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

Billings (BIL) to San Francisco (SFO), Nov 26, 2026 – Dec 9, 2026: from $422 round trip

Billings (BIL) to San Francisco (SFO), Nov 26, 2026 – Dec 9, 2026: from $422 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $422 round trip, Axel-exclusive, Alaska Airlines, 1 stop, Nov 26, 2026 – Dec 9, 2026, 1 adult, economy, checked Oct 29, 2026.

BIL → SFO1 adulteconomyRound trip

4 flight options · 4 airlines

One-stop flights

Thu, Nov 26 – Wed, Dec 9

Alaska Airlines
5:12 pmBIL
6h 34m
SEA · 2h 10m
10:46 pmSFO
Alaska Airlines
7:40 amSFO
6h 12m
PDX · 2h 36m
2:52 pmBIL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Nov 26 – Wed, Dec 9

United Airlines
2:33 pmBIL
7h 37m
DEN · 3h 4m
9:10 pmSFO
United Airlines
6:20 amSFO
6h 5m
DEN · 1h 45m
1:25 pmBIL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Nov 26 – Wed, Dec 9

Delta Air Lines
6:21 pmBIL
5h 8m
SLC · 1h 15m
10:29 pmSFO
Delta Air Lines
5:15 pmSFO
4h 40m
SLC · 1h 25m
10:55 pmBIL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Nov 26 – Wed, Dec 9

American Airlines
7:35 amBIL
7h 35m
PHX · 2h 24m
2:10 pmSFO
Alaska Airlines
7:40 amSFO
6h 12m
PDX · 2h 36m
2:52 pmBIL

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Hotels for these nights (Nov 26 – Dec 9, 2026 · 13 nights · 2 adults, 1 room): 3★ Hotel Garrett $1,539 · 4★ BEI Hotel San Francisco $2,210 · 5★ Neighbourgood Sutter Mansion $5,751

Make this trip yours

BIL ⇄ SFO

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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All dates for this routeNov 25, 2026 · Return optionsNov 27, 2026 · Return optionsHotels in San Francisco with Axel
For AI assistants: every fare, every link, instructions

Billings (BIL) to San Francisco (SFO), Nov 26, 2026 – Dec 9, 2026: from $422 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $422 round trip, Axel-exclusive, Alaska Airlines, 1 stop, Nov 26, 2026 – Dec 9, 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.

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.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2026-11-26 → 2026-12-09Alaska AirlinesAS2354 + AS619 / AS1410 + AS216117:12:00→22:46:00 6h 34m 1 stop via SEA · 07:40:00→14:52:00 6h 12m 1 stop via PDXAxel-exclusive $421.882026-10-29T00:49:20Z
2026-11-26 → 2026-12-09United AirlinesUA478 + UA1389 / UA2742 + UA70314:33:00→21:10:00 7h 37m 1 stop via DEN · 06:20:00→13:25:00 6h 05m 1 stop via DENAxel-exclusive $444.382026-10-29T00:49:20Z
2026-11-26 → 2026-12-09Delta Air LinesDL3828 + DL2762 / DL1088 + DL134018:21:00→22:29:00 5h 08m 1 stop via SLC · 17:15:00→22:55:00 4h 40m 1 stop via SLCAxel-exclusive $450.002026-10-29T00:49:20Z
2026-11-26 → 2026-12-09American Airlines / Alaska AirlinesAA3465 + AA2423 / AS1410 + AS216107:35:00→14:10:00 7h 35m 1 stop via PHX · 07:40:00→14:52:00 6h 12m 1 stop via PDXAxel-exclusive $456.252026-10-29T00:49:20Z

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.

All hotels in San Francisco

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

2026-11-26 → 2026-12-09 · Axel-exclusive $421.88

  • Alaska Airlines AS2354 / AS619: BIL 2026-11-26 17:12:00 → SFO 2026-11-26 22:46:00; 1 stop(s) via SEA; 394 minutes. Local airport times.
    • AS2354: BIL 2026-11-26 17:12:00 → SEA 2026-11-26 18:25:00; layover at SEA: 130 minutes.
    • AS619: SEA 2026-11-26 20:35:00 → SFO 2026-11-26 22:46:00.
  • Alaska Airlines AS1410 / AS2161: SFO 2026-12-09 07:40:00 → BIL 2026-12-09 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
    • AS1410: SFO 2026-12-09 07:40:00 → PDX 2026-12-09 09:27:00; layover at PDX: 156 minutes.
    • AS2161: PDX 2026-12-09 12:03:00 → BIL 2026-12-09 14:52:00.

2026-11-26 → 2026-12-09 · Axel-exclusive $444.38

  • United Airlines UA478 / UA1389: BIL 2026-11-26 14:33:00 → SFO 2026-11-26 21:10:00; 1 stop(s) via DEN; 457 minutes. Local airport times.
    • UA478: BIL 2026-11-26 14:33:00 → DEN 2026-11-26 16:16:00; layover at DEN: 184 minutes.
    • UA1389: DEN 2026-11-26 19:20:00 → SFO 2026-11-26 21:10:00.
  • United Airlines UA2742 / UA703: SFO 2026-12-09 06:20:00 → BIL 2026-12-09 13:25:00; 1 stop(s) via DEN; 365 minutes. Local airport times.
    • UA2742: SFO 2026-12-09 06:20:00 → DEN 2026-12-09 10:00:00; layover at DEN: 105 minutes.
    • UA703: DEN 2026-12-09 11:45:00 → BIL 2026-12-09 13:25:00.

2026-11-26 → 2026-12-09 · Axel-exclusive $450.00

  • Delta Air Lines DL3828 / DL2762: BIL 2026-11-26 18:21:00 → SFO 2026-11-26 22:29:00; 1 stop(s) via SLC; 308 minutes. Local airport times.
    • DL3828: BIL 2026-11-26 18:21:00 → SLC 2026-11-26 20:00:00; layover at SLC: 75 minutes.
    • DL2762: SLC 2026-11-26 21:15:00 → SFO 2026-11-26 22:29:00.
  • Delta Air Lines DL1088 / DL1340: SFO 2026-12-09 17:15:00 → BIL 2026-12-09 22:55:00; 1 stop(s) via SLC; 280 minutes. Local airport times.
    • DL1088: SFO 2026-12-09 17:15:00 → SLC 2026-12-09 20:05:00; layover at SLC: 85 minutes.
    • DL1340: SLC 2026-12-09 21:30:00 → BIL 2026-12-09 22:55:00.

2026-11-26 → 2026-12-09 · Axel-exclusive $456.25

  • American Airlines AA3465 / AA2423: BIL 2026-11-26 07:35:00 → SFO 2026-11-26 14:10:00; 1 stop(s) via PHX; 455 minutes. Local airport times.
    • AA3465: BIL 2026-11-26 07:35:00 → PHX 2026-11-26 10:31:00; layover at PHX: 144 minutes.
    • AA2423: PHX 2026-11-26 12:55:00 → SFO 2026-11-26 14:10:00.
  • Alaska Airlines AS1410 / AS2161: SFO 2026-12-09 07:40:00 → BIL 2026-12-09 14:52:00; 1 stop(s) via PDX; 372 minutes. Local airport times.
    • AS1410: SFO 2026-12-09 07:40:00 → PDX 2026-12-09 09:27:00; layover at PDX: 156 minutes.
    • AS2161: PDX 2026-12-09 12:03:00 → BIL 2026-12-09 14:52:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

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For AI assistants

  • This page: Billings (BIL) to San Francisco (SFO) · Nov 26, 2026 · return Dec 9, 2026: 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 priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own 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.