$122+ Cheap flights from Denver to Idaho Falls (DEN - 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IDA
Oct 4 — Oct 111
Round-trip
1 adult, Economy
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Find cheap flights from Denver 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
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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.Cheap flight deals from Denver to Idaho Falls
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Best
Last-minute
One-way
Cheapest flights from Denver to Idaho FallsExplore the most affordable flight options available from Denver to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 4, 2026.
Explore the most affordable flight options available from Denver to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Thu 10/11:10 pm -
2 stops26h 50m
Mon 10/57:42 pm -
1 stop14h 25m
Deal found 9/3![Multiple Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/111:45 am -
Nonstop1h 39m
Wed 10/74:05 pm -
Nonstop1h 52m
Deal found 9/1![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/13:35 pm -
Nonstop1h 41m
Sun 10/42:28 pm -
Nonstop1h 50m
Deal found 9/2![United Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/2511:45 am -
Nonstop1h 39m
Mon 9/284:05 pm -
Nonstop1h 54m
Deal found 9/3![United Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 8/30. 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.
Tue 10/138:20 am -
1 stop4h 02m
Sat 10/176:00 am -
1 stop3h 45m
Deal found 8/30![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/181:39 pm -
Nonstop1h 44m
Tue 9/224:04 pm -
Nonstop1h 54m
Deal found 9/3![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/711:45 am -
Nonstop1h 39m
Sun 10/114:05 pm -
Nonstop1h 54m
Deal found 9/2![United Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 10/57:00 am -
1 stop10h 40m
Fri 10/910:49 pm -
2 stops18h 45m
Deal found 9/2![Multiple Airlines logo]()
$320
This United Airlines deal was found by Cheapflights users on 9/1. 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 9/263:35 pm -
Nonstop1h 41m
Tue 10/1310:35 am -
Nonstop1h 54m
Deal found 9/1![United Airlines logo]()
$322
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/2411:45 am -
Nonstop1h 39m
Sun 9/275:51 pm -
Nonstop1h 52m
Deal found 9/3![United Airlines logo]()
$323
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Mon 9/147:29 pm -
Nonstop1h 49m
Wed 10/74:05 pm -
Nonstop1h 52m
Deal found 9/1![United Airlines logo]()
$324
Best flights from Denver to Idaho FallsDiscover carefully curated flight deals from Denver to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
Discover carefully curated flight deals from Denver to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/111:45 am -
Nonstop1h 39m
Wed 10/74:05 pm -
Nonstop1h 52m
Deal found 9/1![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/151:40 pm -
Nonstop1h 44m
Sat 10/174:05 pm -
Nonstop1h 54m
Deal found 9/2![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/28:05 am -
Nonstop1h 48m
Sun 10/42:28 pm -
Nonstop1h 50m
Deal found 9/3![United Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 9/1. 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 9/263:35 pm -
Nonstop1h 41m
Mon 10/124:05 pm -
Nonstop1h 54m
Deal found 9/1![United Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/28:05 am -
Nonstop1h 48m
Mon 10/54:05 pm -
Nonstop1h 54m
Deal found 9/3![United Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 8/30. 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 12/2311:45 am -
Nonstop1h 43m
Sun 12/277:00 am -
Nonstop1h 46m
Deal found 8/30![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/298:00 am -
Nonstop1h 53m
Mon 11/24:30 pm -
Nonstop1h 50m
Deal found 9/2![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/158:05 am -
Nonstop1h 48m
Mon 10/194:05 pm -
Nonstop1h 54m
Deal found 9/1![United Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/1711:50 am -
Nonstop1h 39m
Mon 9/214:04 pm -
Nonstop1h 54m
Deal found 9/2![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/11:40 pm -
Nonstop1h 44m
Mon 10/52:28 pm -
Nonstop1h 50m
Deal found 9/3![United Airlines logo]()
$424
Last-minute flights from Denver to Idaho FallsDiscover last-minute flight deals from Denver to Idaho Falls. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Idaho Falls. Data last updated September 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Mon 9/147:29 pm -
Nonstop1h 49m
Wed 10/74:05 pm -
Nonstop1h 52m
Deal found 9/1![United Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/181:39 pm -
Nonstop1h 44m
Tue 9/224:04 pm -
Nonstop1h 54m
Deal found 9/3![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/2411:45 am -
Nonstop1h 39m
Sun 9/275:51 pm -
Nonstop1h 52m
Deal found 9/3![United Airlines logo]()
$323
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/2511:45 am -
Nonstop1h 39m
Mon 9/284:05 pm -
Nonstop1h 54m
Deal found 9/3![United Airlines logo]()
$292
This United Airlines deal was found by Cheapflights users on 9/1. 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 9/263:35 pm -
Nonstop1h 41m
Tue 10/1310:35 am -
Nonstop1h 54m
Deal found 9/1![United Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Thu 10/11:10 pm -
2 stops26h 50m
Mon 10/57:42 pm -
1 stop14h 25m
Deal found 9/3![Multiple Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/18:05 am -
Nonstop1h 48m
Thu 10/84:05 pm -
Nonstop1h 54m
Deal found 9/1![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/13:35 pm -
Nonstop1h 41m
Sun 10/42:28 pm -
Nonstop1h 50m
Deal found 9/2![United Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 10/57:00 am -
1 stop10h 40m
Fri 10/910:49 pm -
2 stops18h 45m
Deal found 9/2![Multiple Airlines logo]()
$320
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/711:45 am -
Nonstop1h 39m
Sun 10/114:05 pm -
Nonstop1h 54m
Deal found 9/2![United Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 8/30. 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.
Tue 10/138:20 am -
1 stop4h 02m
Sat 10/176:00 am -
1 stop3h 45m
Deal found 8/30![Delta logo]()
$299
One-way flights from Denver to Idaho FallsSearch for one-way flight options from Denver to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
Search for one-way flight options from Denver to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Wed 11/410:37 pm -
1 stop9h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Thu 10/159:00 am -
2 stops31h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Wed 10/710:47 pm -
1 stop10h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Thu 10/81:10 pm -
2 stops26h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$173
This Delta deal was found by Cheapflights users on 8/31. 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.
Tue 9/151:00 pm -
1 stop5h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Delta logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Sat 9/1210:47 pm -
1 stop20h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$206
This Delta deal was found by Cheapflights users on 9/3. 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 10/246:00 pm -
1 stop4h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/237:00 am -
1 stop6h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$223
Find flight deals from Denver to Idaho Falls
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $271 (Kiwi.com) |
One-way from | $122 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $267 |
Good round-trip deal | $267 or less |
Good one-way deal | $325 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver 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 4, 2026.
Use the filters below to find and compare flights from Denver to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Thu 1/14
3:40 pm-10:19 pm
1 stop6h 39m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$179
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Tue 9/15
1:00 pm-6:17 pm
1 stop5h 17m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$179
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Fri 10/23
7:00 am-1:34 pm
1 stop6h 34m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$223
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Mon 10/26
12:31 pm-3:20 pm
2 stops26h 49m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$235
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Fri 10/23
9:45 am-3:20 pm
2 stops29h 35m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$235
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Thu 10/8
7:05 pm-8:54 pm
Nonstop1h 49m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$259
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Fri 10/23
1:40 pm-3:24 pm
Nonstop1h 44m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$259
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Thu 10/15
7:05 pm-8:54 pm
Nonstop1h 49m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$259
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Sun 10/25
6:00 pm-10:10 pm
1 stop4h 10m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$269
DenverIdaho Falls
DEN Denver Intl - IDA Idaho Falls Fanning Field
DENIDA
Denver Intl
Sun 10/25
7:15 pm-9:09 pm
Nonstop1h 54m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$279
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Denver 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 Denver to Idaho Falls in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Denver-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Idaho Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-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 Denver-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 Denver to Idaho Falls
Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Denver with our price prediction graph.
DEN-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.
Cheapflights Insights
Everything you need to know about your flight from Denver to Idaho Falls
Prices
Airlines
What is the cheapest month to book a flight from Denver to Idaho Falls?
Currently, January is the cheapest month in which you can book a flight from Denver to Idaho Falls (average of $220). Flying from Denver to Idaho Falls in June is currently the most expensive (average of $448). 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 DEN to IDA?
Find hourly flight availability from Denver 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 September 4, 2026.
It’s typically best to fly out from Denver to Idaho Falls in the evening. Doing so could potentially save you 29% on the flight price compared to flying at noon, which is usually more expensive.
What is the cheapest day to fly from Denver to Idaho Falls?
Use this chart to determine the cheapest time to fly round-trip from Denver to Idaho Falls. Price data was last updated on August 29, 2026.
Travelers seeking maximum savings on their Denver to Idaho Falls flight should consider departing on Wednesday evenings 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.
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 4, 2026.
Read reviews from past customers who have flown United Airlines from Denver to Idaho Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Food
6.7
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
10.0
ExcellentMichelle,Dec 2025
DEN - MKE
Comfort
7.3
Food
6.7
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
10.0
ExcellentMichelle,Dec 2025
DEN - MKE
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$189 | Average$328 | FlexibilityNo cancel fee | On-time69% |