Cheap Flights From Sky Harbor Intl. (PHX) To Seattle - Tacoma Intl. (SEA)

If you'd prefer to fly direct from Sky Harbor Intl. Airport (PHX) to Seattle - Tacoma Intl. Airport (SEA), you're not short on choice. We've listed some of the most in-demand airlines that advertise nonstop services on this route:

• Alaska Airlines - (AS) with 230 flights every month
• Southwest Airlines - (WN) with 126 flights every month
• Delta - (DL) with 121 flights every month
• American Airlines - (AA) with 91 flights every month

Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca 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 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.