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$79+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SEA
Oct 13 — Oct 201
Mon 10/13
Mon 10/20
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Seattle/Tacoma Intl are usually found in January or October, booked 63 days in advance, depart on a Friday or Thursday and return on a Wednesday

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 September 13, 2025.

Round-trip from

$98
(Trip.com)

One-way from

$79
(CheapOair)

Popular in

March

Cheapest in

January

Average price

$167
From Phoenix to Seattle/Tacoma Intl
Search Deals
One-way flight from Phoenix to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 4% potential increase in price ($8 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 13, 2025.

This Trip.com deal was found by Cheapflights users on 9/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/105:53 pmPHX - SEA
Nonstop3h 15mMultiple Airlines
Tue 10/147:05 amSEA - PHX
Nonstop3h 00mMultiple Airlines
Deal found 9/12$98
This Trip.com deal was found by Cheapflights users on 9/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:00 amPHX - SEA
Nonstop3h 18mAlaska Airlines
Tue 10/212:02 pmSEA - PHX
Nonstop2h 57mAlaska Airlines
Deal found 9/11$99
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/89:00 amPHX - SEA
Nonstop3h 15mMultiple Airlines
Fri 10/1710:00 pmSEA - PHX
Nonstop2h 59mMultiple Airlines
Deal found 9/10$101
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 9/256:05 amPHX - SEA
Nonstop3h 15mFrontier
Mon 9/298:31 pmSEA - PHX
Nonstop3h 00mFrontier
Deal found 9/12$102
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 9/216:05 amPHX - SEA
Nonstop3h 15mFrontier
Fri 9/268:31 pmSEA - PHX
Nonstop3h 00mFrontier
Deal found 9/12$103
This Delta deal was found by Cheapflights users on 9/11. 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 10/157:06 pmPHX - SEA
Nonstop3h 18mDelta
Wed 10/227:35 pmSEA - PHX
Nonstop2h 51mDelta
Deal found 9/11$105
This Priceline deal was found by Cheapflights users on 9/11. 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 12/122:30 pmPHX - SEA
Nonstop3h 21mFrontier
Sat 1/101:31 pmSEA - PHX
Nonstop3h 00mFrontier
Deal found 9/11$106
This Orbitz deal was found by Cheapflights users on 9/11. 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.
Fri 10/36:05 amPHX - SEA
Nonstop3h 15mMultiple Airlines
Tue 10/77:05 amSEA - PHX
Nonstop3h 00mMultiple Airlines
Deal found 9/11$107
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/175:53 pmPHX - SEA
Nonstop3h 15mMultiple Airlines
Tue 10/218:05 amSEA - PHX
Nonstop3h 04mMultiple Airlines
Deal found 9/11$108
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 11/66:00 amPHX - SEA
Nonstop3h 18mMultiple Airlines
Tue 11/117:00 amSEA - PHX
Nonstop2h 55mMultiple Airlines
Deal found 9/11$109
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/149:00 amPHX - SEA
Nonstop3h 15mMultiple Airlines
Fri 10/2410:00 pmSEA - PHX
Nonstop2h 59mMultiple Airlines
Deal found 9/11$110
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 11/46:20 amPHX - SEA
Nonstop3h 14mMultiple Airlines
Mon 11/108:22 pmSEA - PHX
Nonstop3h 02mMultiple Airlines
Deal found 9/11$111

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 September 13, 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

Wed 11/19

8:00 am-10:20 am

Nonstop3h 20m

Seattle/Tacoma Intl

Wed 12/3

3:15 pm-7:05 pm

Nonstop2h 50m

$105

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Tue 10/14

7:05 am-10:20 am

Nonstop3h 15m

Seattle/Tacoma Intl

Tue 10/21

9:55 am-12:52 pm

Nonstop2h 57m

$105

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Wed 11/19

7:05 am-11:35 am

1 stop5h 30m

Seattle/Tacoma Intl

Wed 12/3

5:15 am-9:00 am

Nonstop2h 45m

$115

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 10/11

3:40 pm-6:51 pm

Nonstop3h 11m

Seattle/Tacoma Intl

Tue 10/14

7:10 am-10:06 am

Nonstop2h 56m

$127

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Tue 10/14

7:05 am-10:20 am

Nonstop3h 15m

Seattle/Tacoma Intl

Sat 10/18

7:35 pm-10:26 pm

Nonstop2h 51m

$127

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Thu 10/9

3:40 pm-6:51 pm

Nonstop3h 11m

Seattle/Tacoma Intl

Tue 10/14

7:10 am-10:06 am

Nonstop2h 56m

$127

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Thu 10/2

5:30 am-8:38 am

Nonstop3h 08m

Seattle/Tacoma Intl

Tue 10/7

3:20 pm-6:08 pm

Nonstop2h 48m

$129

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Fri 10/10

7:06 pm-10:24 pm

Nonstop3h 18m

Seattle/Tacoma Intl

Tue 10/14

7:10 am-10:06 am

Nonstop2h 56m

$130

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Fri 10/3

7:10 pm-10:24 pm

Nonstop3h 14m

Seattle/Tacoma Intl

Tue 10/7

9:55 am-12:52 pm

Nonstop2h 57m

$132

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Tue 10/7

8:00 pm-11:00 pm

Nonstop3h 00m

Seattle/Tacoma Intl

Thu 10/9

8:05 am-1:05 pm

1 stop5h 00m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 22 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 August 29, 2025.

The best time to book flights from Phoenix to Seattle is 63 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, January is the cheapest month in which you can book a flight from Phoenix to Seattle (average of $238). Flying from Phoenix to Seattle in June is currently the most expensive (average of $388). 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 September 13, 2025.

It’s typically best to fly out from Phoenix to Seattle at noon. Doing so could potentially save you 49% 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 Friday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 13, 2025.

The most flights from PH1 to SEA are scheduled on a Friday (58 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 on average).

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 September 13, 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
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

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
4,247 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

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
8.0
Very good
7,959 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

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
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

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
3,176 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

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 43 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 20m. Fly via Delta or Southwest to get the fastest option. The distance from Phoenix to Seattle is about 1107 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $87, 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 cheapest airlines to fly from Phoenix to Seattle one-way?

    One-way options have recently been found by users for as low as $80 on Southwest. Other airlines that offer cheap prices include Alaska Airlines from $82 and Delta from $82 one-way.

  • 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 (93%), Condor (92%), Frontier (92%).

  • What are the cheapest flights from Phoenix to Seattle?

    The cheapest flight price from Phoenix to Seattle is $79. On average you can expect to pay $780. The most popular route, (Phoenix Sky Harbor Intl - Seattle/Tacoma Intl), can usually be booked for $96.

  • 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, January is the cheapest month in which you can book a flight from Phoenix to Seattle (average of $238). Flying from Phoenix to Seattle in June is currently the most expensive (average of $388). 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
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Lacey
Renton
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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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 September 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$53Average$157FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$87Average$193FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$97Average$217FlexibilityNo cancel feeOn-time75%
DeltaCheapest$98Average$201FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$108Average$206FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$143Average$280FlexibilityNo cancel feeOn-time71%

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