$100+ Cheap flights from Phoenix to Seattle (SEA)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SEA
Sep 18 — Sep 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Phoenix to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Phoenix to Seattle/Tacoma Intl are usually found in January or February, booked 62 days in advance, depart on a Friday or Thursday and return on a Saturday
Cheap flight deals from Phoenix to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Phoenix to SeattleExplore the most affordable flight options available from Phoenix to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.
Explore the most affordable flight options available from Phoenix to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:38 am -
1 stop12h 48m
Sat 10/103:10 pm -
Nonstop2h 50m
Deal found 8/19![Alaska Airlines logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:39 pm -
1 stop13h 03m
Wed 9/2310:53 am -
2 stops8h 10m
Deal found 8/17![Frontier logo]()
$210
This Priceline deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:38 pm -
Nonstop3h 08m
Fri 9/254:27 pm -
1 stop7h 16m
Deal found 8/19![Multiple Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:20 am -
1 stop7h 50m
Wed 9/3010:53 am -
2 stops8h 10m
Deal found 8/18![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:20 am -
1 stop7h 50m
Mon 9/288:15 pm -
1 stop25h 58m
Deal found 8/19![Frontier logo]()
$215
This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:02 am -
Nonstop3h 12m
Sun 10/116:54 pm -
Nonstop2h 54m
Deal found 8/19![Alaska Airlines logo]()
$216
This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:03 pm -
Nonstop3h 10m
Sun 10/117:27 am -
Nonstop3h 05m
Deal found 8/19![Alaska Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:23 pm -
1 stop16h 19m
Sat 9/194:27 pm -
1 stop7h 16m
Deal found 8/15![Frontier logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:20 am -
1 stop7h 50m
Wed 9/164:27 pm -
2 stops28h 07m
Deal found 8/18![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:20 am -
1 stop7h 50m
Tue 9/1510:57 am -
2 stops9h 37m
Deal found 8/18![Frontier logo]()
$221
This Super.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:25 am -
1 stop8h 43m
Thu 9/174:27 pm -
1 stop7h 16m
Deal found 8/16![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:24 pm -
1 stop14h 18m
Wed 9/304:27 pm -
1 stop7h 16m
Deal found 8/16![Frontier logo]()
$223
Best flights from Phoenix to SeattleDiscover carefully curated flight deals from Phoenix to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
Discover carefully curated flight deals from Phoenix to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:31 am -
Nonstop3h 08m
Mon 9/145:55 pm -
1 stop25h 00m
Deal found 8/19![Alaska Airlines logo]()
$217
This Booking.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:27 am -
Nonstop3h 10m
Sun 9/610:34 am -
1 stop7h 18m
Deal found 8/14![Multiple Airlines logo]()
$222
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:59 pm -
Nonstop3h 06m
Tue 10/612:00 pm -
Nonstop3h 04m
Deal found 8/14![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:50 pm -
Nonstop3h 10m
Wed 10/283:30 pm -
1 stop6h 00m
Deal found 8/16![Southwest logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:58 pm -
Nonstop3h 12m
Wed 11/113:58 pm -
1 stop6h 29m
Deal found 8/15![Alaska Airlines logo]()
$260
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:40 am -
2 stops7h 35m
Tue 10/65:50 am -
2 stops7h 10m
Deal found 8/14![Southwest logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:38 am -
1 stop7h 39m
Sun 10/251:40 pm -
Nonstop2h 54m
Deal found 8/19![Alaska Airlines logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:35 am -
Nonstop3h 10m
Fri 10/168:58 pm -
Nonstop2h 54m
Deal found 8/18![Alaska Airlines logo]()
$292
This Alaska Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:51 pm -
Nonstop3h 08m
Mon 9/147:18 am -
Nonstop3h 10m
Deal found 8/15![Alaska Airlines logo]()
$292
This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:38 am -
1 stop7h 39m
Sun 10/118:58 pm -
Nonstop2h 54m
Deal found 8/19![Alaska Airlines logo]()
$302
Last-minute flights from Phoenix to SeattleDiscover last-minute flight deals from Phoenix to Seattle. Data last updated August 19, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Seattle. Data last updated August 19, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:48 pm -
1 stop16h 31m
Wed 9/97:25 pm -
1 stop14h 58m
Deal found 8/17![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:20 am -
1 stop7h 50m
Wed 9/164:27 pm -
2 stops28h 07m
Deal found 8/18![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:20 am -
1 stop7h 50m
Tue 9/1510:57 am -
2 stops9h 37m
Deal found 8/18![Frontier logo]()
$221
This Frontier deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:15 am -
1 stop5h 53m
Sat 9/194:27 pm -
1 stop7h 16m
Deal found 8/15![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:39 pm -
1 stop13h 03m
Wed 9/2310:53 am -
2 stops8h 10m
Deal found 8/17![Frontier logo]()
$210
This Super.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:25 am -
1 stop8h 43m
Thu 9/174:27 pm -
1 stop7h 16m
Deal found 8/16![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:23 pm -
1 stop16h 19m
Sat 9/194:27 pm -
1 stop7h 16m
Deal found 8/15![Frontier logo]()
$219
This Priceline deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:38 pm -
Nonstop3h 08m
Fri 9/254:27 pm -
1 stop7h 16m
Deal found 8/19![Multiple Airlines logo]()
$211
This Frontier deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/199:15 am -
1 stop5h 53m
Wed 9/304:27 pm -
1 stop7h 16m
Deal found 8/17![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:20 am -
1 stop7h 50m
Wed 9/3010:53 am -
2 stops8h 10m
Deal found 8/18![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:20 am -
1 stop7h 50m
Mon 9/288:15 pm -
1 stop25h 58m
Deal found 8/19![Frontier logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:24 pm -
1 stop14h 18m
Wed 9/304:27 pm -
1 stop7h 16m
Deal found 8/16![Frontier logo]()
$223
One-way flights from Phoenix to SeattleSearch for one-way flight options from Phoenix to Seattle. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
Search for one-way flight options from Phoenix to Seattle. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:39 pm -
1 stop13h 03m
Deal found 8/18![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:39 pm -
2 stops21h 57m
Deal found 8/18![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:20 pm -
2 stops21h 25m
Deal found 8/17![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/124:14 pm -
1 stop26h 31m
Deal found 8/15![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:24 pm -
1 stop14h 18m
Deal found 8/17![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:08 am -
1 stop25h 40m
Deal found 8/17![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:23 pm -
1 stop16h 19m
Deal found 8/14![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:38 pm -
1 stop14h 10m
Deal found 8/14![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:55 pm -
2 stops15h 56m
Deal found 8/16![Frontier logo]()
$110
This Super.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:15 am -
1 stop5h 53m
Deal found 8/15![Frontier logo]()
$111
Find flight deals from Phoenix to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 19, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $210 (Kiwi.com) |
One-way from | $100 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $260 |
Cheapflights Fare Finder
Customize your flight search to find flights from Phoenix to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 19, 2026.
Use the filters below to find and compare flights from Phoenix to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhoenixSeattle
PHX Phoenix Sky Harbor Intl - SEA Seattle/Tacoma Intl
PHXSEA
Phoenix Sky Harbor Intl
Mon 9/14
11:31 am-2:39 pm
Nonstop3h 08m
Seattle/Tacoma Intl
Mon 9/14
5:55 pm-6:55 pm
1 stop25h 00m
$217
PhoenixSeattle
PHX Phoenix Sky Harbor Intl - SEA Seattle/Tacoma Intl
PHXSEA
Phoenix Sky Harbor Intl
Sat 9/5
11:27 am-2:37 pm
Nonstop3h 10m
Seattle/Tacoma Intl
Sun 9/6
10:34 am-5:52 pm
1 stop7h 18m
$222
PhoenixSeattle
PHX Phoenix Sky Harbor Intl - SEA Seattle/Tacoma Intl
PHXSEA
Phoenix Sky Harbor Intl
Wed 9/30
3:59 pm-7:05 pm
Nonstop3h 06m
Seattle/Tacoma Intl
Tue 10/6
12:00 pm-3:04 pm
Nonstop3h 04m
$257
PhoenixSeattle
PHX Phoenix Sky Harbor Intl - SEA Seattle/Tacoma Intl
PHXSEA
Phoenix Sky Harbor Intl
Wed 11/4
4:58 pm-7:10 pm
Nonstop3h 12m
Seattle/Tacoma Intl
Wed 11/11
3:58 pm-11:27 pm
1 stop6h 29m
$260
PhoenixSeattle
PHX Phoenix Sky Harbor Intl - SEA Seattle/Tacoma Intl
PHXSEA
Phoenix Sky Harbor Intl
Sat 10/10
4:50 pm-8:00 pm
Nonstop3h 10m
Seattle/Tacoma Intl
Wed 10/28
3:30 pm-9:30 pm
1 stop6h 00m
$267
PhoenixSeattle
PHX Phoenix Sky Harbor Intl - SEA Seattle/Tacoma Intl
PHXSEA
Phoenix Sky Harbor Intl
Thu 10/22
7:38 am-3:17 pm
1 stop7h 39m
Seattle/Tacoma Intl
Sun 10/25
1:40 pm-4:34 pm
Nonstop2h 54m
$270
PhoenixSeattle
PHX Phoenix Sky Harbor Intl - SEA Seattle/Tacoma Intl
PHXSEA
Phoenix Sky Harbor Intl
Wed 9/30
11:40 am-7:15 pm
2 stops7h 35m
Seattle/Tacoma Intl
Tue 10/6
5:50 am-1:00 pm
2 stops7h 10m
$287
Quickest round-trip
PhoenixSeattle
PHX Phoenix Sky Harbor Intl - SEA Seattle/Tacoma Intl
PHXSEA
Phoenix Sky Harbor Intl
Thu 10/8
11:35 am-2:45 pm
Nonstop3h 10m
Seattle/Tacoma Intl
Fri 10/16
8:58 pm-11:52 pm
Nonstop2h 54m
$292
PhoenixSeattle
PHX Phoenix Sky Harbor Intl - SEA Seattle/Tacoma Intl
PHXSEA
Phoenix Sky Harbor Intl
Fri 9/11
8:51 pm-11:59 pm
Nonstop3h 08m
Seattle/Tacoma Intl
Mon 9/14
7:18 am-10:28 am
Nonstop3h 10m
$292
PhoenixSeattle
PHX Phoenix Sky Harbor Intl - SEA Seattle/Tacoma Intl
PHXSEA
Phoenix Sky Harbor Intl
Thu 10/8
7:38 am-3:17 pm
1 stop7h 39m
Seattle/Tacoma Intl
Sun 10/11
8:58 pm-11:52 pm
Nonstop2h 54m
$302
Showing 1-10 of 20 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Phoenix-Seattle flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Phoenix-Seattle flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Phoenix-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Phoenix-Seattle flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phoenix-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Phoenix to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Phoenix with our price prediction graph.
PH1-SEA
PHX-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Phoenix to Seattle
PH1-SEA
PHX-SEA
What is the cheapest month to book a flight from Phoenix to Seattle?
Currently, January is the cheapest month in which you can book a flight from Phoenix to Seattle (average of $129). Flying from Phoenix to Seattle in July is currently the most expensive (average of $300). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PHX to SEA?
Find hourly flight availability from Phoenix to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 19, 2026.
It’s typically best to fly out from Phoenix to Seattle at noon. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.
Weekly flight availability from Phoenix to Seattle
Explore weekly flight availability from Phoenix to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 19, 2026.
The most flights from PH1 to SEA are scheduled on a Tuesday (40 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (12 on average).
How much does it cost to fly round-trip from Phoenix to Seattle?
Airfare is typical for this route at the moment.
Phoenix to Seattle flights typically cost between $209 and $304 in September.The cheapest round-trip price found within the last 5 days was $210 on Frontier (Sep 16-Sep 23).
How often are flights from Phoenix to Seattle delayed?
About 10% of weekly flights between Phoenix and Seattle have experienced delays in the past year, with the average delay time being 141 minutes.
What is the most punctual flight time for Phoenix to Seattle flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Phoenix to Seattle flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 7% of flights being delayed.
How far ahead should I book a flight from Phoenix to Seattle?
The best time to book flights from Phoenix to Seattle is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Phoenix to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Phoenix to Seattle. Price data was last updated on August 15, 2026.
Travelers seeking maximum savings on their Phoenix to Seattle flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated August 19, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Phoenix to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Phoenix to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Tukwila
Olympia
Edmonds
Snoqualmie
Lynnwood
Tumwater
Centralia
Puyallup
Kent
Marysville
Ellensburg
Ocean Shores
Lakewood
Fife
Poulsbo
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Seattle flight routes
Alternative routes for Phoenix to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Phoenix to Seattle by cabin class
Find flights from Phoenix to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Phoenix and Seattle flights
Browse other Phoenix and Seattle flight options. Last updated on August 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 19, 2026.
Top 7 airlines flying from Phoenix to Seattle
Discover the top 7 airlines that operate flights from Phoenix to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$163 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$79 | Average$229 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$99 | Average$247 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$106 | Average$266 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$266 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$120 | Average$283 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$177 | Average$249 | FlexibilityNo cancel fee | On-time62% |