Boston to San Francisco (BOS–SFO) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
BOS–SFO is served by 3 airlines with nonstop service. United Airlines, JetBlue and Delta Air Lines lead the route. The flight covers 2,698 miles in approximately 5h 37m. Beyond nonstop, 166 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AZ, CA, NH, OZ, VA | 59 | 7M8, 7M9, B39M | 6h09-6h46 | Star Alliance | AZ, CA, NH, OZ, VA | |
| B6 JetBlue Also: FI, HA, JL, SQ, TP | 51 | 321, 32S, A21N | 5h59-6h50 | – | FI, HA, JL, SQ, TP | |
| DL Delta Air Lines Also: LY, SK | 20 | 32Q, A21N | 6h22-6h43 | SkyTeam | LY, SK |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach San Francisco from Boston
| Metric | BOS→SFO | BED→SFO | PSM→SFO |
|---|---|---|---|
| Distance from BOS | – | 16 mi | 50 mi |
| Nonstop airlines | 3 | 6 | 1 |
| Weekly flights | 270 | 1 | – |
| Flight time | 5h 37m | 5h 54m | 6h |
| Departure OTP | 99% | – | – |
Travel Essentials
BOS: EDT · SFO: PDT
When it's 6:00 PM in Boston, it's 3:00 PM in San Francisco.
MBTA Silver Line SL1 bus runs from South Station (Red Line, Amtrak) through the Ted Williams Tunnel to all Logan terminals; free from the airport, $2.40 inbound. Journey from South Station takes 15–20 minutes depending on traffic. The Blue Line Aquarium station connects to a free water taxi ($12) across the harbor to Logan; scenic but weather-dependent.Taxis from downtown Boston cost $30–45 with the Ted Williams Tunnel toll included. Ride-hails are comparable. The Sumner and Ted Williams tunnels both serve the airport; check traffic before departing, as both frequently back up. Logan is only 3 miles from downtown but tunnel congestion often extends that to 30+ minutes.
BART from SFO station (free AirTrain from any terminal to the station) to downtown San Francisco takes 30–40 minutes ($10.45 to Embarcadero). Traffic on 101 can make taxis and ride-hails much slower during peak hours; BART skips all of that. BART also reaches Oakland, Berkeley, and Millbrae for Caltrain connections.Ride-hails from SFO use a dedicated garage pickup area; follow signs. Taxis are metered; downtown SF costs $40–60. Caltrain to the Peninsula (Mountain View, Palo Alto, San Jose) requires taking BART to Millbrae station for the transfer. Rental cars are at a consolidated facility accessible by AirTrain.
Coastal fog dominates the climate pattern. The thick marine layer ("Karl the Fog") rolls into SFO from the Pacific regularly in summer (June–September), causing significant low-visibility delays even on days that appear sunny inland. Morning fog burns off by afternoon most days, but persistent IFR conditions can last all day. This is the primary flight disruption risk at SFO.
Temperatures are mild year-round (10–20°C) with little seasonal variation. Winters bring rain (December–March) and occasional atmospheric river events that cause brief but intense flooding on the 101. Summers are cool. Pack a light jacket year-round. Wind off the bay affects small aircraft approach paths.
BOS–SFO Quick Facts
Frequently Asked Questions
Flights from BOS to SFO
Boston Logan International Airport (BOS) and San Francisco International Airport (SFO) are connected by nonstop service from JetBlue, Delta Air Lines and United Airlines. With 270 weekly departures, this is a heavily served route.
BOS to SFO Flight Duration and Schedule
Nonstop flight time from BOS to SFO ranges from 5 hours 37 minutes to 7 hours 0 minutes. The route covers a distance of 2,698 miles (4,341 km). There are approximately 270 weekly flights outbound and 232 return, totaling 502 flights per week in both directions.
Connecting Options and Alternatives
166 one-stop connections are available, with the fastest taking approximately 6 hours via PGA. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Bedford (BED), Portsmouth (PSM) and Nantucket (ACK).