Seattle (SEA) → Phoenix (PHX)

Seattle–Tacoma International Airport to Phoenix Sky Harbor International Airport · 962 nm (1,782 km) · about 2.5 h nonstop

Cheapest economy fares, checked daily · 43 days of history

Written and maintained by Jake McEwen
Great-circle route from Seattle (SEA) to Phoenix (PHX)
SEAPHX

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Economy

last checked 9h ago
$71one-way
48% below typical

Frontier Airlines · 1 stop · 12h 15m · travel Nov 18 · sold via Kiwi.com

Book on Aviasales· $71 ↗Compare on Google Flights ↗Compare on Skyscanner ↗
Lowest (90d)
$58
Typical (median)
$127
Highest (90d)
$178
Checks
52
Cheapest fare seen at each daily check over the last 90 days. Green dots are checks that qualified as a deal.

When it's cheapest to travel

Travel dates of the cheapest fare found at each of our 52 daily checks — where the low fares were, not every date.

Lowest fare by travel month
Sep 2026$11817×
Oct 2026$11218×
Nov 2026$5817×
Typical fare by day of travel
Moncheapest$8320×
Wed$13621×
Tue$1368×
Sat$1622×
CheckedFareAirlineStopsTravelSold via
2026-10-28$71Frontier Airlines1 stopNov 18Kiwi.comBook ↗
2026-10-27$71Frontier Airlines1 stopNov 18Kiwi.comBook ↗
2026-10-26$71Frontier Airlines1 stopNov 18Kiwi.comBook ↗
2026-10-25$91Frontier Airlines1 stopNov 30Kiwi.comBook ↗
2026-10-24$91Frontier Airlines1 stopNov 30Kiwi.comBook ↗
2026-10-23$91Frontier Airlines1 stopNov 30Kiwi.comBook ↗
2026-10-21$83Frontier Airlines1 stopNov 16City.TravelBook ↗
2026-10-21$83Frontier Airlines1 stopNov 16City.TravelBook ↗
2026-10-20$83Frontier Airlines1 stopNov 16City.TravelBook ↗
2026-10-19$58Frontier Airlines1 stopNov 16—Book ↗
2026-10-19$58Frontier Airlines1 stopNov 16—Book ↗
2026-10-18$58Frontier Airlines1 stopNov 16—Book ↗

Airlines selling the cheapest fares

Which carrier had the lowest fare on each of our checks over the last 90 days.

  • Frontier Airlines ×48
  • Alaska Airlines ×2
  • Southwest Airlines ×2

About this route

Seattle (SEA) to Phoenix (PHX) is one of the busiest air routes in its market (US domestic). It links Seattle–Tacoma International Airport in United States with Phoenix Sky Harbor International Airport in United States. The great-circle distance is about 962 nautical miles (1,107 statute miles), so expect roughly 2.5 hours in the air nonstop.

Every night we ask our fare provider for the cheapest one-way economy fare other travellers recently found on this route and record it, with the airline and the seller it was found with. A fare is flagged as a deal when it falls at least 30% below the route's 90-day typical price. Prices are a research starting point, not live availability — the booking links open the itinerary so you can confirm what's on sale right now.

Fares are approximate, from public sources, and can be stale — always verify before booking.