San Antonio (SAT) to Seattle (SEA) at a glance

Traveling from San Antonio (SAT) to Seattle (SEA) offers a variety of options with numerous airlines, making it easy to find the perfect flight for your journey. Whether you prefer full-service airlines or budget-friendly carriers, you can compare choices to suit your budget and schedule. With weekly flights available, it’s simple to plan your visit to Seattle and explore its renowned attractions and neighborhoods. Discover the essential information for flights from San Antonio International Airport to Seattle-Tacoma International Airport.

• Fastest flight duration: around 4h 30m non-stop
• Route distance: roughly 1,800 miles (2,900 km)
• Flights per week: around 50+ flights with multiple daily departures on average
• Typical fares (one-way): economy tickets often range from $95–$345, depending on seasonality and how far ahead you book

Flights from San Antonio International Airport (SAT) to Seattle - Tacoma International Airport (SEA)

According to recent traveler bookings, the top airlines flying from San Antonio to Seattle are favored for their one-stop and non-stop flights. Common layover points include Dallas-Fort Worth International Airport (DFW) with about a 1-hour layover, Salt Lake City International Airport (SLC) also around 1 hour, and Denver International Airport (DEN) at roughly 1 hour. These choices provide the flexibility to balance price, travel time, and cabin class, allowing you to craft the best travel itinerary.

• Delta: This full-service airline provides one-stop options, with one-way ticket prices usually falling between $95 and $280. Delta represents about 23% of flights on this route, featuring an in-flight duration of 5 hours and 30 minutes, leading to a total travel time of approximately 7 hours, including layovers.
• American Airlines: Another full-service option, American Airlines also offers one-stop flights, with one-way fares generally ranging from $95 to $345. This carrier accounts for roughly 22% of departures on this route, boasting an in-flight time of 5 hours and 30 minutes, resulting in a total journey time of about 7 hours, including layover periods.
• Alaska Airlines: Offering both non-stop and one-stop flights, Alaska Airlines features one-way fares that typically range from $120 to $420. This airline covers approximately 20% of the departures on this route, with non-stop flights usually taking around 4 hours and 30 minutes.
• Southwest Airlines: As a low-cost carrier, Southwest Airlines provides one-stop and multi-stop services, with one-way fares generally between $95 and $315. This airline comprises about 18% of departures on this route, with one-stop flights averaging 5 hours and 30 minutes in the air, leading to a total travel time of roughly 7 hours.
• United: United Airlines, a full-service carrier, offers both non-stop and one-stop options, with one-way fares typically ranging from $110 to $315. They account for approximately 13% of the departures on this route, featuring a typical in-flight time of 5 hours and 30 minutes, and a total journey time of around 7 hours.

Travelers flying from San Antonio to Seattle have the option to upgrade their flight experience. Leading airlines include Alaska Airlines and American Airlines, both offering first class and business class service, while Delta provides first class and premium economy class options for added comfort during your journey.

Best time to fly from San Antonio (SAT) to Seattle (SEA)

The most popular months for travelers flying from San Antonio to Seattle are March, April, and July, when peak temperatures in Seattle reach up to 67.1°F in July. If you prefer quieter travel, consider October, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 52.7°F. For better deals, September usually offers the lowest average one-way fare around $171. Flight availability peaks in July, with approximately 65 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 38 flights per week.

• Cheapest time to fly: September usually offers good deals with average one-way fare around $171, roughly 13% cheaper than the yearly average.
• More budget-friendly months to fly: October, August, and November typically offer average one-way fares of around $182.
• Most flight options: July has the highest number of flights from San Antonio to Seattle, with approximately 65 flights per week, giving you more flexibility in scheduling your trip.

Month	Temperature	Demand	Weekly Flights	Average one-way Fare
January	40.3°F (4.6°C)	Average	45	$198
February	40.5°F (4.7°C)	Average	38	$189
March	43.9°F (6.6°C)	Slightly High	47	$206
April	48.6°F (9.2°C)	Slightly High	49	$199
May	55.8°F (13.2°C)	Slightly Low	48	$218
June	61.0°F (16.1°C)	Average	59	$208
July	67.1°F (19.5°C)	Slightly High	65	$212
August	67.5°F (19.7°C)	Average	60	$180
September	61.3°F (16.3°C)	Average	56	$171
October	52.7°F (11.5°C)	Slightly Low	53	$178
November	44.2°F (6.8°C)	Slightly Low	45	$186
December	39.2°F (4.0°C)	Average	60	$218

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from San Antonio (SAT) to Seattle (SEA)

• Austin to Seattle (AUS-SEA): Austin-Bergstrom International Airport (AUS) is located approximately 67 miles from San Antonio International Airport (SAT). One-way economy tickets on this route generally fall between $90 and $420, with prices varying based on the time of year and how far in advance you book. Travelers can select from both non-stop and one-stop flights. Leading airlines serving this route include Alaska Airlines and Delta, and options for business and first class service are also available.

How to find the best prices for flights from San Antonio (SAT) to Seattle (SEA)

Getting some of the best deals on flights from San Antonio to Seattle is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually available when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Afternoon departures (12pm-6pm) generally offer lower prices, despite morning flights (5am-12pm) being the most popular. Additionally, flying on Wednesday tends to be cheaper, while Friday remains the most sought-after travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Seattle - Tacoma International Airport from San Antonio International Airport

Seattle welcomes travelers from San Antonio with a range of transport options based on price, convenience, and proximity. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
• Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles from the airport and can be reached on foot, while Tukwila Station, a train station, is approximately 4.3 miles away, typically accessed by car.