| FLIGHT SCHEDULE | 
|---|
| Direct Codeshare Flights: | 
| Daily 
07:20 
Seattle-Tacoma (SEA)  
15:59 
Boston Logan (BOS) A SK 3351 Non-stop Airbus A321neo (32Q) 5:39 Effective 2025-07-07 through 2025-09-07 Codeshare flight, operated by Delta Air Lines.(DL 459)  | 
| Daily 
07:20 
Seattle-Tacoma (SEA)  
15:54 
Boston Logan (BOS) A SK 3351 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-08 through 2025-09-16 Codeshare flight, operated by Delta Air Lines.(DL 459)  | 
| Mon,Tue,Thu-Sun 
07:20 
Seattle-Tacoma (SEA)  
15:54 
Boston Logan (BOS) A SK 3351 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-09-18 through 2025-10-28 Codeshare flight, operated by Delta Air Lines.(DL 459)  | 
| Daily 
07:20 
Seattle-Tacoma (SEA)  
15:54 
Boston Logan (BOS) A SK 3351 Non-stop Airbus A321neo (32Q) 5:34 Effective 2025-10-29 through 2025-12-19 Codeshare flight, operated by Delta Air Lines.(DL 459)  | 
| Daily 
07:20 
Seattle-Tacoma (SEA)  
15:50 
Boston Logan (BOS) A SK 3351 Non-stop Airbus A321neo (32Q) 5:30 Effective from 2026-01-06 Codeshare flight, operated by Delta Air Lines.(DL 459)  | 
| Daily 
07:25 
Seattle-Tacoma (SEA)  
16:00 
Boston Logan (BOS) A SK 3351 Non-stop Airbus A321neo (32Q) 5:35 Effective 2025-05-07 through 2025-06-07 Codeshare flight, operated by Delta Air Lines.(DL 459)  | 
| Daily 
07:35 
Seattle-Tacoma (SEA)  
16:07 
Boston Logan (BOS) A SK 3351 Non-stop Airbus A321neo (32Q) 5:32 Valid until 2025-05-06 Codeshare flight, operated by Delta Air Lines.(DL 459)  |