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Seattle → San Antonio

Dec 21, 2026 · return Jan 4, 2027

SEA → SAT1 adulteconomyRound trip

7 flight options · 4 airlines

Nonstop flights

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
11:03 amSEA
3h 57m
Nonstop
5:00 pmSAT
Alaska Airlines
5:29 pmSAT
4h 31m
Nonstop
8:00 pmSEA

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
6:10 amSEA
5h 55m
DEN · 1h 10m
2:05 pmSAT
Southwest Airlines
5:50 amSAT
6h 45m
DAL · 1h 5m
10:35 amSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

American Airlines
3:00 pmSEA
6h 10m
PHX · 1h 8m
11:10 pmSAT
American Airlines
8:00 amSAT
7h 17m
DFW · 1h 18m
1:17 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Delta Air Lines
9:25 amSEA
5h 47m
SLC · 1h
5:12 pmSAT
Delta Air Lines
7:43 amSAT
6h 53m
SLC · 1h 26m
12:36 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
2:05 pmSEA
6h 25m
LAS · 1h 25m
10:30 pmSAT
Southwest Airlines
5:50 amSAT
6h 45m
DAL · 1h 5m
10:35 amSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
12:30 amSEA
6h 3m
DFW · 1h
8:33 amSAT
Alaska Airlines
5:29 pmSAT
4h 31m
Nonstop
8:00 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
10:01 amSEA
4h 1m
Nonstop
4:02 pmSAT
Delta Air Lines
7:43 amSAT
6h 53m
SLC · 1h 26m
12:36 pmSEA

Round-trip total · 1 adult · Taxes included

Make this trip yours

SEA ⇄ SAT

Economy

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

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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)
2026-12-21 → 2027-01-04Alaska AirlinesAS494 / AS494$434.752026-10-29T02:06:35Z
2026-12-21 → 2027-01-04Southwest AirlinesWN4956 + WN61 / WN3769 + WN534$381.882026-10-29T02:06:35Z
2026-12-21 → 2027-01-04American AirlinesAA2073 + AA1829 / AA2070 + AA717$387.752026-10-29T02:06:35Z
2026-12-21 → 2027-01-04Delta Air LinesDL1016 + DL2199 / DL2592 + DL2995$411.252026-10-29T02:06:35Z
2026-12-21 → 2027-01-04Southwest AirlinesWN424 + WN735 / WN3769 + WN534$381.882026-10-29T02:06:35Z
2026-12-21 → 2027-01-04Alaska AirlinesAS424 + AA1836 / AS494$413.752026-10-29T02:06:35Z
2026-12-21 → 2027-01-04Alaska Airlines / Delta Air LinesAS494 / DL2592 + DL2995$425.252026-10-29T02:06:35Z

2026-12-21 → 2027-01-04 · $434.75

  • Alaska Airlines AS494: SEA 2026-12-21 11:03:00 → SAT 2026-12-21 17:00:00; nonstop; 237 minutes. Local airport times.
  • Alaska Airlines AS494: SAT 2027-01-04 17:29:00 → SEA 2027-01-04 20:00:00; nonstop; 271 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $381.88

  • Southwest Airlines WN4956 / WN61: SEA 2026-12-21 06:10:00 → SAT 2026-12-21 14:05:00; 1 stop(s) via DEN; 355 minutes. Local airport times.
    • WN4956: SEA 2026-12-21 06:10:00 → DEN 2026-12-21 09:45:00; layover at DEN: 70 minutes.
    • WN61: DEN 2026-12-21 10:55:00 → SAT 2026-12-21 14:05:00.
  • Southwest Airlines WN3769 / WN534: SAT 2027-01-04 05:50:00 → SEA 2027-01-04 10:35:00; 1 stop(s) via DAL; 405 minutes. Local airport times.
    • WN3769: SAT 2027-01-04 05:50:00 → DAL 2027-01-04 07:05:00; layover at DAL: 65 minutes.
    • WN534: DAL 2027-01-04 08:10:00 → SEA 2027-01-04 10:35:00.

2026-12-21 → 2027-01-04 · $387.75

  • American Airlines AA2073 / AA1829: SEA 2026-12-21 15:00:00 → SAT 2026-12-21 23:10:00; 1 stop(s) via PHX; 370 minutes. Local airport times.
    • AA2073: SEA 2026-12-21 15:00:00 → PHX 2026-12-21 18:52:00; layover at PHX: 68 minutes.
    • AA1829: PHX 2026-12-21 20:00:00 → SAT 2026-12-21 23:10:00.
  • American Airlines AA2070 / AA717: SAT 2027-01-04 08:00:00 → SEA 2027-01-04 13:17:00; 1 stop(s) via DFW; 437 minutes. Local airport times.
    • AA2070: SAT 2027-01-04 08:00:00 → DFW 2027-01-04 09:22:00; layover at DFW: 78 minutes.
    • AA717: DFW 2027-01-04 10:40:00 → SEA 2027-01-04 13:17:00.

2026-12-21 → 2027-01-04 · $411.25

  • Delta Air Lines DL1016 / DL2199: SEA 2026-12-21 09:25:00 → SAT 2026-12-21 17:12:00; 1 stop(s) via SLC; 347 minutes. Local airport times.
    • DL1016: SEA 2026-12-21 09:25:00 → SLC 2026-12-21 12:28:00; layover at SLC: 60 minutes.
    • DL2199: SLC 2026-12-21 13:28:00 → SAT 2026-12-21 17:12:00.
  • Delta Air Lines DL2592 / DL2995: SAT 2027-01-04 07:43:00 → SEA 2027-01-04 12:36:00; 1 stop(s) via SLC; 413 minutes. Local airport times.
    • DL2592: SAT 2027-01-04 07:43:00 → SLC 2027-01-04 09:49:00; layover at SLC: 86 minutes.
    • DL2995: SLC 2027-01-04 11:15:00 → SEA 2027-01-04 12:36:00.

2026-12-21 → 2027-01-04 · $381.88

  • Southwest Airlines WN424 / WN735: SEA 2026-12-21 14:05:00 → SAT 2026-12-21 22:30:00; 1 stop(s) via LAS; 385 minutes. Local airport times.
    • WN424: SEA 2026-12-21 14:05:00 → LAS 2026-12-21 16:30:00; layover at LAS: 85 minutes.
    • WN735: LAS 2026-12-21 17:55:00 → SAT 2026-12-21 22:30:00.
  • Southwest Airlines WN3769 / WN534: SAT 2027-01-04 05:50:00 → SEA 2027-01-04 10:35:00; 1 stop(s) via DAL; 405 minutes. Local airport times.
    • WN3769: SAT 2027-01-04 05:50:00 → DAL 2027-01-04 07:05:00; layover at DAL: 65 minutes.
    • WN534: DAL 2027-01-04 08:10:00 → SEA 2027-01-04 10:35:00.

2026-12-21 → 2027-01-04 · $413.75

  • Alaska Airlines AS424 / AA1836: SEA 2026-12-21 00:30:00 → SAT 2026-12-21 08:33:00; 1 stop(s) via DFW; 363 minutes. Local airport times.
    • AS424: SEA 2026-12-21 00:30:00 → DFW 2026-12-21 06:20:00; layover at DFW: 60 minutes.
    • AA1836: DFW 2026-12-21 07:20:00 → SAT 2026-12-21 08:33:00.
  • Alaska Airlines AS494: SAT 2027-01-04 17:29:00 → SEA 2027-01-04 20:00:00; nonstop; 271 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $425.25

  • Alaska Airlines AS494: SEA 2026-12-21 10:01:00 → SAT 2026-12-21 16:02:00; nonstop; 241 minutes. Local airport times.
  • Delta Air Lines DL2592 / DL2995: SAT 2027-01-04 07:43:00 → SEA 2027-01-04 12:36:00; 1 stop(s) via SLC; 413 minutes. Local airport times.
    • DL2592: SAT 2027-01-04 07:43:00 → SLC 2027-01-04 09:49:00; layover at SLC: 86 minutes.
    • DL2995: SLC 2027-01-04 11:15:00 → SEA 2027-01-04 12:36:00.

More dates for this route