UA3540United Airlines · IAD → PIT
updated 3h ago
Route confirmed United Airlines

UA3540 WashingtonIAD · 22:22 PittsburghPIT · 23:30

UA3540 by United Airlines flies from Washington (IAD) to Pittsburgh (PIT) for the Wed, Nov 11 departure.

Right nowExpected · today · as of 22:18
22:57

departs IAD · 35 min late

⚖ UA3540 typically leaves +10 and lands −21. The air wins minutes back.
Typical gate push+10 minmedian posted departure
Typical arrival−21 minmedian over 11 operations
Wins back in air~31 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 12tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-10
+9 gate · −27 arrival
11-09
+26 gate · −8 arrival
11-08
+20 gate · −10 arrival
11-07
+9 gate · −25 arrival
11-06
+24 gate · −9 arrival
11-05
+20 gate · −17 arrival
11-04
+10 gate · −27 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 −21 min · 0 cancelled · 12 operations tracked

The route today

live boards
IADWashingtonOn-time likelyIAD delay board →
PITPittsburghOn-time likelyPIT delay board →
IAD→PITevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
34%Chance of 15+ min delay
2.4%Chance of cancellation
+5 minTypical airport delay in this weather

Conditions at IAD and PIT 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 Washington

Forecast

Fri 13 Nov, local date

High10°Clikely 8°C to 12°C
Low4°Clikely 2°C to 7°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 Pittsburgh

Forecast

Fri 13 Nov, local date

High6°Clikely 5°C to 8°C
Low1°Clikely −1°C to 3°C
  • 38% chance of snow

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 Washington to Pittsburgh flights today

same route · United Airlines
UA1910departs 08:25
UA4301departs 08:30
UA6119departs 08:30
UA3640departs 08:31
UA4556departs 08:31
UA212departs 13:09

If UA3540 is cancelled, these are the other United Airlines nonstop flights from Washington to Pittsburgh on the same day, with scheduled departure times in IAD 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 UA3540 actually runs

Pro Flight Search has tracked every published board update for UA3540 across the IAD and PIT boards: schedule changes, gate pushes and actual clocks. Usually lands ~5 min early. Based on 11 confirmed landings · 11/11 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 UA3540 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
11-10IAD 22:22 22:31 (+9)PIT 23:30 23:03 (−27)
11-09IAD 22:22 22:48 (+26)PIT 23:30 23:22 (−8)
11-08IAD 22:22 22:42 (+20)PIT 23:30 23:20 (−10)
11-07IAD 22:22 22:31 (+9)PIT 23:30 23:05 (−25)
11-06IAD 22:22 22:46 (+24)PIT 23:30 23:21 (−9)
11-05IAD 22:22 22:42 (+20)PIT 23:30 23:13 (−17)
11-04IAD 22:22 22:32 (+10)PIT 23:30 23:03 (−27)
11-03IAD 22:22 22:27 (+5)PIT 23:30 22:59 (−31)
11-02IAD 22:22 22:34 (+12)PIT 23:30 23:07 (−23)
11-01IAD 22:22 22:32 (+10)PIT 23:04 (+0)
10-31IAD 22:22 22:24 (+2)PIT 23:30 23:09 (−21)
10-30IAD 22:22 22:28 (+6)PIT

Aircraft

Recent tails: N754YX, N772YX, N733YX, N726YX.

Board clocks recorded as IAD and PIT published them.

Planning around UA3540? 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: UA3540 Washington to Pittsburgh on-time performance, measured from the IAD and PIT airport boards.

Canonical URL
https://proflightsearch.com/flight/UA3540
How we measure this →