Direct flights from Boise to Denver
All flights from BOI to DEN non-stop. There are direct flights from Boise Air Terminal (BOI), Idaho, USA to Denver International (DEN), Colorado, USA with United Airlines, Southwest Airlines and Frontier Airlines. 59 weekly departures are currently scheduled on this route. Departure times range from 05:00 to 18:25 depending on the schedule period. The flight distance is 651 miles (1047 km). Flight time ranges from 1 hour and 45 minutes to 2 hours and 11 minutes.
Airlines with non-stop routes:
United Airlines
Southwest Airlines
Frontier Airlines
Flight schedule from Boise to Denver with United Airlines
This is a weekly direct flight schedule for United Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-06-29
Flight schedule from Boise to Denver with Southwest Airlines
This is a weekly direct flight schedule for Southwest Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-06-29
Flight schedule from Boise to Denver with Frontier Airlines
This is a weekly direct flight schedule for Frontier Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-06-29
Boise to Denver scheduled departures
Select a date to see every published non-stop departure between BOI and DEN.
BOI - DEN route facts
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Distance651 miles (1047 km)
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Flight time1 hour and 45 minutes to 2 hours and 11 minutes
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Airlines
United
Southwest
Frontier -
Airline alliancesStar Alliance Low-cost carrier
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CabinsEconomy Business First
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Hub airportsUnited Airlines: DEN
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AircraftUnited Airlines: Embraer 175 (Enhanced Winglets), Boeing 737MAX 9 Passenger, Boeing 737-900 Passenger, Airbus A320, Boeing 737-800 Passenger and Airbus A319Southwest Airlines: Boeing 737MAX 8 Passenger, Boeing 737-800 (winglets) Passenger/BBJ2 and Boeing 737-700 Passenger (Scimitar Winglets)Frontier Airlines: Airbus A320neo, Airbus A321 and Airbus A321neo
