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Idaho Falls

$94+ 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SEA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Cheapest one-way flight

$86

Cheapest round-trip flight

$88

Cheapest airline

Alaska Airlines

Most popular destination

Denver Intl (DEN)

Good round-trip deal

$100 or less

Good one-way deal

$45 or less
The cheapest one-way flight from Idaho Falls Fanning Field is currently to Denver Intl.
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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, Alaska Airlines currently has the cheapest one-way flight from Idaho Falls Fanning Field (avg. price of $318).
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Denver Intl (DEN) is currently the most popular flight destination from Idaho Falls Fanning Field (average round-trip price of $325).
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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 September 17, 2025.

This Booking.com deal was found by Cheapflights users on 9/15. 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 12/53:26 pmIDA - PDX
Nonstop1h 45mAllegiant Air
Mon 12/812:01 pmPDX - IDA
Nonstop1h 35mAllegiant Air
Deal found 9/15$101
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:53 pmIDA - SEA
1 stop4h 29mDelta
Mon 10/275:25 amSEA - IDA
1 stop6h 08mDelta
Deal found 9/16$167
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/204:15 pmIDA - DEN
Nonstop1h 50mUnited Airlines
Wed 11/269:05 pmDEN - IDA
Nonstop1h 47mUnited Airlines
Deal found 9/16$189
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/35:56 pmIDA - DEN
Nonstop1h 44mUnited Airlines
Sun 10/128:00 amDEN - IDA
Nonstop1h 48mUnited Airlines
Deal found 9/15$194
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 12/135:04 pmIDA - SEA
Nonstop2h 09mAlaska Airlines
Sat 12/209:21 pmSEA - IDA
Nonstop1h 46mAlaska Airlines
Deal found 9/15$197
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/302:35 pmIDA - DEN
Nonstop1h 48mUnited Airlines
Sat 10/48:00 amDEN - IDA
Nonstop1h 48mUnited Airlines
Deal found 9/15$199
This Booking.com deal was found by Cheapflights users on 9/17. 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 11/215:22 pmIDA - PDX
Nonstop1h 45mAllegiant Air
Mon 11/241:54 pmPDX - IDA
Nonstop1h 38mAllegiant Air
Deal found 9/17$203
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:57 pmIDA - DEN
1 stop3h 32mDelta
Sat 11/156:20 pmDEN - IDA
1 stop4h 13mDelta
Deal found 9/15$209
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 12/88:16 pmIDA - DFW
1 stop25h 41mMultiple Airlines
Sat 12/136:00 amDFW - IDA
1 stop6h 59mMultiple Airlines
Deal found 9/15$210
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:58 pmIDA - DEN
1 stop8h 21mAmerican Airlines
Tue 11/186:00 amDEN - IDA
1 stop7h 28mAmerican Airlines
Deal found 9/15$211
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/145:00 amIDA - DEN
Nonstop1h 56mUnited Airlines
Mon 10/208:00 amDEN - IDA
Nonstop1h 48mUnited Airlines
Deal found 9/16$219
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:00 amIDA - DEN
Nonstop1h 51mUnited Airlines
Sun 10/59:05 pmDEN - IDA
Nonstop1h 44mUnited Airlines
Deal found 9/14$224

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 September 17, 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

Sat 10/25

6:53 pm-10:22 pm

1 stop4h 29m

Seattle/Tacoma Intl

Mon 10/27

5:25 am-12:33 pm

1 stop6h 08m

$167

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Fri 10/3

5:56 pm-7:40 pm

Nonstop1h 44m

Denver Intl

Sun 10/12

7:07 pm-8:52 pm

Nonstop1h 45m

$194

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Mon 10/6

5:56 pm-7:40 pm

Nonstop1h 44m

Denver Intl

Sun 10/12

8:00 am-9:48 am

Nonstop1h 48m

$194

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Sat 10/18

10:50 am-12:39 pm

Nonstop1h 49m

Denver Intl

Sun 10/19

8:00 am-9:48 am

Nonstop1h 48m

$219

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Fri 10/3

7:00 am-8:51 am

Nonstop1h 51m

Denver Intl

Sun 10/5

9:05 pm-10:49 pm

Nonstop1h 44m

$224

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Sat 12/6

6:05 am-7:14 am

Nonstop2h 09m

Seattle/Tacoma Intl

Sun 12/7

9:15 pm-12:02 am

Nonstop1h 47m

$227

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Mon 12/15

5:04 pm-6:13 pm

Nonstop2h 09m

Seattle/Tacoma Intl

Tue 12/23

9:21 pm-12:07 am

Nonstop1h 46m

$227

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Sat 10/11

6:00 am-7:11 am

Nonstop2h 11m

Seattle/Tacoma Intl

Sat 10/11

7:55 pm-10:38 pm

Nonstop1h 43m

$237

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Sat 12/6

6:05 am-7:14 am

Nonstop2h 09m

Seattle/Tacoma Intl

Sat 12/6

1:36 pm-4:27 pm

Nonstop1h 51m

$237

Idaho FallsPortland

IDA - PDX

IDAPDX

Idaho Falls Fanning Field

Mon 10/27

6:53 pm-11:57 pm

2 stops6h 04m

Portland

Mon 11/3

11:10 am-6:13 pm

2 stops6h 03m

$238

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 60 results
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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 September 12, 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, July is the cheapest month in which you can book a flight from Idaho Falls (average of $119). Flying from Idaho Falls in September will prove the most costly (average of $207). 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 $266
Alaska Airlines
Alaska Airlines
From $189

What are popular destinations to fly to from Idaho Falls?

Some of the most frequent flights departing from Idaho Falls everyday are: Denver (43 flights per day), Salt Lake City (41 flights per day), and Seattle (34 flights per day).

Denver Intl
Denver Intl
From $86
Salt Lake City
Salt Lake City
From $150
Dallas/Fort Worth
Dallas/Fort Worth
From $225
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From $155

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

The cheapest city to fly to from Idaho Falls is Oakland, with prices starting at $45. Explore other affordable destinations below.

Oakland
Oakland
From $45
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From $54
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From $85
Denver Intl
Denver Intl
From $86

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 September 17, 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
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,729 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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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 September 17, 2025.

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

    This month, the top selected destinations from Idaho Falls are Seattle, Las Vegas, Santa Ana. 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 $45 to Oakland, California (prices may vary depending on the airline and departure time). On average, users have booked flights for $354 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 ($51), 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 Seattle starting at $397
    Fly from Idaho Falls Fanning Field to Salt Lake City starting at $800
    Fly from Idaho Falls Fanning Field to Denver starting at $1,766
    Fly from Idaho Falls Fanning Field to Dallas/Fort Worth Airport starting at $2,122

  • 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 $493 so you can fly first-class even on a budget.

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

    July 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 Seattle from $167 round trip
    Fly from Idaho Falls to Denver from $189 round trip
    Fly from Idaho Falls to Dallas from $210 round trip
    Fly from Idaho Falls to Phoenix from $240 round trip
    Fly from Idaho Falls to Orlando from $350 round trip

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