Informational Guide to London Heathrow Airport - LHR - Non Official

AA55 American Airlines - Flight Status

Codeshare Flights
The flight BA1544 from British Airways (BA) is a codeshare flight operated by American Airlines (AA) under the flight number AA55. Check this page for details about flight AA55.

Below, you can find details about American Airlines flight AA55, which currently operates between the airports of London - London Heathrow Airport (Airport Code LHR) and Chicago - Chicago O'Hare International Airport (Airport Code ORD).
This flight data pertains specifically to the flight's details for Saturday, April 11, 2026.

AA55 On Time performance:
83
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Flight Status

AA55 American Airlines to Chicago

En Route - On-time
Flight Status for Saturday April 11, 2026
This flight was also scheduled for Yesterday (April 10, 2026). See it here
This flight is also scheduled for Tomorrow (April 12, 2026). See it here

Airline information

American Airlines
American Airlines
Equipment: Boeing 787-9

Departure

London (LHR)
April 11, 2026
London Heathrow Airport
Departed at:
12:05
Terminal:
3
Gate:
27
Scheduled Departure Time: 12:15

Arrival

Chicago (ORD)
April 11, 2026
Chicago O'Hare International Airport
Estimated Arrival Time:
14:47
Terminal:
5
Gate:
IAB
Scheduled Arrival Time: 14:55
Baggage: CUST
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.airport-london-heathrow.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- AS6991 - Alaska Airlines

- AY3885 - Finnair

- BA1544 - British Airways

- GF6847 - Gulf Air

- IB4189 - Iberia

- UL2028 - SriLankan Airlines

Additional Information

Which is the frequency of flight AA55?
The flight AA55 is scheduled to flight on daily basis.

Which is the distance of flight AA55?
The distance between the two airports is 6346 kilometers.

Which is the flight time of flight AA55?
The scheduled flight time gate to gate is: 08:40 hours.
The real flight time gate to gate on average is: 08:53 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in London: 2026-04-11 16:13:57
Current Time in Chicago: 2026-04-11 10:13:57

Alternative Flights

The following airlines serves the same route between London and Chicago:

American Airlines
- Flight Number: AA87. (On Time performance: 86 - Average Delay: 20 minutes)
- Flight Number: AA91. (On Time performance: 83 - Average Delay: 42 minutes)

British Airways
- Flight Number: BA295. (On Time performance: 73 - Average Delay: 18 minutes)
- Flight Number: BA297. (On Time performance: 71 - Average Delay: 16 minutes)
- Flight Number: BA299. (On Time performance: 50 - Average Delay: 20 minutes)

United Airlines
- Flight Number: UA928. (On Time performance: 88 - Average Delay: 4 minutes)
- Flight Number: UA958. (On Time performance: 92 - Average Delay: 5 minutes)
- Flight Number: UA959. (On Time performance: 87 - Average Delay: 8 minutes)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from March 29, 2026 to April 09, 2026, we have obtained these figures.
Total number of flights: 12
On Time: 10 ( 83 % )
Moderate Delay: 1 ( 8 % )
Significant Delay: 0 ( 0 % )
Major Delay: 1 ( 8 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 12 minutes.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights AA55

Date
Departure
Arrival
Duration
Aircraft
Status
Friday
10 April
12:12
London (LHR)
15:04
Chicago (ORD)
08h 52min
Boeing 787-9
Boeing 787-9
Landed - On-time
Thursday
09 April
12:06
London (LHR)
14:45
Chicago (ORD)
08h 39min
Boeing 787-9
Boeing 787-9
Landed - On-time
Wednesday
08 April
12:12
London (LHR)
14:45
Chicago (ORD)
08h 33min
Boeing 787-9
Boeing 787-9
Landed - On-time
Tuesday
07 April
12:01
London (LHR)
14:20
Chicago (ORD)
08h 19min
Boeing 787-9
Boeing 787-9
Landed - On-time
Monday
06 April
11:59
London (LHR)
14:24
Chicago (ORD)
08h 25min
Boeing 787-9
Boeing 787-9
Landed - On-time
Sunday
05 April
12:06
London (LHR)
14:50
Chicago (ORD)
08h 44min
Boeing 787-9
Boeing 787-9
Landed - On-time
Saturday
04 April
12:10
London (LHR)
15:14
Chicago (ORD)
09h 04min
Boeing 787-9
Boeing 787-9
Landed - On-time
Friday
03 April
12:11
London (LHR)
15:12
Chicago (ORD)
09h 01min
Boeing 787-9
Boeing 787-9
Landed - On-time
Thursday
02 April
11:59
London (LHR)
14:57
Chicago (ORD)
08h 58min
Boeing 787-9
Boeing 787-9
Landed - On-time
Wednesday
01 April
12:02
London (LHR)
15:22
Chicago (ORD)
09h 20min
Boeing 787-9
Boeing 787-9
Landed - Delayed