AirHint found the following cheapest return flights from Phoenix (PHX) to Seattle (SEA) in July 2026 (see full year).

Return flights

27 Jul - 03 Aug	Alaska Airlines	direct
15 Jul - 22 Jul	Delta	direct
10 Jul - 20 Jul	Delta	direct
09 Jul - 16 Jul	Delta	direct
10 Jul - 17 Jul	Delta	direct
13 Jul - 20 Jul	Delta	direct
04 Jul - 12 Jul	Delta	direct
04 Jul - 08 Jul	Sun Country Airlines
04 Jul - 05 Jul	Sun Country Airlines

Also check the deals for one-way flights from Phoenix to Seattle in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Phoenix to Seattle in July from $163

Return flights