Searching Delta, I found seats departing PHX on Friday, May 10 and returning from SEA on Sunday, May 12, 2019. Other Friday to Sunday deals are available in mid-May while June has more Saturday to Monday or Thursday to Saturday offerings.
Want to travel during the week and not just for a weekend? Good news! This fare is available on daily departures starting in early May through June 19, 2019.
This Basic Economy fare includes a carry-on bag plus one personal item. A checked bag costs $30 each way.
Seats will be assigned at random upon check-in for this price.
Nonstop flights on Alaska Airlines on this city pairing are available for about $10 more on select dates. Occasionally you may find an exact price match but generally not for weekend travel.
If you don't like the restrictions of Basic Economy, fares can be upgraded to Main Cabin for $20 each way or $40 roundtrip, totaling $177. This will include the ability to select from available standard economy seats and allow for ticket changes for a fee.
See our fare details for booking info.
For more fantastic fares departing Sky Harbor have a look at our Phoenix (PHX) flight deals page to see where else is on sale.
Looking for a hotel in Seattle? Hotelwatchdog will get you started with this list of available accommodation for the weekend dates mentioned.