BOS → SFOBoston to San Francisco

live

Direct flights from Boston (BOS) to San Francisco (SFO): 123 nonstop departures observed each week across 19 airlines. 100% of the last 8 operated flights arrived within 15 minutes of schedule. The median arrival is 18 minutes early. No cancellations were recorded across the 8 tracked flights. The nonstop covers 4,341 km, an estimated 6 hours 4 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and San Francisco. Updated 18 October 2026 at 16:57 UTC.

Today, BOS → SFO

Sun 18 Oct · local times
  1. 07:00 B6633JetBlue Left 07:00 SFO est. 10:00In the air · sched 10:29
  2. 07:45 DL977Delta Left 07:53 +8 SFO est. 11:01In the air · sched 11:25
  3. 09:55 B61633JetBlue Left 09:55 SFO est. 13:15In the air · sched 13:26
  4. 10:05 DL860Delta Left 10:15 +10 SFO est. 13:37In the air · sched 13:43
  5. 11:30 UA1074United Left 11:30 SFO est. 14:34In the air · sched 14:53
  6. 13:55 UA1367United On scheduleGate B24 · TB SFO 17:18scheduled
  7. 16:15 UA754United On scheduleGate B24 · TB SFO 19:40scheduled
  8. 16:30 B6733JetBlue On scheduleGate C24 · TC SFO 20:05scheduled
  9. 17:00 DL1655Delta On scheduleGate A15 · TA SFO est. 20:26sched 20:39
  10. 18:09 B6933JetBlue On scheduleGate C29 · TC ·
  11. 18:17 UA2400United On scheduleGate B24 · TB ·
  12. 20:51 DL2919Delta On scheduleGate A16 · TA ·
  13. 21:29 B6413JetBlue On scheduleGate C23B · TC ·
  14. · EY8330Etihad On schedule SFO 20:05scheduled
  15. · KE3255Korean Air On schedule SFO est. 11:01sched 11:25
  16. · LY4227El Al Airlines On schedule SFO est. 13:37sched 13:43
  17. · LY4578El Al Airlines On schedule SFO est. 11:01sched 11:25
  18. · NH7003ANA (All Nippon Airways) On schedule SFO est. 10:36sched 11:15
  19. · NZ9019Air New Zealand On schedule SFO est. 12:17sched 12:43
  20. · NZ9020Air New Zealand Departed Landed 09:12 −18
  21. · NZ9021Air New Zealand On schedule SFO est. 14:34sched 14:53
  22. · NZ9023Air New Zealand On schedule SFO est. 10:36sched 11:15
  23. · NZ9025Air New Zealand On schedule SFO 19:40scheduled
  24. · NZ9026Air New Zealand On schedule SFO 17:18scheduled
  25. · TP4401TAP Air Portugal On schedule SFO est. 10:00sched 10:29
  26. · UA2317United On schedule SFO est. 10:36sched 11:15
  27. · UA2441United Departed Landed 09:12 −18
  28. · UA726United On schedule SFO est. 12:17sched 12:43
  29. · VA8310Virgin Australia On schedule SFO est. 10:36sched 11:15
  30. · VA8311Virgin Australia Departed Landed 09:12 −18
  31. · VA8313Virgin Australia On schedule SFO est. 14:34sched 14:53
  32. · VA8314Virgin Australia On schedule SFO est. 12:17sched 12:43
  33. · VA8520Virgin Australia On schedule SFO 19:40scheduled
  34. · VA8580Virgin Australia On schedule SFO 17:18scheduled
  35. · WS7983WestJet On schedule SFO est. 11:01sched 11:25

Checked BOS board 12:57 · SFO board 09:30

BOS Boston smooth · +0
SFO San Francisco smooth · +0
4,341 km · ~6h 04m est.
dep bank 00:59–21:48123x weekly
Runs reliable · 19 airlines · 123x weekly · nonstop
100% on time

of the last 8 operated BOS → SFO flights arrived within 15 minutes

Median arrival delay is −18 min. 0 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−18 minacross the last 8 operated legs
Flight time~6h 04mestimated from route distance
Weekly departures123x19 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Air ChinaAir New ZealandANA (All Nippon Airways)Asiana Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Air ChinaCA

Flights CA7222 11:15 We Sa

Air New ZealandNZ

Flights NZ9020 09:30 Mo Th Fr Su · NZ9023 11:15 daily · NZ9019 12:43 daily · NZ9021 14:53 daily

ANA (All Nippon Airways)NH

Flights NH7003 11:15 daily

Asiana AirlinesOZ

Flights OZ9530 21:48 daily

Delta Air LinesDL

Flights DL977 07:45 daily · DL860 10:05 daily · DL1655 varies daily · DL2919 20:51 Mo We Th Fr Sa Su

El Al AirlinesLY

Flights LY4578 varies Mo We Th Su · LY4227 varies Mo We Th Su

Etihad AirwaysEY

Flights EY8004 00:59 Sa · EY8330 20:05 Mo Tu We Th Fr Su · EY8001 20:35 Sa · EY8038 21:44 Tu We Th Fr

IcelandairFI

Flights FI7897 00:59 Tu We Th Fr Sa Su · FI7899 10:29 Mo Tu We Th Sa

ITA AirwaysAZ

Flights AZ4406 19:40 Mo We Th Fr Su · AZ4385 21:48 daily

Japan AirlinesJL

Flights JL5938 00:59 Tu We Th Fr Sa Su

JetBlue AirwaysB6

Flights B6633 07:00 daily · B61633 09:55 daily · B6733 16:30 daily · B6933 18:09 Mo Tu We Th Fr Su

Korean AirKE

Flights KE3255 11:25 daily

LATAM ChileLA

Flights LA6139 varies daily

Scandinavian Airlines (SAS)SK

Flights SK3585 varies daily

Singapore AirlinesSQ

Flights SQ1539 00:59 Tu We Th Fr Sa Su

TAP Air PortugalTP

Flights TP4399 00:59 Tu We Th Fr Sa Su · TP4401 10:29 daily

United AirlinesUA

Flights UA2441 06:00 Mo Th Fr Su · UA726 09:20 daily · UA1074 11:30 daily · UA1367 13:55 daily

Virgin AustraliaVA

Flights VA8311 09:30 Mo Th Fr Su · VA8310 11:15 daily · VA8314 12:43 daily · VA8313 14:53 daily

WestJetWS

Flights WS7983 11:25 daily · WS7646 13:43 We

History

operated legs · board outcomes
10-18B61633dep +0 → arr−11
10-18B6633dep +0 → arr−29
10-18DL860dep +10 → arr−6
10-18DL977dep +8 → arr−24
10-18NZ9020arrived−18
10-18UA1074dep +0 → arr−19
10-18UA2441arrived−18
10-18VA8311arrived−18

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
BOSBoston +0 min smooth 🌤 few clouds · SSW 4 kt Full BOS delay board →
SFOSan Francisco +0 min smooth 🌤 few clouds · NW 8 kt Full SFO delay board →

Weather lens

Current conditions put the pressure at SFO: 53% odds of a 15+ minute delay and around +16 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Boston to San Francisco route actually runs

Pro Flight Search records official board updates for nonstop BOS to SFO flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Boston (BOS) to San Francisco (SFO) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/BOS-SFO
How we measure this →

BOS to SFO questions

Is BOS–SFO running on time right now?

Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on BOS–SFO?

Operators schedule morning departures around 06:00 and evening departures around 18:09 from BOS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SFO delay card to confirm conditions when you'd arrive.

How long is the flight from BOS to SFO?

Great-circle distance is 4,341 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 336–402 min gate-to-gate on this route.

How often does BOS–SFO fly?

19 carriers operate this route, around 299 flights a week between them. Compare carrier days and times in the airline list above.