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$54+ 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Seattle/Tacoma Intl are usually found in January or February, booked 83 days in advance, depart on a Friday or Thursday and return on a Wednesday

Find flight deals from Phoenix to Seattle

Cheapest flights from Phoenix to Seattle
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 October 30, 2025.

This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:42 pmPHX - SEA
Nonstop3h 19mFrontier
Sun 12/1412:48 pmSEA - PHX
1 stop21h 17mFrontier
Deal found 10/29$99
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sat 11/156:20 amPHX - SEA
Nonstop3h 14mAlaska Airlines
Mon 11/173:55 pmSEA - PHX
Nonstop2h 55mAlaska Airlines
Deal found 10/29$101
This Priceline deal was found by Cheapflights users on 10/30. 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.
Thu 12/117:00 amPHX - SEA
1 stop5h 53mFrontier
Mon 1/57:48 pmSEA - PHX
Nonstop3h 02mFrontier
Deal found 10/30$102
This Priceline deal was found by Cheapflights users on 10/30. 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 12/51:42 pmPHX - SEA
Nonstop3h 19mFrontier
Mon 12/85:21 pmSEA - PHX
Nonstop2h 59mFrontier
Deal found 10/30$103
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Fri 11/212:20 pmPHX - SEA
Nonstop3h 17mFrontier
Mon 11/241:01 pmSEA - PHX
1 stop10h 31mFrontier
Deal found 10/29$105
This Frontier deal was found by Cheapflights users on 10/29. 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.
Tue 11/252:20 pmPHX - SEA
Nonstop3h 17mFrontier
Thu 12/41:09 pmSEA - PHX
1 stop10h 35mFrontier
Deal found 10/29$106
This Southwest deal was found by Cheapflights users on 10/29. 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.
Thu 12/189:50 pmPHX - SEA
Nonstop3h 15mSouthwest
Sat 1/35:30 amSEA - PHX
1 stop5h 00mSouthwest
Deal found 10/29$107
This Orbitz deal was found by Cheapflights users on 10/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:00 amPHX - SEA
1 stop5h 56mMultiple Airlines
Wed 12/35:30 pmSEA - PHX
Nonstop2h 55mMultiple Airlines
Deal found 10/29$109
This Priceline deal was found by Cheapflights users on 10/30. 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.
Sat 11/152:10 pmPHX - SEA
1 stop5h 22mFrontier
Tue 11/181:37 pmSEA - PHX
1 stop7h 21mFrontier
Deal found 10/30$110
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:00 amPHX - SEA
Nonstop3h 18mFrontier
Sat 11/157:17 pmSEA - PHX
1 stop27h 12mFrontier
Deal found 10/29$112
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:00 amPHX - SEA
1 stop9h 45mFrontier
Sat 1/101:31 pmSEA - PHX
Nonstop3h 00mFrontier
Deal found 10/29$115

Cheap 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 October 30, 2025.

Round-trip from

$99
(CheapOair)

One-way from

$54
(Southwest)

Popular in

March

Cheapest in

January

Average price

$186
From Phoenix to Seattle/Tacoma Intl
Search Deals
One-way flight from Phoenix to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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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 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Phoenix to Seattle that are best for you.

Fly from

Phoenix

Fly to

Seattle

Route

Depart

Return

Price

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Tue 12/23

10:45 pm-12:55 am

Nonstop3h 10m

Seattle/Tacoma Intl

Tue 12/30

7:00 am-2:25 pm

1 stop6h 25m

$107

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 1/17

8:55 am-11:05 am

Nonstop3h 10m

Seattle/Tacoma Intl

Mon 1/26

6:05 am-2:40 pm

1 stop7h 35m

$107

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Thu 12/11

1:50 pm-6:20 pm

1 stop5h 30m

Seattle/Tacoma Intl

Sun 12/21

7:55 pm-11:45 pm

Nonstop2h 50m

$107

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Thu 12/4

7:05 am-11:35 am

1 stop5h 30m

Seattle/Tacoma Intl

Mon 12/8

5:15 am-9:00 am

Nonstop2h 45m

$107

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Fri 12/12

9:50 pm-12:05 am

Nonstop3h 15m

Seattle/Tacoma Intl

Tue 12/16

7:05 am-2:10 pm

1 stop6h 05m

$107

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Thu 12/4

8:45 pm-10:55 pm

Nonstop3h 10m

Seattle/Tacoma Intl

Fri 12/5

5:40 am-2:10 pm

2 stops7h 30m

$112

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 12/13

2:15 pm-4:36 pm

Nonstop3h 21m

Seattle/Tacoma Intl

Sun 1/4

8:05 pm-11:59 pm

Nonstop2h 54m

$122

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sun 1/25

1:20 pm-5:40 pm

1 stop5h 20m

Seattle/Tacoma Intl

Mon 1/26

9:30 am-7:55 pm

2 stops9h 25m

$122

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Thu 12/18

2:15 pm-7:40 pm

1 stop6h 25m

Seattle/Tacoma Intl

Fri 1/9

12:45 pm-7:55 pm

2 stops6h 10m

$122

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Thu 12/4

7:00 am-12:14 pm

1 stop6h 14m

Seattle/Tacoma Intl

Sun 12/7

12:48 pm-12:44 am

1 stop10h 56m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 21 results
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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.
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

How far ahead should I book a flight from Phoenix to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Phoenix to Seattle. Price data was last updated on October 24, 2025.

The best time to book flights from Phoenix to Seattle is 83 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 month to book a flight from Phoenix to Seattle?

Currently, February is the cheapest month in which you can book a flight from Phoenix to Seattle (average of $38). Flying from Phoenix to Seattle in July is currently the most expensive (average of $89). 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 October 30, 2025.

It’s typically best to fly out from Phoenix to Seattle at noon. Doing so could potentially save you 46% on the flight price compared to flying in the evening, which is usually more expensive.

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 December 16, 2024.

Travelers seeking maximum savings on their Phoenix to Seattle flight should consider departing on Saturday evenings when fares are most often at their lowest. Wednesday evenings 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 October 30, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
11,214 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
7.9
Good
7,993 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,797 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Frontier
5.8
Fair
3,123 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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.

  • What airport do you fly into for flights to Seattle from Phoenix?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Phoenix. On average, Seattle/Tacoma Intl has 18 inbound flights from Phoenix per day from 6 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How long is the flight from Phoenix to Seattle?

    There are many flights that can get you from Phoenix to Seattle in 3h 10m. Fly via Southwest to get the fastest option. The distance from Phoenix to Seattle is about 1107 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Phoenix to Seattle round-trip?

    Cheapflights users have booked flights from Phoenix to Seattle round-trip from $53. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from $84, and Alaska Airlines, from $97. Frontier is 71% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Phoenix to Seattle?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Phoenix to Seattle on time: WestJet (95%), Frontier (91%), Delta (90%).

  • What are the cheapest flights from Phoenix to Seattle?

    The cheapest flight price from Phoenix to Seattle is $48. On average you can expect to pay $800. The most popular route, (Phoenix Sky Harbor Intl - Seattle/Tacoma Intl), can usually be booked for $76.

  • Can I find deals for flights from Phoenix to Seattle that include hotel bookings?

    Yes. In addition to deals on Phoenix to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Phoenix to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phoenix to Seattle.

  • Can I find deals for business class flights from Phoenix to Seattle?

    Yes. Cheapflights offers flight deals from Phoenix to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Phoenix to Seattle (average of $38). Flying from Phoenix to Seattle in July is currently the most expensive (average of $89). 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

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Alternative routes for Phoenix to Seattle

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Top 6 airlines flying from Phoenix to Seattle

Discover the top 6 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 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$53Average$151FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$84Average$196FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$97Average$213FlexibilityNo cancel feeOn-time75%
DeltaCheapest$97Average$202FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$135Average$217FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$142Average$270FlexibilityNo cancel feeOn-time71%

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