$109 Find Cheap Flights from San Antonio to Seattle - Compare and Save

These are the earliest and latest flight times available from San Antonio to Seattle:

• Earliest: departs at 5:00 pm and lands at 9:35 pm
• Latest: departs at 5:58 pm and lands at 10:33 pm.

The flight takes about 4h 35m.

Three cabin classes are available on flights from San Antonio to Seattle:

• Economy Class
• Business Class
• First Class

A nonstop flight from San Antonio to Seattle takes 4h 35m, covering 1,772 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 San Antonio to Seattle range from $278 to $475, with an average of $375 over the past 12 months. Anything below $278 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 17% above the $375 route average. Book 19 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $168 round-trip via Chicago O'Hare Intl (ORD), compared to $447 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$40 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 Boeing 737 MAX 8 variants.

Evening is the busiest departure period on San Antonio to Seattle flights, with 100% of flights leaving in that window. Morning departures account for 0%, afternoon flights for 0%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $274 to $2,603. That means the highest observed fare was about 10x higher than the lowest one.

Alaska Airlines is the only airline on the San Antonio to Seattle route offering in-flight Wi-Fi. Pricing depends on fare class.

One-way fares from San Antonio to Seattle are currently lower than usual. Average one-way flight prices are about $132, which is 37% below the typical average for this route.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging $61 for economy cars. Top options include:

• Fox
• Europcar
• Thrifty
• Budget
• Hertz

Flights from San Antonio to Seattle usually depart from San Antonio (SAT) and arrive at Seattle/Tacoma Intl (SEA).

One-stop flights from San Antonio to Seattle most commonly connect through:

• Denver Intl (DEN) - 23% of one-stop connections
• Dallas/Fort Worth (DFW) - 22% of one-stop connections
• Salt Lake City (SLC) - 19% of one-stop connections
• Phoenix Sky Harbor Intl (PHX) - 10% of one-stop connections

Yes. Flexible dates can save you up to 17% on flights from San Antonio to Seattle. Tuesday is the cheapest departure day at $348 round-trip on average, while Friday is the most expensive at $418, a difference of $70.

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

Only Alaska Airlines operates flights between San Antonio and Seattle.

Flying via Dallas Love Field (DAL) gives the shortest average 1-stop total travel time at 6h 08m, compared with 6h 16m via Salt Lake City (SLC) and 6h 40m via Dallas/Fort Worth (DFW).

Seattle is 2 hours behind San Antonio (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

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 San Antonio to Seattle flights:

• Alaska Airlines: offers extra legroom; 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

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

Travelers heading from downtown San Antonio to San Antonio International Airport (SAT) for flights to Seattle can take a taxi or the Line 5 bus. Taxis are the fastest option, while the Line 5 bus takes about 30 minutes.

Yes, both SAT and SEA have pet-friendly policies. SAT has animal relief areas before and after security. At SEA, the animal relief area is in the Central Terminal just before the Concourse B exit.