Delta Air Lines
DL977Boston to San Francisco
Delta Air Lines flight DL977 flies from Boston (BOS) to San Francisco (SFO), 4,341 km. Over August 2025 to July 2026 it usually arrives about 14 minutes late: 68% of 536 flights arrived within 15 minutes of schedule and 1.9% were cancelled (US Department of Transportation data).
On-time record, last 12 months
68%
on time (within 15 min)
20%
more than 30 min late
1.9%
cancelled
+14 min
average arrival vs schedule
Every operation of DL977, August 2025 to July 2026: 536 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as DL977
- Boston (BOS) to San Francisco (SFO)203 flights
- San Francisco (SFO) to Boston (BOS)199 flights
- Orlando (MCO) to Atlanta (ATL)130 flights
- Atlanta (ATL) to Des Moines (DSM)2 flights
- Des Moines (DSM) to Atlanta (ATL)2 flights
Other flights from Boston to San Francisco
More about Boston (BOS) and San Francisco (SFO).
Embed this on your site
A live badge for travel blogs, forums and trip reports. It updates as new data comes in, and links back here for the full stats.
Dark badge, HTML
<a href="https://tripstow.com/flights/dl977" title="DL977 is on time 68% of the time on TripStow"><img src="https://tripstow.com/badge/flights/dl977.svg" alt="DL977 is on time 68% of the time" width="360" height="88" loading="lazy"></a>
Light badge, HTML
<a href="https://tripstow.com/flights/dl977" title="DL977 is on time 68% of the time on TripStow"><img src="https://tripstow.com/badge/flights/dl977.svg?theme=light" alt="DL977 is on time 68% of the time" width="360" height="88" loading="lazy"></a>Markdown, for forums and README files
[](https://tripstow.com/flights/dl977)Flying soon?
Forward your booking to TripStow and get your trip built for you, with check-in reminders, punctuality for every flight and a map of everywhere you have been.
Start free