TAP Air Portugal flight TP 4478: Seattle-Tacoma - Boston Logan

FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 11:30 Seattle-Tacoma (SEA) 20:05 Boston Logan (BOS) C TP 4478 Non-stop Airbus A321 (321) 5:35 Effective 2026-04-30 through 2026-09-08 Codeshare flight, operated by JetBlue.(B6 398)
Daily 11:30 Seattle-Tacoma (SEA) 20:23 Boston Logan (BOS) C TP 4478 Non-stop Airbus A321 (321) 5:53 Effective from 2026-09-09 Codeshare flight, operated by JetBlue.(B6 398)

TP 4478 is a domestic flight departing from the Seattle-Tacoma airport (SEA) and arriving at Boston Logan airport (BOS).
The flight distance is 2487 miles, or 4003 km.
The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 5:35 and 5:53.

TAP Air Portugal flight TP 4478:
Seattle-Tacoma - Boston Logan

FLIGHT SCHEDULE

Direct Codeshare Flights:

TAP Air Portugal TP4478

11:30

20:05

Effective 2026-04-30 through 2026-09-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by JetBlue. (B6 398)

Duration: 5:35, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

TAP Air Portugal TP4478

11:30

20:23

Effective from 2026-09-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by JetBlue. (B6 398)

Duration: 5:53, non-stop
Airbus A321 (321)

TP 4478 is a domestic flight departing from the Seattle-Tacoma airport (SEA) and arriving at Boston Logan airport (BOS).
The flight distance is 2487 miles, or 4003 km.
The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 5:35 and 5:53.

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