UA800United Airlines · BOS → DEN
live · 45m ago
Route confirmed United Airlines

UA800 BostonBOS · 16:45 DenverDEN · 19:36

UA800 by United Airlines flies from Boston (BOS) to Denver (DEN) for the Thu, Nov 12 departure.

Right nowExpected in Denver · On time
19:36

arrival expected at DEN · on schedule

Typical gate push+0 minmedian posted departure
Typical arrival−21 minmedian over 3 operations
Wins back in air~21 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
11-12
+0 gate
11-11
+0 gate · −33 arrival
11-10
+0 gate · −2 arrival
11-09
+0 gate · −21 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
BOSBostonHigh riskBOS delay board →
DENDenverOn-time likelyDEN delay board →
BOS→DENevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
39%Chance of 15+ min delay
2.1%Chance of cancellation
+6 minTypical airport delay in this weather

Conditions at BOS and DEN are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at Boston

Forecast

Fri 13 Nov, local date

High8°Clikely 7°C to 10°C
Low5°Clikely 3°C to 7°C
  • 85% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Denver

Forecast

Fri 13 Nov, local date

High17°Clikely 14°C to 19°C
Low3°Clikely 1°C to 6°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Boston to Denver flights today

same route · United Airlines
UA2814departs 07:15
UA647departs 07:45
UA2348departs 09:20
UA414departs 11:34
UA2297departs 15:05
UA2763departs 20:26

If UA800 is cancelled, these are the other United Airlines nonstop flights from Boston to Denver on the same day, with scheduled departure times in BOS local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How UA800 actually runs

Pro Flight Search has tracked every published board update for UA800 across the BOS and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands ~21 min early. Based on 3 confirmed landings · 3/3 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how UA800 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
11-12BOS 16:45 (+0)DEN 19:36
11-11BOS 16:45 (+0)DEN 19:36 19:03 (−33)
11-10BOS 16:45 (+0)DEN 19:36 19:34 (−2)
11-09BOS 16:45 (+0)DEN 19:39 19:18 (−21)

Aircraft

Recent tails: N47412, N17461, N24526.

Board clocks recorded as BOS and DEN published them.

Planning around UA800? 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: UA800 Boston to Denver on-time performance, measured from the BOS and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/UA800
How we measure this →