Cheap Flights from Phoenix to Seattle / Tacoma International

Compare Phoenix to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

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Flight deals from Phoenix to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best return flight from Phoenix to Seattle / Tacoma International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Phoenix to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phoenix to Seattle / Tacoma International flights are currently cheapest in December.

Direct flights from Phoenix to Seattle / Tacoma International

Phoenix to Seattle / Tacoma International: Alternative routes

Compare routes from Phoenix to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Phoenix to Seattle: Flight information

The things to know before you go.
Cheapest flight foundR 497
Cheapest month to flyJanuary
Average flight time3 hrs, 15 mins
Most popular airlineAmerican Airlines
Average flights per week1,164

Finding cheap flights from Phoenix to Seattle / Tacoma International: Frequently asked questions

The best price we found for a return flight from Phoenix to Seattle / Tacoma International is R 993. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 15 minutes is the average flight time from Phoenix to Seattle / Tacoma International.
American Airlines, Qatar Airways and Air Tahiti Nui fly direct from Phoenix to Seattle / Tacoma International.
As of November 2025, there are 582 flights per week flying from Phoenix to Seattle / Tacoma International.
The cheapest month to fly from Phoenix to Seattle / Tacoma International is usually December.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Phoenix to Seattle / Tacoma International Airport on Monday, 8 December 2025.
Yes – the average flight time is 3 hours and 15 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Seattle / Tacoma International is Frontier Airlines .

Travelling from Phoenix to Seattle-Tacoma International Airport (SEA): What you need to know

  • Kick off your journey at one of Phoenix's main airports, Phoenix Sky Harbour International Airport (PHX) or Phoenix-Mesa Gateway Airport (AZA). Check out your options for booking a flight from Phoenix to Seattle-Tacoma International Airport (SEA) leaving from either of these.

  • Seattle (where Seattle-Tacoma International Airport is located) and Phoenix share the UTC-7 timezone. With no time difference, coordinating plans between the cities is hassle-free.

  • Give yourself plenty of time to catch your flight from Phoenix to SEA. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Peak season means busier airports, so show up even earlier. Give yourself at least two hours before a domestic flight and four hours for an international journey to stick to your schedule.

Airports in Phoenix

Phoenix Scottsdale Municipal Airport (SCF)

Phoenix Sky Harbour International Airport (PHX)

  • You can book a direct Phoenix to Seattle-Tacoma International Airport (SEA) plane ticket out of Phoenix Sky Harbour International Airport (PHX). Figure out if flying from PHX works better for your plans.

  • A good selection of airlines offer direct flights from Phoenix to SEA out of PHX. Book your favourite window or aisle seat with any of these carriers and you'll get there before you know it:

  • Alaska Airlines has the largest share of bookings on the PHX to SEA route.

  • Flights between Phoenix Sky Harbour International Airport and Seattle-Tacoma International Airport are more likely to be on time with Delta Air Lines compared to other carriers.

  • PHX is about 8 kilometres from central Phoenix. It'll take you 10 minutes or so to get to the airport in a car from the city centre. Public transport takes roughly 35 minutes.

  • Catching the earliest flight? Think about staying at one of these hotels near Phoenix Sky Harbour International Airport the day before your Phoenix to SEA flight:

  • Most flights that depart Phoenix Sky Harbour International Airport reach their destination as planned. It maintains a strong on-time performance rate of 82.57%.

  • The address for PHX is 3400 Sky Harbour Boulevard.

Phoenix-Mesa Gateway Airport (AZA)

  • Making your way to AZA from the centre of Phoenix? The airport is located around 56 kilometres away, and getting there takes roughly 40 minutes by car.

  • Sleep a little longer, move a little slower, and still make your Phoenix to Seattle-Tacoma International Airport flight without having to rush. These accommodation options near Phoenix-Mesa Gateway Airport make departure day a breeze if you're setting off early:

  • Airports have an on-time performance rating that measures how often flights get to their destinations without delays. At AZA, that figure is 78.65%.

  • The street address of Phoenix-Mesa Gateway Airport is 6033 S. Sossaman Rd..

About Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • Central Seattle is around 18 kilometres from Seattle-Tacoma International Airport. Journey times by cab or car hire will vary depending on time of day and traffic conditions, so do a little research ahead of your trip.

  • It takes roughly 55 minutes if you're using public transport.

How to find the cheapest flights from Phoenix to Seattle-Tacoma International Airport (SEA)

  • R 501 is the best price for a one-way ticket from Phoenix to Seattle-Tacoma International Airport. A return flight starts at R 993. These prices may change depending on demand and availability.

  • Booking early is often the key to scoring a cheap flight from Phoenix to SEA. Fares tend to rise as seats fill up, so the closer your departure date, the more it could cost you.

  • Cheap Phoenix to Seattle-Tacoma International Airport tickets are easier to find when you have flexibility in your schedule. Try using the 'Whole month' tool to compare fares across every month and then fly out on the cheapest day.

  • Locking in a cheap plane ticket from Phoenix to SEA is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch when the price has dropped.

  • Tailor your flights using filters. Pick your preferred departure and arrival times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Phoenix to Seattle-Tacoma International Airport.

The best time to fly from Phoenix to Seattle-Tacoma International Airport (SEA)

  • It's time to figure out when to book your flight from Phoenix to Seattle-Tacoma International Airport (SEA). July is when most people travel to Seattle. If you like your getaways a little more chill, think about going in May.

  • Book a Phoenix to SEA plane ticket departing in August if you want to visit the city during its warmest month. You can expect temperatures in Seattle to range from 12ºC (54ºF) to 28ºC (82ºF).

  • Look for cheap tickets from Phoenix to Seattle-Tacoma International Airport in February if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -1ºC (30ºF) and 11ºC (52ºF).

More about Seattle

  • When it comes to looking for somewhere to rest your head, you'll find the top stays in Seattle right here. Check out these hotels after you've booked your flight from Phoenix to Seattle-Tacoma International Airport:

  • Your visit to Seattle wouldn't be complete without a bit of sightseeing. Major attractions that should be on your list include Pike Place Market, Space Needle and Seattle Skyline.

Explore more of the United States

  • Portland is just one of the many places in the United States waiting to be explored once you've seen Seattle. Around 209 kilometres away to the south, popular attractions include Portland Japanese Garden, Voodoo Doughnut and Great Northwest.

  • Vancouver is another favourite destination in the United States and is around 209 kilometres south of Seattle. No journey is complete without visiting Vancouver Waterfront, Reconstructed HBC Fort Vancouver and Fort Vancouver National Historic Site Garden.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.