Flight Deals from Washington to San Antonio from $138

Flights from Washington to San Antonio cover about 1,379 miles. The typical nonstop flight takes about 3 hours 40 minutes outbound, with the return leg running about 3 hours 21 minutes, so the trip back is a bit quicker.

Methodology

Flight times and distances come from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). The typical flight time is the median scheduled block time across all carriers on the route, computed the same way in both directions so the difference reflects prevailing winds rather than any change in method. Distance is the great-circle distance between the two airports, so the actual flown track is typically 2-5% longer.

United Airlines and American Airlines are the two carriers currently scheduled non-stop from Washington to San Antonio. United flies from Dulles (IAD) up to 14 times a week — 13 daily departures plus an extra Saturday flight — while American flies daily from Reagan National (DCA). Both airlines run daily, with United's sole non-daily flight operating Saturdays only.

Methodology

Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.

San Antonio International Airport is about 8 miles north of downtown, and travelers have several solid ground transportation options. VIA Metropolitan Transit provides an affordable public bus service into the city, while taxis and rideshares such as Uber operate from designated pickup areas with downtown ride times averaging 15–20 minutes. Many hotels also run shuttle services, and rental cars are available at the on-site Consolidated Rental Car Facility. For most visitors, rideshare or taxi is the most-used and fastest door-to-door option, while the VIA bus is the budget-friendly choice.

References

• Find cheap flights to San Antonio (SAT) | American Airlinesaa.com · Published Sep 5, 2026
• Home - San Antonio International Airportsanantonio.gov · Published Jul 28, 2026
• How to get from San Antonio International Airport (SAT) to Austin, TX | Uberuber.com · Published Oct 1, 2026
• How to get from San Antonio International Airport (SAT) to Downtown, San Antonio TX | Uberuber.com · Published Sep 14, 2026
• Best prices on ticket flights from San Antonio (SAT) with Volaris from USD90volaris.com · Published Aug 19, 2026
• BUSINESS - San Antonio International Airportsanantonio.gov · Published Apr 14, 2026

Fares from Washington to San Antonio are lowest in late August, around $254. August is the cheapest month overall, averaging $262, followed by January ($263) and September ($271). December is the most expensive month at about $316, and fares peak in late December at about $338. The yearly average is $282. Fares are adjusted to current market conditions.

Methodology

Seasonal fares come from Priceline's own air booking-summary archive, analysed in-house and refreshed monthly. For each day of the year we take a representative round-trip fare, a blend of the 25th-percentile and average ticket price over the route's bookings, and smooth the series into a seasonal curve; the half-month low and high and the monthly figures quoted here are averages of that curve. Thin and international routes borrow their seasonal shape from the nearest busy routes, with the price level anchored to the route's own bookings.

Book about 5 weeks before departure for the best fares from Washington to San Antonio, around $270. Booking in the final days before the flight costs about $325, $55 more. Booking six months ahead runs about $440. Fares are adjusted to current market conditions.

Methodology

Booking-window guidance comes from the same monthly in-house analysis of Priceline's own air booking-summary archive. We aggregate the route's bookings by how many days before departure they were made, from about 180 days out to the day of travel, smooth the curve, and highlight the stretch of lead times with the lowest average fare. Thin and international routes borrow the curve shape from the nearest busy routes, anchored to the route's own price level. It reflects current fares and is refreshed monthly.

No nonstop red-eye flights operate from Washington to San Antonio, but connecting overnight itineraries are available with Southwest, whose long red-eye leg into San Antonio departs Nashville at 10:15 PM and arrives at 12:45 AM, or departs Chicago Midway at 9:20 PM and arrives at 12:10 AM — both landing just after midnight in the early hours. These itineraries connect through Nashville or Chicago Midway before the overnight leg into San Antonio.

Methodology

Red-eye flights are identified from scheduled local departure and arrival times and block times in our flight-schedule database — built from published airline timetables and official schedule data, including U.S. Department of Transportation records for domestic routes. A flight counts as a red-eye when it departs in the afternoon or evening (3 p.m. or later local time) or in the early hours before 4 a.m., and is in the air at some point between midnight and 4 a.m. local time at both its departure airport and its arrival airport. An evening flight that lands before midnight at its destination is never counted, nor is a morning departure or a daytime long-haul that reaches the next calendar date only because of time zones. Each red-eye is labelled with its timing (for example, overnight and landing the next morning, or late-night and landing after midnight). For connecting itineraries the same rule is applied to the longer leg, from one representative day's flight search.

United Airlines and American Airlines operate nonstop flights from Washington to San Antonio. United flies 14 weekly departures from Dulles, with 13 daily flights and one Saturday-only flight operated by Mesa Airlines, while American flies daily from Reagan National. United is a Star Alliance member and American is oneworld.

Methodology

Airlines and weekly frequencies come from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a typical fare is shown for a carrier, it is the median of the real fares Priceline users found on this route in the last 72 hours.

United is the most reliable carrier on this route, with 83.1% of arrivals landing within 15 minutes of schedule and a cancellation rate of just 0.2%. American Airlines trails at 50.8% on-time arrivals with a 1.6% cancellation rate.

Methodology

On-time arrival and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; a flight counts as on time when it arrives within 15 minutes of schedule. Carriers are ranked by arrival on-time rate on this route, and the carrier list itself comes from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI).

San Antonio has one commercial airport, San Antonio International, located about 8 miles north of downtown and convenient to the River Walk and Alamo.

Getting to Washington Dulles from downtown DC is easiest via the Metrorail Silver Line, which runs directly from the airport to the city center in about 53 minutes for a few dollars, making it the most popular and economical choice. Ride-share apps like Uber and Lyft offer door-to-door convenience and are typically the fastest option, with fares higher than transit but usually less than a taxi. Taxis operated by Washington Flyer are available 24/7 and cost around $65 for the 30–60 minute trip, while shared shuttle vans and private car services provide a middle ground. Driving and parking at Dulles is possible with several on-site lots, though it's generally the least cost-effective option for solo travelers.

References

• IAD Airport Transportation | Black Car, SUV & Van | SuperShuttlesupershuttle.com · Published May 4, 2026
• Book Flights to Washington DC | Turkish Airlines ®turkishairlines.com
• Flüge nach Washington DC | Turkish Airlines ® | Stadtführerturkishairlines.com
• How to get from Dulles Airport (IAD) to Washington, DC | Uberuber.com · Published Sep 11, 2026
• Washington Dulles Airport (IAD) to Washington DC Trains | 7-Day Timetablerome2rio.com · Published Aug 20, 2026
• Transfer Washington City Center to Dulles Airport (IAD) in Washington Dc, USA - 20 minutes to 1 hour - 138165P370 - Trip Canvasaaa.com
• flydulles.com - Portuguese (Português)flydulles.com
• flydulles.com - Simplified Chinese (简体中文)flydulles.com

There are no hotels directly connected to or on-site at San Antonio International Airport. If you need a room, there are many nearby hotels just outside the airport, including Embassy Suites, Days Inn by Wyndham, Hampton Inn & Suites, TownePlace Suites, and Courtyard by Marriott, several of which offer free airport shuttles. Sleeping inside the terminal is possible but basic, with no dedicated rest zones or cots, and you'll be restricted to the landside areas after security closes for the night.

References

• 15 Best Hotels near San Antonio Intl Airport (SAT) for 2026 | U.S. News Traveltravel.usnews.com · Published Jul 25, 2025
• San Antonio Airport Guide (SAT) - Sleeping in Airportssleepinginairports.net · Published Oct 1, 2018
• TownePlace Suites San Antonio Airport - Free Shuttle to SAT Airportmarriott.com · Published Feb 18, 2025
• Holiday Inn Express San Antonio-Airport Map & Driving Directions | Parking Options for Holiday Inn Express San Antonio-Airport in San Antonioihg.com
• San Antonio International Airport (San Antonio Texas) | Park Stay Fly Deals from $91 - Stay Park Travelstayparktravel.com · Published Apr 30, 2026
• San Antonio International Airport (San Antonio Texas) | Park Stay Fly Deals from $91 - Park Sleep Hotelsparksleephotels.com · Published May 3, 2026
• San Antonio Hotel near Airport | Courtyard SAT Airportmarriott.com · Published Feb 18, 2025

San Antonio International Airport offers free Wi-Fi throughout the terminals, with power outlets and USB charging points available throughout, plus FuelRod portable charging kiosks for purchase in both landside and airside areas. ATMs are available throughout the terminals on both sides of security, and currency exchange services with a self-service machine are located in the ticket lobbies of both terminals. Travelers can visit an interfaith meditation room in the Terminal B ticket lobby, open 24 hours, and private lactation rooms with seating and power outlets are available in both terminals. Duty-free shopping is offered airside in Terminal A, with additional news, gift, and convenience shops throughout, and permanent and rotating art exhibits are displayed across the terminals. Designated pet relief areas are available outdoors landside and indoors airside in each terminal, and information desks are located in the ticket lobbies of both terminals. No public showers are available.

References

• San Antonio Airport Guide (SAT) - Sleeping in Airportssleepinginairports.net · Published Oct 1, 2018
• San Antonio Airport (SAT) | Terminal maps | Airport guideairport.guide
• Surf Air | Private Flights from San Antonio Int. (SAT) - Surf Airsurfair.com

At Washington Dulles International Airport, shuttle buses and rental car shuttles have wheelchair lifts or ramps, accessible parking is available near terminal entrances, and the Hidden Disabilities Sunflower Program offers lanyards from the USO Lounge or information desks daily from 8:00 AM to 8:00 PM. Wheelchair assistance can be arranged through your airline at the airport. San Antonio International Airport features a Sensory Room near Gate A2 open around the clock, TTY phones, family restrooms with changing stations and adult changing tables, lactation rooms, and free Aira assistance for blind and low-vision travelers; wheelchair service is arranged through your airline or by calling 210.207.3433. The Altitude Inclusion Program and Sunflower Lanyard Program provide additional support for travelers with disabilities or flight anxiety.

References

• flydulles.com - Disability Servicesflydulles.com
• Accessibility - San Antonio International Airportflysanantonio.com

United Airlines operates the most flights from Washington to San Antonio, using Boeing 737 family aircraft on its nonstop service from Dulles. American Airlines also flies nonstop from Reagan National with Airbus A320 family aircraft, while United Express service operated by Mesa Airlines uses Embraer E175 jets.

Methodology

Aircraft types come from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). For U.S. routes the type is grounded in the tail number that actually operated the flight; elsewhere it comes from the airline's filed equipment code. Where the source does not commit to a specific variant we name the aircraft family (for example Airbus A320 family) rather than guess, and where no reliable type is on file the aircraft is omitted rather than estimated. Types describe typical scheduled equipment and can vary with seasonal or day-of-week assignments and last-minute swaps.

United Airlines (Star Alliance) and American Airlines (oneworld) fly nonstop between Washington and San Antonio, with United's service from Dulles partly operated by Mesa Airlines under the United Express brand. Those are the only two alliances served nonstop on this route; other alliances may reach San Antonio through connections. No unaffiliated major carrier flies this route nonstop.

Methodology

Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.

Washington Dulles International Airport offers 13 lounges across the Main Terminal and four concourses, including the Capital One Lounge just beyond TSA PreCheck, three United Clubs in Concourses C and D, and a United Polaris Lounge near Gate C17. The Capital One Lounge sells paid walk-up access to any traveler with a same-day boarding pass, even without a Capital One card, and features grab-and-go food and a full-service coffee bar. Concourse A houses the Air France-KLM Lounge, Etihad Lounge, and Virgin Atlantic Clubhouse, while Concourse B hosts the Turkish Airlines Lounge and British Airways Galleries Lounge. The main Galleries Lounge offers a buffet with hot and cold dishes plus a full-service bar, and the USO Lounge in the Main Terminal is the only pre-security lounge at Dulles.

References

• Washington Dulles Airport (IAD) Lounge Guideloungepair.com · Published Jun 23, 2026
• Airport Lounges at Washington Dulles International Airport [IAD]upgradedpoints.com · Published May 8, 2022
• Lufthansa Business Lounge (Temporarily Closed) at Washington Dulles International Airport | Amex USamericanexpress.com
• Airport lounges at Washington Dulles International Airport (IAD) — The Points Partythepointsparty.com · Published Sep 7, 2026
• Capital One Lounge - IAD | flydulles.comflydulles.com
• The Etihad Lounge at Washington Dulles International Airport (IAD)chase.com
• Washington D.C. Airport | Lounges | At the Airport | Travel Information | ANAana.co.jp
• Washington Dulles International Airport IAD Lounges - IAD Airport Guide and lounges. | Priority Passprioritypass.com · Published Aug 18, 2026

Same‑day changes and standby are allowed only where the fare and airline permit it, with flexible and premium tickets offering the most reliable options on this route.