Seattle (SEA) to Boston (BOS) August 2025 Flight Schedule

Flight Seattle(SEA) to Boston(BOS)
CHANGE DIRECTION

Seattle-Tacoma International Airport Logan International Airport
SEA : Seattle , United States BOS : Boston , United States
UTC-7(DST) UTC-4(DST)

Seattle to Boston Flight Schedule(August 2025)

Flight from Seattle(SEA) to Boston(BOS) is operated by 5 airlines : JetBlue Airways (B6),Alaska Airlines (AS),Delta Air Lines (DL),United Airlines (UA),Southwest Airlines (WN). You can check flight schedules, flight duration, and aircraft types.

Change Direction(BOS to SEA)

Seattle (SEA) to Boston (BOS) Flight Schedule

LastUpdate : 2025/09/01 06:00

Flight Schedule on August 2025 , Direct flight departure from Seattle with all airlines , flight number, flight duration, aircraft type.

August 2025
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  • Alaska Airlines [ Show / Hide ]
  • Delta Air Lines [ Show / Hide ]
  • United Airlines [ Show / Hide ]
  • Southwest Airlines [ Show / Hide ]
  • ★ CodeShare [ Show / Hide ]
Change Direction(BOS to SEA)
Flight Number / Airline Departure Time Arrival Time Flight Duration Operating Days Aircraft Type Airfare / Tickets
DL459
Delta Air Lines
07:45 16:24 5h39m
Daily (Aug 1–31)
A321neo Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
Codeshare flight
AS306
Alaska Airlines
08:21 16:45 5h24m
Daily (Aug 1–19)
737-9-MAX Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
08:00 16:37 5h37m
--W---- (Aug 20)
737-900 (WL)
08:00 16:37 5h37m
Daily (Aug 21–31)
737-9-MAX
Codeshare flight
AS818
Alaska Airlines
10:58 19:19 5h21m
----F-- (Aug 1, Aug 8)
737-900 (WL) Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
10:58 19:19 5h21m
MTWT-SS (Aug 2–7, Aug 9–14, Aug 16–17)
737-9-MAX
10:58 19:19 5h21m
----F-- (Aug 15)
737-800 (WL)
10:58 19:19 5h21m
MT----- (Aug 18–19)
737-9-MAX
10:56 19:23 5h27m
--WTF-S (Aug 20–22, Aug 24, Aug 27–29, Aug 31)
737-9-MAX
10:56 19:23 5h27m
MT---S- (Aug 23, Aug 25–26, Aug 30)
737-900 (WL)
Codeshare flight
B6398
JetBlue Airways
11:43 20:15 5h32m
MT----- (Aug 4–5)
A321 Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
11:30 20:10 5h40m
--W---- (Aug 6)
A321
11:30 20:05 5h35m
M--TFSS (Aug 7–11, Aug 14–18, Aug 21–24)
A321
11:30 20:10 5h40m
-TW---- (Aug 12–13, Aug 19–20)
A321
11:30 20:05 5h35m
M---F-S (Aug 25, Aug 29, Aug 31)
A321
11:30 20:10 5h40m
-T-T--- (Aug 26, Aug 28)
A321
11:20 19:55 5h35m
--W--S- (Aug 27, Aug 30)
A320
Codeshare flight
UA472
United Airlines
11:50 23:10 8h20m
1 Transfer
MTWTF-S (Aug 3–8, Aug 10–15, Aug 17–18)
Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
UA297
United Airlines
12:40 06:01(+1) 14h21m
2 Transfers
Daily (Aug 4–18)
Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
AS460
Alaska Airlines
15:43 23:59 5h16m
Daily (Aug 1–17)
737-9-MAX Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
15:43 23:59 5h16m
MT----- (Aug 18–19)
737-900 (WL)
15:59 00:23(+1) 5h24m
Daily (Aug 20–26, Aug 29–31)
737-9-MAX
15:59 00:23(+1) 5h24m
--WT--- (Aug 27–28)
737-900 (WL)
Codeshare flight
DL474
Delta Air Lines
15:50 00:15(+1) 5h25m
MTWTF-S (Aug 1, Aug 3–8, Aug 10)
A321neo Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
15:55 00:20(+1) 5h25m
MTWTF-S (Aug 11–15, Aug 17–22, Aug 24–25, Aug 28–29)
A321neo
Codeshare flight
B6198
JetBlue Airways
21:13 05:25(+1) 5h12m
MT----- (Aug 4–5)
A321 Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
21:14 05:29(+1) 5h15m
Daily (Aug 6–27)
A321
21:40 06:01(+1) 5h21m
---TFSS (Aug 28–31)
A321
Codeshare flight
DL473
Delta Air Lines
22:17 06:40(+1) 5h23m
Daily (Aug 1–10)
A321neo Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
22:05 06:30(+1) 5h25m
Daily (Aug 11–31)
A321neo
Codeshare flight
AS536
Alaska Airlines
23:40 08:00(+1) 5h20m
Daily (Aug 1–12, Aug 14–17)
737-900 (WL) Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
23:40 08:00(+1) 5h20m
--W---- (Aug 13)
737-9-MAX
23:40 08:00(+1) 5h20m
M------ (Aug 18)
737-900 (WL)
23:34 08:00(+1) 5h26m
--WTFSS (Aug 20–24)
737-9-MAX
23:34 08:00(+1) 5h26m
M-WT--- (Aug 25, Aug 27–28)
737-900 (WL)
23:34 08:00(+1) 5h26m
-T--FSS (Aug 26, Aug 29–31)
737-9-MAX
Codeshare flight
Change Direction(BOS to SEA)
Flight schedules as of September 01, 2025, 06:00 AM(OAG data). Schedules may change without notice, so please check with airlines before booking. Refer to FlyTeam's terms of use before proceeding. Some airlines and flight numbers may not be displayed.

FAQ : Seattle to Boston

How many airlines fly from Seattle to Boston ?
As of August 2025, 5 airlines operate direct flights from Seattle (SEA) to Boston (BOS) : JetBlue Airways , Alaska Airlines , Delta Air Lines , United Airlines , Southwest Airlines.
How far is it from Seattle to Boston?
The distance between Seattle (SEA) to Boston (BOS) is approximately 2,490 miles(4,010km) by air.
What is the time difference between Seattle to Boston?
The time difference between Seattle-Tacoma International Airport(Seattle) and Logan International Airport(Boston) is +3 hours. Boston is 3 hours ahead of Seattle.Seattle is currently observing daylight saving time (DST) from March 9, 2025 to November 2, 2025.Boston is currently observing daylight saving time (DST) from March 9, 2025 to November 2, 2025.