−62%Verified fare
PHX → San Francisco
United States · Frontier · Nonstop
$38 round trip
Usually ~$100 · Feb 2027
Feb 13 → Feb 20 · hotels from ~$178/nightSee it on Google Flights →
Alaska, Delta, Southwest, Frontier and American fly nonstop from Phoenix to Seattle. The flight takes about 3h 15m.
| From | Phoenix Sky Harbor (PHX) |
|---|---|
| To | Seattle-Tacoma (SEA) and Paine Field, Everett (PAE) |
| Nonstop airlines | Seattle-Tacoma: Alaska, Delta, Southwest, Frontier, American Paine Field (Everett): Alaska |
| Flight time | About 3h 15m (1,107 miles) |
| Cheapest month | January (median about $117 round trip) |
| Most expensive | July and June |
| Typical round trip | $193 to $337 |
| Best time to book | About 9 weeks ahead |
| Google Flights typical price | About $216 round trip, for the dates we checked recently |
January is usually the cheapest month to fly from Phoenix to Seattle, with a median round trip around $117. July and June cost the most, around $309 and $284. Most round trips have cost $193 to $337.
Booking about 9 weeks before departure has saved the most on this route, about 42% compared with booking in the last two weeks.
Those are typical prices. Our daily scan looks for fares well below them: when one shows up from PHX, it appears at the top of this page and goes out by email.
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Seattle-Tacoma: Alaska, Delta, Southwest, Frontier, American; Paine Field (Everett): Alaska. Schedules change, so check before booking.
About 3h 15m (1,107 miles).
January is usually the cheapest month to fly from Phoenix to Seattle, with a median round trip around $117. July and June cost the most, around $309 and $284. Most round trips have cost $193 to $337.
Booking about 9 weeks before departure has saved the most on this route, about 42% compared with booking in the last two weeks.
Be flexible on dates, compare the nearby airports listed above, and watch for fare drops. Our free newsletter checks fares from PHX every morning and only sends fares at least 20% below the typical price for that route and dates.
Prices are round-trip medians over the past 12 months from KAYAK route data, checked October 2026. Nonstop airlines from Phoenix Sky Harbor and airline schedules as of October 2026. Fares and schedules change, so confirm before you book.