UA3515United Airlines · IAD → YYZ
updated 1h ago
Route confirmed United Airlines

UA3515 WashingtonIAD · 22:10 TorontoYYZ · 23:52

UA3515 by United Airlines flies from Washington (IAD) to Toronto (YYZ).

Right nowNext departure today Operates daily
22:10

scheduled from IAD

⚖ UA3515 typically leaves +15 and lands −10. The air wins minutes back.
Typical gate push+15 minmedian posted departure
Typical arrival−10 minmedian over 12 operations
Wins back in air~25 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 13tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+31+62+93 min
11-12
+29 gate · −10 arrival
11-11
+12 gate · −10 arrival
11-10
+11 gate · −10 arrival
11-09
+12 gate · −10 arrival
11-08
+34 gate · −10 arrival
11-07
+15 gate · −10 arrival
11-06
+93 gate · −10 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 −10 min · 0 cancelled · 13 operations tracked

The route today

live boards
IADWashingtonOn-time likelyIAD delay board →
YYZTorontoOn-time likelyYYZ delay board →
IAD→YYZevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
48%Chance of 15+ min delay
7.9%Chance of cancellation
+32 minTypical airport delay in this weather

Driven mainly by IAD (Washington), 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 Washington

Forecast

Fri 13 Nov, local date

High10°Clikely 8°C to 12°C
Low5°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 Toronto

Forecast

Fri 13 Nov, local date

High5°Clikely 4°C to 6°C
Low1°Clikely 0°C to 3°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 Washington to Toronto flights today

same route · United Airlines
UA3490departs 12:39
UA3453departs 17:15

If UA3515 is cancelled, these are the other United Airlines nonstop flights from Washington to Toronto 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 UA3515 actually runs

Pro Flight Search has tracked every published board update for UA3515 across the IAD and YYZ boards: schedule changes, gate pushes and actual clocks. Usually lands ~14 min early. Based on 12 confirmed landings · 10/12 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 UA3515 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
11-12IAD 22:10 22:39 (+29)YYZ 23:52 23:42 (−10)
11-11IAD 22:10 22:22 (+12)YYZ 23:52 23:42 (−10)
11-10IAD 22:10 22:21 (+11)YYZ 23:52 23:42 (−10)
11-09IAD 22:10 22:22 (+12)YYZ 23:52 23:42 (−10)
11-08IAD 22:10 22:44 (+34)YYZ 23:52 23:42 (−10)
11-07IAD 22:10 22:25 (+15)YYZ 23:52 23:42 (−10)
11-06IAD 22:10 23:43 (+93)YYZ 23:52 23:42 (−10)
11-05IAD 22:10 22:39 (+29)YYZ 23:52 23:42 (−10)
11-04IAD 22:10 22:24 (+14)YYZ 23:52 23:42 (−10)
11-03IAD 22:10 22:08 (−2)YYZ 23:52 23:42 (−10)
11-02IAD 22:10 22:19 (+9)YYZ 23:52 23:42 (−10)
11-01IAD 22:10 22:58 (+48)YYZ 23:52 23:42 (−10)
10-31IAD 22:10 22:28 (+18)YYZ

Aircraft

Recent tails: N778YX, N761YX, N774YX, N754YX.

Board clocks recorded as IAD and YYZ published them.

Planning around UA3515? 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: UA3515 Washington to Toronto on-time performance, measured from the IAD and YYZ airport boards.

Canonical URL
https://proflightsearch.com/flight/UA3515
How we measure this →