$538+ Cheap flights from Idaho Falls to Flagstaff (IDA - FLG)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — FLG
Oct 7 — Oct 141
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 Flagstaff 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 Flagstaff
Cheapest
Best
One-way
Cheapest flights from Idaho Falls to FlagstaffExplore the most affordable flight options available from Idaho Falls to Flagstaff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
Explore the most affordable flight options available from Idaho Falls to Flagstaff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/245:50 pm -
1 stop5h 54m
Thu 12/3111:46 am -
1 stop5h 34m
Deal found 9/7![American Airlines logo]()
$538
Best flights from Idaho Falls to FlagstaffDiscover carefully curated flight deals from Idaho Falls to Flagstaff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
Discover carefully curated flight deals from Idaho Falls to Flagstaff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/245:50 pm -
1 stop5h 54m
Thu 12/3111:46 am -
1 stop5h 34m
Deal found 9/7![American Airlines logo]()
$538
One-way flights from Idaho Falls to FlagstaffSearch for one-way flight options from Idaho Falls to Flagstaff. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Idaho Falls to Flagstaff. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:00 am -
2 stops11h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$578
Find flight deals from Idaho Falls to Flagstaff
Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Flagstaff (FLG). 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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $538 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho Falls to Flagstaff 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 7,457,451 searches. Data last updated September 7, 2026.
Use the filters below to find and compare flights from Idaho Falls to Flagstaff that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Idaho FallsFlagstaff
IDA Idaho Falls Fanning Field - FLG Flagstaff Pulliam
IDAFLG
Idaho Falls Fanning Field
Thu 12/24
5:50 pm-11:44 pm
1 stop5h 54m
Flagstaff Pulliam
Thu 12/31
11:46 am-5:20 pm
1 stop5h 34m
$538
Idaho FallsFlagstaff
IDA Idaho Falls Fanning Field - FLG Flagstaff Pulliam
IDAFLG
Idaho Falls Fanning Field
Sun 10/4
7:00 am-5:44 pm
2 stops11h 44m
Flagstaff Pulliam
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$578
Sorted by cheapest first
Compare providers for flights from Idaho Falls to Flagstaff
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls to Flagstaff in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Idaho Falls-Flagstaff flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Flagstaff flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Flagstaff flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Idaho Falls-Flagstaff flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Idaho Falls-Flagstaff flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Idaho Falls to Flagstaff
Have a flexible travel schedule? Discover the best time to fly to Flagstaff from Idaho Falls with our price prediction graph.
IDA-FLG
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.
Reviews of airlines servicing Flagstaff
Get insights into the airlines that provide service to Flagstaff. 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 Flagstaff. Reviews last updated September 7, 2026.
Read through reviews of airlines operating flights from Idaho Falls to Flagstaff, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.5
Overall
7.1
Crew
7.9
Entertainment
6.8
Comfort
7.2
Food
6.4
Reviews
1 / 20
6.0
GoodKristin,Jul 2026
DCA - PHX
Boarding
7.5
Overall
7.1
Crew
7.9
Entertainment
6.8
Comfort
7.2
Food
6.4
Reviews
1 / 20
6.0
GoodKristin,Jul 2026
DCA - PHX
Related info for your journey
Find useful and relevant information for your journey from Idaho Falls to Flagstaff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Flagstaff?
Book flights to Flagstaff if you plan to visit one of these locationsWilliams
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 Flagstaff
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Flagstaff by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho Falls to Flagstaff by cabin class
Find flights from Idaho Falls to Flagstaff, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho Falls and Flagstaff flights
Browse other Idaho Falls and Flagstaff flight options. Last updated on September 7, 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 September 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Idaho Falls to Flagstaff
Discover the top airline that operate flights from Idaho Falls to Flagstaff. 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 September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$465 | Average$595 | FlexibilityNo cancel fee | On-time71% |