$79+ Cheap flights from Idaho Falls (IDA) to Phoenix
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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PHX
Jun 12 — Jun 191
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Idaho Falls to Phoenix with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho Falls to Phoenix
Cheapest
Best
Last-minute
One-way
Cheapest flights from Idaho Falls to PhoenixExplore the most affordable flight options available from Idaho Falls to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.
Explore the most affordable flight options available from Idaho Falls to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.
This Delta deal was found by Cheapflights users on 5/12. 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.
Fri 10/236:45 pm
IDA
- PHX
1 stop5h 57m
Delta
Mon 10/265:20 pm
PHX
- IDA
1 stop3h 59m
Delta
Deal found 5/12![Delta logo]()
$191
This Delta deal was found by Cheapflights users on 5/11. 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.
Thu 5/286:54 pm
IDA
- PHX
1 stop5h 35m
Delta
Mon 6/16:05 am
PHX
- IDA
1 stop3h 42m
Delta
Deal found 5/11![Delta logo]()
$205
This Delta deal was found by Cheapflights users on 5/12. 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.
Tue 5/263:16 pm
IDA
- PHX
1 stop3h 49m
Delta
Sat 5/305:16 pm
PHX
- IDA
1 stop4h 26m
Delta
Deal found 5/12![Delta logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/14:43 pm
IDA
- PHX
1 stop19h 40m
Multiple Airlines
Thu 6/410:27 pm
PHX
- IDA
1 stop16h 41m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$224
This Delta deal was found by Cheapflights users on 5/12. 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.
Thu 5/2111:30 am
IDA
- PHX
1 stop5h 29m
Delta
Wed 5/276:05 am
PHX
- IDA
1 stop3h 42m
Delta
Deal found 5/12![Delta logo]()
$263
This Delta deal was found by Cheapflights users on 5/12. 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.
Wed 5/2011:30 am
IDA
- PHX
1 stop5h 29m
Delta
Sun 5/246:05 am
PHX
- IDA
1 stop3h 42m
Delta
Deal found 5/12![Delta logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Fri 8/2111:37 am
IDA
- PHX
1 stop4h 37m
Multiple Airlines
Mon 8/247:45 am
PHX
- IDA
2 stops7h 58m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 5/12. 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 5/233:16 pm
IDA
- PHX
2 stops21h 09m
Delta
Fri 5/295:16 pm
PHX
- IDA
1 stop4h 26m
Delta
Deal found 5/12![Delta logo]()
$380
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 10/201:46 pm
IDA
- PHX
1 stop9h 01m
Alaska Airlines
Wed 12/27:05 am
PHX
- IDA
1 stop8h 24m
Alaska Airlines
Deal found 5/11![Alaska Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 5/12. 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.
Wed 5/136:54 pm
IDA
- PHX
1 stop5h 35m
Delta
Thu 5/145:16 pm
PHX
- IDA
1 stop4h 26m
Delta
Deal found 5/12![Delta logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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 10/216:09 am
IDA
- PHX
2 stops13h 33m
Alaska Airlines
Wed 12/21:55 pm
PHX
- IDA
1 stop8h 44m
Alaska Airlines
Deal found 5/11![Alaska Airlines logo]()
$406
Best flights from Idaho Falls to PhoenixDiscover carefully curated flight deals from Idaho Falls to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 13, 2026.
Discover carefully curated flight deals from Idaho Falls to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/110:55 am
IDA
- PHX
1 stop7h 57m
Multiple Airlines
Thu 6/47:40 pm
PHX
- IDA
2 stops21h 09m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$298
This Alaska Airlines deal was found by Cheapflights users on 5/9. 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.
Sat 9/124:14 pm
IDA
- PHX
2 stops7h 18m
Alaska Airlines
Fri 9/185:43 pm
PHX
- IDA
1 stop18h 23m
Alaska Airlines
Deal found 5/9![Alaska Airlines logo]()
$435
This Delta deal was found by Cheapflights users on 5/11. 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.
Tue 10/206:00 am
IDA
- PHX
2 stops16h 52m
Delta
Fri 12/42:20 pm
PHX
- IDA
1 stop3h 54m
Delta
Deal found 5/11![Delta logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 5/9. 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.
Fri 10/231:46 pm
IDA
- PHX
2 stops20h 40m
Alaska Airlines
Mon 10/267:24 pm
PHX
- IDA
2 stops16h 42m
Alaska Airlines
Deal found 5/9![Alaska Airlines logo]()
$447
This Delta deal was found by Cheapflights users on 5/11. 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.
Fri 10/236:45 pm
IDA
- PHX
2 stops17h 40m
Delta
Tue 12/16:20 pm
PHX
- IDA
1 stop3h 59m
Delta
Deal found 5/11![Delta logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 5/13. 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.
Mon 7/137:15 am
IDA
- PHX
1 stop6h 46m
Alaska Airlines
Wed 7/154:00 pm
PHX
- IDA
1 stop5h 39m
Alaska Airlines
Deal found 5/13![Alaska Airlines logo]()
$453
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 6/91:54 pm
IDA
- PHX
2 stops23h 29m
Alaska Airlines
Tue 6/162:37 pm
PHX
- IDA
1 stop7h 02m
Alaska Airlines
Deal found 5/11![Alaska Airlines logo]()
$455
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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.
Thu 5/281:54 pm
IDA
- PHX
1 stop6h 02m
Alaska Airlines
Mon 6/17:53 pm
PHX
- IDA
2 stops26h 00m
Alaska Airlines
Deal found 5/11![Alaska Airlines logo]()
$512
Last-minute flights from Idaho Falls to PhoenixDiscover last-minute flight deals from Idaho Falls to Phoenix. Data last updated May 13, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Phoenix. Data last updated May 13, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/12. 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.
Wed 5/2011:30 am
IDA
- PHX
1 stop5h 29m
Delta
Sun 5/246:05 am
PHX
- IDA
1 stop3h 42m
Delta
Deal found 5/12![Delta logo]()
$307
This Expedia deal was found by Cheapflights users on 5/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:00 am
IDA
- PHX
1 stop5h 46m
Alaska Airlines
Wed 5/277:20 am
PHX
- IDA
2 stops14h 33m
Alaska Airlines
Deal found 5/12![Alaska Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 5/12. 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.
Thu 5/2111:30 am
IDA
- PHX
1 stop5h 29m
Delta
Wed 5/276:05 am
PHX
- IDA
1 stop3h 42m
Delta
Deal found 5/12![Delta logo]()
$263
This Delta deal was found by Cheapflights users on 5/12. 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.
Thu 5/2111:30 am
IDA
- PHX
1 stop5h 29m
Delta
Tue 5/267:04 pm
PHX
- IDA
1 stop14h 43m
Delta
Deal found 5/12![Delta logo]()
$447
This Delta deal was found by Cheapflights users on 5/12. 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.
Thu 5/2111:30 am
IDA
- PHX
1 stop5h 29m
Delta
Mon 5/256:05 am
PHX
- IDA
1 stop3h 42m
Delta
Deal found 5/12![Delta logo]()
$473
This Delta deal was found by Cheapflights users on 5/12. 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.
Thu 5/2111:30 am
IDA
- PHX
1 stop5h 29m
Delta
Fri 5/2912:59 am
PHX
- IDA
2 stops16h 15m
Delta
Deal found 5/12![Delta logo]()
$482
This Delta deal was found by Cheapflights users on 5/12. 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.
Fri 5/226:54 pm
IDA
- PHX
1 stop5h 35m
Delta
Thu 5/286:05 am
PHX
- IDA
1 stop3h 42m
Delta
Deal found 5/12![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 5/12. 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.
Fri 5/226:54 pm
IDA
- PHX
2 stops21h 45m
Delta
Fri 5/296:05 am
PHX
- IDA
1 stop3h 42m
Delta
Deal found 5/12![Delta logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
Fri 5/221:50 pm
IDA
- PHX
1 stop5h 02m
Multiple Airlines
Sun 5/3110:27 pm
PHX
- IDA
2 stops18h 22m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$537
This Delta deal was found by Cheapflights users on 5/12. 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 5/233:16 pm
IDA
- PHX
2 stops21h 09m
Delta
Fri 5/295:16 pm
PHX
- IDA
1 stop4h 26m
Delta
Deal found 5/12![Delta logo]()
$380
This United Airlines deal was found by Cheapflights users on 5/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:10 pm
IDA
- PHX
1 stop5h 20m
United Airlines
Wed 5/276:00 am
PHX
- IDA
1 stop6h 25m
United Airlines
Deal found 5/8![United Airlines logo]()
$550
One-way flights from Idaho Falls to PhoenixSearch for one-way flight options from Idaho Falls to Phoenix. Find affordable one-way fares based on user searches. Data last updated May 13, 2026.
Search for one-way flight options from Idaho Falls to Phoenix. Find affordable one-way fares based on user searches. Data last updated May 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/810:56 pm
IDA
- PHX
1 stop12h 57m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 8/310:47 pm
IDA
- PHX
1 stop25h 10m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$89
This Delta deal was found by Cheapflights users on 5/12. 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.
Thu 6/411:30 am
IDA
- PHX
1 stop5h 29m
Delta
Deal found 5/12![Delta logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 8/1010:54 pm
IDA
- PHX
1 stop15h 01m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:43 pm
IDA
- PHX
2 stops26h 00m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/2910:56 pm
IDA
- PHX
2 stops19h 47m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 7/610:47 pm
IDA
- PHX
1 stop15h 08m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$131
Find flight deals from Idaho Falls to Phoenix
Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Phoenix (PH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 13, 2026.
Round-trip from | $191 (Delta) |
|---|---|
One-way from | $79 (Kiwi.com) |
Popular in | May |
Cheapest in | September |
Average price | $544 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho Falls to Phoenix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 13, 2026.
Use the filters below to find and compare flights from Idaho Falls to Phoenix that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Idaho FallsPhoenix
IDA - PHX
IDAPHX
Idaho Falls Fanning Field
Mon 6/1
10:55 am-5:52 pm
1 stop7h 57m
Phoenix Sky Harbor Intl
Thu 6/4
7:40 pm-5:49 pm
2 stops21h 09m
$298
Idaho FallsPhoenix
IDA - PHX
IDAPHX
Idaho Falls Fanning Field
Sat 9/12
4:14 pm-10:32 pm
2 stops7h 18m
Phoenix Sky Harbor Intl
Fri 9/18
5:43 pm-1:06 pm
1 stop18h 23m
$435
Idaho FallsPhoenix
IDA - PHX
IDAPHX
Idaho Falls Fanning Field
Fri 10/23
1:46 pm-9:26 am
2 stops20h 40m
Phoenix Sky Harbor Intl
Mon 10/26
7:24 pm-1:06 pm
2 stops16h 42m
$447
Quickest round-trip
Idaho FallsPhoenix
IDA - PHX
IDAPHX
Idaho Falls Fanning Field
Mon 7/13
7:15 am-1:01 pm
1 stop6h 46m
Phoenix Sky Harbor Intl
Wed 7/15
4:00 pm-10:39 pm
1 stop5h 39m
$453
Idaho FallsPhoenix
IDA - PHX
IDAPHX
Idaho Falls Fanning Field
Tue 6/9
1:54 pm-12:23 pm
2 stops23h 29m
Phoenix Sky Harbor Intl
Tue 6/16
2:37 pm-10:39 pm
1 stop7h 02m
$455
Idaho FallsPhoenix
IDA - PHX
IDAPHX
Idaho Falls Fanning Field
Tue 10/20
6:00 am-9:52 pm
2 stops16h 52m
Phoenix Sky Harbor Intl
Fri 12/4
2:20 pm-6:14 pm
1 stop3h 54m
$473
Idaho FallsPhoenix
IDA - PHX
IDAPHX
Idaho Falls Fanning Field
Fri 10/23
6:45 pm-11:25 am
2 stops17h 40m
Phoenix Sky Harbor Intl
Tue 12/1
6:20 pm-10:19 pm
1 stop3h 59m
$489
Idaho FallsPhoenix
IDA - PHX
IDAPHX
Idaho Falls Fanning Field
Thu 5/28
1:54 pm-6:56 pm
1 stop6h 02m
Phoenix Sky Harbor Intl
Mon 6/1
7:53 pm-10:53 pm
2 stops26h 00m
$512
Cheapest one-way
Idaho FallsPhoenix
IDA - PHX
IDAPHX
Idaho Falls Fanning Field
Fri 11/6
6:45 pm-12:42 am
1 stop5h 57m
$96
Idaho FallsPhoenix
IDA - PHX
IDAPHX
Idaho Falls Fanning Field
Wed 7/8
6:00 am-12:06 am
2 stops19h 06m
$170
Showing 1-10 of 19 resultsSorted by cheapest first
Best time to book a flight from Idaho Falls to Phoenix
Have a flexible travel schedule? Discover the best time to fly to Phoenix from Idaho Falls with our price prediction graph.
IDA-PH1
IDA-PHX
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.
Cheapflights Insights
Everything you need to know about your flight from Idaho Falls to Phoenix
IDA-PH1
IDA-PHX
How far ahead should I book a flight from Idaho Falls to Phoenix?
The price you pay for your flight from Idaho Falls to Phoenix may vary depending on when you book. For the best chance of a lower fare, look to book 55 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Idaho Falls to Phoenix?
Currently, June is the cheapest month in which you can book a flight from Idaho Falls to Phoenix (average of $90). Flying from Idaho Falls to Phoenix in March is currently the most expensive (average of $157). 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 IDA to PHX?
Find hourly flight availability from Idaho Falls to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 13, 2026.
A simple way to save on the total cost of your ticket is to fly from Idaho Falls to Phoenix in the afternoon. If you’re flexible enough to do this you can expect to save up to 50% on your trip compared to booking a flight in the morning.
How much does it cost to fly round-trip from Idaho Falls to Phoenix?
Reviews of airlines servicing Phoenix
Get insights into the airlines that provide service to Phoenix. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phoenix. Reviews last updated May 13, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAllegiant Air from Idaho Falls to Phoenix to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Overall
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Idaho Falls to Phoenix. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Idaho Falls
Popular flights
Alternative routes for Idaho Falls to Phoenix
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Phoenix by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho Falls to Phoenix by cabin class
Find flights from Idaho Falls to Phoenix, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho Falls and Phoenix flights
Browse other Idaho Falls and Phoenix flight options. Last updated on May 13, 2026.
Other flights from Idaho Falls
Browse through other flights departing from Idaho Falls. Flights are based on user searches made on Cheapflights and were last updated on May 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Idaho Falls to Phoenix
Discover the top 4 airlines that operate flights from Idaho Falls to Phoenix. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$110 | Average$176 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$280 | Average$381 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$291 | Average$411 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$308 | Average$458 | FlexibilityNo cancel fee | On-timeN/A |