Home >> Fares From A City >> Phoenix, AZ >> Phoenix, AZ (PHX) To Seattle, WA (SEA)
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    Fri, July 29, 2016
    Wed, November 16, 2016
Peter T.
Staff Airfare Analyst
Peter's Notes:
No min. stay. 20% Off Promo Code Fare; Late Summer/Fall travel. Fare can be bought one-way for half the lowest roundtrip price.
Book this fare on FlyFrontier.com using promo code SAVE20 for travel between Aug. 5 - Nov. 16, 2016. Blackout dates apply: Sep. 1-2, 5; Oct. 7 & 10, 2016. Promo code is valid for Mon-Sat travel, however, many routes are not flown on a daily basis.

This is the lowest fare found within the promo code travel period and may not be available throughout the entire travel period or on a daily basis. Some routes are seasonal and may not operate through the entire travel period. Lower fares may be available for Frontier Discount Den members.

Promo code takes 20% off the base fare only and does not apply to taxes/fees. This promo code expires at 11:59 p.m. ET on Jul. 29, 2016. However, the lowest available fare can change at any time.

Frontier charges a $30-$35 fee each way for carry-on bags larger than 18x14x8 inches and a $25-$30 fee each way for first checked bag no larger than 62 linear inches (length + width + depth) and no heavier than 50 pounds. These bag fees apply to online purchases before check-in. Higher fees apply at the airport.

During booking on FlyFrontier.com, you can purchase "The Works", which includes one checked bag, one carry-on bag, stretch seating, no change fees, and refundability, for much less than purchasing these items separately.
Seats are not available on all flights or all dates of travel. You may need to have flexible travel dates to find this fare. Fares for travel on holidays may be higher.
All mandatory taxes/fees are included in the price. Tax-inclusive fare may be a few dollars higher or lower depending on the airport you connect through, if any. Baggage fees, if applicable, and other optional fees are not included. Our Dealhounds found this airfare using flexible date search. This means we searched a range of dates to find you the best price.
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Reviews for Phoenix to Seattle
11 Traveler Reviews
"I am sooo Happy to have found Air Fare Watch Dog"
Flight from Phoenix to Seattle
Airline: Southwest
RT/OW: roundtrip
Date of Flight: September 2012
Seat Class: economy
Check-in Experience
In-flight Service
Seat Comfort
I signed up for Airfarewatchdog not expecting anything great, BUT I found a much needed flight to Seattle WA from Phoenix AZ for 192.00 round trip where that same flight is normally 330 -350 Thank you Thank you Thank you
Found by other travelers: Phoenix, AZ (PHX) to Seattle, WA (SEA)
Flight from Phoenix to Seattle (PHX - SEA)
Fri, Jun 6 - Thu, Jul 24
Flight from Phoenix to Seattle (PHX - SEA)
Mon, Aug 18 - Thu, Aug 21
Flight from Phoenix to Seattle (PHX - SEA)
Sun, Jul 6 - Fri, Jul 11
US Airways
Flight from Phoenix to Seattle (PHX - SEA)
Mon, Sep 8 - Fri, Sep 12
Flight from Phoenix to Seattle (PHX - SEA)
Wed, Jul 9 - Sun, Jul 13
Flight from Phoenix to Seattle (PHX - SEA)
Thu, Jun 12 - Sun, Jun 15
Flight from Phoenix to Seattle (PHX - SEA)
Thu, Aug 28 - Mon, Sep 1
Flight from Phoenix to Seattle (PHX - SEA)
Thu, Jul 3 - Sun, Jul 6
Flight from Phoenix to Seattle (PHX - SEA)
Thu, Jul 24 - Sun, Jul 27
US Airways
Flight from Phoenix to Seattle (PHX - SEA)
Fri, Aug 15 - Sun, Aug 17
US Airways
There are approximately 407 flights covering the route from Sky Harbor International Airport in Phoenix to Seattle/Tacoma International Airport in Seattle, provided by as many as 8 airlines.
The following airlines often offer cheap flights from Phoenix to Seattle
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