Boise to Denver (BOI-DEN): nonstop flights and who flies them

United Airlines and Frontier Airlines fly nonstop between Boise (BOI) and Denver (DEN), roughly 45 times a week. With United Airlines running most of the schedule, the shape of a week is predictable, which makes an open premium seat on a given date easy to spot and quick to lose. United Airlines and Frontier Airlines fly the route nonstop in 2LNR's schedule data; the timetable and the reverse direction are below.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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45
Nonstop flights a week
647 mi
Nonstop distance
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Boise to Denver flight schedule

Scheduled nonstop departures for BOI to DEN, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Boise (BOI) to Denver (DEN)
Date Flight Airline Departs BOI Arrives DEN Duration Aircraft
UA 5924United Airlines05:0007:102h 10mE7W
UA 1782United Airlines06:3008:312h 1m738
UA 6041United Airlines10:2012:272h 7mE7W
UA 1139United Airlines10:3112:332h 2m319
F9 3934Frontier Airlines13:2415:302h 6m32Q
UA 2173United Airlines14:4116:422h 1m739
UA 2395United Airlines17:4419:452h 1m738
UA 5924United Airlines05:0007:102h 10mE7W
UA 1782United Airlines06:3008:312h 1m738
UA 6041United Airlines10:2012:272h 7mE7W
UA 1139United Airlines10:3112:332h 2m319
UA 2173United Airlines14:4416:452h 1m739
UA 2395United Airlines17:4419:452h 1m738
UA 5924United Airlines05:0007:102h 10mE7W
UA 1782United Airlines06:3008:312h 1m738
UA 6041United Airlines10:2012:272h 7mE7W
UA 1139United Airlines10:3112:332h 2m319
F9 3934Frontier Airlines12:5915:002h 1m32N
UA 2173United Airlines14:4416:452h 1m739
UA 2395United Airlines17:4419:452h 1m738
UA 5924United Airlines05:0007:102h 10mE7W
UA 1782United Airlines06:3008:312h 1m738
UA 6041United Airlines10:2012:272h 7mE7W
UA 1139United Airlines10:3112:332h 2m319
UA 2173United Airlines14:4116:422h 1m739
UA 2395United Airlines17:4419:452h 1m738
UA 5924United Airlines05:0007:102h 10mE7W
UA 1782United Airlines06:3008:312h 1m738
UA 6041United Airlines10:2012:272h 7mE7W
UA 1139United Airlines10:3612:372h 1m738
UA 2173United Airlines14:4116:422h 1m739
UA 2395United Airlines17:4419:452h 1m738
UA 5924United Airlines05:0007:102h 10mE7W
UA 1782United Airlines06:3008:312h 1m738
UA 6041United Airlines10:2012:272h 7mE7W
UA 1139United Airlines10:3112:332h 2m319
F9 3934Frontier Airlines12:5915:002h 1m32N
UA 2173United Airlines14:4116:422h 1m739
UA 2395United Airlines17:4419:452h 1m738
UA 5924United Airlines05:0007:102h 10mE7W

Showing the first 40 of 45 scheduled BOI to DEN departures across the next 7 days with service. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every BOI to DEN date on the interactive map

The full BOI to DEN nonstop schedule

United Airlines and Frontier Airlines fly the route nonstop in 2LNR's schedule data. This page carries the full BOI to DEN nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See real availability

Confirmed upgrade and award seats on each BOI to DEN departure, checked against live inventory so you know what is open before you book.

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Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See BOI to DEN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Boise to Denver nonstop

Carriers operating BOI to DEN nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

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Frequently asked questions about BOI to DEN

How far is Denver from Boise?
BOI to DEN covers about 647 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from BOI to DEN?
United Airlines and Frontier Airlines fly the route nonstop. None of them is a carrier 2LNR reads inventory for, so this page carries the BOI to DEN schedule rather than a space claim.
How many flights a week are there from BOI to DEN?
About 45 nonstop flights a week run between Boise and Denver in the current schedule, operated by United Airlines and Frontier Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from BOI to DEN depart?
Scheduled BOI to DEN nonstops in the next 7 days with service leave between 05:00 and 17:44, local time at Boise. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Does 2LNR show upgrade or award space on BOI to DEN?
Not on this route: none of United Airlines and Frontier Airlines is a carrier 2LNR reads inventory for. The page carries the full BOI to DEN nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full BOI to DEN nonstop schedule

Every scheduled departure on this route, with who flies it. On the routes 2LNR does read inventory for, upgrade and award space shows by date, the next 14 days free on every product and the full horizon on Pro.

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