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San Diego → Seattle

Dec 21, 2026 · return Dec 28, 2026

SAN → SEA1 adulteconomyRound trip

11 flight options · 5 airlines

Nonstop flights

Mon, Dec 21 – Mon, Dec 28

Southwest Airlines
5:40 pmSAN
3h 5m
Nonstop
8:45 pmSEA
Southwest Airlines
7:00 amSEA
2h 40m
Nonstop
9:40 amSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Alaska Airlines
7:15 amSAN
3h 12m
Nonstop
10:27 amSEA
Alaska Airlines
3:00 pmSEA
2h 45m
Nonstop
5:45 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Delta Air Lines
3:53 pmSAN
3h 8m
Nonstop
7:01 pmSEA
Delta Air Lines
7:59 pmSEA
2h 50m
Nonstop
10:49 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Alaska Airlines
5:20 pmSAN
3h 7m
Nonstop
8:27 pmSEA
Alaska Airlines
3:00 pmSEA
2h 45m
Nonstop
5:45 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Delta Air Lines
7:30 amSAN
3h 15m
Nonstop
10:45 amSEA
Delta Air Lines
7:59 pmSEA
2h 50m
Nonstop
10:49 pmSAN

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Mon, Dec 28

Frontier Airlines
11:26 amSAN
5h 44m
LAS · 1h 10m
5:10 pmSEA
Alaska Airlines
3:00 pmSEA
2h 45m
Nonstop
5:45 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

United Airlines
6:20 amSAN
5h 6m
LAX · 1h 2m
11:26 amSEA
United Airlines
7:30 pmSEA
4h 49m
SFO · 1h
12:19 am+1SAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Southwest Airlines
5:55 pmSAN
3h 5m
Nonstop
9:00 pmSEA
Southwest Airlines
12:35 pmSEA
5h 10m
SJC · 1h 25m
5:45 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Alaska Airlines
4:26 pmSAN
5h 41m
OAK · 1h 41m
10:07 pmSEA
Alaska Airlines
3:00 pmSEA
2h 45m
Nonstop
5:45 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

Alaska Airlines
9:12 amSAN
5h 37m
EUG · 1h 35m
2:49 pmSEA
Alaska Airlines
3:00 pmSEA
2h 45m
Nonstop
5:45 pmSAN

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Dec 28

United Airlines
6:23 pmSAN
5h 21m
SFO · 1h 20m
11:44 pmSEA
United Airlines
7:30 pmSEA
4h 49m
SFO · 1h
12:19 am+1SAN

Round-trip total · 1 adult · Taxes included

Make this trip yours

SAN ⇄ SEA

Economy

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

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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 → 2026-12-28Southwest AirlinesWN3737 / WN2888$376.602026-10-29T01:10:14Z
2026-12-21 → 2026-12-28Alaska AirlinesAS792 / AS765$390.602026-10-29T01:10:14Z
2026-12-21 → 2026-12-28Delta Air LinesDL2572 / DL2672$404.602026-10-29T01:10:14Z
2026-12-21 → 2026-12-28Frontier Airlines / Alaska AirlinesF91466 + F94203 / AS765$313.602026-10-29T01:10:14Z
2026-12-21 → 2026-12-28United AirlinesUA2035 + UA726 / UA737 + UA1389$418.602026-10-29T01:10:14Z
2026-12-21 → 2026-12-28Alaska AirlinesAS685 / AS765$390.602026-10-29T01:10:14Z
2026-12-21 → 2026-12-28Delta Air LinesDL2530 / DL2672$404.602026-10-29T01:10:14Z
2026-12-21 → 2026-12-28Southwest AirlinesWN3737 / WN2179 + WN429$362.602026-10-29T01:10:14Z
2026-12-21 → 2026-12-28Alaska AirlinesAS3100 + AS1359 / AS765$376.602026-10-29T01:10:14Z
2026-12-21 → 2026-12-28Alaska AirlinesAS3102 + AS3023 / AS765$376.602026-10-29T01:10:14Z
2026-12-21 → 2026-12-28United AirlinesUA1302 + UA1007 / UA737 + UA1389$418.602026-10-29T01:10:14Z

2026-12-21 → 2026-12-28 · $376.60

  • Southwest Airlines WN3737: SAN 2026-12-21 17:40:00 → SEA 2026-12-21 20:45:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN2888: SEA 2026-12-28 07:00:00 → SAN 2026-12-28 09:40:00; nonstop; 160 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $390.60

  • Alaska Airlines AS792: SAN 2026-12-21 07:15:00 → SEA 2026-12-21 10:27:00; nonstop; 192 minutes. Local airport times.
  • Alaska Airlines AS765: SEA 2026-12-28 15:00:00 → SAN 2026-12-28 17:45:00; nonstop; 165 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $404.60

  • Delta Air Lines DL2572: SAN 2026-12-21 15:53:00 → SEA 2026-12-21 19:01:00; nonstop; 188 minutes. Local airport times.
  • Delta Air Lines DL2672: SEA 2026-12-28 19:59:00 → SAN 2026-12-28 22:49:00; nonstop; 170 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $313.60

  • Frontier Airlines F91466 / F94203: SAN 2026-12-21 11:26:00 → SEA 2026-12-21 17:10:00; 1 stop(s) via LAS; 344 minutes. Local airport times.
    • F91466: SAN 2026-12-21 11:26:00 → LAS 2026-12-21 13:01:00; layover at LAS: 70 minutes.
    • F94203: LAS 2026-12-21 14:11:00 → SEA 2026-12-21 17:10:00.
  • Alaska Airlines AS765: SEA 2026-12-28 15:00:00 → SAN 2026-12-28 17:45:00; nonstop; 165 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $418.60

  • United Airlines UA2035 / UA726: SAN 2026-12-21 06:20:00 → SEA 2026-12-21 11:26:00; 1 stop(s) via LAX; 306 minutes. Local airport times.
    • UA2035: SAN 2026-12-21 06:20:00 → LAX 2026-12-21 07:25:00; layover at LAX: 62 minutes.
    • UA726: LAX 2026-12-21 08:27:00 → SEA 2026-12-21 11:26:00.
  • United Airlines UA737 / UA1389: SEA 2026-12-28 19:30:00 → SAN 2026-12-29 00:19:00; 1 stop(s) via SFO; 289 minutes. Local airport times.
    • UA737: SEA 2026-12-28 19:30:00 → SFO 2026-12-28 21:42:00; layover at SFO: 60 minutes.
    • UA1389: SFO 2026-12-28 22:42:00 → SAN 2026-12-29 00:19:00.

2026-12-21 → 2026-12-28 · $390.60

  • Alaska Airlines AS685: SAN 2026-12-21 17:20:00 → SEA 2026-12-21 20:27:00; nonstop; 187 minutes. Local airport times.
  • Alaska Airlines AS765: SEA 2026-12-28 15:00:00 → SAN 2026-12-28 17:45:00; nonstop; 165 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $404.60

  • Delta Air Lines DL2530: SAN 2026-12-21 07:30:00 → SEA 2026-12-21 10:45:00; nonstop; 195 minutes. Local airport times.
  • Delta Air Lines DL2672: SEA 2026-12-28 19:59:00 → SAN 2026-12-28 22:49:00; nonstop; 170 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $362.60

  • Southwest Airlines WN3737: SAN 2026-12-21 17:55:00 → SEA 2026-12-21 21:00:00; nonstop; 185 minutes. Local airport times.
  • Southwest Airlines WN2179 / WN429: SEA 2026-12-28 12:35:00 → SAN 2026-12-28 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
    • WN2179: SEA 2026-12-28 12:35:00 → SJC 2026-12-28 14:55:00; layover at SJC: 85 minutes.
    • WN429: SJC 2026-12-28 16:20:00 → SAN 2026-12-28 17:45:00.

2026-12-21 → 2026-12-28 · $376.60

  • Alaska Airlines AS3100 / AS1359: SAN 2026-12-21 16:26:00 → SEA 2026-12-21 22:07:00; 1 stop(s) via OAK; 341 minutes. Local airport times.
    • AS3100: SAN 2026-12-21 16:26:00 → OAK 2026-12-21 18:15:00; layover at OAK: 101 minutes.
    • AS1359: OAK 2026-12-21 19:56:00 → SEA 2026-12-21 22:07:00.
  • Alaska Airlines AS765: SEA 2026-12-28 15:00:00 → SAN 2026-12-28 17:45:00; nonstop; 165 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $376.60

  • Alaska Airlines AS3102 / AS3023: SAN 2026-12-21 09:12:00 → SEA 2026-12-21 14:49:00; 1 stop(s) via EUG; 337 minutes. Local airport times.
    • AS3102: SAN 2026-12-21 09:12:00 → EUG 2026-12-21 11:57:00; layover at EUG: 95 minutes.
    • AS3023: EUG 2026-12-21 13:32:00 → SEA 2026-12-21 14:49:00.
  • Alaska Airlines AS765: SEA 2026-12-28 15:00:00 → SAN 2026-12-28 17:45:00; nonstop; 165 minutes. Local airport times.

2026-12-21 → 2026-12-28 · $418.60

  • United Airlines UA1302 / UA1007: SAN 2026-12-21 18:23:00 → SEA 2026-12-21 23:44:00; 1 stop(s) via SFO; 321 minutes. Local airport times.
    • UA1302: SAN 2026-12-21 18:23:00 → SFO 2026-12-21 20:10:00; layover at SFO: 80 minutes.
    • UA1007: SFO 2026-12-21 21:30:00 → SEA 2026-12-21 23:44:00.
  • United Airlines UA737 / UA1389: SEA 2026-12-28 19:30:00 → SAN 2026-12-29 00:19:00; 1 stop(s) via SFO; 289 minutes. Local airport times.
    • UA737: SEA 2026-12-28 19:30:00 → SFO 2026-12-28 21:42:00; layover at SFO: 60 minutes.
    • UA1389: SFO 2026-12-28 22:42:00 → SAN 2026-12-29 00:19:00.

More dates for this route