UA340United Airlines · ATL → DEN
live · 33m ago
Route confirmed United Airlines

UA340 AtlantaATL · 08:45 DenverDEN · 10:08

UA340 by United Airlines flies from Atlanta (ATL) to Denver (DEN).

Right nowNext departure today Operates daily
13:32

scheduled from ATL

Typical gate push+8 minmedian posted departure
Typical arrival−23 minmedian over 7 operations
Wins back in air~31 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-02
+8 gate · −6 arrival
10-24
+7 gate · −23 arrival
10-23
+10 gate · −14 arrival
10-22
+12 gate · −24 arrival
10-21
+6 gate · −25 arrival
10-20
−25 arrival
10-19
+8 gate · −6 arrival

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

The last 30 days

arrival outcome per operation

median arrival −23 min · 0 cancelled · 7 operations tracked

The route today

live boards
ATLAtlantaOn-time likelyATL delay board →
DENDenverHigh riskDEN delay board →
ATL→DENevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
38%Chance of 15+ min delay
1.5%Chance of cancellation
+13 minTypical airport delay in this weather

Driven mainly by DEN (Denver), currently flying LIFR (low instrument). 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 ATL

Forecast

Tue 3 Nov, local date

High21°Clikely 19°C to 23°C
Low15°Clikely 14°C to 17°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.

Tomorrow at DEN

Forecast

Tue 3 Nov, local date

High14°Clikely 11°C to 17°C
Low3°Clikely 1°C to 5°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 Atlanta to Denver flights today

same route · United Airlines
UA1663departs 07:15
UA1254departs 11:14
UA609departs 16:39

If UA340 is cancelled, these are the other United Airlines nonstop flights from Atlanta to Denver on the same day, with scheduled departure times in ATL 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 UA340 actually runs

Pro Flight Search has tracked every published board update for UA340 across the ATL and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands ~23 min early. Based on 7 confirmed landings · 7/7 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 UA340 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
11-02ATL 08:45 08:53 (+8)DEN 10:08 10:02 (−6)
10-24ATL 08:45 08:52 (+7)DEN 10:08 09:45 (−23)
10-23ATL 08:45 08:55 (+10)DEN 10:08 09:54 (−14)
10-22ATL 08:45 08:57 (+12)DEN 10:08 09:44 (−24)
10-21ATL 08:45 08:51 (+6)DEN 10:08 09:43 (−25)
10-20ATL 08:45DEN 10:08 09:43 (−25)
10-19ATL 08:45 08:53 (+8)DEN 10:08 10:02 (−6)

Aircraft

Recent tails: N73256, N37372, N37290, N14219.

Board clocks recorded as ATL and DEN published them.

Planning around UA340? 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: UA340 Atlanta to Denver on-time performance, measured from the ATL and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/UA340
How we measure this →