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Route overview: Seattle area (Sea-Tac and Paine Field) to San Diego (SAN) flight deals

Seattle → San Diego

Jan 21, 2027 · return Feb 4, 2027

SEA → SAN1 adulteconomyRound trip

11 flight options · 4 airlines

Nonstop flights

Thu, Jan 21 – Thu, Feb 4

Alaska Airlines
1:00 pmSEA
2h 50m
Nonstop
3:50 pmSAN
Alaska Airlines
7:15 amSAN
3h 12m
Nonstop
10:27 amSEA

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

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

Thu, Jan 21 – Thu, Feb 4

Delta Air Lines
5:55 pmSEA
2h 54m
Nonstop
8:49 pmSAN
Delta Air Lines
3:53 pmSAN
3h 8m
Nonstop
7:01 pmSEA

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

Alaska Airlines
6:00 amSEA
2h 48m
Nonstop
8:48 amSAN
Alaska Airlines
7:15 amSAN
3h 12m
Nonstop
10:27 amSEA

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

Delta Air Lines
7:59 pmSEA
2h 50m
Nonstop
10:49 pmSAN
Delta Air Lines
1:45 pmSAN
3h 12m
Nonstop
4:57 pmSEA

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Jan 21 – Thu, Feb 4

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

Thu, Jan 21 – Thu, Feb 4

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

Thu, Jan 21 – Thu, Feb 4

Alaska Airlines
10:06 amSEA
5h 6m
STS · 1h 8m
3:12 pmSAN
Alaska Airlines
7:15 amSAN
3h 12m
Nonstop
10:27 amSEA

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

Alaska Airlines
6:13 pmSEA
5h 1m
SFO · 1h 3m
11:14 pmSAN
Alaska Airlines
7:15 amSAN
3h 12m
Nonstop
10:27 amSEA

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

Alaska Airlines
4:35 pmSEA
5h 15m
SMF · 1h 47m
9:50 pmSAN
Alaska Airlines
7:15 amSAN
3h 12m
Nonstop
10:27 amSEA

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

Alaska Airlines
12:22 pmSEA
5h 2m
PDX · 1h 27m
5:24 pmSAN
Alaska Airlines
7:15 amSAN
3h 12m
Nonstop
10:27 amSEA

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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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

Explore this route

All dates for this routeJan 20, 2027 → Feb 3, 2027Jan 22, 2027 → Feb 5, 2027
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.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Seattle area (Sea-Tac and Paine Field) to San Diego (SAN) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-01-21 → 2027-02-04Alaska AirlinesAS621 / AS792$288.002026-10-29T02:06:33Z
2027-01-21 → 2027-02-04Southwest AirlinesWN2888 / WN3737$288.002026-10-29T02:06:33Z
2027-01-21 → 2027-02-04Delta Air LinesDL2672 / DL2572$308.002026-10-29T02:06:33Z
2027-01-21 → 2027-02-04United AirlinesUA737 + UA1389 / UA2035 + UA726$328.002026-10-29T02:06:33Z
2027-01-21 → 2027-02-04Alaska AirlinesAS638 / AS792$288.002026-10-29T02:06:33Z
2027-01-21 → 2027-02-04Delta Air LinesDL2672 / DL2533$308.002026-10-29T02:06:33Z
2027-01-21 → 2027-02-04Southwest AirlinesWN2179 + WN429 / WN3737$278.002026-10-29T02:06:33Z
2027-01-21 → 2027-02-04Alaska AirlinesAS1321 + AS3164 / AS792$298.002026-10-29T02:06:33Z
2027-01-21 → 2027-02-04Alaska AirlinesAS1780 + AS661 / AS792$298.002026-10-29T02:06:33Z
2027-01-21 → 2027-02-04Alaska AirlinesAS764 + AS2368 / AS792$298.002026-10-29T02:06:33Z
2027-01-21 → 2027-02-04Alaska AirlinesAS488 + AS1320 / AS792$298.002026-10-29T02:06:33Z

2027-01-21 → 2027-02-04 · $288.00

  • Alaska Airlines AS621: SEA 2027-01-21 13:00:00 → SAN 2027-01-21 15:50:00; nonstop; 170 minutes. Local airport times.
  • Alaska Airlines AS792: SAN 2027-02-04 07:15:00 → SEA 2027-02-04 10:27:00; nonstop; 192 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $288.00

  • Southwest Airlines WN2888: SEA 2027-01-21 07:00:00 → SAN 2027-01-21 09:40:00; nonstop; 160 minutes. Local airport times.
  • Southwest Airlines WN3737: SAN 2027-02-04 17:55:00 → SEA 2027-02-04 21:00:00; nonstop; 185 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $308.00

  • Delta Air Lines DL2672: SEA 2027-01-21 17:55:00 → SAN 2027-01-21 20:49:00; nonstop; 174 minutes. Local airport times.
  • Delta Air Lines DL2572: SAN 2027-02-04 15:53:00 → SEA 2027-02-04 19:01:00; nonstop; 188 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $328.00

  • United Airlines UA737 / UA1389: SEA 2027-01-21 19:30:00 → SAN 2027-01-22 00:19:00; 1 stop(s) via SFO; 289 minutes. Local airport times.
    • UA737: SEA 2027-01-21 19:30:00 → SFO 2027-01-21 21:42:00; layover at SFO: 60 minutes.
    • UA1389: SFO 2027-01-21 22:42:00 → SAN 2027-01-22 00:19:00.
  • United Airlines UA2035 / UA726: SAN 2027-02-04 06:20:00 → SEA 2027-02-04 11:26:00; 1 stop(s) via LAX; 306 minutes. Local airport times.
    • UA2035: SAN 2027-02-04 06:20:00 → LAX 2027-02-04 07:25:00; layover at LAX: 62 minutes.
    • UA726: LAX 2027-02-04 08:27:00 → SEA 2027-02-04 11:26:00.

2027-01-21 → 2027-02-04 · $288.00

  • Alaska Airlines AS638: SEA 2027-01-21 06:00:00 → SAN 2027-01-21 08:48:00; nonstop; 168 minutes. Local airport times.
  • Alaska Airlines AS792: SAN 2027-02-04 07:15:00 → SEA 2027-02-04 10:27:00; nonstop; 192 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $308.00

  • Delta Air Lines DL2672: SEA 2027-01-21 19:59:00 → SAN 2027-01-21 22:49:00; nonstop; 170 minutes. Local airport times.
  • Delta Air Lines DL2533: SAN 2027-02-04 13:45:00 → SEA 2027-02-04 16:57:00; nonstop; 192 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $278.00

  • Southwest Airlines WN2179 / WN429: SEA 2027-01-21 12:35:00 → SAN 2027-01-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
    • WN2179: SEA 2027-01-21 12:35:00 → SJC 2027-01-21 14:55:00; layover at SJC: 85 minutes.
    • WN429: SJC 2027-01-21 16:20:00 → SAN 2027-01-21 17:45:00.
  • Southwest Airlines WN3737: SAN 2027-02-04 17:55:00 → SEA 2027-02-04 21:00:00; nonstop; 185 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $298.00

  • Alaska Airlines AS1321 / AS3164: SEA 2027-01-21 10:06:00 → SAN 2027-01-21 15:12:00; 1 stop(s) via STS; 306 minutes. Local airport times.
    • AS1321: SEA 2027-01-21 10:06:00 → STS 2027-01-21 12:18:00; layover at STS: 68 minutes.
    • AS3164: STS 2027-01-21 13:26:00 → SAN 2027-01-21 15:12:00.
  • Alaska Airlines AS792: SAN 2027-02-04 07:15:00 → SEA 2027-02-04 10:27:00; nonstop; 192 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $298.00

  • Alaska Airlines AS1780 / AS661: SEA 2027-01-21 18:13:00 → SAN 2027-01-21 23:14:00; 1 stop(s) via SFO; 301 minutes. Local airport times.
    • AS1780: SEA 2027-01-21 18:13:00 → SFO 2027-01-21 20:33:00; layover at SFO: 63 minutes.
    • AS661: SFO 2027-01-21 21:36:00 → SAN 2027-01-21 23:14:00.
  • Alaska Airlines AS792: SAN 2027-02-04 07:15:00 → SEA 2027-02-04 10:27:00; nonstop; 192 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $298.00

  • Alaska Airlines AS764 / AS2368: SEA 2027-01-21 16:35:00 → SAN 2027-01-21 21:50:00; 1 stop(s) via SMF; 315 minutes. Local airport times.
    • AS764: SEA 2027-01-21 16:35:00 → SMF 2027-01-21 18:24:00; layover at SMF: 107 minutes.
    • AS2368: SMF 2027-01-21 20:11:00 → SAN 2027-01-21 21:50:00.
  • Alaska Airlines AS792: SAN 2027-02-04 07:15:00 → SEA 2027-02-04 10:27:00; nonstop; 192 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $298.00

  • Alaska Airlines AS488 / AS1320: SEA 2027-01-21 12:22:00 → SAN 2027-01-21 17:24:00; 1 stop(s) via PDX; 302 minutes. Local airport times.
    • AS488: SEA 2027-01-21 12:22:00 → PDX 2027-01-21 13:24:00; layover at PDX: 87 minutes.
    • AS1320: PDX 2027-01-21 14:51:00 → SAN 2027-01-21 17:24:00.
  • Alaska Airlines AS792: SAN 2027-02-04 07:15:00 → SEA 2027-02-04 10:27:00; nonstop; 192 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Seattle (SEA) to San Diego (SAN) · Jan 21, 2027 · return Feb 4, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Seattle area (Sea-Tac and Paine Field) to San Diego (SAN) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.