Airlines with flights from Boise to Denver

There are four airlines with scheduled flights between BOI and DEN. United, Southwest and Frontier has non-stop flights from Boise Air Terminal to Denver International and the flight time is 1 hour and 59 minutes. You can also connect with Delta via Salt Lake City with a flight time of 3 hours and 12 minutes.

Choose airline

Schedules

United Airlines

Non-stop with United Airlines

  • Total flight time: 1 hour and 59 minutes
  • Denver is a United Airlines hub.
  • 35 flights per week
  • Embraer 175 (Enhanced Winglets)
    Boeing 737-900 Passenger
    Airbus A319
    Boeing 737-800 Passenger
    Boeing 737MAX 9 Passenger
  • Business and first class available
BOI
Direct
DEN
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA5924
05:00
05:00
05:00
05:00
05:00
05:00
05:00
UA1782
06:30
06:30
06:30
06:30
06:30
06:30
06:30
UA4656
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10:38
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UA517
10:41
10:41
10:41
10:41
10:41
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10:41
UA2173
14:40
14:40
14:40
14:40
14:40
14:40
14:40
UA2395
17:46
17:46
17:46
17:46
17:46
17:46
17:46
SHOW RETURN SCHEDULE
CHECK PRICES FOR BOI - DEN

The timetable & schedule information was updated at 2026-04-21

Southwest Airlines

Non-stop with Southwest Airlines

  • Total flight time: 1 hour and 50 minutes
  • Low-cost airline
  • Denver is a Southwest Airlines focus city (Operating base).
  • 27 flights per week
  • Boeing 737MAX 8 Passenger
    Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737-700 Passenger (Scimitar Winglets)
BOI
Direct
DEN

The timetable & schedule information was updated at 2026-04-21

Frontier Airlines

Non-stop with Frontier Airlines

  • Total flight time: 2 hours and 6 minutes
  • Low-cost airline
  • Denver is a Frontier Airlines focus city (Operating base).
  • 5 flights per week
  • Airbus A321
BOI
Direct
DEN

The timetable & schedule information was updated at 2026-04-21

Delta Air Lines

Via Salt Lake City with Delta Air Lines

  • Total flight time: 3h 12m - 5h 51m.
  • Sky Team Alliance
  • 99 flights per week
BOI
 
Via SLC
 
DEN

The timetable & schedule information was updated at 2026-04-21

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Flight data on this page was last updated on 2026-06-02