Idaho Falls

$54+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SEA
Jun 22 — Jun 291
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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 June 17, 2025.

Cheapest one-way flight

$51

Cheapest round-trip flight

$48

Cheapest airline

Allegiant Air

Most popular destination

Denver Intl (DEN)

Good round-trip deal

$90 or less

Good one-way deal

$65 or less
The cheapest one-way flight from Idaho Falls Fanning Field is currently to Denver Intl.
The cheapest round-trip flight from Idaho Falls Fanning Field is currently to Portland.
On average, Allegiant Air currently has the cheapest one-way flight from Idaho Falls Fanning Field (avg. price of $211).
Denver Intl (DEN) is currently the most popular flight destination from Idaho Falls Fanning Field (average round-trip price of $279).
Price to beat on a round-trip flight from Idaho Falls Fanning Field.
Price to beat on a one-way flight from Idaho Falls Fanning Field.

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 June 17, 2025.

Mon 7/216:12 pmIDA - LAS
Nonstop1h 42mAllegiant Air
Fri 7/258:56 amLAS - IDA
Nonstop1h 48mAllegiant Air
Deal found 6/16$68
Thu 7/105:49 pmIDA - DEN
Nonstop1h 48mAllegiant Air
Sun 7/133:20 pmDEN - IDA
Nonstop1h 44mAllegiant Air
Deal found 6/15$88
Mon 7/217:23 pmIDA - LAS
1 stop13h 12mMultiple Airlines
Fri 7/258:56 amLAS - IDA
Nonstop1h 48mMultiple Airlines
Deal found 6/17$137
Sat 9/63:57 pmIDA - SEA
Nonstop1h 56mAlaska Airlines
Sat 9/67:55 pmSEA - IDA
Nonstop1h 44mAlaska Airlines
Deal found 6/16$172
Tue 9/26:13 amIDA - SEA
Nonstop1h 57mHawaiian Airlines
Sat 9/67:55 pmSEA - IDA
Nonstop1h 44mHawaiian Airlines
Deal found 6/16$177
Mon 6/306:17 pmIDA - LAX
1 stop13h 42mMultiple Airlines
Fri 7/45:30 amLAX - IDA
1 stop5h 14mMultiple Airlines
Deal found 6/15$181
Wed 7/306:52 pmIDA - DEN
1 stop3h 19mDelta
Tue 8/57:10 amDEN - IDA
1 stop3h 24mDelta
Deal found 6/15$209
Tue 8/196:52 pmIDA - SEA
1 stop4h 23mDelta
Sat 8/235:30 amSEA - IDA
1 stop4h 09mDelta
Deal found 6/15$227
Tue 8/263:57 pmIDA - LAS
1 stop6h 30mAlaska Airlines
Thu 9/42:07 pmLAS - IDA
1 stop7h 32mAlaska Airlines
Deal found 6/15$240
Mon 9/293:57 pmIDA - LAX
1 stop5h 51mAlaska Airlines
Thu 10/23:40 pmLAX - IDA
1 stop5h 59mAlaska Airlines
Deal found 6/15$240
Thu 8/76:00 amIDA - LAS
1 stop3h 49mDelta
Tue 8/195:19 pmLAS - IDA
1 stop4h 08mDelta
Deal found 6/16$241
Wed 11/54:15 pmIDA - DEN
Nonstop1h 50mUnited Airlines
Fri 11/141:30 pmDEN - IDA
Nonstop1h 46mUnited Airlines
Deal found 6/16$249

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 June 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 FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Sun 7/27

5:49 pm-7:37 pm

Nonstop1h 48m

Denver Intl

Thu 7/31

3:20 pm-5:04 pm

Nonstop1h 44m

$95

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Wed 7/2

4:58 pm-5:40 pm

Nonstop1h 42m

Las Vegas Harry Reid Intl

Fri 7/4

8:56 am-11:44 am

Nonstop1h 48m

$96

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Mon 7/21

7:23 pm-7:35 am

1 stop13h 12m

Las Vegas Harry Reid Intl

Fri 7/25

8:56 am-11:44 am

Nonstop1h 48m

$137

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Sat 9/6

3:57 pm-4:53 pm

Nonstop1h 56m

Seattle/Tacoma Intl

Sat 9/6

7:55 pm-10:39 pm

Nonstop1h 44m

$172

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Tue 9/2

6:13 am-7:10 am

Nonstop1h 57m

Seattle/Tacoma Intl

Sat 9/6

7:55 pm-10:39 pm

Nonstop1h 44m

$177

Idaho FallsLos Angeles

IDA - LAX

IDALAX

Idaho Falls Fanning Field

Mon 6/30

6:17 pm-6:59 am

1 stop13h 42m

Los Angeles

Fri 7/4

5:30 am-11:44 am

1 stop5h 14m

$181

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Wed 7/30

6:52 pm-10:11 pm

1 stop3h 19m

Denver Intl

Tue 8/5

7:10 am-10:34 am

1 stop3h 24m

$209

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Tue 8/19

6:52 pm-10:15 pm

1 stop4h 23m

Seattle/Tacoma Intl

Sat 8/23

5:30 am-10:39 am

1 stop4h 09m

$227

Idaho FallsLas Vegas

IDA - LAS

IDALAS

Idaho Falls Fanning Field

Tue 8/26

3:57 pm-9:27 pm

1 stop6h 30m

Las Vegas Harry Reid Intl

Thu 9/4

2:07 pm-10:39 pm

1 stop7h 32m

$240

Idaho FallsLos Angeles

IDA - LAX

IDALAX

Idaho Falls Fanning Field

Mon 9/29

3:57 pm-8:48 pm

1 stop5h 51m

Los Angeles

Thu 10/2

3:40 pm-10:39 pm

1 stop5h 59m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

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 June 13, 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 December 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.

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 June 17, 2025. In the last 7 days, Cheapflights users made a total of 2,558,603 searches.

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
8.0
Very good

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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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 June 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, Denver, Portland. Throughout the year, Seattle, Las Vegas, 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 $48 to Portland (prices may vary depending on the airline and departure time). On average, users have booked flights for $297 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 Honolulu ($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 $697
    Fly from Idaho Falls Fanning Field to Seattle starting at $733
    Fly from Idaho Falls Fanning Field to Denver starting at $1,112
    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 Salt Lake City. Prices start at $782 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 December 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 Denver from $88 round trip
    Fly from Idaho Falls to Seattle from $207 round trip

See more FAQs

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