$139 Find Cheap Flights from Seattle to San Antonio - Compare and Save

SEA Airport has over 12,000 parking spaces for anyone looking to leave their car at the airport. These parking spaces are easily accessible from International Blvd and have bridges and pathways leading to the airport terminal. There is an option to reserve parking days before your flight, and if you’re a frequent flyer, you can qualify for discounts and other perks.

While flying is not the most sustainable way to travel, it is very difficult to avoid. Therefore, the onus is on you to make your flight more sustainable and do your best for the environment. You can start by booking a direct flight instead of connecting flights since connecting flights are often longer and result in more carbon emissions. Another way to make your trip more sustainable is by flying economy. It has a higher capacity and therefore carries more people reducing the number of overall flights.

San Antonio International Airport offers free wheelchair services to anyone that may require one. To get these services, you will need to inform your airline or travel agent at least 48h before your flight is set to depart. That way, they will mark your record with a note informing the airport officials that you require special assistance. Upon seeing the information, the airport officials will make the necessary arrangements to ensure that you get a wheelchair as soon as your plane lands.

Sea-Tac Airport is about 13 miles away from downtown Seattle. While there is a light rail that goes directly from Downtown to the airport, road transport provides the quickest way. Assuming normal traffic and weather conditions, it should take about 15min to get to the airport using the I-5S. A cab or driving to the airport would be most appropriate.

Among airlines operating Seattle to San Antonio flights:

• Alaska Airlines: offers extra legroom; offers free seat selection

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

Only Alaska Airlines operates flights between Seattle and San Antonio.

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

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 travelers should check the fare details before booking.

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

• Economy Class
• Business Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $254 round-trip via Minneapolis St Paul (MSP), compared to $392 for nonstop.

The Boeing 737 MAX 9 family is used most often on this route, operated mainly by JetBlue and Alaska Airlines. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

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

• Salt Lake City (SLC) - 27% of one-stop connections
• Denver Intl (DEN) - 26% of one-stop connections
• Dallas/Fort Worth (DFW) - 24% of one-stop connections
• Phoenix Sky Harbor Intl (PHX) - 8% of one-stop connections

Salt Lake City (SLC) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 39% on the Seattle to San Antonio route. Tuesday is the cheapest departure day at $295 round-trip on average, while Sunday is the most expensive at $481, a difference of $186. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

Some of the most popular sights in San Antonio are San Antonio River Walk, SeaWorld San Antonio and Henry B. González Convention Center. These are among the most viewed places in San Antonio on KAYAK.

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

• Earliest: departs at 10:00 am and lands at 2:14 pm
• Latest: departs at 10:58 am and lands at 3:12 pm.

The flight takes about 4h 14m.

Last-minute fares on this route - booked within 2 weeks of departure - run 35% above the route average of $352. Book 24 weeks before departure for the lowest fares.

A nonstop flight from Seattle to San Antonio takes 4h 14m, 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.

One-way fares from Seattle to San Antonio are currently lower than usual. Average one-way flight prices are about $140, which is 34% below the typical average for this route.

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 6h 22m, compared with 6h 34m via Dallas Love Field (DAL) and 6h 39m via Phoenix Sky Harbor Intl (PHX).

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

San Antonio Airport (SAT) hosts 5 major car rental companies, with daily rates starting from around $22 for economy cars. Top options include:
· Europcar
· Fox
· Dollar
· Hertz
· Alamo

Round-trip flights from Seattle to San Antonio range from $258 to $475, with an average of $352 over the past 12 months. Anything below $258 counts as a good deal.

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