Alaska Airlines Flights from Phoenix to Seattle

Flexpay logo

Book now. Pay later.

Spread the cost of your flight over low monthly payments.

Lowest fares from Phoenix to Seattle

$84
$329
Displaying fares for April-2025
03

Th

APR

04

Fr

05

Sa

06

Su

07

Mo

08

Tu

09

We

10

Th

11

Fr

12

Sa

13

Su

14

Mo

15

Tu

16

We

17

Th

18

Fr

19

Sa

20

Su

21

Mo

22

Tu

23

We

24

Th

25

Fr

26

Sa

27

Su

28

Mo

29

Tu

30

We

01

Th

MAY

02

Fr

Range$84-$329

One-way low-fare flights Phoenix to Seattle.*

One-way low-fare flights Phoenix to Seattle.*
From
To
Fare Type
Dates
Price
Phoenix (PHX)Seattle (SEA)One-way
|
Saver
Depart: May 14, 2025

From

$80

Seen: 34 minutes ago

Phoenix (PHX)Seattle (SEA)One-way
|
Saver
Depart: May 13, 2025

From

$80

Seen: 48 minutes ago

Phoenix (PHX)Seattle (SEA)One-way
|
Saver
Depart: May 6, 2025

From

$80

Seen: 1 day ago

Phoenix (PHX)Seattle (SEA)One-way
|
Saver
Depart: May 7, 2025

From

$80

Seen: 34 minutes ago

Phoenix (PHX)Seattle (SEA)One-way
|
Saver
Depart: Jul 28, 2025

From

$84

Seen: 1 day ago

Phoenix (PHX)Seattle (SEA)One-way
|
Saver
Depart: Jul 2, 2025

From

$84

Seen: 1 day ago

Phoenix (PHX)Seattle (SEA)One-way
|
Saver
Depart: Jul 20, 2025

From

$84

Seen: 1 day ago

Phoenix (PHX)Seattle (SEA)One-way
|
Saver
Depart: Jun 4, 2025

From

$84

Seen: 1 day ago

*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.