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Seattle → San Diego

Dec 21, 2026 · return Dec 23, 2026

SEA → SAN1 adulteconomyRound trip

11 flight options · 4 airlines

Nonstop flights

Mon, Dec 21 – Wed, Dec 23

Alaska Airlines
3:00 pmSEA
2h 45m
Nonstop
5:45 pmSAN
Alaska Airlines
2:55 pmSAN
3h 9m
Nonstop
6:04 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

Southwest Airlines
7:00 amSEA
2h 40m
Nonstop
9:40 amSAN
Southwest Airlines
5:55 pmSAN
3h 5m
Nonstop
9:00 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

Delta Air Lines
11:45 amSEA
2h 53m
Nonstop
2:38 pmSAN
Delta Air Lines
3:53 pmSAN
3h 8m
Nonstop
7:01 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

Alaska Airlines
7:50 pmSEA
2h 47m
Nonstop
10:37 pmSAN
Alaska Airlines
2:55 pmSAN
3h 9m
Nonstop
6:04 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

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

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Wed, Dec 23

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

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

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

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

Alaska Airlines
4:35 pmSEA
5h 15m
SMF · 1h 47m
9:50 pmSAN
Alaska Airlines
2:55 pmSAN
3h 9m
Nonstop
6:04 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

Alaska Airlines
12:22 pmSEA
5h 2m
PDX · 1h 27m
5:24 pmSAN
Alaska Airlines
2:55 pmSAN
3h 9m
Nonstop
6:04 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

Alaska Airlines
10:06 amSEA
5h 6m
STS · 1h 8m
3:12 pmSAN
Alaska Airlines
2:55 pmSAN
3h 9m
Nonstop
6:04 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Wed, Dec 23

Alaska Airlines
6:13 pmSEA
5h 1m
SFO · 1h 3m
11:14 pmSAN
Alaska Airlines
2:55 pmSAN
3h 9m
Nonstop
6:04 pmSEA

Round-trip total · 1 adult · Taxes included

Make this trip yours

SEA ⇄ SAN

Economy

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

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Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Alaska Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • 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)
2026-12-21 → 2026-12-23Alaska AirlinesAS765 / AS1660$388.802026-10-29T02:06:33Z
2026-12-21 → 2026-12-23Southwest AirlinesWN2888 / WN3737$388.802026-10-29T02:06:33Z
2026-12-21 → 2026-12-23Delta Air LinesDL2572 / DL2572$415.802026-10-29T02:06:33Z
2026-12-21 → 2026-12-23United AirlinesUA737 + UA1389 / UA2035 + UA726$442.802026-10-29T02:06:33Z
2026-12-21 → 2026-12-23Alaska AirlinesAS791 / AS1660$388.802026-10-29T02:06:33Z
2026-12-21 → 2026-12-23Delta Air LinesDL2672 / DL2572$415.802026-10-29T02:06:33Z
2026-12-21 → 2026-12-23Southwest AirlinesWN2179 + WN429 / WN3737$375.302026-10-29T02:06:33Z
2026-12-21 → 2026-12-23Alaska AirlinesAS764 + AS2368 / AS1660$402.302026-10-29T02:06:33Z
2026-12-21 → 2026-12-23Alaska AirlinesAS488 + AS1320 / AS1660$402.302026-10-29T02:06:33Z
2026-12-21 → 2026-12-23Alaska AirlinesAS1321 + AS3164 / AS1660$402.302026-10-29T02:06:33Z
2026-12-21 → 2026-12-23Alaska AirlinesAS1780 + AS661 / AS1660$402.302026-10-29T02:06:33Z

2026-12-21 → 2026-12-23 · $388.80

  • Alaska Airlines AS765: SEA 2026-12-21 15:00:00 → SAN 2026-12-21 17:45:00; nonstop; 165 minutes. Local airport times.
  • Alaska Airlines AS1660: SAN 2026-12-23 14:55:00 → SEA 2026-12-23 18:04:00; nonstop; 189 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $388.80

  • Southwest Airlines WN2888: SEA 2026-12-21 07:00:00 → SAN 2026-12-21 09:40:00; nonstop; 160 minutes. Local airport times.
  • Southwest Airlines WN3737: SAN 2026-12-23 17:55:00 → SEA 2026-12-23 21:00:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $415.80

  • Delta Air Lines DL2572: SEA 2026-12-21 11:45:00 → SAN 2026-12-21 14:38:00; nonstop; 173 minutes. Local airport times.
  • Delta Air Lines DL2572: SAN 2026-12-23 15:53:00 → SEA 2026-12-23 19:01:00; nonstop; 188 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $442.80

  • United Airlines UA737 / UA1389: SEA 2026-12-21 19:30:00 → SAN 2026-12-22 00:19:00; 1 stop(s) via SFO; 289 minutes. Local airport times.
    • UA737: SEA 2026-12-21 19:30:00 → SFO 2026-12-21 21:42:00; layover at SFO: 60 minutes.
    • UA1389: SFO 2026-12-21 22:42:00 → SAN 2026-12-22 00:19:00.
  • United Airlines UA2035 / UA726: SAN 2026-12-23 06:20:00 → SEA 2026-12-23 11:26:00; 1 stop(s) via LAX; 306 minutes. Local airport times.
    • UA2035: SAN 2026-12-23 06:20:00 → LAX 2026-12-23 07:25:00; layover at LAX: 62 minutes.
    • UA726: LAX 2026-12-23 08:27:00 → SEA 2026-12-23 11:26:00.

2026-12-21 → 2026-12-23 · $388.80

  • Alaska Airlines AS791: SEA 2026-12-21 19:50:00 → SAN 2026-12-21 22:37:00; nonstop; 167 minutes. Local airport times.
  • Alaska Airlines AS1660: SAN 2026-12-23 14:55:00 → SEA 2026-12-23 18:04:00; nonstop; 189 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $415.80

  • Delta Air Lines DL2672: SEA 2026-12-21 19:59:00 → SAN 2026-12-21 22:49:00; nonstop; 170 minutes. Local airport times.
  • Delta Air Lines DL2572: SAN 2026-12-23 15:53:00 → SEA 2026-12-23 19:01:00; nonstop; 188 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $375.30

  • Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
    • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
    • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
  • Southwest Airlines WN3737: SAN 2026-12-23 17:55:00 → SEA 2026-12-23 21:00:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $402.30

  • Alaska Airlines AS764 / AS2368: SEA 2026-12-21 16:35:00 → SAN 2026-12-21 21:50:00; 1 stop(s) via SMF; 315 minutes. Local airport times.
    • AS764: SEA 2026-12-21 16:35:00 → SMF 2026-12-21 18:24:00; layover at SMF: 107 minutes.
    • AS2368: SMF 2026-12-21 20:11:00 → SAN 2026-12-21 21:50:00.
  • Alaska Airlines AS1660: SAN 2026-12-23 14:55:00 → SEA 2026-12-23 18:04:00; nonstop; 189 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $402.30

  • Alaska Airlines AS488 / AS1320: SEA 2026-12-21 12:22:00 → SAN 2026-12-21 17:24:00; 1 stop(s) via PDX; 302 minutes. Local airport times.
    • AS488: SEA 2026-12-21 12:22:00 → PDX 2026-12-21 13:24:00; layover at PDX: 87 minutes.
    • AS1320: PDX 2026-12-21 14:51:00 → SAN 2026-12-21 17:24:00.
  • Alaska Airlines AS1660: SAN 2026-12-23 14:55:00 → SEA 2026-12-23 18:04:00; nonstop; 189 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $402.30

  • Alaska Airlines AS1321 / AS3164: SEA 2026-12-21 10:06:00 → SAN 2026-12-21 15:12:00; 1 stop(s) via STS; 306 minutes. Local airport times.
    • AS1321: SEA 2026-12-21 10:06:00 → STS 2026-12-21 12:18:00; layover at STS: 68 minutes.
    • AS3164: STS 2026-12-21 13:26:00 → SAN 2026-12-21 15:12:00.
  • Alaska Airlines AS1660: SAN 2026-12-23 14:55:00 → SEA 2026-12-23 18:04:00; nonstop; 189 minutes. Local airport times.

2026-12-21 → 2026-12-23 · $402.30

  • Alaska Airlines AS1780 / AS661: SEA 2026-12-21 18:13:00 → SAN 2026-12-21 23:14:00; 1 stop(s) via SFO; 301 minutes. Local airport times.
    • AS1780: SEA 2026-12-21 18:13:00 → SFO 2026-12-21 20:33:00; layover at SFO: 63 minutes.
    • AS661: SFO 2026-12-21 21:36:00 → SAN 2026-12-21 23:14:00.
  • Alaska Airlines AS1660: SAN 2026-12-23 14:55:00 → SEA 2026-12-23 18:04:00; nonstop; 189 minutes. Local airport times.

More dates for this route