Your next trip, last seen at €78
Lowest observedFrontier Airlines · 2 stops · One wayWhen to fly
Explore datesFind the dates that work for you
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.
Short answer
We have seen United Airlines fares from Boise to Denver, non-stop. The lowest fare our own searches returned is €78, seen on 30 Sep 2026. The average across the fares we caught is €135. October 2026 is the cheapest month in our observations, at €78. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.
Short answer
We have seen United Airlines fares from Boise to Denver, non-stop. The lowest fare our own searches returned is €78, seen on 30 Sep 2026. The average across the fares we caught is €135. October 2026 is the cheapest month in our observations, at €78. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.
About this route
Explore the fares we observed from Boise to Denver. Prices move often, so pick your dates to see the latest options.
- Route distance
- 1,025 km
- Reported fastest flight
- 1h 45m
- Airlines seen
- United Airlines, Southwest Airlines, Alaska Airlines, American Airlines, Delta Air Lines, Frontier Airlines
- Alternative airports
- APA
Route-level information; individual journeys vary.
Published schedules report non-stop service with United Airlines, Southwest Airlines. Check current timetables.
A clearer picture of your fare
Frequently asked
How much is a flight from Boise to Denver?
The lowest fare we have observed is €78, found on 30 Sep 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Boise to Denver?
In our observations October 2026 is the cheapest month so far, at €78.
Are there direct flights from Boise to Denver?
Yes. We have seen non-stop flights on this route, flown by United Airlines, Southwest Airlines.
Which airlines fly from Boise to Denver?
These are the carriers we have seen on the route: United Airlines, Southwest Airlines.
How long does the flight from Boise to Denver take?
The average journey time across the 91 fares we observed is 5h 15m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Boise to Denver fares were non-stop?
39 of the 91 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
Keep exploring
Similar routes
Airlines on this route
More routes from Boise
Show all 30 routes →Show fewer ↑
More routes to Denver
Show all 30 routes →Show fewer ↑
Recently observed fares. Prices may change.
Last checked: 8 Oct 2026