HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sky Harbor Intl

$61+ Cheap flights from Seattle (SEA) to Sky Harbor Intl (PHX)

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PHX
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Sky Harbor Intl 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 Seattle/Tacoma Intl to Phoenix Sky Harbor Intl are usually found in January or August, booked 71 days in advance, depart on a Wednesday or Monday and return on a Friday

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 October 30, 2025.

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.
Wed 11/195:15 amSEA - PHX
Nonstop2h 45mSouthwest
Wed 12/37:05 amPHX - SEA
1 stop5h 30mSouthwest
Deal found 10/29$107
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 12/54:46 pmSEA - PHX
Nonstop2h 58mFrontier
Sun 12/77:00 amPHX - SEA
1 stop5h 53mFrontier
Deal found 10/30$108
This Expedia deal was found by Cheapflights users on 10/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1512:58 pmSEA - PHX
1 stop6h 49mMultiple Airlines
Tue 12/166:00 amPHX - SEA
Nonstop3h 14mMultiple Airlines
Deal found 10/28$109
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/612:48 pmSEA - PHX
1 stop10h 56mFrontier
Sat 12/137:43 pmPHX - SEA
1 stop15h 13mFrontier
Deal found 10/30$110
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/612:48 pmSEA - PHX
1 stop10h 56mFrontier
Mon 12/87:00 amPHX - SEA
1 stop5h 53mFrontier
Deal found 10/28$111
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/158:22 pmSEA - PHX
Nonstop3h 02mFrontier
Tue 11/189:59 amPHX - SEA
1 stop27h 08mFrontier
Deal found 10/30$112
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/158:22 pmSEA - PHX
Nonstop3h 02mFrontier
Mon 11/1710:53 pmPHX - SEA
1 stop14h 14mFrontier
Deal found 10/30$113
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.
Mon 11/1711:43 amSEA - PHX
1 stop8h 08mMultiple Airlines
Thu 12/49:00 amPHX - SEA
Nonstop3h 24mMultiple Airlines
Deal found 10/29$115
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.
Fri 11/216:45 pmSEA - PHX
1 stop4h 20mSouthwest
Mon 11/245:40 pmPHX - SEA
1 stop6h 15mSouthwest
Deal found 10/29$116
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:54 pmSEA - PHX
Nonstop2h 55mAlaska Airlines
Sun 12/77:00 amPHX - SEA
Nonstop3h 19mAlaska Airlines
Deal found 10/29$117
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.
Wed 11/193:55 pmSEA - PHX
Nonstop2h 55mMultiple Airlines
Wed 12/37:43 pmPHX - SEA
1 stop15h 23mMultiple Airlines
Deal found 10/29$118
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.
Mon 11/178:22 pmSEA - PHX
Nonstop3h 02mFrontier
Thu 11/207:29 pmPHX - SEA
1 stop17h 27mFrontier
Deal found 10/29$119

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 October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$107
(Southwest)

One-way from

$61
(CheapOair)

Popular in

December

Cheapest in

January

Average price

$223

Good round-trip deal

$183 or less

Good one-way deal

$90 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Phoenix Sky Harbor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Phoenix Sky Harbor Intl flights.
Search Deals
From Seattle/Tacoma Intl to Phoenix Sky Harbor Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl.
Search Deals

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 2,558,603 searches. Data last updated October 30, 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 12/3

6:15 am-2:40 pm

2 stops7h 25m

Phoenix Sky Harbor Intl

Tue 12/9

8:45 pm-10:55 pm

Nonstop3h 10m

$112

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Thu 12/4

6:15 am-2:40 pm

2 stops7h 25m

Phoenix Sky Harbor Intl

Sun 12/7

7:55 am-10:10 am

Nonstop3h 15m

$112

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 12/12

7:25 am-2:45 pm

1 stop6h 20m

Phoenix Sky Harbor Intl

Tue 12/16

10:00 am-2:25 pm

1 stop5h 25m

$116

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Tue 11/18

10:50 am-5:45 pm

1 stop5h 55m

Phoenix Sky Harbor Intl

Tue 11/25

8:20 pm-1:25 am

1 stop6h 05m

$116

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Thu 12/4

5:30 pm-9:25 pm

Nonstop2h 55m

Phoenix Sky Harbor Intl

Sun 12/7

7:00 am-9:19 am

Nonstop3h 19m

$117

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 12/17

8:22 am-12:23 pm

Nonstop3h 01m

Phoenix Sky Harbor Intl

Mon 12/22

10:37 pm-12:53 am

Nonstop3h 16m

$137

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Thu 12/11

8:22 am-12:23 pm

Nonstop3h 01m

Phoenix Sky Harbor Intl

Mon 12/15

8:00 am-10:24 am

Nonstop3h 24m

$137

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Thu 12/4

8:22 am-12:23 pm

Nonstop3h 01m

Phoenix Sky Harbor Intl

Tue 12/9

3:23 pm-8:35 pm

1 stop6h 12m

$153

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 11/19

7:15 am-1:34 pm

1 stop5h 19m

Phoenix Sky Harbor Intl

Mon 11/24

10:29 pm-12:44 am

Nonstop3h 15m

$157

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 11/21

8:05 pm-11:59 pm

Nonstop2h 54m

Phoenix Sky Harbor Intl

Mon 11/24

10:29 pm-12:44 am

Nonstop3h 15m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Seattle to Sky Harbor Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Sky Harbor Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Phoenix Sky Harbor Intl Airport flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Seattle-Phoenix Sky Harbor Intl Airport flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Seattle-Phoenix Sky Harbor Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Phoenix Sky Harbor Intl Airport flights, Cheapflights users trust CheapOair the most. CheapOair 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 Seattle-Phoenix Sky Harbor Intl Airport 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 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 October 24, 2025.

The best time to book flights from Seattle to Phoenix Sky Harbor Intl Airport is 71 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 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 $48). Flying from Seattle to Phoenix Sky Harbor Intl Airport in July is currently the most expensive (average of $88). 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 October 30, 2025.

One of the essential ways to save on airfare from Seattle to Phoenix Sky Harbor Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 29% on airfare.

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 October 26, 2025.

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

The best insider tips for Seattle to Phoenix Sky Harbor Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Phoenix Sky Harbor Intl Airport trip
Airlines
Frontier

Frontier’s UpFront Plus seats offer extra comfort with a guaranteed empty middle seat.


Early morning flights have a better chance of on-time departure and arrival.

Read more about Frontierby Marisa Garcia
Alaska Airlines

Alaska’s Wi-Fi is a bargain, allowing work during flights.


Alaska’s Premium Class offers extra legroom and free cocktails.

Read more about Alaska Airlinesby Robert Schrader
Airports
SEA

Use SEA Spot Saver to schedule security screening appointments in advance, reducing wait times without needing TSA PreCheck or CLEAR.

Read more about SEAby Brandon Schultz
PHX

Take the PHX Sky Train to 44th Street Station for quick, inexpensive access to downtown Phoenix via light rail.

Read more about PHXby Brandon Schultz
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Brandon Schultz

Brandon Schultz

Expert on PHX and SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

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 October 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Seattle to Phoenix Sky Harbor Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

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
11,214 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

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
11,214 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

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
7.9
Good
7,993 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

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
11,030 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

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
3,123 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

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?

    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 19 daily outbound flights to Phoenix Sky Harbor Intl from 8 different airlines.

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

    Departing from Seattle to Phoenix Sky Harbor Intl Airport will take you 2h 55m. Airlines will cover a distance of 1107 mi. This flight may include one or multiple stops.

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

    Frontier, at $48, was found to be the cheapest airline from Seattle to Phoenix Sky Harbor Intl Airport.Alternate airlines to your destination round-trip include Spirit Airlines and Hawaiian Airlines. Frontier is priced at 77% lower than the current average price of a flight leaving 3 months from now.

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

    Consider Aeromexico (100%), KLM (94%) or Air France (93%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Phoenix Sky Harbor Intl Airport.

  • What are the cheapest flights from Seattle to Phoenix Sky Harbor Intl Airport?

    Looking for the cheapest flight from Seattle to Phoenix Sky Harbor Intl Airport? While on average our users pay $598, our data indicates the cheapest price to be $48. The most popular route (Seattle/Tacoma Intl - Phoenix Sky Harbor Intl), is priced around $77.

  • 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, January is the cheapest month in which you can book a flight from Seattle to Phoenix Sky Harbor Intl Airport (average of $48). Flying from Seattle to Phoenix Sky Harbor Intl Airport in July is currently the most expensive (average of $88). 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 Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Glendale
Payson
Chandler
Casa Grande
Globe
Goodyear
Peoria
Camp Verde
Buckeye
Surprise
Paradise Valley
Avondale
Guadalupe

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.

Top 8 airlines flying from Seattle to Sky Harbor Intl

Discover the top 8 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 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$166FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$65Average$177FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$83Average$209FlexibilityNo cancel feeOn-time85%
DeltaCheapest$97Average$230FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$138Average$274FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$143Average$286FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$168Average$315FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$236Average$304FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.