Seattle to San Antonio (SAT): September 2026 flight deals
Compare trip dates and fares.
Round-trip fare examples
Observed September 16, 2026 (UTC). Search a trip for current prices and flight details.
Round-trip totals in USD for 1 adult · Economy.
| Destination | Trip dates | Days | Axel Member | Airline fare | Stops | Search |
|---|---|---|---|---|---|---|
| San Antonio (SAT) | Sep 21–23, 2026 | 2 | $359 | $401 | 1 stop | Search for 1 adult · Dates · Travelers |
| San Antonio (SAT) | Sep 24–27, 2026 | 3 | $311 | $348 | 1 stop | Search for 1 adult · Dates · Travelers |
| San Antonio (SAT) | Sep 25–27, 2026 | 2 | $311 | $348 | 1 stop | Search for 1 adult · Dates · Travelers |
| San Antonio (SAT) | Sep 25–28, 2026 | 3 | $311 | $348 | 1 stop | Search for 1 adult · Dates · Travelers |
| San Antonio (SAT) | Sep 28–30, 2026 | 2 | $292 | $328 | 1 stop | Search for 1 adult · Dates · Travelers |
| San Antonio (SAT) | Sep 29–30, 2026 | 1 | $292 | $328 | 1 stop | Search for 1 adult · Dates · Travelers |
| San Antonio (SAT) | Sep 30–Oct 2, 2026 | 2 | $277 | $308 | 1 stop | Search for 1 adult · Dates · Travelers |
| San Antonio (SAT) | Sep 30–Oct 6, 2026 | 6 | $213 | $239 | 1 stop | Search for 1 adult · Dates · Travelers |
Compare trip dates
Observed September 17, 2026 (UTC). Check current prices.
USD for the listed travelers.
1 adult · Complete round-trip totals · 2–4 days
Complete round-trip totals; both flights included.
| Trip / travelers | Dates | Flights | Axel Member | Airline fare | Next step |
|---|---|---|---|---|---|
| SEA–SAT · 1 adult | Sep 24–27, 2026 · 3 days | Out: Frontier Airlines · 1 stop (LAS) · 11h 59m; Return: Frontier Airlines · 1 stop (LAS) · 23h 3m | $311 | $348 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–SAT · 1 adult | Sep 24–27, 2026 · 3 days | Out: Frontier Airlines · 1 stop (LAS) · 11h 59m; Return: Frontier Airlines · 1 stop (DEN) · 20h 48m | $386 | $429 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–SAT · 1 adult | Sep 25–28, 2026 · 3 days | Out: Frontier Airlines · 1 stop (LAS) · 14h 3m; Return: Frontier Airlines · 1 stop (LAS) · 13h 52m | $311 | $348 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–SAT · 1 adult | Sep 25–28, 2026 · 3 days | Out: Frontier Airlines · 1 stop (LAS) · 14h 3m; Return: Frontier Airlines · 1 stop (LAS) · 7h 49m | $339 | $378 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–SAT · 1 adult | Sep 25–27, 2026 · 2 days | Out: Frontier Airlines · 1 stop (LAS) · 14h 3m; Return: Frontier Airlines · 1 stop (LAS) · 23h 3m | $311 | $348 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–SAT · 1 adult | Sep 25–27, 2026 · 2 days | Out: Frontier Airlines · 1 stop (LAS) · 14h 3m; Return: Frontier Airlines · 1 stop (DEN) · 20h 48m | $386 | $429 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–SAT · 1 adult | Sep 28–30, 2026 · 2 days | Out: Frontier Airlines · 1 stop (LAS) · 14h 35m; Return: Frontier Airlines · 1 stop (LAS) · 20h 23m | $292 | $328 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
1 adult · Round-trip starting totals · 2–4 days
Starting totals are for the round trip. Choose a return flight to confirm the final total.
| Trip / travelers | Dates | Flights | Axel Member | Airline fare | Next step |
|---|---|---|---|---|---|
| SEA–SAT · 1 adult | Sep 24–27, 2026 · 3 days | Out: Alaska Airlines · Nonstop · 4h 19m | Round-trip starting total: $743 | Round-trip starting total: $827 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–SAT · 1 adult | Sep 25–28, 2026 · 3 days | Out: Alaska Airlines · Nonstop · 4h 20m | Round-trip starting total: $743 | Round-trip starting total: $827 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–SAT · 1 adult | Sep 25–27, 2026 · 2 days | Out: Alaska Airlines · Nonstop · 4h 20m | Round-trip starting total: $743 | Round-trip starting total: $827 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| SEA–SAT · 1 adult | Sep 28–30, 2026 · 2 days | Out: Alaska Airlines · Nonstop · 4h 19m | Round-trip starting total: $743 | Round-trip starting total: $827 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
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More flight comparisons from Seattle
- Seattle to San Antonio (SAT) flight deals
- Flights from Seattle in September 2026
- Seattle to San Antonio (SAT): flights September 21–23, 2026
- Seattle to San Antonio (SAT): flights September 24–27, 2026
- Seattle to San Antonio (SAT): flights September 25–27, 2026
- Seattle to San Antonio (SAT): flights September 25–28, 2026
- Seattle to San Antonio (SAT): flights September 28–30, 2026
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