Vuelos de United de Seattle (SEA) a Phoenix (PHX) desde $113

For information on any current Phoenix Sky Harbor Intl. Airport quarantine requirements and travel advice, go to our Covid-19 Travel Advisor. Look before you book your flight, so you don’t get caught up.

You should find out exactly which terminal United Airlines leaves from at Seattle - Tacoma Intl. Airport (SEA) when you receive your boarding pass. The same can be said for information regarding your arrival at Phoenix Sky Harbor Airport. If those details are missing, consult your airline.

Prepare to make a stopover when jetting from Sea-Tac Airport to Phoenix Sky Harbor Airport, as United Airlines doesn’t offer any nonstop flights between these two locations. While waiting for your connection, you might like to grab a gripping novel or your favorite magazine from the airport bookstore to help pass the time.

Have a power nap and arrive at your destination feeling refreshed and relaxed. You’ll have time to do so when traveling with United Airlines between Sea-Tac Airport and Phoenix Sky Harbor Intl. Airport, with the average flight lasting 4 hours and 45 minutes.

When traveling from SEA to PHX, you’ll discover roughly 5 United Airlines daily flights to pick from.

For more info about changing your flight to Phoenix Sky Harbor Airport, please visit our Customer Service Portal.

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.

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.

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.