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Cheap flights from Seattle to Phoenix Sky Harbor Intl Airport from £88

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PHX
2 Sep — 9 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl are usually found in January or September, booked 72 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Seattle to Sky Harbor Intl

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Sky Harbor Intl
Explore the most affordable flight options available from Seattle to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 August 2026.

Thu 27/809:57
SEA
-
PHX
Nonstop3h 05m
Alaska Airlines
Thu 27/816:06
PHX
-
SEA
Nonstop3h 08m
Alaska Airlines
Deal found 29/7£142
Thu 27/810:34
SEA
-
PHX
1 stop7h 18m
Frontier
Thu 3/909:03
PHX
-
SEA
1 stop6h 25m
Frontier
Deal found 30/7£145
Tue 25/820:30
SEA
-
PHX
Nonstop3h 03m
Delta
Wed 26/806:59
PHX
-
SEA
Nonstop3h 06m
Delta
Deal found 29/7£146
Wed 26/813:30
SEA
-
PHX
Nonstop3h 11m
Delta
Wed 2/917:42
PHX
-
SEA
Nonstop3h 06m
Delta
Deal found 29/7£150
Sat 19/907:40
SEA
-
PHX
1 stop11h 27m
Alaska Airlines
Wed 23/907:08
PHX
-
SEA
1 stop10h 43m
Alaska Airlines
Deal found 31/7£150
Tue 3/1115:35
SEA
-
PHX
Nonstop2h 58m
Delta
Wed 11/1108:40
PHX
-
SEA
Nonstop3h 20m
Delta
Deal found 29/7£153
Tue 29/907:18
SEA
-
PHX
Nonstop3h 10m
Alaska Airlines
Sat 3/1006:02
PHX
-
SEA
Nonstop3h 10m
Alaska Airlines
Deal found 29/7£154
Tue 25/807:21
SEA
-
PHX
Nonstop3h 03m
Alaska Airlines
Tue 1/919:49
PHX
-
SEA
1 stop16h 50m
Alaska Airlines
Deal found 31/7£156
Tue 25/809:25
SEA
-
PHX
2 stops8h 50m
Southwest
Fri 28/821:45
PHX
-
SEA
Nonstop2h 55m
Southwest
Deal found 30/7£157
Thu 27/809:57
SEA
-
PHX
Nonstop3h 05m
Alaska Airlines
Thu 3/920:51
PHX
-
SEA
Nonstop3h 08m
Alaska Airlines
Deal found 30/7£158
Sat 17/1015:10
SEA
-
PHX
Nonstop2h 50m
Alaska Airlines
Sat 24/1015:42
PHX
-
SEA
1 stop5h 51m
Alaska Airlines
Deal found 29/7£159

Find flight deals from Seattle to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Sky Harbor Intl (PHX). 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 3 August 2026.

Round-trip from

£142

One-way from

£88

Popular in

June

Cheapest in

January

Average price

£169
Alaska Airlines
  • Alaska Airlines
  • 27/8-27/8
  • Nonstop
  • 6h 13m total
  • Seattle to Phoenix
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 2/9
  • Nonstop
  • 3h 08m total
  • Seattle to Phoenix
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seattle to Sky Harbor Intl 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 858,174 searches. Data last updated 3 August 2026.
Use the filters below to find and compare flights from Seattle to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sun 15/11

07:30-11:34

Nonstop3h 04m

Phoenix Sky Harbor Intl

Wed 18/11

12:35-14:44

Nonstop3h 09m

£165

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 26/8

12:40-17:35

1 stop4h 55m

Phoenix Sky Harbor Intl

Wed 2/9

13:30-21:00

1 stop7h 30m

£165

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 19/8

13:45-16:55

Nonstop3h 10m

Phoenix Sky Harbor Intl

Wed 26/8

15:35-20:15

1 stop4h 40m

£165

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sat 7/11

08:45-12:49

Nonstop3h 04m

Phoenix Sky Harbor Intl

Tue 10/11

20:51-09:28

1 stop13h 37m

£171

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 19/8

15:30-21:08

1 stop5h 38m

Phoenix Sky Harbor Intl

Sun 23/8

08:57-14:24

1 stop5h 27m

£176

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 30/9

11:55-15:10

Nonstop3h 15m

Phoenix Sky Harbor Intl

Sat 3/10

06:02-09:12

Nonstop3h 10m

£176

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 14/10

11:31-20:41

1 stop9h 10m

Phoenix Sky Harbor Intl

Sun 18/10

14:41-17:53

Nonstop3h 12m

£178

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 14/10

11:31-20:41

1 stop9h 10m

Phoenix Sky Harbor Intl

Fri 23/10

09:02-12:14

Nonstop3h 12m

£178
Fastest return journey

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 14/10

11:30-14:20

Nonstop2h 50m

Phoenix Sky Harbor Intl

Sun 18/10

07:50-10:55

Nonstop3h 05m

£183

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 4/9

13:30-16:41

Nonstop3h 11m

Phoenix Sky Harbor Intl

Mon 7/9

06:59-10:05

Nonstop3h 06m

£191

Flights are sorted by cheapest return flights first.

Deals found on 2/8

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from Seattle with our price prediction graph.
Estimated return 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 Seattle to Phoenix Sky Harbor Intl Airport

How far ahead should I book a flight from Seattle to Phoenix Sky Harbor Intl Airport?

To ensure you get the cheapest price possible for a flight from Seattle to Phoenix Sky Harbor Intl Airport, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Seattle to Phoenix Sky Harbor Intl Airport (average of £137). Flying from Seattle to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of £218). 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 SEA to PHX?

Find hourly flight availability from Seattle to Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 August 2026.

When flying from Seattle to Phoenix Sky Harbor Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 47% versus a flight in the morning.

How much does it cost for a return flight from Seattle to Phoenix Sky Harbor Intl Airport?

Airfare is typical for this route at the moment.

Seattle to Phoenix Sky Harbor Intl Airport flights typically cost between £130 and £206 in August.
The cheapest return price found within the last 5 days was £142 on Alaska Airlines (27 Aug–27 Aug).

Related info for your journey

Find useful and relevant information for your journey from Seattle to Sky Harbor Intl. 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 from for flights from Seattle to Phoenix Sky Harbor Intl?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Phoenix Sky Harbor Intl from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Phoenix Sky Harbor Intl should be relatively easy as there are 24 daily outbound flights to Phoenix Sky Harbor Intl from 0 different airlines.

  • How long is the flight from Seattle to Phoenix Sky Harbor Intl Airport?

    A quick flight from Seattle to Phoenix Sky Harbor Intl Airport can take about 3h 01m. Delta provides one of the quickest options available for as low as £146. Seattle and Phoenix Sky Harbor Intl Airport are separated by a distance of 1107 mi. Most flights are nonstop.

  • What are the most reliable airlines from Seattle to Phoenix Sky Harbor Intl Airport?

    The top 3 most reliable airlines when flying from Seattle to Phoenix Sky Harbor Intl Airport are Air France (89%), KLM (84%) and Qatar Airways (83%).

  • Can I find deals for flights from Seattle to Sky Harbor Intl that include hotel bookings?

    Yes. In addition to deals on Seattle to Sky Harbor Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Sky Harbor Intl?

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

  • Can I find deals for business class flights from Seattle to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Seattle to Sky Harbor Intl 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 Seattle to Phoenix Sky Harbor Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Phoenix Sky Harbor Intl Airport (average of £137). Flying from Seattle to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of £218). 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

Travelling to a place near Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Glendale

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Alternative routes for Seattle to Sky Harbor Intl

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Sky Harbor Intl flights

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How does Cheapflights help users find flights from Seattle to Sky Harbor Intl?

When you search for this flight from Seattle to Sky Harbor Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Sky Harbor Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to Sky Harbor Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Seattle to Sky Harbor Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Sky Harbor Intl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Seattle to Sky Harbor Intl become cheaper?

Of course! You can now track prices for flights from Seattle to Sky Harbor Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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