$100 Find Cheap Flights from Phoenix Sky Harbor Airport to Seattle - Compare and Save

These are the earliest and latest flight times available from Phoenix Sky Harbor Intl Airport to Seattle:

• Earliest: departs at 12:20 am and lands at 3:35 am
• Latest: departs at 11:15 pm and lands at 2:30 am.

The flight takes about 3h 15m.

Three cabin classes are available on flights from Phoenix Sky Harbor Intl Airport to Seattle:

• Economy Class
• Business Class
• First Class

A nonstop flight from Phoenix Sky Harbor Intl Airport to Seattle takes 3h 15m, covering 1,107 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Phoenix Sky Harbor Intl Airport to Seattle range from $182 to $320, with an average of $254 over the past 12 months. Anything below $182 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 38% above the $254 route average. Book 9 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $116 round-trip via Oakland (OAK), compared to $255 for nonstop.

Delta is slightly above the route average for timely arrivals, while Alaska Airlines has a lower on-time arrival rate. On-time arrival rates on Phoenix Sky Harbor Intl Airport to Seattle flights are:

• Delta: 93% on time
• Alaska Airlines: 92% on time
• American Airlines: 91% on time

Overall, flights on this route are punctual 90% of the time on average.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Alaska Airlines and Southwest. Other aircraft seen on the route include Embraer 175 variants.

Morning is the busiest departure period on Phoenix Sky Harbor Intl Airport to Seattle flights, with 45% of flights leaving in that window. Afternoon departures account for 34%, evening flights for 16%, and night flights for 5%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $187 to $979. That means the highest observed fare was about 5x higher than the lowest one.

Four airlines offer in-flight Wi-Fi on Phoenix Sky Harbor Intl Airport to Seattle flights:

• Alaska Airlines
• Delta
• American Airlines
• JetBlue

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Phoenix Sky Harbor Intl Airport to Seattle are currently lower than usual. Average one-way flight prices are about $123, which is 25% below the typical average for this route.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:

• Fox
• Europcar
• Thrifty
• Budget
• Dollar

Flights from Phoenix Sky Harbor Intl Airport to Seattle usually depart from Phoenix Sky Harbor Intl (PHX) and arrive at Seattle/Tacoma Intl (SEA).

Morning flights have the fewest delays on this route, while night departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Phoenix Sky Harbor Intl Airport to Seattle route, 10% of flights were delayed in the past 3 months, with delays averaging 2h 34m.

One-stop flights from Phoenix Sky Harbor Intl Airport to Seattle most commonly connect through:

• Las Vegas Harry Reid Intl (LAS) - 42% of one-stop connections
• Denver Intl (DEN) - 38% of one-stop connections
• Los Angeles (LAX) - 9% of one-stop connections
• Salt Lake City (SLC) - 6% of one-stop connections

Yes. Flexible dates can save you up to 9% on flights from Phoenix Sky Harbor Intl Airport to Seattle. Friday is the cheapest departure day at $247 round-trip on average, while Sunday is the most expensive at $271, a difference of $24.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

4 airlines operate flights between Phoenix Sky Harbor Intl Airport and Seattle. The airlines offering nonstop flights on this route include:

• Alaska Airlines
• Delta
• American Airlines
• Southwest

Flying via San Francisco (SFO) gives the shortest average 1-stop total travel time at 6h 22m, compared with 6h 34m via Oakland (OAK) and 10h 46m via Los Angeles (LAX).

Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

Among airlines operating Phoenix Sky Harbor Intl Airport to Seattle flights:

• Alaska Airlines: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a cabin bag and a checked bag in Economy Class
• Delta: a cabin bag and a checked bag in Economy Class
• American Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Seattle-Tacoma International Airport (SEA) is a gateway to the Pacific Northwest. Nearby towns beyond Seattle include Prosser, about a three-hour drive from Seattle via I-90 and I-82.

American Airlines has a hub at Phoenix Sky Harbor International Airport (PHX), where flights from Seattle/Tacoma arrive. Southwest Airlines also has an operating base there. Travelers can expect accelerated service, world-class amenities and numerous direct connections to other destinations.

Transportation options from SEA to downtown Seattle include shuttles, taxis and trains. Light rail connects SEA with Westlake Station in about 40 minutes and is a lower-cost option. Taxis reach downtown Seattle in about 25 minutes.

PHX has a few Bank of America ATMs, located both pre-security and post-security in Terminals 3 and 4. In Terminal 3, they are near Baggage Claim on Level I and near Gate F5. In Terminal 4, they are on Levels 1, 2 and 3 and near gates A1, B1, C1 and D1.

At SEA, lost and found services are located on the baggage claim level. Claims must be filed online and should include contact information, the location and an item description.

Yes, PHX offers accessibility features. Wheelchairs are available at the airport to help physically disabled travelers move around more easily. Travelers bringing their own wheelchair can coordinate that with their airline. Reservations can also be made for travel with an oxygen tank. Hearing devices are available at the airport. Accessible restrooms with professional caregivers are also available and directions can be requested at the information desk.

Several airline clubs and lounges are available at Phoenix Sky Harbor International Airport (PHX) for travelers waiting for a flight to Seattle. In Terminal 4, options include the American Airlines Admirals Club near Gates A19 and A21, The Centurion Lounge across from Gate B21 and the Escape Lounge across from Gate B22.