Field.
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Price to beat on a one-way flight from Idaho Falls Fanning Field.
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Find flights from Idaho Falls

Cheapest flights from Idaho Falls
Explore the most affordable flight options available from Idaho Falls. Find the lowest fares based on data from user searches, with prices last updated on December 10, 2025.

This Booking.com deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/269:20 pmIDA - LAS
Nonstop1h 47mAllegiant Air
Fri 1/3011:23 amLAS - IDA
Nonstop1h 56mAllegiant Air
Deal found 12/8$80
This Gotogate deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/510:52 pmIDA - LAS
Nonstop1h 43mAllegiant Air
Mon 1/1211:23 amLAS - IDA
Nonstop1h 56mAllegiant Air
Deal found 12/8$86
This Gotogate deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/239:20 pmIDA - LAS
Nonstop1h 47mAllegiant Air
Mon 1/2611:23 amLAS - IDA
Nonstop1h 56mAllegiant Air
Deal found 12/10$102
This Gotogate deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/99:20 pmIDA - LAS
Nonstop1h 47mAllegiant Air
Mon 1/1211:23 amLAS - IDA
Nonstop1h 56mAllegiant Air
Deal found 12/9$108
This Booking.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/99:20 pmIDA - LAS
Nonstop1h 47mAllegiant Air
Fri 1/1611:23 amLAS - IDA
Nonstop1h 56mAllegiant Air
Deal found 12/10$112
This Mytrip deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2310:31 pmIDA - LAS
Nonstop1h 48mAllegiant Air
Fri 2/2712:45 pmLAS - IDA
Nonstop1h 45mAllegiant Air
Deal found 12/9$113
This Cheapflightsfares deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2310:31 pmIDA - LAS
Nonstop1h 48mAllegiant Air
Mon 3/212:45 pmLAS - IDA
Nonstop1h 45mAllegiant Air
Deal found 12/7$128
This Cheapflightsfares deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:20 pmIDA - LAS
Nonstop1h 45mAllegiant Air
Fri 12/261:23 pmLAS - IDA
Nonstop1h 49mAllegiant Air
Deal found 12/8$147
This Mytrip deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:31 pmIDA - LAS
Nonstop1h 48mAllegiant Air
Fri 2/2712:45 pmLAS - IDA
Nonstop1h 45mAllegiant Air
Deal found 12/7$152
This Kiwi.com deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/510:52 pmIDA - LAS
Nonstop1h 43mMultiple Airlines
Mon 1/122:28 pmLAS - IDA
1 stop5h 02mMultiple Airlines
Deal found 12/8$161
This Alaska Airlines deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/219:00 amIDA - SEA
Nonstop2h 10mAlaska Airlines
Tue 1/273:35 pmSEA - IDA
Nonstop1h 43mAlaska Airlines
Deal found 12/9$177
This Kiwi.com deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/510:52 pmIDA - LAX
1 stop12h 44mMultiple Airlines
Thu 1/84:07 pmLAX - IDA
1 stop21h 12mMultiple Airlines
Deal found 12/8$185

Find flights from Idaho Falls within your budget

 
Find flights departing from Idaho Falls that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on December 10, 2025. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

Seattle

Route

Depart

Return

Price

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Thu 1/22

6:58 pm-8:00 pm

Nonstop2h 02m

Seattle/Tacoma Intl

Sat 1/24

8:16 pm-10:59 pm

Nonstop1h 43m

$187

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Wed 1/21

6:35 pm-12:09 am

1 stop6h 34m

Seattle/Tacoma Intl

Sat 1/24

5:00 am-12:34 pm

1 stop6h 34m

$187

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Thu 1/22

6:58 pm-8:00 pm

Nonstop2h 02m

Seattle/Tacoma Intl

Tue 1/27

8:16 pm-10:59 pm

Nonstop1h 43m

$187

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Tue 1/20

1:15 pm-4:55 pm

1 stop4h 40m

Seattle/Tacoma Intl

Tue 1/27

4:55 pm-10:57 pm

1 stop5h 02m

$187

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Tue 2/3

6:58 pm-8:00 pm

Nonstop2h 02m

Seattle/Tacoma Intl

Wed 2/25

1:59 pm-4:43 pm

Nonstop1h 44m

$187

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Sat 2/14

5:20 pm-6:21 pm

Nonstop2h 01m

Seattle/Tacoma Intl

Wed 2/18

8:52 pm-11:36 pm

Nonstop1h 44m

$187

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Fri 1/23

6:58 pm-8:00 pm

Nonstop2h 02m

Seattle/Tacoma Intl

Wed 1/28

3:35 pm-6:18 pm

Nonstop1h 43m

$187

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Sat 1/24

6:58 pm-8:00 pm

Nonstop2h 02m

Seattle/Tacoma Intl

Sun 1/25

8:16 pm-10:59 pm

Nonstop1h 43m

$187

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Thu 1/8

2:40 pm-4:31 pm

Nonstop1h 51m

Denver Intl

Tue 1/13

1:39 pm-3:31 pm

Nonstop1h 52m

$189

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Thu 1/15

4:19 pm-6:13 pm

Nonstop1h 54m

Denver Intl

Sun 1/18

11:45 am-1:30 pm

Nonstop1h 45m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 60 results
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Compare providers for flights from Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls in December
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: Among all the travel providers offering deals on flights from Idaho Falls, eDreams has been found to have the most accurate pricing. Users can find the same prices on deals on Cheapflights as eDreams about >95% of the time. This is based on searches for flights from Idaho Falls made on Cheapflights over the past month and is updated monthly.
  • Most trusted provider: In terms of trustworthiness, Cheapflights users rate eDreams the highest out of those offering flight deals from Idaho Falls. eDreams has a user feedback rating of 3 out of 3 stars (3 being the best) and has received the most positive sentiment from Cheapflights users searching for flights from Idaho Falls. This info is gathered from Cheapflights searches over the past month.

Best time to book a flight from Idaho Falls

Have a flexible travel schedule? Discover the best time to fly from Idaho Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Idaho Falls

Get recent, data-driven insights about flights from Idaho Falls including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Idaho Falls?

Use this chart to determine the optimal time to book a round-trip flight from Idaho Falls to Seattle. Price data was last updated on December 5, 2025.

To ensure you get the cheapest price possible for a flight from Idaho Falls, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from Idaho Falls (average of $112). Flying from Idaho Falls in September will prove the most costly (average of $206). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Idaho Falls?

For flights departing from Idaho Falls check dates and pricing for the following: Alaska Airlines, Hawaiian Airlines, Delta. These airlines depart to the following popular destinations: Seattle.

United Airlines
United Airlines
From $155
Delta
Delta
From $118
American Airlines
American Airlines
From $198
Allegiant Air
Allegiant Air
From $54

What are popular destinations to fly to from Idaho Falls?

Some of the most frequent flights departing from Idaho Falls everyday are: Salt Lake City (47 flights per day), Denver (31 flights per day), and Seattle (26 flights per day).

Denver Intl
Denver Intl
From $193
Salt Lake City
Salt Lake City
From $154
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From $172
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From $102

What is the cheapest place to fly to from Idaho Falls?

The cheapest city to fly to from Idaho Falls is Las Vegas Harry Reid Intl, with prices starting at $54. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From $54
Portland
Portland
From $80
Santa Ana J. Wayne/Orange Cnty
Santa Ana J. Wayne/Orange Cnty
From $87
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From $102

Airline reviews for flights from Idaho Falls

Read reviews and ratings of airlines operating flights from Idaho Falls. Gain insights into the quality of service, in-flight amenities, customer experiences, and overall satisfaction to choose the best airline for your Idaho Falls travel. Please note that the reviews are sourced from user searches and were last updated on December 10, 2025. In the last 7 days, Cheapflights users made a total of 2,558,603 searches.
Peruse reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines from Idaho Falls to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,423 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,423 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Delta
7.9
Good
8,007 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Hawaiian Airlines
7.8
Good
2,818 reviews
Alaska Airlines
8.0
Very good
11,423 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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Related info for your journey

Access useful and relevant information related to your journey from Idaho Falls. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated December 10, 2025.

  • What are the most popular destinations to fly to from Idaho Falls?

    This month, the top selected destinations from Idaho Falls are Las Vegas, Seattle, Guadalajara. Throughout the year, Las Vegas, Seattle, Denver are some of the top choices made by users flying from Idaho Falls.

  • What is the cheapest flight from Idaho Falls to anywhere?

    Users have flown out of Idaho Falls for as low as $54 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for $384 to fly from Idaho Falls.

  • What are the cheapest airlines flying from Idaho Falls to anywhere?

    Over the past few days, we've found that Allegiant Air, Delta, and Hawaiian Airlines have the cheapest prices from Idaho Falls. Allegiant Air flights from Idaho Falls to Phoenix-Mesa Gateway ($54), Delta flights from Idaho Falls to Albuquerque ($118), and Hawaiian Airlines flights from Idaho Falls to Spokane ($119).

  • What is the cheapest premium economy flight from Idaho Falls?

    Options for some of the cheapest premium economy flights from Idaho Falls we have found on Cheapflights are as follows:
    Fly from Idaho Falls Fanning Field to Salt Lake City starting at $994
    Fly from Idaho Falls Fanning Field to Denver starting at $1,911
    Fly from Idaho Falls Fanning Field to Seattle starting at $2,121

  • What is the cheapest first class flight from Idaho Falls?

    If you’re looking for a cheap first-class flight from Idaho Falls, consider Seattle. Prices start at $408 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from Idaho Falls?

    October is currently the cheapest month to fly from Idaho Falls. At this moment in time September is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

  • Where are the cheapest places to fly to from Idaho Falls?

    Check out the cheapest flights from Idaho Falls to embark to:
    Fly from Idaho Falls to Las Vegas from $80 round trip
    Fly from Idaho Falls to Seattle from $190 round trip
    Fly from Idaho Falls to Phoenix from $199 round trip
    Fly from Idaho Falls to Fort Lauderdale from $349 round trip
    Fly from Idaho Falls to Orlando from $406 round trip

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