AA55American Airlines · LHR → ORD
live · 21m ago
Route confirmed American Airlines

AA55 LondonLHR · 12:15 ChicagoORD · 15:00

AA55 by American Airlines flies from London (LHR) to Chicago (ORD).

Right nowNext departure today Operates daily
12:15

scheduled from LHR

Wins back in air~21 minmedian gate push vs arrival · how planes make up time →

The route today

live boards
LHRLondonHigh riskLHR delay board →
ORDChicagoHigh riskORD delay board →
LHR→ORDevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
47%Chance of 15+ min delay
4.6%Chance of cancellation
+17 minTypical airport delay in this weather

Driven mainly by LHR (London), 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 London

Forecast

Sun 8 Nov, local date

High9°Clikely 8°C to 11°C
Low5°Clikely 2°C to 7°C
  • 49% chance of fog

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 Chicago

Forecast

Sun 8 Nov, local date

High14°Clikely 12°C to 17°C
Low4°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 London to Chicago flights today

same route · American Airlines
AA87departs 12:35
AA91departs 16:30
AA9601departs 18:25

If AA55 is cancelled, these are the other American Airlines nonstop flights from London to Chicago on the same day, with scheduled departure times in LHR 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 AA55 actually runs

Pro Flight Search has tracked every published board update for AA55 across the LHR and ORD boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: left a little late (~14 min) but landed about 7 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how AA55 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
11-07LHR 12:15 12:29 (+14)ORD 15:00 14:53 (−7)
10-24LHR 12:15 12:29 (+14)ORD 15:00 14:53 (−7)

Board clocks recorded as LHR and ORD published them.

Planning around AA55? 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: AA55 London to Chicago on-time performance, measured from the LHR and ORD airport boards.

Canonical URL
https://proflightsearch.com/flight/AA55
How we measure this →