TAP Air Portugal flights from Boston Logan (BOS) to Seattle-Tacoma (SEA).

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 17:15 Boston Logan (BOS) C 20:45 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4393 Non-stop Airbus A220-300 (223) 6:30 Effective 2026-02-12 through 2026-02-18
Codeshare flight, operated by JetBlue.(B6 497)
Daily 17:15 Boston Logan (BOS) C 20:45 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4393 Non-stop Airbus A220-300 (223) 6:30 Effective 2026-02-20 through 2026-02-26
Codeshare flight, operated by JetBlue.(B6 497)
Daily 17:15 Boston Logan (BOS) C 20:45 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4393 Non-stop Airbus A220-300 (223) 6:30 Effective from 2026-02-28
Codeshare flight, operated by JetBlue.(B6 497)
Daily 17:49 Boston Logan (BOS) C 21:19 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4393 Non-stop Airbus A220-300 (223) 6:30 Effective 2025-10-26 through 2025-12-17
Codeshare flight, operated by JetBlue.(B6 497)
Daily 17:55 Boston Logan (BOS) C 21:25 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4393 Non-stop Airbus A220-300 (223) 6:30 Effective 2025-12-18 through 2026-01-09
Codeshare flight, operated by JetBlue.(B6 497)
Mon-Fri,Sun 17:55 Boston Logan (BOS) C 21:25 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4393 Non-stop Airbus A220-300 (223) 6:30 Effective 2026-01-11 through 2026-01-23
Codeshare flight, operated by JetBlue.(B6 497)
Mon-Fri,Sun 17:55 Boston Logan (BOS) C 21:25 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4393 Non-stop Airbus A220-300 (223) 6:30 Effective 2026-01-27 through 2026-02-02
Codeshare flight, operated by JetBlue.(B6 497)
Mon-Fri,Sun 17:55 Boston Logan (BOS) C 21:25 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4393 Non-stop Airbus A220-300 (223) 6:30 Effective 2026-02-04 through 2026-02-10
Codeshare flight, operated by JetBlue.(B6 497)
Daily 18:40 Boston Logan (BOS) C 22:10 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4393 Non-stop Airbus A321 (321) 6:30 Effective 2025-06-12 through 2025-09-02
Codeshare flight, operated by JetBlue.(B6 197)
Daily 07:00 Boston Logan (BOS) C 10:20 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4395 Non-stop Airbus A321 (321) 6:20 Effective 2025-06-12 through 2025-09-02
Codeshare flight, operated by JetBlue.(B6 397)
Mon-Thu,Sat,Sun 07:00 Boston Logan (BOS) C 10:19 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4395 Non-stop Airbus A321 (321) 6:19 Effective 2025-09-03 through 2025-09-11
Codeshare flight, operated by JetBlue.(B6 397)
Daily 07:00 Boston Logan (BOS) C 10:19 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4395 Non-stop Airbus A321 (321) 6:19 Effective 2025-09-12 through 2025-09-18
Codeshare flight, operated by JetBlue.(B6 397)
Daily 07:00 Boston Logan (BOS) C 10:19 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4395 Non-stop Airbus A321 (321) 6:19 Effective 2025-09-20 through 2025-10-25
Codeshare flight, operated by JetBlue.(B6 397)
Wed-Sat 07:05 Boston Logan (BOS) C 10:25 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4395 Non-stop Airbus A321 (321) 6:20 Valid until 2025-05-03
Codeshare flight, operated by JetBlue.(B6 397)
Mon-Wed,Fri-Sun 07:05 Boston Logan (BOS) C 10:23 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4395 Non-stop Airbus A321 (321) 6:18 Effective 2025-06-06 through 2025-06-11
Codeshare flight, operated by JetBlue.(B6 397)
Daily 07:10 Boston Logan (BOS) C 10:28 Seattle-Tacoma (SEA)
TAP Air Portugal TP 4395 Non-stop Airbus A321 (321) 6:18 Effective 2025-05-04 through 2025-06-05
Codeshare flight, operated by JetBlue.(B6 397)
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TAP Air Portugal flights from Boston Logan (BOS) to Seattle-Tacoma (SEA).
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Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Codeshare Flights:

Effective 2026-02-12 through 2026-02-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 497)
Duration: 6:30, non-stop
Airbus A220-300 (223)

Effective 2026-02-20 through 2026-02-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 497)
Duration: 6:30, non-stop
Airbus A220-300 (223)

Effective from 2026-02-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 497)
Duration: 6:30, non-stop
Airbus A220-300 (223)

Effective 2025-10-26 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 497)
Duration: 6:30, non-stop
Airbus A220-300 (223)

Effective 2025-12-18 through 2026-01-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 497)
Duration: 6:30, non-stop
Airbus A220-300 (223)

Effective 2026-01-11 through 2026-01-23
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by JetBlue. (B6 497)
Duration: 6:30, non-stop
Airbus A220-300 (223)

Effective 2026-01-27 through 2026-02-02
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by JetBlue. (B6 497)
Duration: 6:30, non-stop
Airbus A220-300 (223)

Effective 2026-02-04 through 2026-02-10
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by JetBlue. (B6 497)
Duration: 6:30, non-stop
Airbus A220-300 (223)

Effective 2025-06-12 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 197)
Duration: 6:30, non-stop
Airbus A321 (321)

Effective 2025-06-12 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 397)
Duration: 6:20, non-stop
Airbus A321 (321)

Effective 2025-09-03 through 2025-09-11
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 397)
Duration: 6:19, non-stop
Airbus A321 (321)

Effective 2025-09-12 through 2025-09-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 397)
Duration: 6:19, non-stop
Airbus A321 (321)

Effective 2025-09-20 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 397)
Duration: 6:19, non-stop
Airbus A321 (321)

Valid until 2025-05-03
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by JetBlue. (B6 397)
Duration: 6:20, non-stop
Airbus A321 (321)

Effective 2025-06-06 through 2025-06-11
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 397)
Duration: 6:18, non-stop
Airbus A321 (321)

Effective 2025-05-04 through 2025-06-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by JetBlue. (B6 397)
Duration: 6:18, non-stop
Airbus A321 (321)
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  • A domestic route departing from the Boston Logan airport (BOS) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 2487 miles, or 4003 km.
  • The timezone of the departure airport is UTC-5 (plus 1h DST), and the timezone of the arrival airport is UTC-8 (plus 1h DST). Current time at the point of departure is 6:22pm, and 3:22pm at the point of arrival. There is a -3 hour time difference between the airports.
  • For direct flights, the flight time varies between 6:18 and 6:30.