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

Travel from Seattle (SEA) to San Antonio (SAT) with a selection of airlines operating this domestic short-haul route. You can explore options from both full-service and budget carriers to find the best itinerary that suits your budget and schedule. Use a flight finder to check weekly flights and discover the flight time that fits your travel plans as you prepare to experience San Antonio's iconic attractions and neighborhoods. Get all the essential details for flights from Seattle-Tacoma International Airport to San Antonio International Airport.

• Fastest flight duration: around 4 hours non-stop
• Route distance: roughly 1,800 miles (2,900 km)
• Flights per week: around 45+ flights with multiple daily departures on average
• Typical fares (one-way): economy tickets often range from $95–$365, depending on seasonality and how far ahead you book

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

Recent traveler bookings highlight the most popular airlines for flights from Seattle to San Antonio, featuring both one-stop and non-stop options. Many passengers prefer layovers at key hubs like Denver International Airport (DEN, approximately 1 hour 15 minutes), Dallas-Fort Worth International Airport (DFW, around 1 hour 15 minutes), and Salt Lake City International Airport (SLC, about a 1-hour layover). These choices provide the flexibility to balance cost, total travel time, and cabin class for the ideal itinerary.

• American Airlines: This full-service airline provides one-stop service, with one-way ticket prices generally between $95 and $340. It makes up about 22% of flights on this route, featuring an in-flight duration of 5 hours and a total travel time of around 6h 30m, including layovers.
• Alaska Airlines: Offering both non-stop and one-stop options, this full-service carrier has one-way fares that typically range from $120 to $450. Alaska Airlines accounts for roughly 20% of departures along this route, with a standard non-stop flight time of 4 hours.
• Southwest Airlines: Known as a low-cost option, Southwest provides non-stop, one-stop, and multi-stop services, with one-way fares usually falling between $95 and $330. It captures about 19% of departures and features a typical 1-stop journey of 5 hours in-flight, totaling around 6h 30m travel time.
• Delta: This full-service airline offers one-stop services, with one-way fares that generally range from $95 to $300. Delta handles approximately 18% of departures on this route, with an in-flight duration of 5 hours and an overall travel time of roughly 6h 30m, including layovers.
• United: A full-service carrier, United provides both non-stop and one-stop flights, with one-way fares typically priced between $105 and $310. It represents about 17% of departures on this route, featuring a standard 1-stop journey with 5 hours of flight time and a total time of around 6h 30m.

Travelers can enhance their journey from Seattle to San Antonio by upgrading their flight. Top airlines include Alaska Airlines with first class and business class, American Airlines featuring first class, and Delta offering both first class and premium economy class options.

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

The most popular months for travelers flying from Seattle to San Antonio are January, March, and April, when peak temperatures in San Antonio reach up to 70°F in April. If you prefer quieter travel, consider September, the least busy time to visit with temperatures around 81°F and typically the lowest average one-way fare (around $184). Flight availability peaks in July, with approximately 66 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 37 flights per week.

• Cheapest time to fly: September usually offers good deals with average one-way fare around $184, roughly 9% cheaper than the yearly average.
• More budget-friendly months to fly: January, October, and August typically offer average one-way fares of around $190.
• Most flight options: July has the highest number of flights from Seattle to San Antonio, with approximately 66 flights per week, giving you more flexibility in scheduling your trip.

Month	Temperature	Demand	Weekly Flights	Average one-way Fare
January	53.2°F (11.8°C)	Moderately High	41	$185
February	56.1°F (13.4°C)	Average	37	$210
March	63.7°F (17.6°C)	Moderately High	49	$218
April	70.0°F (21.1°C)	Moderately High	51	$201
May	76.3°F (24.6°C)	Moderately Low	47	$201
June	82.8°F (28.2°C)	Average	56	$214
July	85.3°F (29.6°C)	Average	66	$204
August	86.5°F (30.3°C)	Average	58	$195
September	81.0°F (27.2°C)	Moderately Low	52	$184
October	72.5°F (22.5°C)	Average	52	$193
November	61.7°F (16.5°C)	Moderately Low	45	$203
December	55.6°F (13.1°C)	Average	57	$232

*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 Seattle (SEA) to San Antonio (SAT)

• Seattle to Austin (SEA-AUS): Austin-Bergstrom International Airport (AUS) is approximately 67 miles from San Antonio International Airport (SAT). One-way economy fares for this route generally fall between $95 and $420, influenced by the season and how far in advance you book. Travelers can choose between non-stop and one-stop flight options. Major airlines operating on this route include Alaska Airlines and Delta. Additionally, there are business and first-class service choices available for passengers.

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

Getting some of the best deals on flights from Seattle to San Antonio 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 typically available when booking at least two months in advance, although most travelers tend to book between two to eight weeks ahead. Departures in the morning (5 a.m. to 12 p.m.) usually offer lower prices and are quite popular, while flying on Tuesday often results in cheaper rates, despite Thursday being the most favored 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 San Antonio International Airport from Seattle - Tacoma International Airport

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

• Hotel transfer: Transfers offer a convenient way to reach your hotel in San Antonio, with private rides that can be arranged in advance.
• Car rental: Renting a car from San Antonio International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at San Antonio 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 San Antonio International Airport, San Antonio Seaport, a seaport, is about 0.4 miles away, while San Antonio Station, a train station, is located approximately 7.5 miles from the airport.