All airlines flying from Raleigh/Durham (RDU) to Seattle-Tacoma (SEA).

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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 06:55 Raleigh/Durham (RDU) 2 10:05 Seattle-Tacoma (SEA) Delta Air Lines DL 354 Non-stop Boeing 737-900 (739) 6:10 Effective from 2026-10-06
Daily 07:00 Raleigh/Durham (RDU) 2 10:00 Seattle-Tacoma (SEA) Delta Air Lines DL 354 Non-stop Boeing 737-800 (738) 6:00 Effective 2026-03-08 through 2026-03-14
Daily 07:00 Raleigh/Durham (RDU) 2 10:02 Seattle-Tacoma (SEA) Delta Air Lines DL 354 Non-stop Boeing 737-800 (738) 6:02 Effective 2026-03-15 through 2026-05-06
Daily 07:00 Raleigh/Durham (RDU) 2 10:02 Seattle-Tacoma (SEA) Delta Air Lines DL 354 Non-stop Boeing 737-900 (739) 6:02 Effective 2026-05-07 through 2026-10-05
Sat 07:15 Raleigh/Durham (RDU) 2 10:26 Seattle-Tacoma (SEA) Delta Air Lines DL 354 Non-stop Boeing 737-800 (738) 6:11 Effective 2026-01-24 through 2026-02-07
Daily 07:36 Raleigh/Durham (RDU) 2 10:42 Seattle-Tacoma (SEA) Delta Air Lines DL 354 Non-stop Boeing 737-800 (738) 6:06 Effective 2026-01-06 through 2026-01-23
Mon-Fri,Sun 07:36 Raleigh/Durham (RDU) 2 10:42 Seattle-Tacoma (SEA) Delta Air Lines DL 354 Non-stop Boeing 737-800 (738) 6:06 Effective 2026-01-25 through 2026-02-13
Daily 07:36 Raleigh/Durham (RDU) 2 10:42 Seattle-Tacoma (SEA) Delta Air Lines DL 354 Non-stop Boeing 737-800 (738) 6:06 Effective 2026-02-14 through 2026-03-07
Mon 07:39 Raleigh/Durham (RDU) 2 10:45 Seattle-Tacoma (SEA) Delta Air Lines DL 354 Non-stop Boeing 737-800 (738) 6:06 Operates only on 2026-01-05
Daily 07:39 Raleigh/Durham (RDU) 2 10:45 Seattle-Tacoma (SEA) Delta Air Lines DL 370 Non-stop Boeing 737-800 (738) 6:06 Valid until 2026-01-04
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
Non-Direct Flights:
Sat 05:30 Raleigh/Durham (RDU) 1 11:20 Seattle-Tacoma (SEA) Southwest Airlines WN 105 1-stop Boeing 737-800 (73H) 8:50 Valid until 2026-01-03
Daily 13:20 Raleigh/Durham (RDU) 2 22:18 Seattle-Tacoma (SEA) United Airlines UA 684 2-stop Boeing 737-700 (73G) 11:58 Effective 2026-05-21 through 2026-06-24
Daily 06:30 Raleigh/Durham (RDU) 2 19:43 Seattle-Tacoma (SEA) United Airlines UA 2638 2-stop Boeing 737-800 (738) 16:13 Effective 2026-04-30 through 2026-05-20
Daily 06:45 Raleigh/Durham (RDU) 2 19:12 Seattle-Tacoma (SEA) United Airlines UA 2638 2-stop Boeing 737-800 (738) 15:27 Effective from 2026-05-21
Direct Codeshare Flights:
Daily 07:36 Raleigh/Durham (RDU) 1 10:32 Seattle-Tacoma (SEA) Air Tahiti Nui TN 2315 Non-stop Boeing 737 (73J) 5:56 Effective 2026-08-19 through 2026-10-02 Codeshare flight, operated by Alaska Airlines.(AS 434)
Sat 07:36 Raleigh/Durham (RDU) 1 10:32 Seattle-Tacoma (SEA) Air Tahiti Nui TN 2366 Non-stop Boeing 737 (73J) 5:56 Effective 2026-06-13 through 2026-08-15 Codeshare flight, operated by Alaska Airlines.(AS 434)
Daily 07:00 Raleigh/Durham (RDU) 1 10:05 Seattle-Tacoma (SEA) Air Tahiti Nui TN 2401 Non-stop Boeing 737 (73J) 6:05 Effective 2026-04-22 through 2026-05-12 Codeshare flight, operated by Alaska Airlines.(AS 434)
Daily 07:20 Raleigh/Durham (RDU) 1 10:19 Seattle-Tacoma (SEA) Air Tahiti Nui TN 2449 Non-stop Boeing 737 (73J) 5:59 Effective 2026-05-13 through 2026-06-09 Codeshare flight, operated by Alaska Airlines.(AS 434)
Daily 07:00 Raleigh/Durham (RDU) 1 10:05 Seattle-Tacoma (SEA) Air Tahiti Nui TN 2499 Non-stop Boeing 737 (73J) 6:05 Effective 2026-03-18 through 2026-04-21 Codeshare flight, operated by Alaska Airlines.(AS 188)

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Parallax here RDU-SEA

1 2 3

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 6:11.

Return (SEA-RDU) flights

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All airlines flying from Raleigh/Durham (RDU) to Seattle-Tacoma (SEA).

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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:

Delta Air Lines DL354

06:55

Raleigh/Durham (RDU) 2

10:05

Seattle-Tacoma (SEA)

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:10, non-stop
Boeing 737-900 (739)

Direct Flights:

Delta Air Lines DL354

07:00

Raleigh/Durham (RDU) 2

10:00

Seattle-Tacoma (SEA)

Effective 2026-03-08 through 2026-03-14

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:00, non-stop
Boeing 737-800 (738)

Direct Flights:

Delta Air Lines DL354

07:00

Raleigh/Durham (RDU) 2

10:02

Seattle-Tacoma (SEA)

Effective 2026-03-15 through 2026-05-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:02, non-stop
Boeing 737-800 (738)

Direct Flights:

Delta Air Lines DL354

07:00

Raleigh/Durham (RDU) 2

10:02

Seattle-Tacoma (SEA)

Effective 2026-05-07 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:02, non-stop
Boeing 737-900 (739)

Direct Flights:

Delta Air Lines DL354

07:15

Raleigh/Durham (RDU) 2

10:26

Seattle-Tacoma (SEA)

Effective 2026-01-24 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:11, non-stop
Boeing 737-800 (738)

Direct Flights:

Delta Air Lines DL354

07:36

Raleigh/Durham (RDU) 2

10:42

Seattle-Tacoma (SEA)

Effective 2026-01-06 through 2026-01-23

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:06, non-stop
Boeing 737-800 (738)

Direct Flights:

Delta Air Lines DL354

07:36

Raleigh/Durham (RDU) 2

10:42

Seattle-Tacoma (SEA)

Effective 2026-01-25 through 2026-02-13

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 6:06, non-stop
Boeing 737-800 (738)

Direct Flights:

Delta Air Lines DL354

07:36

Raleigh/Durham (RDU) 2

10:42

Seattle-Tacoma (SEA)

Effective 2026-02-14 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:06, non-stop
Boeing 737-800 (738)

Direct Flights:

Delta Air Lines DL354

07:39

Raleigh/Durham (RDU) 2

10:45

Seattle-Tacoma (SEA)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:06, non-stop
Boeing 737-800 (738)

Direct Flights:

Delta Air Lines DL370

07:39

Raleigh/Durham (RDU) 2

10:45

Seattle-Tacoma (SEA)

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:06, non-stop
Boeing 737-800 (738)

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)

Non-Direct Flights:

Southwest Airlines WN105

05:30

Raleigh/Durham (RDU) 1

11:20

Seattle-Tacoma (SEA)

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 8:50, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

United Airlines UA684

13:20

Raleigh/Durham (RDU) 2

22:18

Seattle-Tacoma (SEA)

Effective 2026-05-21 through 2026-06-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 11:58, 2-stop
Boeing 737-700 (73G)

Non-Direct Flights:

United Airlines UA2638

06:30

Raleigh/Durham (RDU) 2

19:43

Seattle-Tacoma (SEA)

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 16:13, 2-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA2638

06:45

Raleigh/Durham (RDU) 2

19:12

Seattle-Tacoma (SEA)

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 15:27, 2-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Air Tahiti Nui TN2315

07:36

Raleigh/Durham (RDU) 1

10:32

Seattle-Tacoma (SEA)

Effective 2026-08-19 through 2026-10-02

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 434)

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

Direct Codeshare Flights:

Air Tahiti Nui TN2366

07:36

Raleigh/Durham (RDU) 1

10:32

Seattle-Tacoma (SEA)

Effective 2026-06-13 through 2026-08-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 434)

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

Direct Codeshare Flights:

Air Tahiti Nui TN2401

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

Codeshare flight, operated by Alaska Airlines. (AS 434)

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

Direct Codeshare Flights:

Air Tahiti Nui TN2449

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

Codeshare flight, operated by Alaska Airlines. (AS 434)

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

Direct Codeshare Flights:

Air Tahiti Nui TN2499

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

Codeshare flight, operated by Alaska Airlines. (AS 188)

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

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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 6:11.

Return (SEA-RDU) flights

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