| FLIGHT SCHEDULE |
|---|
| Direct Codeshare Flights: |
| Fri
05:30
Denver (DEN)
07:42
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:12 Effective 2026-02-13 through 2026-02-27 Codeshare flight, operated by Frontier Airlines.(F9) |
| Mon,Thu,Sun
06:00
Denver (DEN)
08:06
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A320 (320) 2:06 Effective 2026-01-08 through 2026-01-12 Codeshare flight, operated by Frontier Airlines.(F9) |
| Fri
06:00
Denver (DEN)
08:06
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:06 Operates only on 2026-01-09 Codeshare flight, operated by Frontier Airlines.(F9) |
| Thu,Fri,Sun
06:00
Denver (DEN)
08:12
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A320 (320) 2:12 Effective 2026-01-15 through 2026-01-22 Codeshare flight, operated by Frontier Airlines.(F9) |
| Mon,Fri
06:00
Denver (DEN)
08:12
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:12 Effective 2026-01-19 through 2026-01-26 Codeshare flight, operated by Frontier Airlines.(F9) |
| Sun
06:00
Denver (DEN)
08:12
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A320 (320) 2:12 Effective 2026-01-25 through 2026-02-01 Codeshare flight, operated by Frontier Airlines.(F9) |
| Mon,Thu,Fri
06:00
Denver (DEN)
08:12
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:12 Effective 2026-01-29 through 2026-02-02 Codeshare flight, operated by Frontier Airlines.(F9) |
| Thu,Sun
06:00
Denver (DEN)
08:12
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A320 (320) 2:12 Effective 2026-02-05 through 2026-02-08 Codeshare flight, operated by Frontier Airlines.(F9) |
| Mon,Thu,Fri
06:00
Denver (DEN)
08:12
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:12 Effective 2026-02-06 through 2026-02-12 Codeshare flight, operated by Frontier Airlines.(F9) |
| Mon,Sat,Sun
06:00
Denver (DEN)
08:12
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A320 (320) 2:12 Effective 2026-02-14 through 2026-03-02 Codeshare flight, operated by Frontier Airlines.(F9) |
| Thu
06:00
Denver (DEN)
08:12
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:12 Effective 2026-02-19 through 2026-03-05 Codeshare flight, operated by Frontier Airlines.(F9) |
| Daily
06:00
Denver (DEN)
07:06
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:06 Effective 2026-04-01 through 2026-04-13 Codeshare flight, operated by Frontier Airlines.(F9) |
| Mon,Thu
06:15
Denver (DEN)
08:21
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A320 (320) 2:06 Valid until 2026-01-05 Codeshare flight, operated by Frontier Airlines.(F9) |
| Tue,Wed,Fri-Sun
06:15
Denver (DEN)
08:21
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:06 Valid until 2026-01-04 Codeshare flight, operated by Frontier Airlines.(F9) |
| Tue
06:30
Denver (DEN)
08:42
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A320 (320) 2:12 Effective 2026-02-10 through 2026-03-03 Codeshare flight, operated by Frontier Airlines.(F9) |
| Wed
06:30
Denver (DEN)
08:42
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:12 Effective 2026-02-11 through 2026-03-04 Codeshare flight, operated by Frontier Airlines.(F9) |
| Fri,Sat
06:30
Denver (DEN)
08:42
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:12 Effective 2026-03-06 through 2026-03-07 Codeshare flight, operated by Frontier Airlines.(F9) |
| Mon,Thu-Sun
06:30
Denver (DEN)
07:42
Phoenix Sky Harbor (PHX) Y4 2135 Non-stop Airbus A321 (321) 2:12 Effective 2026-03-08 through 2026-03-30 Codeshare flight, operated by Frontier Airlines.(F9) |