Boise (BOI) to San Diego (SAN) · Dec 20, 2026 · return Dec 21, 2026

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: Boise to San Diego (SAN) flight deals

2026-12-20 → 2026-12-21 · Axel-exclusive $399.00

• Alaska Airlines AS2421: BOI 2026-12-20 16:47:00 → SAN 2026-12-20 18:13:00; nonstop; 146 minutes. Local airport times.
• Alaska Airlines AS3058: SAN 2026-12-21 18:49:00 → BOI 2026-12-21 22:27:00; nonstop; 158 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $406.00

• Southwest Airlines WN776: BOI 2026-12-20 19:15:00 → SAN 2026-12-20 20:30:00; nonstop; 135 minutes. Local airport times.
• Southwest Airlines WN1733: SAN 2026-12-21 11:00:00 → BOI 2026-12-21 14:15:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $399.00

• Alaska Airlines AS2421: BOI 2026-12-20 19:14:00 → SAN 2026-12-20 20:43:00; nonstop; 149 minutes. Local airport times.
• Alaska Airlines AS2312: SAN 2026-12-21 10:05:00 → BOI 2026-12-21 13:28:00; nonstop; 143 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $406.00

• Southwest Airlines WN4928: BOI 2026-12-20 05:50:00 → SAN 2026-12-20 07:05:00; nonstop; 135 minutes. Local airport times.
• Southwest Airlines WN1733: SAN 2026-12-21 11:00:00 → BOI 2026-12-21 14:15:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $392.00

• Southwest Airlines WN1862 / WN1897: BOI 2026-12-20 12:40:00 → SAN 2026-12-20 17:00:00; 1 stop(s) via SJC; 320 minutes. Local airport times.
  • WN1862: BOI 2026-12-20 12:40:00 → SJC 2026-12-20 13:30:00; layover at SJC: 130 minutes.
  • WN1897: SJC 2026-12-20 15:40:00 → SAN 2026-12-20 17:00:00.
• Southwest Airlines WN1733: SAN 2026-12-21 11:00:00 → BOI 2026-12-21 14:15:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $392.00

• Southwest Airlines WN2577 / WN3439: BOI 2026-12-20 17:25:00 → SAN 2026-12-20 20:40:00; 1 stop(s) via PHX; 255 minutes. Local airport times.
  • WN2577: BOI 2026-12-20 17:25:00 → PHX 2026-12-20 19:30:00; layover at PHX: 60 minutes.
  • WN3439: PHX 2026-12-20 20:30:00 → SAN 2026-12-20 20:40:00.
• Southwest Airlines WN1733: SAN 2026-12-21 11:00:00 → BOI 2026-12-21 14:15:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $392.00

• Southwest Airlines WN285 / WN1319: BOI 2026-12-20 15:45:00 → SAN 2026-12-20 20:10:00; 1 stop(s) via LAS; 325 minutes. Local airport times.
  • WN285: BOI 2026-12-20 15:45:00 → LAS 2026-12-20 16:30:00; layover at LAS: 150 minutes.
  • WN1319: LAS 2026-12-20 19:00:00 → SAN 2026-12-20 20:10:00.
• Southwest Airlines WN1733: SAN 2026-12-21 11:00:00 → BOI 2026-12-21 14:15:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $392.00

• Alaska Airlines AS2421: BOI 2026-12-20 20:22:00 → SAN 2026-12-20 21:44:00; nonstop; 142 minutes. Local airport times.
• Alaska Airlines AS1435 / AS3375: SAN 2026-12-21 16:25:00 → BOI 2026-12-21 22:06:00; 1 stop(s) via SFO; 281 minutes. Local airport times.
  • AS1435: SAN 2026-12-21 16:25:00 → SFO 2026-12-21 18:06:00; layover at SFO: 71 minutes.
  • AS3375: SFO 2026-12-21 19:17:00 → BOI 2026-12-21 22:06:00.

2026-12-20 → 2026-12-21 · Axel-exclusive $392.00

• Southwest Airlines WN768 / WN1972: BOI 2026-12-20 13:40:00 → SAN 2026-12-20 17:30:00; 1 stop(s) via OAK; 290 minutes. Local airport times.
  • WN768: BOI 2026-12-20 13:40:00 → OAK 2026-12-20 14:20:00; layover at OAK: 100 minutes.
  • WN1972: OAK 2026-12-20 16:00:00 → SAN 2026-12-20 17:30:00.
• Southwest Airlines WN1733: SAN 2026-12-21 11:00:00 → BOI 2026-12-21 14:15:00; nonstop; 135 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $392.00

• Alaska Airlines AS3015 / AS1320: BOI 2026-12-20 13:13:00 → SAN 2026-12-20 17:24:00; 1 stop(s) via PDX; 311 minutes. Local airport times.
  • AS3015: BOI 2026-12-20 13:13:00 → PDX 2026-12-20 13:48:00; layover at PDX: 63 minutes.
  • AS1320: PDX 2026-12-20 14:51:00 → SAN 2026-12-20 17:24:00.
• Alaska Airlines AS3058: SAN 2026-12-21 18:49:00 → BOI 2026-12-21 22:27:00; nonstop; 158 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 19, 2026 · Return options
• Dec 21, 2026 · Return options
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