SFO to San Francisco: BART, Caltrain, SamTrans, Taxi and Clipper

Where the BART station is and how you reach it

The SFO BART station sits inside the airport, on the Departures and Ticketing level of the International Terminal on the G Gates side. BART's own airport page states that the station is "a short walk from Terminals 1 and 3," and that from every terminal you can take the free SFO AirTrain to the BART station stop, following the signs upstairs. SFO's own transit page confirms there is no charge to board AirTrain and names the stop as Garage G/BART Station.

If you land internationally, BART gives a specific walking line: turn right when leaving customs, take the escalator up to the departures level, walk straight ahead and turn left at the art exhibit to find the station entrance. Coming the other way, the International Terminal check-in counters are a short walk from the station and the AirTrain Red Line runs to Terminals 1, 2 and 3.

Paying: contactless, Clipper, and no paper tickets

BART no longer sells paper tickets, so your fare comes from either a contactless bank card or a Clipper card. BART's Paying Your Fare page describes Tap and Ride, which lets you tap a contactless debit or credit card or a phone at the fare gate with no set-up at all, and notes that each rider aged five and over needs their own card or device, using the same payment method to enter and to exit.

Clipper is the regional card, administered by the Metropolitan Transportation Commission rather than by BART, and it is worth adding to your phone before you land. BART points out that you can add Clipper to Apple Wallet or Google Wallet in advance instead of queuing at a machine, that every rider aged five and up needs their own digital card, and that a plastic Clipper card bought from a station vending machine carries a one-time USD 3 fee. Funds added through Apple Pay or Google Pay are available immediately.

The SFO fare premium, in figures

Fares on BART are distance-based, but journeys that start or end at SFO carry a premium well beyond the extra distance. Checked on BART's own fare service on 7 September 2026, a one-way adult Clipper fare from SFO to Powell Street was USD 11.80, while the same journey from San Bruno, the next station up the line, was USD 5.70 and from Millbrae was USD 6.15. Confirm the current figure for your own pair of stations on the BART Fare Calculator before budgeting, since fares change.

That gap has a practical consequence rather than a moral one. If you are travelling as a group of three or four with luggage, the arithmetic starts to favour a single taxi or ride-hail vehicle; travelling alone or as a pair, BART still wins comfortably on cost and on traffic.

Caltrain and SamTrans: the two alternatives that matter

Caltrain does not serve SFO directly, and reaching it means a short BART hop first. SFO's transit page instructs riders to take a Millbrae-bound BART train and board Caltrain at Millbrae station, and to transfer in the other direction onto a Red Line Richmond/SF Airport train at Millbrae. That combination matters mainly if you are heading down the Peninsula towards Palo Alto, Mountain View or San Jose rather than into San Francisco, and Caltrain runs seven days a week with less frequent weekend service.

SamTrans is the San Mateo County bus operator and it is the option most visitors overlook. According to SFO, Route 292 stops directly at the airport terminals, routes EPX and 142 stop at the Rental Car Center reached by the AirTrain Blue Line, and SamTrans operates 24/7 from SFO, with limited late-night service on the ECR Owl and Route 397 running north to San Francisco and Daly City and south to Palo Alto. Terminal stops are on the Arrivals/Baggage Claim level at Terminals 2 and 3, and at Level 1 Courtyard A and curbside by Courtyard G at the International Terminal.

Compare the three public options by the trip they actually suit.

Taxis, ride-hailing and where the cars actually wait

Ride-hailing at SFO does not pick up at the kerb outside arrivals, and walking out of baggage claim expecting a car is the single most common mistake. SFO's ride-hailing page places Lyft and Uber domestic pickups on Level 5 of the Domestic Garage, with a designated core per terminal: Terminal 1 at cores A/B and B, Terminal 2 at C and D, Terminal 3 at E, F and F/G. At the International Terminal, pickups are on the Departures and Ticketing level roadway centre island, zones 12 to 17. Uniformed coordinators staff each zone from 07:00 to 02:00.

Drop-offs work differently from pickups: at the domestic terminals all drop-offs are kerbside on the Departures level, and SFO encourages passengers to request an Arrivals level or garage drop-off to avoid Departures congestion at peak times. Premium products are handled separately again, with Lyft Black, Uber Black and Uber Assist collecting on the Arrivals level at marked doors.

Licensed taxis use their own ranks and are metered, so no fixed airport fare is published and the total depends on traffic and time of day. For a group with luggage arriving in heavy traffic, a taxi trades money for the certainty of a single door-to-door leg.

Late arrivals, when BART has already closed

BART's airport service does not run through the night, and the gap is wider than most arrival schedules assume. BART publishes weekday airport service from 04:58, the first train departing SFO, until midnight; Saturday from 05:47 until midnight; and Sunday from 08:08 until midnight, adding its own warning to make alternative plans if you need to catch an early Sunday morning flight.

If you land after the last train, the realistic options are a taxi, a pre-booked or app-hailed car, or a SamTrans night route. The ECR Owl and Route 397 are the two SamTrans names to look for, running north towards San Francisco and Daly City, and they are slow but they exist at hours BART does not. Waiting inside the terminal for the first train is a legitimate choice on a weekday, when the wait is short; on a Saturday night into Sunday it can mean eight hours.

Clipper in the city: Muni, transfers and what changed

Once you are in San Francisco, the same tap that got you off the plane works on Muni, and the fare rules changed recently in a way that rewards using Clipper rather than a bank card. SFMTA's own account of the Next Generation Clipper rollout confirms that you can now pay a Muni fare by tapping a contactless credit or debit card, Apple Pay or Google Pay at readers on vehicles and at station fare gates, but that only the full adult fare can be paid that way; discounted fares still require a Clipper card.

The transfer discount is the reason to bother with Clipper. SFMTA states that transferring between Bay Area systems within two hours of the first ride of your trip is free or discounted when you pay with Clipper: a Muni fare after a BART trip can be free, and a BART fare after Muni can be reduced by up to USD 2.85. Muni's own two-hour transfer still applies to contactless payments. SFMTA also notes that the Muni Day Pass can now be loaded onto Clipper, and that it covers buses, trains and streetcars but not cable cars.

Before you leave the arrivals hall

Do three things before you walk out. Add Clipper to your phone wallet, or confirm that the contactless card you intend to tap is a physical card you can pull out separately from your wallet. Check today's last train on BART's Trip Planner against your landing time plus immigration and baggage, not against your scheduled arrival. And if you are being collected by an app car, read the pickup zone for your terminal on SFO's page first, because the domestic garage and the international departures island are in different buildings from the door you will be standing at.

What this guide does not cover

Coverage here is limited to arrivals and departures at SFO and travel into San Francisco. It does not cover Oakland or San Jose airports, does not quote taxi or ride-hail fares, which are not published as fixed rates, and does not attempt a full Muni fare table. Fares, service hours and pickup zones at SFO all change, so confirm each on the operator's or airport's own page for your travel date.