An Alaska Airlines plane taking off with a snow-capped mountain in the background.

CA $168 Cheap Flights from Phoenix (PHX) to Seattle (SEA)

View CA $168 flight on Tue, Nov 3, 2026Opens in a new window

Popular airlines from Sky Harbor International Airport (PHX) to Seattle-Tacoma International Airport (SEA)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Phoenix (PHX) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $168 for one-way flights and CA $335 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Oct 10 - Tue, Oct 13
PHX
Phoenix
SEA
Seattle
CA $335 Roundtrip, found 4 days ago
CA $335
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Oct 10 from Phoenix to Seattle, returning Tue, Oct 13, priced at CA $335 found 4 days ago
Delta
Sat, Aug 22 - Wed, Aug 26
PHX
Phoenix
SEA
Seattle
CA $336 Roundtrip, found 3 days ago
CA $336
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Aug 22 from Phoenix to Seattle, returning Wed, Aug 26, priced at CA $336 found 3 days ago
Alaska Airlines
Tue, Sep 22 - Wed, Sep 23
PHX
Phoenix
SEA
Seattle
CA $338 Roundtrip, found 1 day ago
CA $338
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 22 from Phoenix to Seattle, returning Wed, Sep 23, priced at CA $338 found 1 day ago
Alaska Airlines
Sat, Aug 22 - Wed, Aug 26
PHX
Phoenix
SEA
Seattle
CA $339 Roundtrip, found 3 days ago
CA $339
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Aug 22 from Phoenix to Seattle, returning Wed, Aug 26, priced at CA $339 found 3 days ago
Alaska Airlines
Thu, Oct 29 - Tue, Nov 3
PHX
Phoenix
SEA
Seattle
CA $349 Roundtrip, found 5 days ago
CA $349
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Oct 29 from Phoenix to Seattle, returning Tue, Nov 3, priced at CA $349 found 5 days ago
Delta
Thu, Aug 20 - Wed, Aug 26
PHX
Phoenix
SEA
Seattle
CA $353 Roundtrip, found 4 days ago
CA $353
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Aug 20 from Phoenix to Seattle, returning Wed, Aug 26, priced at CA $353 found 4 days ago
Alaska Airlines
Wed, Aug 26 - Sun, Aug 30
PHX
Phoenix
SEA
Seattle
CA $353 Roundtrip, found 12 hours ago
CA $353
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Wed, Aug 26 from Phoenix to Seattle, returning Sun, Aug 30, priced at CA $353 found 12 hours ago
Alaska Airlines
Thu, Oct 1 - Sat, Oct 17
PHX
Phoenix
SEA
Seattle
CA $354 Roundtrip, found 1 day ago
CA $354
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Oct 1 from Phoenix to Seattle, returning Sat, Oct 17, priced at CA $354 found 1 day ago
American Airlines
Sat, Aug 22 - Wed, Aug 26
PHX
Phoenix
SEA
Seattle
CA $386 Roundtrip, found 3 days ago
CA $386
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Aug 22 from Phoenix to Seattle, returning Wed, Aug 26, priced at CA $386 found 3 days ago
United
Wed, Aug 26 - Sun, Aug 30
PHX
Phoenix
SEA
Seattle
CA $559 Roundtrip, found 12 hours ago
CA $559
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Aug 26 from Phoenix to Seattle, returning Sun, Aug 30, priced at CA $559 found 12 hours ago

Frequently asked questions

How much does a flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
One-way flights typically cost between £95 and £618 and return flights often range between £95 and £618. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
January is typically the cheapest month to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with average return fares of approximately £154. This is about 14% lower than the average price throughout the year. January often sees lower prices because it falls after the busy holiday travel season, when demand tends to decrease. Other cheap months to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) include February and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter PHX to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Phoenix, AZ (PHX-Sky Harbor Intl.) (PHX) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA) will differ from traveller to traveller. If you like to fly early, AS offers early morning flights. If price is the most important factor, F9 typically offers the lowest fares. WN offers the most daily flights from Phoenix, AZ (PHX-Sky Harbor Intl.) (PHX) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
When looking for the best time to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), it's a balance between price and popularity. Based on booking data from the past year, you'll find the cheapest flights in January and September, with average return prices around £154. However, the most popular months for travel are October and July, which means more flight options and potentially higher demand. Since there isn't a month that is both cheapest and most popular, you can choose based on your priority: save money in January or September, or enjoy more flight choices in October or July.*Prices based on flights available on Expedia in the last year.
How many flights per day from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 16 nonstop flights per day from Phoenix Sky Harbor International (PHX) to Seattle-Tacoma International (SEA). For even more choice, look at flights that include layovers, as there are around 130 connecting flights per day. Some common connection points include San Diego International (SAN), Harry Reid International (LAS), and Los Angeles International (LAX).
What is the earliest flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs at approximately 12:10 AM local time, operated by American Airlines. This is a seasonal service active in December. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll find the most flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) on a Friday, with around 125 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, Alaska Airlines, and United Airlines. Friday sees notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the early morning, from 6am to 9am. About 28% of passengers prefer this time window. Many major carriers, including Alaska Airlines, Delta Air Lines and United Airlines, offer flights during this window. These times work well because you can get an early start to your travel day and arrive in Seattle with plenty of time to spare.
How long does it take to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A nonstop flight from PHX to SEA typically takes around 3 hours 20 minutes, covering approximately 1,107 miles. Connecting flights on this route usually add 5 hours 30 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for PHX to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Sky Harbor Intl. (PHX)?
If you're planning to travel to Seattle from Sky Harbor Intl. (PHX), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like Los Angeles Intl. (LAX), San Diego Intl. (SAN), John Wayne (SNA) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

0
Origin airport
Sky Harbor Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
CA $313
Distance
1770 km

Book with confidence

Phoenix to Seattle Flights

The easy way to book your flights from Phoenix to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Phoenix whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Phoenix to Seattle today, tomorrow, or this week.  

 

Save dollars with cheap flights from Sky Harbor Intl., PHX to Seattle - Tacoma Intl., SEA 

Sort your search results by price to find great deals on your flight from Phoenix to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Phoenix currently is just CA $335 rising to CA $559.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seattle from Phoenix 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.

Phoenix to Seattle Flights

Explore a world of travel with Expedia

*Available to Expedia members.