Find cheap Southwest flights to San Antonio
RDU — SAT
Aug 26 — Sep 21
Round-trip
1 adult, Economy
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Cheapest Southwest flights from USA to San AntonioExplore the most affordable Southwest flight options available from USA to San Antonio. Find the lowest fares with prices last updated on July 27, 2026.
Explore the most affordable Southwest flight options available from USA to San Antonio. Find the lowest fares with prices last updated on July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:25 am
DEN
- SAT
Nonstop2h 10m
Southwest
Sat 8/155:00 pm
SAT
- DEN
Nonstop2h 25m
Southwest
Deal found 7/23![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:05 am
DEN
- SAT
1 stop3h 45m
Southwest
Thu 8/277:50 pm
SAT
- DEN
1 stop4h 45m
Southwest
Deal found 7/23![Southwest logo]()
$272
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:05 am
DEN
- SAT
1 stop3h 45m
Southwest
Wed 8/269:20 am
SAT
- DEN
2 stops5h 50m
Southwest
Deal found 7/25![Southwest logo]()
$278
Best Southwest flights from USA to San AntonioDiscover carefully curated Southwest flight deals from USA to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
Discover carefully curated Southwest flight deals from USA to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:05 pm
DEN
- SAT
Nonstop2h 10m
Southwest
Sat 9/55:00 pm
SAT
- DEN
Nonstop2h 30m
Southwest
Deal found 7/26![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/269:45 am
DEN
- SAT
1 stop7h 00m
Southwest
Tue 12/16:05 am
SAT
- DEN
Nonstop2h 15m
Southwest
Deal found 7/23![Southwest logo]()
$267
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:10 am
DEN
- SAT
1 stop3h 40m
Southwest
Wed 9/97:10 am
SAT
- DEN
1 stop5h 50m
Southwest
Deal found 7/24![Southwest logo]()
$272
Direct Southwest flights from USA to San AntonioExplore non-stop Southwest flight options from USA to San Antonio based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 27, 2026.
Explore non-stop Southwest flight options from USA to San Antonio based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:25 am
DEN
- SAT
Nonstop2h 10m
Southwest
Sat 8/155:00 pm
SAT
- DEN
Nonstop2h 25m
Southwest
Deal found 7/23![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:00 pm
MCO
- SAT
Nonstop2h 55m
Southwest
Mon 10/55:00 am
SAT
- MCO
Nonstop2h 35m
Southwest
Deal found 7/25![Southwest logo]()
$279
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:05 pm
MCO
- SAT
Nonstop3h 00m
Southwest
Sun 9/61:10 pm
SAT
- MCO
Nonstop2h 45m
Southwest
Deal found 7/26![Southwest logo]()
$284
Last-minute Southwest flights from USA to San AntonioDiscover last-minute Southwest flight deals from USA to San Antonio. Data last updated July 27, 2026 and is based on user searches.
Discover last-minute Southwest flight deals from USA to San Antonio. Data last updated July 27, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:25 am
DEN
- SAT
Nonstop2h 10m
Southwest
Sat 8/155:00 pm
SAT
- DEN
Nonstop2h 25m
Southwest
Deal found 7/23![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:05 am
DEN
- SAT
1 stop3h 45m
Southwest
Thu 8/277:50 pm
SAT
- DEN
1 stop4h 45m
Southwest
Deal found 7/23![Southwest logo]()
$272
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:05 am
DEN
- SAT
1 stop3h 45m
Southwest
Wed 8/269:20 am
SAT
- DEN
2 stops5h 50m
Southwest
Deal found 7/25![Southwest logo]()
$278
One-way Southwest flights to San AntonioSearch for one-way Southwest flight options to San Antonio. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
Search for one-way Southwest flight options to San Antonio. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:55 pm
DEN
- SAT
Nonstop2h 15m
Southwest
Deal found 7/24![Southwest logo]()
$129
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:05 am
DEN
- SAT
1 stop3h 45m
Southwest
Deal found 7/24![Southwest logo]()
$134
This Southwest deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:00 am
DEN
- SAT
1 stop5h 50m
Southwest
Deal found 7/22![Southwest logo]()
$139
Flights to San Antonio with Southwest at a glance
Find detailed information about Southwest flights from USA to San Antonio. Explore the options provided by Southwest to plan your journey from USA to San Antonio. Data last updated July 27, 2026.
Cheapflights Insights
Find cheap Southwest flights to San Antonio
US0-SAT
DEN-SAT
MCO-SAT
How long is the flight to San Antonio with Southwest?
On average, Southwest flights from the United States to San Antonio take 3 hours 11 minutes. Flights to San Antonio from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
Southwest weekly flight availability to San Antonio
The most flights to San Antonio operated by Southwest are scheduled on a Monday (45 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).
When is the best time to book a flight to San Antonio with Southwest?
The best time to book a flight to San Antonio with Southwest is 82 days before departure. On average, fares are higher if you book 1 day before departure.
When is the cheapest time to fly to San Antonio with Southwest?
Users looking for the cheapest Southwest fares to San Antonio should consider flying on Tuesday at noon, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday at noon, when prices are usually at their highest.
FAQs about flights to San Antonio with Southwest
Reviews of Southwest
See what Cheapflights users have to say about their Southwest experience.
Overview
Reviews
Southwest
4,229 reviews
Overview
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Recent reviews
10.0
|Jul 2026Good
8.0
|Jun 2026One delay in a 2 layover flight=a good trip. The crew was great.
6.0
|Jun 2026The seats were super cramped and couldn’t move without hitting other passengers
8.0
|Jun 2026The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
10.0
|Jun 2026On time and no problems
1 out of 1410
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