| FLIGHT SCHEDULE |
|---|
| Direct Codeshare Flights: |
| Mon,Fri
05:01
Phoenix Sky Harbor (PHX)
09:42
Houston George Bush (IAH) Y4 2237 Non-stop Airbus A320 (320) 2:41 Effective 2026-03-13 through 2026-03-23 Codeshare flight, operated by Frontier Airlines.(F9) |
| Mon,Wed,Fri,Sat
05:01
Phoenix Sky Harbor (PHX)
09:42
Houston George Bush (IAH) Y4 2237 Non-stop Airbus A320 (320) 2:41 Effective 2026-03-25 through 2026-03-30 Codeshare flight, operated by Frontier Airlines.(F9) |
| Fri,Sat
05:15
Phoenix Sky Harbor (PHX)
08:56
Houston George Bush (IAH) Y4 2237 Non-stop Airbus A320 (320) 2:41 Effective 2026-03-06 through 2026-03-07 Codeshare flight, operated by Frontier Airlines.(F9) |
| Mon-Thu,Sat,Sun
05:15
Phoenix Sky Harbor (PHX)
09:56
Houston George Bush (IAH) Y4 2237 Non-stop Airbus A320 (320) 2:41 Effective 2026-03-08 through 2026-03-15 Codeshare flight, operated by Frontier Airlines.(F9) |
| Tue-Thu,Sat,Sun
05:15
Phoenix Sky Harbor (PHX)
09:56
Houston George Bush (IAH) Y4 2237 Non-stop Airbus A320 (320) 2:41 Effective 2026-03-17 through 2026-03-22 Codeshare flight, operated by Frontier Airlines.(F9) |
| Thu
08:15
Phoenix Sky Harbor (PHX)
12:00
Houston George Bush (IAH) Y4 2237 Non-stop Airbus A320 (320) 2:45 Effective 2026-01-22 through 2026-02-05 Codeshare flight, operated by Frontier Airlines.(F9) |
| Mon,Fri-Sun
10:09
Phoenix Sky Harbor (PHX)
13:48
Houston George Bush (IAH) Y4 2237 Non-stop Airbus A320 (320) 2:39 Effective 2026-01-23 through 2026-02-09 Codeshare flight, operated by Frontier Airlines.(F9) |
| Thu
17:50
Phoenix Sky Harbor (PHX)
21:33
Houston George Bush (IAH) Y4 2237 Non-stop Airbus A320 (320) 2:43 Operates only on 2026-01-08 Codeshare flight, operated by Frontier Airlines.(F9) |
| Sun
17:50
Phoenix Sky Harbor (PHX)
21:33
Houston George Bush (IAH) Y4 2237 Non-stop Airbus A321 (321) 2:43 Operates only on 2026-01-11 Codeshare flight, operated by Frontier Airlines.(F9) |