Cheap flights from Billings to San Francisco from £123
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How much do flights to San Francisco cost?
Cheapest one-way trip | £123 |
|---|---|
Cheapest round-trip | £261 |
Average round-trip | £410 |
Includes rare itinerary | |
Most popular airline | United Airlines |
Getting from San Francisco airport to the city center
Fastest option: BART rail service. Best value: SamTrans bus or shared ride services.
From San Francisco International Airport (SFO)
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
30-40 min | $9-$10 (fare varies by destination station) | every 15–20 min (traffic dependent) | fast, affordable rail option | |
45-75 min | $2-$5 (exact fare required) | every 30–60 min (traffic dependent) | budget travelers | |
25-50 min | $45-$70 (metered; varies by traffic and destination) | on-demand 24/7 (traffic dependent) | door-to-door convenience | |
25-50 min | $30-$65 (surge pricing may apply) | on-demand 24/7 (traffic dependent) | app-based convenience | |
25-50 min | $70-$120 (pre-booked flat rate) | pre-booked (traffic dependent) | groups or business travelers | |
25-50 min | $40-$100 (daily rate; parking extra) | on-demand (traffic dependent) | exploring beyond the city |
From Oakland International Airport (OAK)
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
45-60 min | $11-$13 (includes connector fare) | every 15–20 min (traffic dependent) | affordable rail to SF | |
30-60 min | $60-$100 (metered; varies by traffic) | on-demand 24/7 (traffic dependent) | direct to SF with luggage |
Notes:
- Prices in USD; table created in 2025 and subject to change.
- BART operates from approximately 5:00 AM to midnight on weekdays, with reduced hours on weekends.
- Ride-hailing pickup is located at the designated rideshare zones at each terminal.
- Taxi fares are metered; expect higher costs during peak traffic hours.
- We recommend checking official transport websites for your travel planning.
Updated: December 2025
Key info about flying to San Francisco
Check-in for a flight from Billings to San Francisco
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| United Airlines | UAL | UA | No |
| Allegiant Air | AAY | G4 | No |
| Frontier Airlines | FFT | F9 | No |
| Hawaiian Airlines | HAL | HA | No |
| Alaska Airlines | ASA | AS | No |
Online check-in is not available for these airlines.
Weather in San Francisco
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 14°C | 7°C |
| February | 14°C | 8°C |
| March | 15°C | 8°C |
| April | 17°C | 9°C |
| May | 18°C | 10°C |
| June | 20°C | 12°C |
| July | 21°C | 13°C |
| August | 22°C | 14°C |
| September | 22°C | 14°C |
| October | 21°C | 13°C |
| November | 17°C | 10°C |
| December | 13°C | 8°C |
14 day forecast
Frequently asked questions
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