£59 Cheap Flights from Phoenix (PHX) to Seattle (SEA)

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

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

Prices were available within the past 7 days and start at £59 for one-way flights and £121 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Delta
Alaska Airlines
United

Find the cheapest month to fly from Phoenix (PHX) to Seattle (SEA)

January is typically the cheapest month to fly

From £36 - £173 per traveller.

Graph displaying average flight prices per month

Flight from Phoenix to Seattle route information
Origin airport
Sky Harbor Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
£120
Distance
1770 km
Average flight time
3 hours 1 min

Compare flights from Phoenix to Seattle easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Phoenix to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Sky Harbor Intl. to Seattle - Tacoma Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Sky Harbor Intl. (PHX) to Seattle - Tacoma Intl. (SEA)

The easiest way to view the best deals on flights from Phoenix to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Sky Harbor Intl. to Seattle - Tacoma Intl. start at just £121 and range up to £267.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Phoenix and Seattle
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Phoenix to Seattle flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Sky Harbor Intl. to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Phoenix Sky Harbour Airport to Sea-Tac Airport?
Pack your bags, because round-trip journeys from Phoenix Sky Harbour Intl. Airport to Sea-Tac Airport start from £121. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book now to get the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Phoenix Sky Harbour Airport to Sea-Tac Airport?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from PHX to SEA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sky Harbour Intl. Airport (PHX) to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Phoenix Sky Harbour Intl. Airport to Seattle - Tacoma Intl. Airport (SEA)?
There are lots of ways to make the 3 hours and 15 minutes between Sky Harbour Intl. Airport (PHX) and SEA go by quicker. Be productive and sort through your camera roll or clear out all those backed-up emails. A good snooze also helps pass the time!
How far is the flight from Phoenix Sky Harbour Intl. Airport to Seattle - Tacoma Intl. Airport (SEA)?
Expect to be cruising at altitude for a while, as the flight distance from Phoenix to SeaTac is 1,800 kilometres. Create a playlist of your favourite tunes before you leave home to stay entertained during your journey.
Which airlines fly direct from PHX to Sea-Tac Airport?
Have a look at the deals on offer with these popular carriers and lock in your fare from Sky Harbour Intl. Airport (PHX) to SEA today:

  • Alaska Airlines - (AS) with 217 monthly flights
  • Delta Air Lines - (DL) with 121 monthly flights
  • American Airlines - (AA) with 91 monthly flights
  • Southwest Airlines - (WN) with 86 monthly flights

Are PHX to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes nab a bargain, with some super cheap airfares from Phoenix Sky Harbour Intl. Airport to Seattle - Tacoma Intl. Airport (SEA) arising a few weeks prior to the departure date. If you'd rather plan ahead of time, Expedia compares and updates all the best flight deals frequently — as early as 12 months in advance in some cases. It does depend on the carrier though, as not every airline releases prices so far in advance.

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