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Denver → San Antonio

Dec 17, 2026 · return Dec 18, 2026

DEN → SAT1 adulteconomyRound trip

12 flight options · 4 airlines

Nonstop flights

Thu, Dec 17 – Fri, Dec 18

Frontier Airlines
4:06 pmDEN
2h 19m
Nonstop
7:25 pmSAT
Frontier Airlines
8:47 pmSAT
2h 23m
Nonstop
10:10 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Fri, Dec 18

Southwest Airlines
10:55 amDEN
2h 10m
Nonstop
2:05 pmSAT
Southwest Airlines
6:15 pmSAT
2h 15m
Nonstop
7:30 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Fri, Dec 18

United Airlines
5:30 pmDEN
2h 15m
Nonstop
8:45 pmSAT
United Airlines
4:48 pmSAT
2h 22m
Nonstop
6:10 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Fri, Dec 18

Frontier Airlines
9:14 amDEN
2h 22m
Nonstop
12:36 pmSAT
Frontier Airlines
8:28 pmSAT
2h 29m
Nonstop
9:57 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Fri, Dec 18

Southwest Airlines
2:35 pmDEN
2h 5m
Nonstop
5:40 pmSAT
Southwest Airlines
6:15 pmSAT
2h 15m
Nonstop
7:30 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Fri, Dec 18

United Airlines
9:35 amDEN
2h 11m
Nonstop
12:46 pmSAT
United Airlines
4:48 pmSAT
2h 22m
Nonstop
6:10 pmDEN

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Dec 17 – Fri, Dec 18

American Airlines
9:12 amDEN
4h 38m
DFW · 1h 22m
2:50 pmSAT
American Airlines
6:00 amSAT
4h 49m
DFW · 1h 7m
9:49 amDEN

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Fri, Dec 18

Southwest Airlines
11:25 amDEN
5h 35m
MCI · 1h 50m
6:00 pmSAT
Southwest Airlines
6:15 pmSAT
2h 15m
Nonstop
7:30 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Fri, Dec 18

Southwest Airlines
5:35 amDEN
6h 40m
DAL · 3h 40m
1:15 pmSAT
Southwest Airlines
6:15 pmSAT
2h 15m
Nonstop
7:30 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Fri, Dec 18

Southwest Airlines
4:40 pmDEN
5h 50m
HOU · 2h 30m
11:30 pmSAT
Southwest Airlines
6:15 pmSAT
2h 15m
Nonstop
7:30 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Fri, Dec 18

Southwest Airlines
8:50 amDEN
6h 40m
ELP · 3h 25m
4:30 pmSAT
Southwest Airlines
6:15 pmSAT
2h 15m
Nonstop
7:30 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Dec 17 – Fri, Dec 18

United Airlines
5:00 amDEN
7h 6m
IAH · 3h 22m
1:06 pmSAT
United Airlines
4:48 pmSAT
2h 22m
Nonstop
6:10 pmDEN

Round-trip total · 1 adult · Taxes included

Make this trip yours

DEN ⇄ SAT

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
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Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-17 → 2026-12-18Frontier AirlinesF92356 / F92355$140.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18Southwest AirlinesWN61 / WN3773$250.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18United AirlinesUA217 / UA2479$270.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18American AirlinesAA1523 + AA1961 / AA2342 + AA2357$290.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18Frontier AirlinesF92356 / F93707$140.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18Southwest AirlinesWN2160 / WN3773$250.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18United AirlinesUA1521 / UA2479$270.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18Southwest AirlinesWN1369 + WN802 / WN3773$255.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18Southwest AirlinesWN1749 + WN1165 / WN3773$255.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18Southwest AirlinesWN2433 + WN4470 / WN3773$255.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18Southwest AirlinesWN1934 + WN1916 / WN3773$255.002026-10-29T01:05:09Z
2026-12-17 → 2026-12-18United AirlinesUA320 + UA468 / UA2479$275.002026-10-29T01:05:09Z

2026-12-17 → 2026-12-18 · $140.00

  • Frontier Airlines F92356: DEN 2026-12-17 16:06:00 → SAT 2026-12-17 19:25:00; nonstop; 139 minutes. Local airport times.
  • Frontier Airlines F92355: SAT 2026-12-18 20:47:00 → DEN 2026-12-18 22:10:00; nonstop; 143 minutes. Local airport times.

2026-12-17 → 2026-12-18 · $250.00

  • Southwest Airlines WN61: DEN 2026-12-17 10:55:00 → SAT 2026-12-17 14:05:00; nonstop; 130 minutes. Local airport times.
  • Southwest Airlines WN3773: SAT 2026-12-18 18:15:00 → DEN 2026-12-18 19:30:00; nonstop; 135 minutes. Local airport times.

2026-12-17 → 2026-12-18 · $270.00

  • United Airlines UA217: DEN 2026-12-17 17:30:00 → SAT 2026-12-17 20:45:00; nonstop; 135 minutes. Local airport times.
  • United Airlines UA2479: SAT 2026-12-18 16:48:00 → DEN 2026-12-18 18:10:00; nonstop; 142 minutes. Local airport times.

2026-12-17 → 2026-12-18 · $290.00

  • American Airlines AA1523 / AA1961: DEN 2026-12-17 09:12:00 → SAT 2026-12-17 14:50:00; 1 stop(s) via DFW; 278 minutes. Local airport times.
    • AA1523: DEN 2026-12-17 09:12:00 → DFW 2026-12-17 12:18:00; layover at DFW: 82 minutes.
    • AA1961: DFW 2026-12-17 13:40:00 → SAT 2026-12-17 14:50:00.
  • American Airlines AA2342 / AA2357: SAT 2026-12-18 06:00:00 → DEN 2026-12-18 09:49:00; 1 stop(s) via DFW; 289 minutes. Local airport times.
    • AA2342: SAT 2026-12-18 06:00:00 → DFW 2026-12-18 07:27:00; layover at DFW: 67 minutes.
    • AA2357: DFW 2026-12-18 08:34:00 → DEN 2026-12-18 09:49:00.

2026-12-17 → 2026-12-18 · $140.00

  • Frontier Airlines F92356: DEN 2026-12-17 09:14:00 → SAT 2026-12-17 12:36:00; nonstop; 142 minutes. Local airport times.
  • Frontier Airlines F93707: SAT 2026-12-18 20:28:00 → DEN 2026-12-18 21:57:00; nonstop; 149 minutes. Local airport times.

2026-12-17 → 2026-12-18 · $250.00

  • Southwest Airlines WN2160: DEN 2026-12-17 14:35:00 → SAT 2026-12-17 17:40:00; nonstop; 125 minutes. Local airport times.
  • Southwest Airlines WN3773: SAT 2026-12-18 18:15:00 → DEN 2026-12-18 19:30:00; nonstop; 135 minutes. Local airport times.

2026-12-17 → 2026-12-18 · $270.00

  • United Airlines UA1521: DEN 2026-12-17 09:35:00 → SAT 2026-12-17 12:46:00; nonstop; 131 minutes. Local airport times.
  • United Airlines UA2479: SAT 2026-12-18 16:48:00 → DEN 2026-12-18 18:10:00; nonstop; 142 minutes. Local airport times.

2026-12-17 → 2026-12-18 · $255.00

  • Southwest Airlines WN1369 / WN802: DEN 2026-12-17 11:25:00 → SAT 2026-12-17 18:00:00; 1 stop(s) via MCI; 335 minutes. Local airport times.
    • WN1369: DEN 2026-12-17 11:25:00 → MCI 2026-12-17 14:05:00; layover at MCI: 110 minutes.
    • WN802: MCI 2026-12-17 15:55:00 → SAT 2026-12-17 18:00:00.
  • Southwest Airlines WN3773: SAT 2026-12-18 18:15:00 → DEN 2026-12-18 19:30:00; nonstop; 135 minutes. Local airport times.

2026-12-17 → 2026-12-18 · $255.00

  • Southwest Airlines WN1749 / WN1165: DEN 2026-12-17 05:35:00 → SAT 2026-12-17 13:15:00; 1 stop(s) via DAL; 400 minutes. Local airport times.
    • WN1749: DEN 2026-12-17 05:35:00 → DAL 2026-12-17 08:35:00; layover at DAL: 220 minutes.
    • WN1165: DAL 2026-12-17 12:15:00 → SAT 2026-12-17 13:15:00.
  • Southwest Airlines WN3773: SAT 2026-12-18 18:15:00 → DEN 2026-12-18 19:30:00; nonstop; 135 minutes. Local airport times.

2026-12-17 → 2026-12-18 · $255.00

  • Southwest Airlines WN2433 / WN4470: DEN 2026-12-17 16:40:00 → SAT 2026-12-17 23:30:00; 1 stop(s) via HOU; 350 minutes. Local airport times.
    • WN2433: DEN 2026-12-17 16:40:00 → HOU 2026-12-17 19:55:00; layover at HOU: 150 minutes.
    • WN4470: HOU 2026-12-17 22:25:00 → SAT 2026-12-17 23:30:00.
  • Southwest Airlines WN3773: SAT 2026-12-18 18:15:00 → DEN 2026-12-18 19:30:00; nonstop; 135 minutes. Local airport times.

2026-12-17 → 2026-12-18 · $255.00

  • Southwest Airlines WN1934 / WN1916: DEN 2026-12-17 08:50:00 → SAT 2026-12-17 16:30:00; 1 stop(s) via ELP; 400 minutes. Local airport times.
    • WN1934: DEN 2026-12-17 08:50:00 → ELP 2026-12-17 10:40:00; layover at ELP: 205 minutes.
    • WN1916: ELP 2026-12-17 14:05:00 → SAT 2026-12-17 16:30:00.
  • Southwest Airlines WN3773: SAT 2026-12-18 18:15:00 → DEN 2026-12-18 19:30:00; nonstop; 135 minutes. Local airport times.

2026-12-17 → 2026-12-18 · $275.00

  • United Airlines UA320 / UA468: DEN 2026-12-17 05:00:00 → SAT 2026-12-17 13:06:00; 1 stop(s) via IAH; 426 minutes. Local airport times.
    • UA320: DEN 2026-12-17 05:00:00 → IAH 2026-12-17 08:33:00; layover at IAH: 202 minutes.
    • UA468: IAH 2026-12-17 11:55:00 → SAT 2026-12-17 13:06:00.
  • United Airlines UA2479: SAT 2026-12-18 16:48:00 → DEN 2026-12-18 18:10:00; nonstop; 142 minutes. Local airport times.

More dates for this route