$109 Cheap United flights from Phoenix to Seattle (PHX to SEA)

Find The Best Day To Fly from Phoenix to Seattle

Flexible dates

Amazing United PHX to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $217 round trip and $109 one way. Prices and availability subject to change. Additional terms may apply.

Wed, May 7 - Sat, May 17
PHX
Phoenix
SEA
Seattle
$217 Roundtrip, found 11 hours ago
$217
Roundtrip
found 11 hours ago
Select United flight, departing Wed, May 7 from Phoenix to Seattle, returning Sat, May 17, priced at $217 found 11 hours ago

SEA From PHX Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Luke's Jedi Meditation Chamber

Luke's Jedi Meditation Chamber

2 out of 5
per person
May 12 - May 16
found 1 day ago
Roundtrip flight included
Phoenix (PHX) to Seattle (SEA)
Walk to the waterfront The Cozy Cottage

Walk to the waterfront The Cozy Cottage

3 out of 5
per person
May 12 - May 16
found 1 day ago
Roundtrip flight included
Phoenix (PHX) to Seattle (SEA)
Boho Bliss Bungalow

Boho Bliss Bungalow

3 out of 5
per person
May 12 - May 16
found 1 day ago
Roundtrip flight included
Phoenix (PHX) to Seattle (SEA)
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Frequently asked questions

Can I catch a flight from Phoenix Sky Harbor Airport to Seattle - Tacoma Intl. Airport (SEA) right now?
It’s always wise to find out about any travel advice reports and quarantine requirements in effect in your destination. Ensure you go to our Covid-19 Travel Advisor for up-to-date info on booking a flight to Sea-Tac Airport.
What terminal is United Airlines at Phoenix Sky Harbor Airport?
You should find out exactly which terminal United Airlines leaves from at PHX once you’ve seen your boarding pass. The same applies to information regarding your arrival at Seattle - Tacoma Intl. Airport (SEA). If you can’t locate those details, ask your airline.
Are there United Airlines non-stop flights from PHX to SEA?
If you want to travel with United Airlines from Phoenix Sky Harbor Intl. Airport to Sea-Tac Airport, you’ll have to make at least one stopover. While waiting for your next flight, take the opportunity to enjoy a bite to eat or stretch your legs.
How long is a United Airlines flight from PHX to SEA?
Squeeze in some in-flight shut-eye and start your vacation well-rested. You’ll have sufficient time to do so when traveling with United Airlines between Phoenix Sky Harbor Airport and Sea-Tac Airport, with the flight taking roughly 4 hours and 58 minutes.
How many direct and indirect flights does United Airlines fly from PHX to SEA?
You’ll have a great deal of options if you want to fly with United Airlines between PHX and SEA. Currently, it is offering about 5 flights every day.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to SEA, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Phoenix PHX to Seattle SEA 

To find the best deals on flights to Phoenix from Seattle with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Phoenix PHX to Seattle SEA with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $217 to $217, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Phoenix PHX to Seattle SEA 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Phoenix to Seattle costs from $109. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Seattle SEA from  Phoenix PHX with United 

To find a cheap United flight from Phoenix PHX to Seattle SEA, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Phoenix PHX to Seattle SEA 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as May, or if you book a flight with a stopover. 

 

Find nonstop flights from Phoenix PHX to Seattle SEA with United 

If you’re keen to be on Seattle soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Phoenix PHX to Seattle SEA 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Seattle SEA from  Phoenix PHX with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

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Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.