$193+ Cheap flights from Idaho Falls to Denver (IDA - DEN)
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 12/21. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — DEN
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Idaho Falls to Denver 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.Cheapflights Tip: The best prices from Idaho Falls Fanning Field to Denver Intl are usually found in March or January, booked 90 days in advance, depart on a Thursday or Saturday and return on a Saturday
Cheap flight deals from Idaho Falls to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Idaho Falls to DenverExplore the most affordable flight options available from Idaho Falls to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Idaho Falls to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/34:05 pm -
Nonstop1h 54m
Mon 10/57:05 pm -
Nonstop1h 49m
Deal found 9/8![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:40 pm -
Nonstop1h 50m
Sun 11/298:00 am -
Nonstop1h 53m
Deal found 9/9![United Airlines logo]()
$288
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:05 pm -
Nonstop1h 54m
Sun 10/41:40 pm -
Nonstop1h 44m
Deal found 9/7![United Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/6. 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 9/295:51 pm -
Nonstop1h 52m
Tue 10/68:05 am -
Nonstop1h 48m
Deal found 9/6![United Airlines logo]()
$308
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:40 pm -
Nonstop1h 50m
Sun 11/298:00 am -
Nonstop1h 53m
Deal found 9/9![United Airlines logo]()
$310
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 10/134:05 pm -
Nonstop1h 52m
Mon 10/198:05 am -
Nonstop1h 48m
Deal found 9/8![United Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/5. 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 9/235:53 pm -
Nonstop1h 52m
Mon 9/288:05 am -
Nonstop1h 48m
Deal found 9/5![United Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 9/162:25 pm -
Nonstop1h 50m
Wed 9/238:05 am -
Nonstop1h 46m
Deal found 9/8![United Airlines logo]()
$339
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:43 pm -
1 stop20h 24m
Sat 11/142:14 pm -
1 stop17h 58m
Deal found 9/7![Multiple Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:00 am -
1 stop3h 50m
Mon 10/51:00 pm -
1 stop5h 17m
Deal found 9/8![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/305:40 pm -
Nonstop1h 50m
Sat 10/311:50 pm -
Nonstop1h 48m
Deal found 9/8![United Airlines logo]()
$349
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:04 pm -
Nonstop1h 54m
Mon 9/217:29 pm -
Nonstop1h 49m
Deal found 9/7![United Airlines logo]()
$359
Best flights from Idaho Falls to DenverDiscover carefully curated flight deals from Idaho Falls to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Idaho Falls to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/82:28 pm -
Nonstop1h 50m
Sat 10/108:05 am -
Nonstop1h 48m
Deal found 9/9![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:59 pm -
1 stop4h 15m
Mon 12/76:11 pm -
1 stop3h 56m
Deal found 9/9![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/277:00 am -
Nonstop1h 46m
Sat 1/28:15 am -
Nonstop1h 51m
Deal found 9/9![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:40 pm -
Nonstop1h 50m
Sun 11/298:00 am -
Nonstop1h 53m
Deal found 9/9![United Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 11/32:35 pm -
Nonstop1h 45m
Mon 11/911:46 am -
Nonstop1h 42m
Deal found 9/8![United Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/25:51 pm -
Nonstop1h 52m
Sun 10/48:05 am -
Nonstop1h 48m
Deal found 9/8![United Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/5. 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 9/235:53 pm -
Nonstop1h 52m
Mon 9/288:05 am -
Nonstop1h 48m
Deal found 9/5![United Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:28 pm -
Nonstop1h 50m
Fri 10/911:45 am -
Nonstop1h 39m
Deal found 9/9![United Airlines logo]()
$349
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:40 pm -
Nonstop1h 50m
Sun 11/18:00 am -
Nonstop1h 53m
Deal found 9/7![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Fri 12/257:00 am -
Nonstop1h 46m
Wed 12/307:35 pm -
Nonstop1h 44m
Deal found 9/6![United Airlines logo]()
$369
Last-minute flights from Idaho Falls to DenverDiscover last-minute flight deals from Idaho Falls to Denver. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Denver. Data last updated September 10, 2026 and is based on user searches.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:04 pm -
Nonstop1h 54m
Mon 9/217:29 pm -
Nonstop1h 49m
Deal found 9/7![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 9/162:25 pm -
Nonstop1h 50m
Wed 9/238:05 am -
Nonstop1h 46m
Deal found 9/8![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/5. 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 9/235:53 pm -
Nonstop1h 52m
Mon 9/288:05 am -
Nonstop1h 48m
Deal found 9/5![United Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/6. 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 9/295:51 pm -
Nonstop1h 52m
Tue 10/68:05 am -
Nonstop1h 48m
Deal found 9/6![United Airlines logo]()
$308
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:28 pm -
Nonstop1h 50m
Wed 10/78:05 am -
Nonstop1h 48m
Deal found 9/7![United Airlines logo]()
$299
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:28 pm -
Nonstop1h 50m
Fri 10/911:45 am -
Nonstop1h 39m
Deal found 9/7![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/34:05 pm -
Nonstop1h 54m
Mon 10/57:05 pm -
Nonstop1h 49m
Deal found 9/8![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:00 am -
1 stop3h 50m
Mon 10/51:00 pm -
1 stop5h 17m
Deal found 9/8![Delta logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/910:49 pm -
1 stop11h 00m
Sun 10/1110:45 pm -
1 stop15h 54m
Deal found 9/9![Multiple Airlines logo]()
$360
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 10/134:05 pm -
Nonstop1h 52m
Mon 10/198:05 am -
Nonstop1h 48m
Deal found 9/8![United Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/305:40 pm -
Nonstop1h 50m
Sat 10/311:50 pm -
Nonstop1h 48m
Deal found 9/8![United Airlines logo]()
$349
One-way flights from Idaho Falls to DenverSearch for one-way flight options from Idaho Falls to Denver. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Idaho Falls to Denver. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 12/217:49 pm -
1 stop13h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 12/2511:25 am -
1 stop21h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$218
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/63:58 pm -
2 stops30h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Alaska Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:00 am -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$259
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:56 pm -
1 stop3h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Fri 9/186:51 pm -
2 stops13h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 9/5. 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 10/156:00 am -
1 stop5h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Delta logo]()
$279
This deal was found by Cheapflights users on 9/5. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/292:28 pm -
Nonstop1h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$289
Find flight deals from Idaho Falls to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Denver (DEN). 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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $279 (United Airlines) |
One-way from | $193 (Kiwi.com) |
Popular in | July |
Cheapest in | March |
Average price | $304 |
Good round-trip deal | $401 or less |
Good one-way deal | $274 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho Falls to Denver 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 10, 2026.
Use the filters below to find and compare flights from Idaho Falls to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Mon 12/21
7:49 pm-9:04 am
1 stop13h 15m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$193
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Sat 2/6
3:58 pm-10:15 pm
2 stops30h 17m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$235
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Fri 12/25
11:25 am-9:04 am
2 stops21h 39m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$255
Quickest round-trip
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Fri 12/25
2:37 pm-4:20 pm
Nonstop1h 43m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$259
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Mon 12/21
7:00 am-8:46 am
Nonstop1h 46m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$269
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Sat 2/6
4:17 pm-6:11 pm
Nonstop1h 54m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$269
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Thu 10/15
6:00 am-11:56 am
1 stop5h 56m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$279
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Thu 1/14
4:17 pm-6:11 pm
Nonstop1h 54m
Denver Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$279
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Thu 10/8
2:28 pm-4:18 pm
Nonstop1h 50m
Denver Intl
Sat 10/10
8:05 am-9:53 am
Nonstop1h 48m
$279
Idaho FallsDenver
IDA Idaho Falls Fanning Field - DEN Denver Intl
IDADEN
Idaho Falls Fanning Field
Sun 12/27
7:00 am-8:46 am
Nonstop1h 46m
Denver Intl
Sat 1/2
8:15 am-10:06 am
Nonstop1h 51m
$279
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Idaho Falls to Denver
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 Denver in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Idaho Falls-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Idaho Falls-Denver 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-Denver 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 Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Idaho Falls with our price prediction graph.
IDA-DEN
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 Denver
Prices
Airlines
How far ahead should I book a flight from Idaho Falls to Denver?
The price you pay for your flight from Idaho Falls to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 33 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 Denver?
Currently, March is the cheapest month in which you can book a flight from Idaho Falls to Denver (average of $220). Flying from Idaho Falls to Denver in July is currently the most expensive (average of $407). 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 DEN?
Find hourly flight availability from Idaho Falls to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 10, 2026.
When flying from Idaho Falls to Denver, 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 33% versus a flight in the morning.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated September 10, 2026.
Get a feel of what it's like to fly with United Airlines from Idaho Falls to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Food
6.6
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Overall
7.4
Food
6.6
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from Idaho Falls to Denver. 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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Book flights to Denver if you plan to visit one of these locationsThornton
Westminster
Lakewood
Centennial
Black Hawk
Broomfield
Golden
Wheat Ridge
Silverthorne
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Fort Morgan
Greeley
Cripple Creek
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Limon
Frisco
Manitou Springs
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Glendale
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$189 | Average$294 | FlexibilityNo cancel fee | On-time69% |