Idaho Falls

$93+ Cheap flights from Phoenix to Idaho Falls (IDA)

PHX — IDA
Sep 24 — Oct 11
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Cheap flight deals from Phoenix to Idaho Falls

Cheapest flights from Phoenix to Idaho Falls

Thu 9/245:23 pm -
1 stop17h 35m
Mon 9/286:21 pm -
1 stop18h 38m
Deal found 8/22$180
Thu 9/175:23 pm -
1 stop17h 41m
Mon 9/216:21 pm -
1 stop18h 38m
Deal found 8/23$193
Thu 10/15:23 pm -
1 stop21h 37m
Mon 10/57:42 pm -
1 stop17h 17m
Deal found 8/23$204
Thu 10/82:49 pm -
1 stop24h 11m
Mon 10/129:33 pm -
1 stop18h 56m
Deal found 8/22$214
Mon 10/128:08 am -
1 stop5h 31m
Mon 10/199:33 pm -
1 stop15h 50m
Deal found 8/21$223
Fri 10/98:08 am -
1 stop6h 52m
Mon 10/129:33 pm -
1 stop15h 50m
Deal found 8/24$232
Fri 10/168:08 am -
1 stop6h 52m
Mon 10/199:33 pm -
1 stop15h 50m
Deal found 8/21$246

Find flight deals from Phoenix to Idaho Falls

Round-trip from

$180
(Kiwi.com)

One-way from

$93
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$456
From Phoenix to Idaho Falls Fanning Field
One-way flight from Phoenix to Idaho Falls Fanning Field
Highest demand for flights based on searches. 5% potential increase in price ($25 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in August 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Phoenix to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixIdaho Falls

PHX Phoenix Sky Harbor Intl - IDA Idaho Falls Fanning Field

PHXIDA

Phoenix Sky Harbor Intl

Mon 10/19

7:25 pm-3:20 pm

2 stops18h 55m

Idaho Falls Fanning Field

Wed 10/21

6:09 am-8:41 pm

2 stops15h 32m

$378

PhoenixIdaho Falls

PHX Phoenix Sky Harbor Intl - IDA Idaho Falls Fanning Field

PHXIDA

Phoenix Sky Harbor Intl

Fri 10/16

7:25 pm-3:20 pm

2 stops18h 55m

Idaho Falls Fanning Field

Mon 10/19

3:57 pm-9:26 am

2 stops18h 29m

$414

PhoenixIdaho Falls

PHX Phoenix Sky Harbor Intl - IDA Idaho Falls Fanning Field

PHXIDA

Phoenix Sky Harbor Intl

Fri 10/9

7:25 pm-3:20 pm

2 stops18h 55m

Idaho Falls Fanning Field

Mon 10/12

1:58 pm-9:48 pm

1 stop8h 50m

$449

PhoenixIdaho Falls

PHX Phoenix Sky Harbor Intl - IDA Idaho Falls Fanning Field

PHXIDA

Phoenix Sky Harbor Intl

Thu 10/22

10:12 am-10:59 pm

2 stops11h 47m

Idaho Falls Fanning Field

Sun 10/25

3:57 pm-6:42 pm

2 stops27h 45m

$464
Quickest round-trip

PhoenixIdaho Falls

PHX Phoenix Sky Harbor Intl - IDA Idaho Falls Fanning Field

PHXIDA

Phoenix Sky Harbor Intl

Thu 2/11

8:05 am-3:29 pm

1 stop7h 24m

Idaho Falls Fanning Field

Sun 2/14

4:00 pm-9:17 pm

1 stop5h 17m

$487

PhoenixIdaho Falls

PHX Phoenix Sky Harbor Intl - IDA Idaho Falls Fanning Field

PHXIDA

Phoenix Sky Harbor Intl

Thu 10/8

2:41 pm-10:59 pm

1 stop7h 18m

Idaho Falls Fanning Field

Mon 10/12

1:58 pm-9:48 pm

1 stop8h 50m

$487
Cheapest one-way

PhoenixIdaho Falls

PHX Phoenix Sky Harbor Intl - IDA Idaho Falls Fanning Field

PHXIDA

Phoenix Sky Harbor Intl

Sun 9/20

5:23 pm-11:34 am

1 stop17h 11m

$144

PhoenixIdaho Falls

PHX Phoenix Sky Harbor Intl - IDA Idaho Falls Fanning Field

PHXIDA

Phoenix Sky Harbor Intl

Wed 10/21

10:12 am-10:59 pm

2 stops11h 47m

$189

PhoenixIdaho Falls

PHX Phoenix Sky Harbor Intl - IDA Idaho Falls Fanning Field

PHXIDA

Phoenix Sky Harbor Intl

Wed 11/18

11:24 am-10:54 pm

2 stops11h 30m

$189

PhoenixIdaho Falls

PHX Phoenix Sky Harbor Intl - IDA Idaho Falls Fanning Field

PHXIDA

Phoenix Sky Harbor Intl

Tue 9/22

7:08 am-10:56 pm

2 stops14h 48m

$195

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 16 resultsSorted by cheapest first
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Best time to book a flight from Phoenix to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Phoenix with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Phoenix to Idaho Falls

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

Currently, January is the cheapest month in which you can book a flight from Phoenix to Idaho Falls (average of $156). Flying from Phoenix to Idaho Falls in July is currently the most expensive (average of $408). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to IDA?

Unlike in the evening, when flights are generally more expensive, you can save up to 40% on flights from Phoenix to Idaho Falls by exploring options for tickets in the afternoon.

How often are flights from Phoenix to Idaho Falls delayed?

About 15% of weekly flights between Phoenix and Idaho Falls have experienced delays in the past year, with the average delay time being 113 minutes.

What is the most punctual flight time for Phoenix to Idaho Falls flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Phoenix to Idaho Falls flights?

Over the last year, American Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown Delta,United Airlines, andAllegiant Air from Phoenix to Idaho Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.8

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.8

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.8

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.8

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.8

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Related info for your journey

  • What airport do you fly into for flights to Idaho Falls from Phoenix?

    Most people fly into Idaho Falls Fanning Field (IDA) if they book a flight to Idaho Falls from Phoenix. On average, Fanning Field has 0 inbound flights from Phoenix per day from 4 airlines. Idaho Falls Fanning Field is conveniently located just 3.8 mi from Idaho Falls’s city center.

  • How long is the flight from Phoenix to Idaho Falls?

    Departing from Phoenix to Idaho Falls will take you 18h 55m. Airlines will cover a distance of 696 mi.

  • What are the cheapest airlines flying from Phoenix to Idaho Falls round-trip?

    Cheapflights users have booked flights from Phoenix to Idaho Falls round-trip from $128. Other airlines that can offer you cheap pricing are Delta, from $190, and American Airlines, from $248. Allegiant Air is priced at 71% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Phoenix to Idaho Falls one-way?

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $68. Users have also found prices from $195 and $210 on Delta and American Airlines, respectively.

  • Can I find deals for flights from Phoenix to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on Phoenix to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Phoenix to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phoenix to Idaho Falls.

  • Can I find deals for business class flights from Phoenix to Idaho Falls?

    Yes. Cheapflights offers flight deals from Phoenix to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from Phoenix to Idaho Falls (average of $156). Flying from Phoenix to Idaho Falls in July is currently the most expensive (average of $408). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from Phoenix to Idaho Falls

AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$128Average$221FlexibilityNo cancel feeOn-time88%
DeltaCheapest$190Average$524FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$351FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$290Average$520FlexibilityNo cancel feeOn-time69%

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