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Idaho Falls

$53+ Cheap flights from Idaho Falls

IDA — PDX
Oct 4 — Oct 111
Sun 10/4
Sun 10/11
1 adult, Economy
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Find flights from Idaho Falls within your budget

 

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Route

Depart

Return

Price

Cheapest round-trip

Idaho FallsLos Angeles

IDA Idaho Falls Fanning Field - LAX Los Angeles

IDALAX

Idaho Falls Fanning Field

Wed 12/16

5:35 pm-9:59 pm

1 stop5h 24m

Los Angeles

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$121

Idaho FallsLos Angeles

IDA Idaho Falls Fanning Field - LAX Los Angeles

IDALAX

Idaho Falls Fanning Field

Mon 10/12

9:33 pm-3:29 pm

2 stops18h 56m

Los Angeles

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$123

Idaho FallsPortland

IDA Idaho Falls Fanning Field - PDX Portland

IDAPDX

Idaho Falls Fanning Field

Mon 1/18

6:45 pm-11:51 pm

1 stop6h 06m

Portland

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$134

Idaho FallsPortland

IDA Idaho Falls Fanning Field - PDX Portland

IDAPDX

Idaho Falls Fanning Field

Sat 10/17

6:00 am-8:50 am

1 stop3h 50m

Portland

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$134

Idaho FallsPortland

IDA Idaho Falls Fanning Field - PDX Portland

IDAPDX

Idaho Falls Fanning Field

Fri 11/13

6:57 pm-11:51 pm

1 stop5h 54m

Portland

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$134

Idaho FallsLos Angeles

IDA Idaho Falls Fanning Field - LAX Los Angeles

IDALAX

Idaho Falls Fanning Field

Fri 10/9

10:49 pm-10:24 am

1 stop12h 35m

Los Angeles

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$137

Idaho FallsLos Angeles

IDA Idaho Falls Fanning Field - LAX Los Angeles

IDALAX

Idaho Falls Fanning Field

Sat 10/31

1:05 pm-6:12 pm

1 stop6h 07m

Los Angeles

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$139

Idaho FallsSan Diego

IDA Idaho Falls Fanning Field - SAN San Diego

IDASAN

Idaho Falls Fanning Field

Wed 12/23

6:57 pm-11:53 pm

1 stop5h 56m

San Diego

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$141

Idaho FallsSan Diego

IDA Idaho Falls Fanning Field - SAN San Diego

IDASAN

Idaho Falls Fanning Field

Tue 10/6

6:56 pm-11:55 pm

1 stop5h 59m

San Diego

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$141

Idaho FallsLas Vegas

IDA Idaho Falls Fanning Field - LAS Las Vegas Harry Reid Intl

IDALAS

Idaho Falls Fanning Field

Sun 10/4

6:57 pm-11:35 pm

1 stop5h 38m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$151

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/3

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Compare providers for flights from Idaho Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls in September
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*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, FlightHub has been found to have the most accurate pricing. Users can find the same prices on deals on Cheapflights as FlightHub 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 FlightHub the highest out of those offering flight deals from Idaho Falls. FlightHub 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

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.

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

Currently, June is the cheapest month in which you can book a flight from Idaho Falls (average of $119). Flying from Idaho Falls in April will prove the most costly (average of $566). 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: Allegiant Air, Alaska Airlines, Delta. These airlines depart to the following popular destinations: Portland.

United Airlines
United Airlines
From $143
Delta
Delta
From $98
Allegiant Air
Allegiant Air
From $82
Alaska Airlines
Alaska Airlines
From $165

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 (50 flights per day), Dallas (49 flights per day), and Denver (38 flights per day).

Denver Intl
Denver Intl
From $180
Salt Lake City
Salt Lake City
From $155
Dallas/Fort Worth
Dallas/Fort Worth
From $239
Portland
Portland
From $101

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 $101
Santa Ana J. Wayne/Orange Cnty
Santa Ana J. Wayne/Orange Cnty
From $150
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From $151

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

To ensure you get the cheapest price possible for a flight from Idaho Falls, you should look to book at least 53 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.

Airline reviews for flights from Idaho Falls

Peruse reviews from past customers who have flown Alaska Airlines,Delta, andAllegiant Air 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
7.9
Good
12,876 reviews

Overall

7.9

Food

7.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Alaska Airlines
7.9
Good
12,876 reviews
Alaska Airlines
7.9
Good
12,876 reviews

Overall

7.9

Food

7.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Delta
7.8
Good
8,563 reviews
Alaska Airlines
7.9
Good
12,876 reviews

Overall

7.9

Food

7.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Allegiant Air
7.3
Good
676 reviews
Alaska Airlines
7.9
Good
12,876 reviews

Overall

7.9

Food

7.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Browse thousands of different options on Cheapflights for your next trip

Related info for your journey

  • 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, Cancún. Throughout the year, Las Vegas, Denver, Seattle 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 $349 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 United Airlines have the cheapest prices from Idaho Falls. Allegiant Air flights from Idaho Falls to Phoenix-Mesa Gateway ($82), Delta flights from Idaho Falls to Albuquerque ($98), and United Airlines flights from Idaho Falls to Albuquerque ($143).

  • 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 $582
    Fly from Idaho Falls Fanning Field to Denver starting at $1,649
    Fly from Idaho Falls Fanning Field to Salt Lake City starting at $1,938
    Fly from Idaho Falls Fanning Field to Dallas/Fort Worth Airport starting at $3,129

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

    If you’re looking for a cheap first-class flight from Idaho Falls, consider Portland. Prices start at $738 so you can fly first-class even on a budget.

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

    June is currently the cheapest month to fly from Idaho Falls. At this moment in time April 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 Los Angeles from $179 round trip
    Fly from Idaho Falls to Portland from $262 round trip
    Fly from Idaho Falls to Denver from $279 round trip
    Fly from Idaho Falls to Phoenix from $311 round trip
    Fly from Idaho Falls to Dallas from $334 round trip

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