Cheap flights from Phoenix to Seattle

One-way fares from $95 · PHX → SEA · prices found by travellers in the last 48 hours

Compare all dates Seattle → Phoenix
Cheapest fare
$95

Frontier Airlines · Sat, Dec 5

Cheapest month
December

from $95

Direct flights
Not recently

Usually 1+ stop

Quickest trip
4h 22m

1,790 km

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Cheapest month to fly from Phoenix to Seattle

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $131
  2. December 2026 Cheapest $95

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart16:30 Sat, Dec 5PHX → SEA 4h 22m · 1 stop
$95one way, per person
View deal
See every date in December 2026 →

Plan the rest of your trip to Seattle

Where to stay, what to do and getting around, from our travel partners.

Where to stay

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Things to do

Things to do in SeattleTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in SeattlePre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in SeattleCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Phoenix to Seattle

Phoenix (PHX) and Seattle (SEA) are about 1,790 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 4h 22m. Over the next few months, one-way fares start from $95, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Phoenix to Seattle?

The cheapest one-way fare we've seen recently is $95 with Frontier Airlines, departing Saturday, December 5, 2026. Over the coming months, the lowest fare in each month ranges from $95 to $131.

What is the cheapest month to fly from Phoenix to Seattle?

December 2026 currently has the lowest fares, from $95 one way.

Are there direct flights from Phoenix to Seattle?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Phoenix to Seattle?

The quickest journey we've seen takes about 4h 22m. Phoenix and Seattle are around 1,790 km apart.

Which airlines fly from Phoenix to Seattle?

Recent fares on this route were with Frontier Airlines.

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