Cheap flights from Idaho to Phoenix
BOI — PHX
Nov 19 — Nov 261
Round-trip
1 adult, Economy
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1. Tell us where you want to go
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Find flight deals from Idaho to Phoenix
Keep the following information in mind while searching for Idaho to Phoenix flight deals. Data was last updated October 20, 2026.
Popular in | June |
|---|---|
Cheapest in | January |
Average price | $299 |
Cheapflights Insights
Everything you need to know about your flight from Idaho to Phoenix
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How far ahead should I book a flight from Idaho to Phoenix?
The best time to book flights from Idaho to Phoenix is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Idaho to Phoenix?
Currently, January is the cheapest month in which you can book a flight from Idaho to Phoenix (average of $267). Flying from Idaho to Phoenix in June is currently the most expensive (average of $376). 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 ID to PHX?
Find hourly flight availability from Idaho 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 October 20, 2026.
When flying from Idaho to Phoenix, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 42% versus a flight at noon.
What is the cheapest day to fly from Idaho to Phoenix?
Use this chart to determine the cheapest time to fly round-trip from Idaho to Phoenix. Price data was last updated on October 17, 2026.
Travelers seeking maximum savings on their Idaho to Phoenix flight should consider departing on Saturday mornings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Idaho to Phoenix. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Idaho 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 to Phoenix by cabin class
Find flights from Idaho to Phoenix, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Phoenix flights
Browse other Idaho and Phoenix flight options. Last updated on October 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Idaho to Phoenix flights
Consider these flights traveling from Idaho to Phoenix.
Top 8 airlines flying from Idaho to Phoenix
Discover the top 8 airlines that operate flights from Idaho 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 7,457,451 searches. Data last updated October 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$85 | Average$216 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$98 | Average$383 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$111 | Average$287 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$116 | Average$273 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$303 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$176 | Average$388 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$177 | Average$304 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$310 | Average$389 | FlexibilityNo cancel fee | On-time69% |