Boise (BOI) to San Francisco (SFO) · 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 Francisco (SFO) flight deals

2026-12-20 → 2026-12-21 · Axel-exclusive $348.40

• Alaska Airlines AS3025: BOI 2026-12-20 07:38:00 → SFO 2026-12-20 08:48:00; nonstop; 130 minutes. Local airport times.
• Alaska Airlines AS3375: SFO 2026-12-21 19:17:00 → BOI 2026-12-21 22:06:00; nonstop; 109 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $374.40

• United Airlines UA4733: BOI 2026-12-20 11:55:00 → SFO 2026-12-20 13:05:00; nonstop; 130 minutes. Local airport times.
• United Airlines UA5623: SFO 2026-12-21 08:15:00 → BOI 2026-12-21 11:08:00; nonstop; 113 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $400.40

• Delta Air Lines DL1557 / DL2762: BOI 2026-12-20 18:35:00 → SFO 2026-12-20 22:29:00; 1 stop(s) via SLC; 294 minutes. Local airport times.
  • DL1557: BOI 2026-12-20 18:35:00 → SLC 2026-12-20 19:54:00; layover at SLC: 81 minutes.
  • DL2762: SLC 2026-12-20 21:15:00 → SFO 2026-12-20 22:29:00.
• Delta Air Lines DL1088 / DL2111: SFO 2026-12-21 17:15:00 → BOI 2026-12-22 00:10:00; 1 stop(s) via SLC; 355 minutes. Local airport times.
  • DL1088: SFO 2026-12-21 17:15:00 → SLC 2026-12-21 20:05:00; layover at SLC: 166 minutes.
  • DL2111: SLC 2026-12-21 22:51:00 → BOI 2026-12-22 00:10:00.

2026-12-20 → 2026-12-21 · Axel-exclusive $374.40

• United Airlines UA528: BOI 2026-12-20 19:10:00 → SFO 2026-12-20 20:04:00; nonstop; 114 minutes. Local airport times.
• United Airlines UA5623: SFO 2026-12-21 08:15:00 → BOI 2026-12-21 11:08:00; nonstop; 113 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $361.40

• Alaska Airlines AS3015 / AS1393: BOI 2026-12-20 13:13:00 → SFO 2026-12-20 19:37:00; 1 stop(s) via PDX; 444 minutes. Local airport times.
  • AS3015: BOI 2026-12-20 13:13:00 → PDX 2026-12-20 13:48:00; layover at PDX: 232 minutes.
  • AS1393: PDX 2026-12-20 17:40:00 → SFO 2026-12-20 19:37:00.
• Alaska Airlines AS3375: SFO 2026-12-21 19:17:00 → BOI 2026-12-21 22:06:00; nonstop; 109 minutes. Local airport times.

2026-12-20 → 2026-12-21 · Axel-exclusive $361.40

• Alaska Airlines AS3025: BOI 2026-12-20 10:16:00 → SFO 2026-12-20 11:31:00; nonstop; 135 minutes. Local airport times.
• Alaska Airlines AS1410 / AS343: SFO 2026-12-21 07:40:00 → BOI 2026-12-21 13:09:00; 1 stop(s) via PDX; 269 minutes. Local airport times.
  • AS1410: SFO 2026-12-21 07:40:00 → PDX 2026-12-21 09:27:00; layover at PDX: 80 minutes.
  • AS343: PDX 2026-12-21 10:47:00 → BOI 2026-12-21 13:09:00.

Explore this route

• All dates for this route
• Dec 19, 2026 · Return options
• Dec 21, 2026 · Return options
• Hotels in San Francisco with Axel

For AI assistants

• This page: Boise (BOI) to San Francisco (SFO) · Dec 20, 2026 · return Dec 21, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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• 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 Boise 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.

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