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Cheap flights from Phoenix-Mesa Gateway (AZA) to Idaho Falls (IDA)

AZA — IDA
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Phoenix-Mesa Gateway to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix-Mesa Gateway (AZA) to Idaho Falls (IDA). 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 August 14, 2025.

Popular in

July

Cheapest in

May

Average price

$157

Good round-trip deal

$164 or less

Good one-way deal

$88 or less
Highest demand for flights based on searches. 5% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Phoenix-Mesa Gateway to Idaho Falls Fanning Field.
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Price to beat on a one-way flight from Phoenix-Mesa Gateway to Idaho Falls Fanning Field.
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Best time to book a flight from Phoenix-Mesa Gateway to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Phoenix-Mesa Gateway 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.

Cheapflights Insights

Everything you need to know about your flight from Phoenix-Mesa Gateway Airport to Idaho Falls

What is the cheapest month to book a flight from Phoenix-Mesa Gateway Airport to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from Phoenix-Mesa Gateway Airport to Idaho Falls (average of $380). Flying from Phoenix-Mesa Gateway Airport to Idaho Falls in December is currently the most expensive (average of $578). 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 AZA to IDA?

Find hourly flight availability from Phoenix-Mesa Gateway to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

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

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Idaho Falls. Reviews last updated August 14, 2025.
See what other customers who have flown with Allegiant Air from Phoenix-Mesa Gateway Airport to Idaho Falls have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Allegiant Air
7.2
Good
701 reviews

Overall

7.2

Entertainment

5.5

Comfort

6.8

Boarding

7.6

Crew

8.1

Food

5.9

Reviews

1 / 20
10.0
Excellent

Joellen,Aug 2024

LAS - GEG

Boarding was a hassle. I’ve had the same guy before. Never enjoy seeing him.
Allegiant Air
7.2
Good
701 reviews
Allegiant Air
7.2
Good
701 reviews

Overall

7.2

Entertainment

5.5

Comfort

6.8

Boarding

7.6

Crew

8.1

Food

5.9

Reviews

1 / 20
10.0
Excellent

Joellen,Aug 2024

LAS - GEG

Boarding was a hassle. I’ve had the same guy before. Never enjoy seeing him.

Related info for your journey

Find useful and relevant information for your journey from Phoenix-Mesa Gateway to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Idaho Falls Fanning Field (IDA) is the airport you will fly into if you book a flight from Phoenix-Mesa Gateway to Idaho Falls. You should not have trouble finding flights to Fanning Field from Phoenix-Mesa Gateway; the airport handles an average of 0 inbound flights from Phoenix-Mesa Gateway per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Idaho Falls airport from Phoenix-Mesa Gateway. It is only a 3.8 mi journey from Fanning Field (IDA) to Idaho Falls’s city center.

  • What is the cheapest airline to fly from Phoenix-Mesa Gateway Airport to Idaho Falls round-trip?

    Currently priced at $100, Allegiant Air will fly you from Phoenix-Mesa Gateway Airport to Idaho Falls and back. In addition to Allegiant Air, many other airlines offer competitively priced options for your trip. Allegiant Air is 53% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from Phoenix-Mesa Gateway 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-Mesa Gateway to Idaho Falls.

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

    Yes. Cheapflights offers flight deals from Phoenix-Mesa Gateway 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-Mesa Gateway Airport to Idaho Falls?

    Currently, October is the cheapest month in which you can book a flight from Phoenix-Mesa Gateway Airport to Idaho Falls (average of $380). Flying from Phoenix-Mesa Gateway Airport to Idaho Falls in December is currently the most expensive (average of $578). 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.

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Top airline flying from Phoenix-Mesa Gateway to Idaho Falls

Discover the top airline that operate flights from Phoenix-Mesa Gateway to Idaho Falls. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$100Average$194FlexibilityNo cancel feeOn-time88%

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