Cheapest return flights from Phoenix to Seattle in April from $192

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

Return flights

25 Apr - 25 Apr Alaska Airlines direct
26 Apr - 01 May Alaska Airlines direct
26 Apr - 26 Apr Alaska Airlines direct
19 Apr - 26 Apr Southwest Airlines
19 Apr - 26 Apr Delta direct
05 Apr - 26 Apr Sun Country Airlines
05 Apr - 24 Apr Sun Country Airlines

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

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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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