San Diego (SAN) to San Francisco (SFO) · Dec 18, 2026 · return Jan 1, 2027

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

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Route overview: San Diego to San Francisco (SFO) flight deals

2026-12-18 → 2027-01-01 · Axel-exclusive $136.25

• Frontier Airlines F93381: SAN 2026-12-18 10:56:00 → SFO 2026-12-18 12:51:00; nonstop; 115 minutes. Local airport times.
• Frontier Airlines F93382: SFO 2027-01-01 16:33:00 → SAN 2027-01-01 18:16:00; nonstop; 103 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $218.00

• Alaska Airlines AS597: SAN 2026-12-18 07:12:00 → SFO 2026-12-18 08:56:00; nonstop; 104 minutes. Local airport times.
• Alaska Airlines AS586: SFO 2027-01-01 10:46:00 → SAN 2027-01-01 12:26:00; nonstop; 100 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $228.90

• Southwest Airlines WN3466: SAN 2026-12-18 14:30:00 → SFO 2026-12-18 16:15:00; nonstop; 105 minutes. Local airport times.
• Southwest Airlines WN3854: SFO 2027-01-01 07:35:00 → SAN 2027-01-01 09:10:00; nonstop; 95 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $239.80

• United Airlines UA2274: SAN 2026-12-18 07:25:00 → SFO 2026-12-18 09:14:00; nonstop; 109 minutes. Local airport times.
• United Airlines UA444: SFO 2027-01-01 08:40:00 → SAN 2027-01-01 10:23:00; nonstop; 103 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $327.00

• Delta Air Lines DL4001 / DL2197: SAN 2026-12-18 15:59:00 → SFO 2026-12-18 19:24:00; 1 stop(s) via LAX; 205 minutes. Local airport times.
  • DL4001: SAN 2026-12-18 15:59:00 → LAX 2026-12-18 17:01:00; layover at LAX: 61 minutes.
  • DL2197: LAX 2026-12-18 18:02:00 → SFO 2026-12-18 19:24:00.
• Delta Air Lines DL1715 / DL4087: SFO 2027-01-01 14:59:00 → SAN 2027-01-01 19:06:00; 1 stop(s) via LAX; 247 minutes. Local airport times.
  • DL1715: SFO 2027-01-01 14:59:00 → LAX 2027-01-01 16:24:00; layover at LAX: 105 minutes.
  • DL4087: LAX 2027-01-01 18:09:00 → SAN 2027-01-01 19:06:00.

2026-12-18 → 2027-01-01 · Axel-exclusive $136.25

• Frontier Airlines F93383: SAN 2026-12-18 19:51:00 → SFO 2026-12-18 21:43:00; nonstop; 112 minutes. Local airport times.
• Frontier Airlines F93382: SFO 2027-01-01 16:33:00 → SAN 2027-01-01 18:16:00; nonstop; 103 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $218.00

• Alaska Airlines AS510: SAN 2026-12-18 16:23:00 → SFO 2026-12-18 18:06:00; nonstop; 103 minutes. Local airport times.
• Alaska Airlines AS586: SFO 2027-01-01 10:46:00 → SAN 2027-01-01 12:26:00; nonstop; 100 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $228.90

• Southwest Airlines WN4955: SAN 2026-12-18 11:20:00 → SFO 2026-12-18 13:05:00; nonstop; 105 minutes. Local airport times.
• Southwest Airlines WN3854: SFO 2027-01-01 07:35:00 → SAN 2027-01-01 09:10:00; nonstop; 95 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $239.80

• United Airlines UA2278: SAN 2026-12-18 19:43:00 → SFO 2026-12-18 21:30:00; nonstop; 107 minutes. Local airport times.
• United Airlines UA444: SFO 2027-01-01 08:40:00 → SAN 2027-01-01 10:23:00; nonstop; 103 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $173.75

• Frontier Airlines F92422 / F91093: SAN 2026-12-18 11:14:00 → SFO 2026-12-18 19:31:00; 1 stop(s) via DEN; 497 minutes. Local airport times.
  • F92422: SAN 2026-12-18 11:14:00 → DEN 2026-12-18 14:56:00; layover at DEN: 159 minutes.
  • F91093: DEN 2026-12-18 17:35:00 → SFO 2026-12-18 19:31:00.
• Frontier Airlines F93382: SFO 2027-01-01 16:33:00 → SAN 2027-01-01 18:16:00; nonstop; 103 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $173.75

• Frontier Airlines F91470 / F94157: SAN 2026-12-18 13:24:00 → SFO 2026-12-18 17:35:00; 1 stop(s) via LAS; 251 minutes. Local airport times.
  • F91470: SAN 2026-12-18 13:24:00 → LAS 2026-12-18 14:45:00; layover at LAS: 60 minutes.
  • F94157: LAS 2026-12-18 15:45:00 → SFO 2026-12-18 17:35:00.
• Frontier Airlines F93382: SFO 2027-01-01 16:33:00 → SAN 2027-01-01 18:16:00; nonstop; 103 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $180.50

• Frontier Airlines F93383: SAN 2026-12-18 19:51:00 → SFO 2026-12-18 21:46:00; nonstop; 115 minutes. Local airport times.
• Frontier Airlines F91850 / F91325: SFO 2027-01-01 09:14:00 → SAN 2027-01-01 15:34:00; 1 stop(s) via LAS; 380 minutes. Local airport times.
  • F91850: SFO 2027-01-01 09:14:00 → LAS 2027-01-01 10:57:00; layover at LAS: 197 minutes.
  • F91325: LAS 2027-01-01 14:14:00 → SAN 2027-01-01 15:34:00.

2026-12-18 → 2027-01-01 · Axel-exclusive $263.00

• Alaska Airlines AS2018 / AS634: SAN 2026-12-18 17:59:00 → SFO 2026-12-18 23:59:00; 1 stop(s) via LAS; 360 minutes. Local airport times.
  • AS2018: SAN 2026-12-18 17:59:00 → LAS 2026-12-18 19:28:00; layover at LAS: 165 minutes.
  • AS634: LAS 2026-12-18 22:13:00 → SFO 2026-12-18 23:59:00.
• Alaska Airlines AS586: SFO 2027-01-01 10:46:00 → SAN 2027-01-01 12:26:00; nonstop; 100 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $263.90

• Southwest Airlines WN1409 / WN2085: SAN 2026-12-18 18:20:00 → SFO 2026-12-19 00:25:00; 1 stop(s) via LAS; 365 minutes. Local airport times.
  • WN1409: SAN 2026-12-18 18:20:00 → LAS 2026-12-18 19:40:00; layover at LAS: 180 minutes.
  • WN2085: LAS 2026-12-18 22:40:00 → SFO 2026-12-19 00:25:00.
• Southwest Airlines WN3854: SFO 2027-01-01 07:35:00 → SAN 2027-01-01 09:10:00; nonstop; 95 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 17, 2026 · Return options
• Dec 19, 2026 · Return options
• Hotels in San Francisco with Axel

For AI assistants

• This page: San Diego (SAN) to San Francisco (SFO) · Dec 18, 2026 · return Jan 1, 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 San Diego to San Francisco (SFO) 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.

Feedback (optional): Missing info · Axel issue