$566+ Cheap flights from Greenville to Idaho Falls (GSP - IDA)
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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — IDA
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Greenville to Idaho Falls 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 Greenville to Idaho Falls
Cheapest
Best
Last-minute
Cheapest flights from Greenville to Idaho FallsExplore the most affordable flight options available from Greenville to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
Explore the most affordable flight options available from Greenville to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:25 pm -
1 stop6h 29m
Sat 10/37:00 am -
1 stop6h 08m
Deal found 9/13![United Airlines logo]()
$566
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:25 pm -
1 stop6h 29m
Sat 10/177:00 am -
2 stops11h 58m
Deal found 9/11![United Airlines logo]()
$684
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:00 am -
1 stop7h 09m
Sat 10/171:39 pm -
1 stop6h 26m
Deal found 9/11![American Airlines logo]()
$747
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:01 am -
1 stop9h 19m
Sun 10/181:39 pm -
1 stop6h 26m
Deal found 9/11![American Airlines logo]()
$818
Best flights from Greenville to Idaho FallsDiscover carefully curated flight deals from Greenville to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Greenville to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/66:30 am -
2 stops9h 05m
Sat 1/97:00 am -
2 stops14h 19m
Deal found 9/13![United Airlines logo]()
$569
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:00 am -
1 stop7h 09m
Sat 10/171:39 pm -
1 stop6h 26m
Deal found 9/11![American Airlines logo]()
$747
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:30 am -
2 stops11h 24m
Sat 10/37:00 am -
1 stop6h 08m
Deal found 9/13![United Airlines logo]()
$571
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:25 pm -
1 stop6h 29m
Sat 10/177:00 am -
2 stops11h 58m
Deal found 9/11![United Airlines logo]()
$684
Last-minute flights from Greenville to Idaho FallsDiscover last-minute flight deals from Greenville to Idaho Falls. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Greenville to Idaho Falls. Data last updated September 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:25 pm -
1 stop6h 29m
Sat 10/37:00 am -
1 stop6h 08m
Deal found 9/13![United Airlines logo]()
$566
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:25 pm -
1 stop6h 29m
Sat 10/177:00 am -
2 stops11h 58m
Deal found 9/11![United Airlines logo]()
$684
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:00 am -
1 stop7h 09m
Sat 10/171:39 pm -
1 stop6h 26m
Deal found 9/11![American Airlines logo]()
$747
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:01 am -
1 stop9h 19m
Sun 10/181:39 pm -
1 stop6h 26m
Deal found 9/11![American Airlines logo]()
$818
Find flight deals from Greenville to Idaho Falls
Discover tips and strategies to find the most affordable flight options for your journey from Greenville (GSP) 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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $524 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Greenville to Idaho Falls 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 15, 2026.
Use the filters below to find and compare flights from Greenville to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
GreenvilleIdaho Falls
GSP Greenville - IDA Idaho Falls Fanning Field
GSPIDA
Greenville
Wed 1/6
6:30 am-1:35 pm
2 stops9h 05m
Idaho Falls Fanning Field
Sat 1/9
7:00 am-11:19 pm
2 stops14h 19m
$569
GreenvilleIdaho Falls
GSP Greenville - IDA Idaho Falls Fanning Field
GSPIDA
Greenville
Tue 9/29
11:30 am-8:54 pm
2 stops11h 24m
Idaho Falls Fanning Field
Sat 10/3
7:00 am-3:08 pm
1 stop6h 08m
$571
GreenvilleIdaho Falls
GSP Greenville - IDA Idaho Falls Fanning Field
GSPIDA
Greenville
Sat 10/10
4:25 pm-8:54 pm
1 stop6h 29m
Idaho Falls Fanning Field
Sat 10/17
7:00 am-8:58 pm
2 stops11h 58m
$684
Quickest round-trip
GreenvilleIdaho Falls
GSP Greenville - IDA Idaho Falls Fanning Field
GSPIDA
Greenville
Sat 10/10
8:00 am-1:09 pm
1 stop7h 09m
Idaho Falls Fanning Field
Sat 10/17
1:39 pm-10:05 pm
1 stop6h 26m
$747
Sorted by cheapest first
Compare providers for flights from Greenville to Idaho Falls
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 Greenville to Idaho Falls 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 Greenville-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Greenville-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Greenville-Idaho Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Greenville-Idaho Falls 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 Greenville-Idaho Falls 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 Greenville to Idaho Falls
Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Greenville with our price prediction graph.
GSP-IDA
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 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 September 15, 2026.
Peruse reviews from past customers who have flown with American Airlines from Greenville to Idaho Falls 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
7.2
Food
6.4
Boarding
7.4
Entertainment
6.8
Overall
7.1
Crew
7.9
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Comfort
7.2
Food
6.4
Boarding
7.4
Entertainment
6.8
Overall
7.1
Crew
7.9
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Related info for your journey
Find useful and relevant information for your journey from Greenville to Idaho Falls. 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 Idaho Falls?
Book flights to Idaho Falls if you plan to visit one of these locationsRexburg
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Top airline flying from Greenville to Idaho Falls
Discover the top airline that operate flights from Greenville 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$394 | Average$544 | FlexibilityNo cancel fee | On-time71% |