Alaska Airlines flights from Raleigh/Durham (RDU) to Seattle-Tacoma (SEA).

FLIGHT SCHEDULE
Direct Flights:
Daily 07:00 Raleigh/Durham (RDU) 1 10:05 Seattle-Tacoma (SEA) Alaska Airlines AS 188 Non-stop Boeing 737 (73J) 6:05 Effective 2026-03-18 through 2026-04-21
Daily 07:00 Raleigh/Durham (RDU) 1 10:05 Seattle-Tacoma (SEA) Alaska Airlines AS 434 Non-stop Boeing 737 (73J) 6:05 Effective 2026-04-22 through 2026-05-12
Daily 07:20 Raleigh/Durham (RDU) 1 10:19 Seattle-Tacoma (SEA) Alaska Airlines AS 434 Non-stop Boeing 737 (73J) 5:59 Effective 2026-05-13 through 2026-06-09
Daily 07:36 Raleigh/Durham (RDU) 1 10:32 Seattle-Tacoma (SEA) Alaska Airlines AS 434 Non-stop Boeing 737 (73J) 5:56 Effective 2026-06-10 through 2026-10-02
Wed 17:20 Raleigh/Durham (RDU) 1 20:15 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 5:55 Operates only on 2026-03-18
Daily 17:20 Raleigh/Durham (RDU) 1 20:25 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 6:05 Effective 2026-03-19 through 2026-05-12
Daily 17:42 Raleigh/Durham (RDU) 1 20:35 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 5:53 Effective 2026-05-13 through 2026-06-09
Daily 18:01 Raleigh/Durham (RDU) 1 20:58 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 5:57 Effective from 2026-06-10
Wed,Thu,Sun 18:51 Raleigh/Durham (RDU) 1 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 6:09 Effective 2026-02-12 through 2026-02-19
Fri,Sat 18:51 Raleigh/Durham (RDU) 1 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 MAX 9 (7M9) 6:09 Effective 2026-02-13 through 2026-02-21
Mon,Tue 18:51 Raleigh/Durham (RDU) 1 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737-800 (73H) 6:09 Effective 2026-02-16 through 2026-02-17
Tue,Wed,Fri-Sun 18:51 Raleigh/Durham (RDU) 1 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 MAX 9 (7M9) 6:09 Effective 2026-02-22 through 2026-03-01
Mon,Thu 18:51 Raleigh/Durham (RDU) 1 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 6:09 Effective 2026-02-23 through 2026-02-26
Mon-Wed,Fri-Sun 18:51 Raleigh/Durham (RDU) 1 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 MAX 9 (7M9) 6:09 Effective 2026-03-02 through 2026-03-11
Thu 18:51 Raleigh/Durham (RDU) 1 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 6:09 Effective 2026-03-05 through 2026-03-12
Mon,Tue,Fri 18:51 Raleigh/Durham (RDU) 1 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 6:09 Effective 2026-03-13 through 2026-03-17
Sat 18:51 Raleigh/Durham (RDU) 1 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 MAX 9 (7M9) 6:09 Operates only on 2026-03-14
Sun 18:51 Raleigh/Durham (RDU) 1 22:00 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737-800 (73H) 6:09 Operates only on 2026-03-15
Mon-Fri,Sun 19:04 Raleigh/Durham (RDU) 1 22:07 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 MAX 9 (7M9) 6:03 Effective 2026-01-07 through 2026-01-15
Sat 19:04 Raleigh/Durham (RDU) 1 22:07 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 6:03 Operates only on 2026-01-10
Fri 19:04 Raleigh/Durham (RDU) 1 22:07 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737-800 (73H) 6:03 Operates only on 2026-01-16
Tue-Sun 19:04 Raleigh/Durham (RDU) 1 22:07 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 MAX 9 (7M9) 6:03 Effective 2026-01-17 through 2026-01-28
Mon 19:04 Raleigh/Durham (RDU) 1 22:07 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 6:03 Effective 2026-01-19 through 2026-01-26
Thu 19:04 Raleigh/Durham (RDU) 1 22:07 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 6:03 Operates only on 2026-01-29
Daily 19:04 Raleigh/Durham (RDU) 1 22:07 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 MAX 9 (7M9) 6:03 Effective 2026-01-30 through 2026-02-10
Mon,Tue,Sat,Sun 19:05 Raleigh/Durham (RDU) 1 22:04 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737 (73J) 5:59 Valid until 2026-01-06
Fri 19:05 Raleigh/Durham (RDU) 1 22:04 Seattle-Tacoma (SEA) Alaska Airlines AS 572 Non-stop Boeing 737-800 (73H) 5:59 Operates only on 2026-01-02
Tue,Thu 07:28 Raleigh/Durham (RDU) 1 10:32 Seattle-Tacoma (SEA) Alaska Airlines AS 670 Non-stop Boeing 737 (73J) 6:04 Valid until 2026-01-06
Wed,Fri,Sat 07:28 Raleigh/Durham (RDU) 1 10:32 Seattle-Tacoma (SEA) Alaska Airlines AS 670 Non-stop Boeing 737 MAX 9 (7M9) 6:04 Valid until 2026-01-03
Mon,Sun 07:28 Raleigh/Durham (RDU) 1 10:32 Seattle-Tacoma (SEA) Alaska Airlines AS 670 Non-stop Boeing 737-800 (73H) 6:04 Effective 2026-01-04 through 2026-01-05
Wed 19:04 Raleigh/Durham (RDU) 1 22:07 Seattle-Tacoma (SEA) Alaska Airlines AS 797 Non-stop Boeing 737 MAX 9 (7M9) 6:03 Operates only on 2026-02-11

A domestic route departing from the Raleigh/Durham airport (RDU) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 2348 miles, or 3779 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-8 . 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 5:53 and 6:09.

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FLIGHT SCHEDULE

Direct Flights:

Alaska Airlines AS188

07:00

Raleigh/Durham (RDU) 1

10:05

Seattle-Tacoma (SEA)

Effective 2026-03-18 through 2026-04-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:05, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS434

07:00

Raleigh/Durham (RDU) 1

10:05

Seattle-Tacoma (SEA)

Effective 2026-04-22 through 2026-05-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:05, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS434

07:20

Raleigh/Durham (RDU) 1

10:19

Seattle-Tacoma (SEA)

Effective 2026-05-13 through 2026-06-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:59, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS434

07:36

Raleigh/Durham (RDU) 1

10:32

Seattle-Tacoma (SEA)

Effective 2026-06-10 through 2026-10-02

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:56, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

17:20

Raleigh/Durham (RDU) 1

20:15

Seattle-Tacoma (SEA)

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 5:55, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

17:20

Raleigh/Durham (RDU) 1

20:25

Seattle-Tacoma (SEA)

Effective 2026-03-19 through 2026-05-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:05, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

17:42

Raleigh/Durham (RDU) 1

20:35

Seattle-Tacoma (SEA)

Effective 2026-05-13 through 2026-06-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:53, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

18:01

Raleigh/Durham (RDU) 1

20:58

Seattle-Tacoma (SEA)

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 5:57, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

18:51

Raleigh/Durham (RDU) 1

22:00

Seattle-Tacoma (SEA)

Effective 2026-02-12 through 2026-02-19

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 6:09, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

18:51

Raleigh/Durham (RDU) 1

22:00

Seattle-Tacoma (SEA)

Effective 2026-02-13 through 2026-02-21

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 6:09, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS572

18:51

Raleigh/Durham (RDU) 1

22:00

Seattle-Tacoma (SEA)

Effective 2026-02-16 through 2026-02-17

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:09, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS572

18:51

Raleigh/Durham (RDU) 1

22:00

Seattle-Tacoma (SEA)

Effective 2026-02-22 through 2026-03-01

Mon
-

Tue

Wed

Thu
-

Fri

Sat

Sun

Duration: 6:09, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS572

18:51

Raleigh/Durham (RDU) 1

22:00

Seattle-Tacoma (SEA)

Effective 2026-02-23 through 2026-02-26

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 6:09, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

18:51

Raleigh/Durham (RDU) 1

22:00

Seattle-Tacoma (SEA)

Effective 2026-03-02 through 2026-03-11

Mon

Tue

Wed

Thu
-

Fri

Sat

Sun

Duration: 6:09, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS572

18:51

Raleigh/Durham (RDU) 1

22:00

Seattle-Tacoma (SEA)

Effective 2026-03-05 through 2026-03-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 6:09, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

18:51

Raleigh/Durham (RDU) 1

22:00

Seattle-Tacoma (SEA)

Effective 2026-03-13 through 2026-03-17

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 6:09, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

18:51

Raleigh/Durham (RDU) 1

22:00

Seattle-Tacoma (SEA)

Operates only on 2026-03-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:09, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS572

18:51

Raleigh/Durham (RDU) 1

22:00

Seattle-Tacoma (SEA)

Operates only on 2026-03-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 6:09, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS572

19:04

Raleigh/Durham (RDU) 1

22:07

Seattle-Tacoma (SEA)

Effective 2026-01-07 through 2026-01-15

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:03, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS572

19:04

Raleigh/Durham (RDU) 1

22:07

Seattle-Tacoma (SEA)

Operates only on 2026-01-10

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:03, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

19:04

Raleigh/Durham (RDU) 1

22:07

Seattle-Tacoma (SEA)

Operates only on 2026-01-16

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 6:03, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS572

19:04

Raleigh/Durham (RDU) 1

22:07

Seattle-Tacoma (SEA)

Effective 2026-01-17 through 2026-01-28

Mon
-

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:03, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS572

19:04

Raleigh/Durham (RDU) 1

22:07

Seattle-Tacoma (SEA)

Effective 2026-01-19 through 2026-01-26

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:03, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

19:04

Raleigh/Durham (RDU) 1

22:07

Seattle-Tacoma (SEA)

Operates only on 2026-01-29

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 6:03, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

19:04

Raleigh/Durham (RDU) 1

22:07

Seattle-Tacoma (SEA)

Effective 2026-01-30 through 2026-02-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:03, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS572

19:05

Raleigh/Durham (RDU) 1

22:04

Seattle-Tacoma (SEA)

Valid until 2026-01-06

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat

Sun

Duration: 5:59, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS572

19:05

Raleigh/Durham (RDU) 1

22:04

Seattle-Tacoma (SEA)

Operates only on 2026-01-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 5:59, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS670

07:28

Raleigh/Durham (RDU) 1

10:32

Seattle-Tacoma (SEA)

Valid until 2026-01-06

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 6:04, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS670

07:28

Raleigh/Durham (RDU) 1

10:32

Seattle-Tacoma (SEA)

Valid until 2026-01-03

Mon
-

Tue
-

Wed

Thu
-

Fri

Sat

Sun
-

Duration: 6:04, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS670

07:28

Raleigh/Durham (RDU) 1

10:32

Seattle-Tacoma (SEA)

Effective 2026-01-04 through 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 6:04, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS797

19:04

Raleigh/Durham (RDU) 1

22:07

Seattle-Tacoma (SEA)

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:03, non-stop
Boeing 737 MAX 9 (7M9)

A domestic route departing from the Raleigh/Durham airport (RDU) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 2348 miles, or 3779 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-8 . 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 5:53 and 6:09.

All RDU-SEA flights

All Alaska Airlines flights

Return (SEA-RDU) flights

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