Your next trip, last seen at €108
Lowest observedAllegiant Air · 2 stops · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €108, departing 8 Feb 2027 (Last checked: 6 Nov 2026)One-way fareCheck live prices for this route
- Airlines seen
- United Airlines, Air Canada, Alaska Airlines, Allegiant Air, American Airlines, Delta Air Lines, Frontier Airlines, Viva Aerobus (8)
- Fastest observed flight time
- 1h 43m
- Non-stop
- Yes
About this route
Explore the fares we observed from Idaho Falls to Denver. Prices move often, so pick your dates to see the latest options.
- Route distance
- 719 km
- Fastest observed flight time
- 1h 43m
- Airlines seen
- United Airlines, Air Canada, Alaska Airlines, Allegiant Air, American Airlines, Delta Air Lines, Frontier Airlines, Viva Aerobus (8)
- Alternative airports
- APA
Route-level information; individual journeys vary.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- Idaho Falls Regional Airport (IDA) → Idaho Falls, city gazetteer reference point (43.4927, -112.0408): ≈ 3 km.
- Denver International Airport (DEN) → Denver, city gazetteer reference point (39.7392, -104.9847): ≈ 30 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Observed fares by departure date
| Departure | Fare | Seen on |
|---|---|---|
| €174 | 6 Nov 2026 | |
| €142 | 6 Nov 2026 | |
| €166 | 6 Nov 2026 | |
| €167 | 6 Nov 2026 | |
| €143 | 6 Nov 2026 | |
| €111 | 6 Nov 2026 | |
| €148 | 6 Nov 2026 | |
| €109 | 6 Nov 2026 | |
| €131 | 6 Nov 2026 | |
| €141 | 6 Nov 2026 | |
| €120 | 6 Nov 2026 | |
| €133 | 6 Nov 2026 | |
| €135 | 6 Nov 2026 | |
| €151 | 6 Nov 2026 | |
| €108 | 6 Nov 2026 | |
| €172 | 6 Nov 2026 | |
| €131 | 6 Nov 2026 | |
| €139 | 6 Nov 2026 | |
| €112 | 6 Nov 2026 | |
| €152 | 6 Nov 2026 |
One-way fares. Each row is one price we saw for that departure day on the date shown, not a guaranteed fare.
Frequently asked
How much is a flight from Idaho Falls to Denver?
The lowest fare Routavio has observed is €108, found on 6 Nov 2026.
Are there direct flights from Idaho Falls to Denver?
Yes. Published schedules report non-stop flights on this route with United Airlines.
Which airlines fly from Idaho Falls to Denver?
Routavio has seen these carriers on the route: United Airlines, Air Canada, Alaska Airlines, Allegiant Air, American Airlines, Delta Air Lines, Frontier Airlines, Viva Aerobus (8).
How long does the flight from Idaho Falls to Denver take?
Across the 107 fares Routavio observed, the average journey time is 19h 42m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Idaho Falls to Denver fares were non-stop?
17 of the 107 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.