United Airlines
UA311Boston to Los Angeles
United Airlines flight UA311 flies from Boston (BOS) to Los Angeles (LAX), 4,193 km. Over August 2025 to March 2026 it usually arrives about 2 minutes early: 85% of 309 flights arrived within 15 minutes of schedule and 1.6% were cancelled (US Department of Transportation data).
On-time record, last 12 months
85%
on time (within 15 min)
8%
more than 30 min late
1.6%
cancelled
-2 min
average arrival vs schedule
Every operation of UA311, August 2025 to March 2026: 309 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as UA311
- Boston (BOS) to Los Angeles (LAX)203 flights
- Los Angeles (LAX) to Denver (DEN)92 flights
- Newark Liberty (EWR) to Boston (BOS)14 flights
Other flights from Boston to Los Angeles
More about Boston (BOS) and Los Angeles (LAX).
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/ua311" title="UA311 is on time 85% of the time on TripStow"><img src="https://tripstow.com/badge/flights/ua311.svg" alt="UA311 is on time 85% of the time" width="360" height="88" loading="lazy"></a>
Light badge, HTML
<a href="https://tripstow.com/flights/ua311" title="UA311 is on time 85% of the time on TripStow"><img src="https://tripstow.com/badge/flights/ua311.svg?theme=light" alt="UA311 is on time 85% of the time" width="360" height="88" loading="lazy"></a>Markdown, for forums and README files
[](https://tripstow.com/flights/ua311)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