| FLIGHT SCHEDULE | 
|---|
| Direct Flights: | 
| Thu,Fri 
06:00 
George Bush, Houston (IAH) A 
08:44 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737-800 (73H) 4:44 Effective 2025-05-16 through 2025-05-22  | 
| Mon-Wed,Fri-Sun 
06:00 
George Bush, Houston (IAH) A 
08:44 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 MAX 9 (7M9) 4:44 Effective 2025-05-17 through 2025-05-31  | 
| Thu,Sun 
06:00 
George Bush, Houston (IAH) A 
08:44 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 (73J) 4:44 Effective 2025-05-29 through 2025-06-01  | 
| Daily 
06:00 
George Bush, Houston (IAH) A 
08:44 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 MAX 9 (7M9) 4:44 Effective 2025-06-02 through 2025-06-11  | 
| Wed-Fri,Sun 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Effective 2025-06-12 through 2025-06-22  | 
| Mon,Sat 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 (73J) 4:40 Effective 2025-06-14 through 2025-06-21  | 
| Tue 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737-800 (73H) 4:40 Operates only on 2025-06-17  | 
| Mon,Thu,Fri 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Effective 2025-06-23 through 2025-06-30  | 
| Tue,Wed,Sat,Sun 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 (73J) 4:40 Effective 2025-06-24 through 2025-07-01  | 
| Mon-Wed,Sun 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Effective 2025-07-02 through 2025-07-09  | 
| Thu 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737-800 (73H) 4:40 Operates only on 2025-07-03  | 
| Thu-Sat 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 (73J) 4:40 Effective 2025-07-04 through 2025-07-10  | 
| Daily 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Effective 2025-07-11 through 2025-07-17  | 
| Fri 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 (73J) 4:40 Operates only on 2025-07-18  | 
| Daily 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Effective 2025-07-19 through 2025-08-03  | 
| Mon 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 (73J) 4:40 Effective 2025-08-04 through 2025-08-11  | 
| Tue-Sun 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Effective 2025-08-05 through 2025-08-14  | 
| Mon,Fri 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 (73J) 4:40 Effective 2025-08-15 through 2025-08-18  | 
| Tue,Sat,Sun 
06:00 
George Bush, Houston (IAH) A 
08:40 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Effective 2025-08-16 through 2025-08-19  | 
| Mon,Thu-Sun 
06:00 
George Bush, Houston (IAH) A 
08:42 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 (73J) 4:42 Effective 2025-08-21 through 2025-10-03  | 
| Mon,Thu,Sat 
06:30 
George Bush, Houston (IAH) A 
09:14 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 MAX 9 (7M9) 4:44 Valid until 2025-05-12  | 
| Fri 
06:30 
George Bush, Houston (IAH) A 
09:14 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737-800 (73H) 4:44 Operates only on 2025-05-02  | 
| Tue,Wed,Fri,Sun 
06:30 
George Bush, Houston (IAH) A 
09:14 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 (73J) 4:44 Effective 2025-05-04 through 2025-05-14  | 
| Daily 
07:35 
George Bush, Houston (IAH) A 
10:15 
Seattle-Tacoma (SEA)  AS 453 Non-stop Boeing 737 (73J) 4:40 Effective from 2025-10-04  |