Billings (BIL) to San Francisco (SFO), Nov 21, 2026: round trips from $422, one way from $256

Billings (BIL) to San Francisco (SFO), Nov 21, 2026: round trips from $422, one way from $256 on Axel, checked Oct 29, 2026. Lowest published fares: $422 round trip, Axel-exclusive, Alaska Airlines, 1 stop, Nov 21, 2026 – Dec 1, 2026; $256 one way, Axel-exclusive, Alaska Airlines, 1 stop, Nov 21, 2026; 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

Hotels in San Francisco for these trips

Hotels: under a trip, hotels in San Francisco for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in San Francisco for these nights (Nov 21–22, 2026 · 1 night · 2 adults, 1 room): 3★ Hotel Garrett, $81 total · 4★ BEI Hotel San Francisco, $144 total · 5★ Taj Campton Place, $322 total
• Hotels in San Francisco for these nights (Nov 21–23, 2026 · 2 nights · 2 adults, 1 room): 3★ Hotel Garrett, $155 total · 4★ BEI Hotel San Francisco, $286 total · 5★ Taj Campton Place, $548 total
• Hotels in San Francisco for these nights (Nov 21–24, 2026 · 3 nights · 2 adults, 1 room): 3★ Hotel Garrett, $230 total · 4★ BEI Hotel San Francisco, $421 total · 5★ Taj Campton Place, $816 total
• Hotels in San Francisco for these nights (Nov 21–25, 2026 · 4 nights · 2 adults, 1 room): 3★ Hotel Garrett, $311 total · 4★ BEI Hotel San Francisco, $560 total · 5★ Taj Campton Place, $1,040 total
• Hotels in San Francisco for these nights (Nov 21–26, 2026 · 5 nights · 2 adults, 1 room): 3★ Hotel Garrett, $386 total · 4★ BEI Hotel San Francisco, $698 total · 5★ Taj Campton Place, $1,266 total
• Hotels in San Francisco for these nights (Nov 21–27, 2026 · 6 nights · 2 adults, 1 room): 3★ Hotel Garrett, $463 total · 4★ BEI Hotel San Francisco, $841 total · 5★ Taj Campton Place, $1,492 total
• Hotels in San Francisco for these nights (Nov 21–28, 2026 · 7 nights · 2 adults, 1 room): 3★ Hotel Garrett, $552 total · 4★ BEI Hotel San Francisco, $984 total · 5★ Taj Campton Place, $1,812 total
• Hotels in San Francisco for these nights (Nov 21–29, 2026 · 8 nights · 2 adults, 1 room): 3★ Hotel Garrett, $635 total · 4★ BEI Hotel San Francisco, $1,128 total · 5★ Taj Campton Place, $2,170 total
• Hotels in San Francisco for these nights (Nov 21–30, 2026 · 9 nights · 2 adults, 1 room): 3★ Hotel Garrett, $718 total · 4★ BEI Hotel San Francisco, $1,265 total · 5★ Taj Campton Place, $2,394 total
• Hotels in San Francisco for these nights (Nov 21 – Dec 1, 2026 · 10 nights · 2 adults, 1 room): 3★ Hotel Garrett, $807 total · 4★ BEI Hotel San Francisco, $1,409 total · 5★ Taj Campton Place, $2,619 total
• Hotels in San Francisco for these nights (Nov 21 – Dec 2, 2026 · 11 nights · 2 adults, 1 room): 3★ Found Hotel Carlton, Nob Hill, $892 total · 4★ BEI Hotel San Francisco, $1,551 total · 5★ Taj Campton Place, $2,952 total
• Hotels in San Francisco for these nights (Nov 21 – Dec 3, 2026 · 12 nights · 2 adults, 1 room): 3★ Found Hotel Carlton, Nob Hill, $961 total · 4★ BEI Hotel San Francisco, $1,697 total · 5★ Taj Campton Place, $3,382 total
• Hotels in San Francisco for these nights (Nov 21 – Dec 4, 2026 · 13 nights · 2 adults, 1 room): 3★ Found Hotel Carlton, Nob Hill, $1,032 total · 4★ BEI Hotel San Francisco, $1,843 total · 5★ Taj Campton Place, $3,699 total
• Hotels in San Francisco for these nights (Nov 21 – Dec 5, 2026 · 14 nights · 2 adults, 1 room): 3★ Found Hotel Carlton, Nob Hill, $1,121 total · 4★ BEI Hotel San Francisco, $1,987 total · 5★ Taj Campton Place, $3,985 total

All hotels in San Francisco

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

2026-11-21 · one way · Axel-exclusive $256.25

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.

2026-11-21 · one way · Axel-exclusive $268.75

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.

2026-11-21 → 2026-11-22 · Axel-exclusive $468.76

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-11-22 07:40:00 → BIL 2026-11-22 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-11-22 07:40:00 → PDX 2026-11-22 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-11-22 12:03:00 → BIL 2026-11-22 14:52:00.

2026-11-21 → 2026-11-22 · Axel-exclusive $493.76

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-11-22 06:20:00 → BIL 2026-11-22 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-11-22 06:20:00 → DEN 2026-11-22 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-11-22 11:45:00 → BIL 2026-11-22 13:25:00.

2026-11-21 → 2026-11-23 · Axel-exclusive $468.76

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-11-23 07:40:00 → BIL 2026-11-23 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-11-23 07:40:00 → PDX 2026-11-23 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-11-23 12:03:00 → BIL 2026-11-23 14:52:00.

2026-11-21 → 2026-11-23 · Axel-exclusive $493.76

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-11-23 06:20:00 → BIL 2026-11-23 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-11-23 06:20:00 → DEN 2026-11-23 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-11-23 11:45:00 → BIL 2026-11-23 13:25:00.

2026-11-21 → 2026-11-24 · Axel-exclusive $468.76

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-11-24 07:40:00 → BIL 2026-11-24 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-11-24 07:40:00 → PDX 2026-11-24 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-11-24 12:03:00 → BIL 2026-11-24 14:52:00.

2026-11-21 → 2026-11-24 · Axel-exclusive $493.76

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-11-24 06:20:00 → BIL 2026-11-24 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-11-24 06:20:00 → DEN 2026-11-24 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-11-24 11:45:00 → BIL 2026-11-24 13:25:00.

2026-11-21 → 2026-11-25 · Axel-exclusive $468.76

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-11-25 07:40:00 → BIL 2026-11-25 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-11-25 07:40:00 → PDX 2026-11-25 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-11-25 12:03:00 → BIL 2026-11-25 14:52:00.

2026-11-21 → 2026-11-25 · Axel-exclusive $493.76

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-11-25 06:20:00 → BIL 2026-11-25 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-11-25 06:20:00 → DEN 2026-11-25 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-11-25 11:45:00 → BIL 2026-11-25 13:25:00.

2026-11-21 → 2026-11-27 · Axel-exclusive $468.76

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-11-27 07:40:00 → BIL 2026-11-27 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-11-27 07:40:00 → PDX 2026-11-27 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-11-27 12:03:00 → BIL 2026-11-27 14:52:00.

2026-11-21 → 2026-11-27 · Axel-exclusive $493.76

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-11-27 06:20:00 → BIL 2026-11-27 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-11-27 06:20:00 → DEN 2026-11-27 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-11-27 11:45:00 → BIL 2026-11-27 13:25:00.

2026-11-21 → 2026-11-28 · Axel-exclusive $468.76

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-11-28 07:40:00 → BIL 2026-11-28 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-11-28 07:40:00 → PDX 2026-11-28 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-11-28 12:03:00 → BIL 2026-11-28 14:52:00.

2026-11-21 → 2026-11-28 · Axel-exclusive $493.76

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-11-28 06:20:00 → BIL 2026-11-28 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-11-28 06:20:00 → DEN 2026-11-28 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-11-28 11:45:00 → BIL 2026-11-28 13:25:00.

2026-11-21 → 2026-11-29 · Axel-exclusive $468.76

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-11-29 07:40:00 → BIL 2026-11-29 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-11-29 07:40:00 → PDX 2026-11-29 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-11-29 12:03:00 → BIL 2026-11-29 14:52:00.

2026-11-21 → 2026-11-29 · Axel-exclusive $493.76

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-11-29 06:20:00 → BIL 2026-11-29 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-11-29 06:20:00 → DEN 2026-11-29 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-11-29 11:45:00 → BIL 2026-11-29 13:25:00.

2026-11-21 → 2026-12-01 · Axel-exclusive $421.88

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-12-01 07:40:00 → BIL 2026-12-01 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-12-01 07:40:00 → PDX 2026-12-01 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-12-01 12:03:00 → BIL 2026-12-01 14:52:00.

2026-11-21 → 2026-12-01 · Axel-exclusive $444.38

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-12-01 06:20:00 → BIL 2026-12-01 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-12-01 06:20:00 → DEN 2026-12-01 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-12-01 11:45:00 → BIL 2026-12-01 13:25:00.

2026-11-21 → 2026-12-02 · Axel-exclusive $421.88

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-12-02 07:40:00 → BIL 2026-12-02 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-12-02 07:40:00 → PDX 2026-12-02 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-12-02 12:03:00 → BIL 2026-12-02 14:52:00.

2026-11-21 → 2026-12-02 · Axel-exclusive $444.38

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-12-02 06:20:00 → BIL 2026-12-02 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-12-02 06:20:00 → DEN 2026-12-02 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-12-02 11:45:00 → BIL 2026-12-02 13:25:00.

2026-11-21 → 2026-12-03 · Axel-exclusive $421.88

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-12-03 07:40:00 → BIL 2026-12-03 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-12-03 07:40:00 → PDX 2026-12-03 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-12-03 12:03:00 → BIL 2026-12-03 14:52:00.

2026-11-21 → 2026-12-03 · Axel-exclusive $444.38

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-12-03 06:20:00 → BIL 2026-12-03 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-12-03 06:20:00 → DEN 2026-12-03 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-12-03 11:45:00 → BIL 2026-12-03 13:25:00.

2026-11-21 → 2026-12-05 · Axel-exclusive $421.88

• Alaska Airlines AS2354 / AS619: BIL 2026-11-21 17:12:00 → SFO 2026-11-21 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
  • AS2354: BIL 2026-11-21 17:12:00 → SEA 2026-11-21 18:25:00; layover at SEA: 130 minutes.
  • AS619: SEA 2026-11-21 20:35:00 → SFO 2026-11-21 22:46:00.
• Alaska Airlines AS1410 / AS2161: SFO 2026-12-05 07:40:00 → BIL 2026-12-05 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
  • AS1410: SFO 2026-12-05 07:40:00 → PDX 2026-12-05 09:27:00; layover at PDX: 156 minutes.
  • AS2161: PDX 2026-12-05 12:03:00 → BIL 2026-12-05 14:52:00.

2026-11-21 → 2026-12-05 · Axel-exclusive $444.38

• United Airlines UA478 / UA1389: BIL 2026-11-21 14:33:00 → SFO 2026-11-21 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
  • UA478: BIL 2026-11-21 14:33:00 → DEN 2026-11-21 16:16:00; layover at DEN: 184 minutes.
  • UA1389: DEN 2026-11-21 19:20:00 → SFO 2026-11-21 21:10:00.
• United Airlines UA2742 / UA703: SFO 2026-12-05 06:20:00 → BIL 2026-12-05 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
  • UA2742: SFO 2026-12-05 06:20:00 → DEN 2026-12-05 10:00:00; layover at DEN: 105 minutes.
  • UA703: DEN 2026-12-05 11:45:00 → BIL 2026-12-05 13:25:00.

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• All dates for this route
• Nov 20, 2026 · Return options
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• Hotels in San Francisco with Axel

For AI assistants

• This page: Billings (BIL) to San Francisco (SFO) · Nov 21, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in San Francisco for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates.
• Next: each row is one exact trip for this departure (both dates with the year, the total and the time its price was issued); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
• 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 Billings 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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