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Cheap flights from Seattle to Phoenix Sky Harbor Intl Airport from C$ 96

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PHX
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl are usually found in January or August, booked 86 days in advance, depart on a Monday or Tuesday and return on a Saturday

Cheap 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 17 September 2025.

Round-trip from

C$ 153

One-way from

C$ 96

Popular in

December

Cheapest in

January

Average price

C$ 239
Frontier
  • Frontier
  • 3/10-5/10
  • Nonstop
  • 6h 13m total
  • Seattle to Phoenix
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Delta
  • Delta
  • 14/10
  • Nonstop
  • 2h 51m total
  • Seattle to Phoenix
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Seattle to Sky Harbor Intl

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 17 September 2025.

Fri 3/108:31 p.m.SEA - PHX
Nonstop2h 58mFrontier
Sun 5/106:05 a.m.PHX - SEA
Nonstop3h 15mFrontier
Deal found 16/9C$ 153
Sat 18/107:35 p.m.SEA - PHX
Nonstop2h 51mDelta
Tue 21/103:40 p.m.PHX - SEA
Nonstop3h 11mDelta
Deal found 17/9C$ 183
Tue 14/107:35 p.m.SEA - PHX
Nonstop2h 51mDelta
Tue 21/1011:01 a.m.PHX - SEA
Nonstop3h 19mDelta
Deal found 17/9C$ 187
Wed 22/105:00 p.m.SEA - PHX
1 stop5h 20mSouthwest
Sun 26/1010:10 p.m.PHX - SEA
Nonstop3h 00mSouthwest
Deal found 16/9C$ 197
Wed 12/111:37 p.m.SEA - PHX
1 stop17h 47mFrontier
Fri 14/117:25 a.m.PHX - SEA
1 stop7h 12mFrontier
Deal found 17/9C$ 198
Tue 23/97:00 a.m.SEA - PHX
1 stop14h 53mFrontier
Tue 30/98:00 a.m.PHX - SEA
1 stop14h 59mFrontier
Deal found 16/9C$ 199
Tue 14/104:40 p.m.SEA - PHX
1 stop4h 35mSouthwest
Tue 21/109:00 a.m.PHX - SEA
Nonstop3h 15mSouthwest
Deal found 16/9C$ 201
Fri 12/126:45 p.m.SEA - PHX
1 stop4h 20mSouthwest
Sun 14/126:00 a.m.PHX - SEA
1 stop5h 20mSouthwest
Deal found 17/9C$ 209

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from Seattle to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Seattle

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 19/11

5:15 a.m.-9:00 a.m.

Nonstop2h 45m

Phoenix Sky Harbor Intl

Sun 23/11

9:50 p.m.-12:05 a.m.

Nonstop3h 15m

C$ 220

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sat 8/11

7:30 p.m.-11:21 p.m.

Nonstop2h 51m

Phoenix Sky Harbor Intl

Wed 12/11

2:45 p.m.-5:00 p.m.

Nonstop3h 15m

C$ 246

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sat 8/11

7:30 p.m.-11:21 p.m.

Nonstop2h 51m

Phoenix Sky Harbor Intl

Tue 11/11

7:56 p.m.-10:16 p.m.

Nonstop3h 20m

C$ 246

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Mon 2/3

3:20 p.m.-7:12 p.m.

Nonstop2h 52m

Phoenix Sky Harbor Intl

Wed 4/3

2:50 p.m.-5:00 p.m.

Nonstop3h 10m

C$ 253

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sun 23/11

4:59 p.m.-8:48 p.m.

Nonstop2h 49m

Phoenix Sky Harbor Intl

Thu 27/11

7:00 a.m.-9:18 a.m.

Nonstop3h 18m

C$ 257

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sat 8/11

5:00 a.m.-2:25 p.m.

1 stop8h 25m

Phoenix Sky Harbor Intl

Sun 9/11

9:50 p.m.-12:05 a.m.

Nonstop3h 15m

C$ 266

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Mon 24/11

8:05 p.m.-11:59 p.m.

Nonstop2h 54m

Phoenix Sky Harbor Intl

Tue 2/12

4:16 p.m.-9:43 p.m.

1 stop6h 27m

C$ 272

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sat 29/11

8:40 a.m.-12:32 p.m.

Nonstop2h 52m

Phoenix Sky Harbor Intl

Tue 2/12

4:16 p.m.-9:43 p.m.

1 stop6h 27m

C$ 278

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 28/11

6:45 a.m.-10:34 a.m.

Nonstop2h 49m

Phoenix Sky Harbor Intl

Tue 2/12

4:16 p.m.-8:39 p.m.

1 stop5h 23m

C$ 278

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 29/10

5:00 p.m.-10:20 p.m.

1 stop5h 20m

C$ 105

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/9

Showing 1-10 of 21 results
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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 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 Seattle to Phoenix Sky Harbor Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Sky Harbor Intl. Price data was last updated on 12 September 2025.

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 86 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, September is the cheapest month in which you can book a flight from Seattle to Phoenix Sky Harbor Intl Airport (average of C$ 247). Flying from Seattle to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of C$ 316). 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 17 September 2025.

It’s typically best to fly out from Seattle to Phoenix Sky Harbor Intl Airport in the evening. Doing so could potentially save you 39% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Seattle to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Sky Harbor Intl. Price data was last updated on 14 September 2025.

Travelers seeking maximum savings on their Seattle to Phoenix Sky Harbor Intl Airport flight should consider departing on Saturday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. 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 Sky Harbor Intl. Reviews last updated 17 September 2025.
Read through reviews of airlines operating flights from Seattle to Phoenix Sky Harbor Intl Airport, such as Alaska Airlines,Southwest, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Frontier
5.8
Fair
3,173 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Phoenix Sky Harbor Intl. On average, Seattle/Tacoma Intl has 33 outbound flights to Phoenix Sky Harbor Intl per day from 5 airlines. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.

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

    Airlines like Southwest and Delta fly from Seattle to Phoenix Sky Harbor Intl Airport in about 2h 45m. The time it takes to get you to your destination is usually consistent. The distance between Seattle and Phoenix Sky Harbor Intl Airport is about 1782 km. Generally, flights for this route are direct.

  • What are the cheapest airlines flying from Seattle to Phoenix Sky Harbor Intl Airport round-trip?

    Cheapflights users have booked flights from Seattle to Phoenix Sky Harbor Intl Airport round-trip from C$ 60. Other airlines that can offer you cheap pricing are Delta, from C$ 101, and Alaska Airlines, from C$ 132. Users have found that Frontier is 79% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Phoenix Sky Harbor Intl Airport one-way?

    C$ 105 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Alaska Airlines and Hawaiian Airlines, with prices starting from C$ 124 and C$ 124, respectively.

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

    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 Seattle to Phoenix Sky Harbor Intl Airport on time: KLM (100%), LATAM Airlines (100%), Aeromexico (98%).

  • 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 vacation 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, September is the cheapest month in which you can book a flight from Seattle to Phoenix Sky Harbor Intl Airport (average of C$ 247). Flying from Seattle to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of C$ 316). 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
Wickenburg
Litchfield Park
Peoria
Fountain Hills

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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.
Bellingham to Sky Harbor Intl flights
Spokane to Sky Harbor Intl flights
Bellingham to Phoenix-Mesa Gateway flights

Top 5 airlines flying from Seattle to Sky Harbor Intl

Discover the top 5 airlines that operate flights from Seattle to Sky Harbor Intl. 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 629,999 searches. Data last updated 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 60AverageC$ 185FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 101AverageC$ 237FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapestC$ 132AverageC$ 380FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
SouthwestCheapestC$ 169AverageC$ 398FlexibilityNo cancel feeOn-time63%
Search Southwest flights
American AirlinesCheapestC$ 190AverageC$ 367FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Seattle to Sky Harbor Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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?

Yes, we can. To see specific flights from Seattle to Sky Harbor Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Seattle to Sky Harbor Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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