(UA) United Airlines 503 Flight Details
On time | Departed
Departure
BOS
Boston Logan International Airport, MA, US
Flight Gate Times
18-Mar-2026
Scheduled
11:02
EDT
Actual
10:57
EDT
Total Departure Delay: -
Flight Runway Times
18-Mar-2026
Scheduled
11:17
EDT
Actual
11:15
EDT
Runway Delay: -
Terminal
B
Gate
B23
Craft Type
Boeing 737MAX 9 Passenger
7M9
Flight Time
Scheduled
3h 5m
Arrival
ORD
Chicago O'Hare International Airport, IL, US
Flight Gate Times
18-Mar-2026
Scheduled
13:07
CDT
Estimated
12:44
CDT
Total Arrival Delay: -
Flight Runway Times
18-Mar-2026
Scheduled
12:28
CDT
Estimated
12:39
CDT
Runway Delay: 11 mins
Terminal
3
Gate
G6
Baggage Claim
5
Tail Number
N37504
Flight Time
Estimated
2h 47m
Flight Notes
Also marketed as (NH) ANA 7787, (NZ) Air New Zealand 2098
Event Timeline
Date
Event
Data Updated
18 Mar
15:20
11:20
10:20
Time Adjustment
Estimated Runway Arrival changed from Mar-18-2026 12:23 PM to Mar-18-2026 12:39 PM
Estimated Gate Arrival changed from Mar-18-2026 12:41 PM to Mar-18-2026 12:44 PM
18 Mar
15:17
11:17
10:17
Time Adjustment
Estimated Runway Arrival changed from Mar-18-2026 12:26 PM to Mar-18-2026 12:23 PM
18 Mar
15:16
11:16
10:16
Time Adjustment
Actual Runway Departure changed to Mar-18-2026 11:15 AM
18 Mar
15:16
11:16
10:16
Time Adjustment
Estimated Runway Departure changed from Mar-18-2026 11:17 AM to Mar-18-2026 11:15 AM
Estimated Runway Arrival changed from Mar-18-2026 12:39 PM to Mar-18-2026 12:26 PM
18 Mar
15:13
11:13
10:13
Time Adjustment
Estimated Runway Arrival changed from Mar-18-2026 12:23 PM to Mar-18-2026 12:39 PM
18 Mar
15:02
11:02
10:02
Time Adjustment
Estimated Gate Arrival changed from Mar-18-2026 1:07 PM to Mar-18-2026 12:41 PM
18 Mar
14:59
10:59
09:59
Status Active
Estimated Gate Departure changed from Mar-18-2026 11:02 AM to Mar-18-2026 10:57 AM
Actual Gate Departure changed to Mar-18-2026 10:57 AM
Status changed from Scheduled to Active
18 Mar
14:58
10:58
09:58
Time Adjustment
Estimated Runway Arrival changed from Mar-18-2026 12:28 PM to Mar-18-2026 12:23 PM
18 Mar
12:13
08:13
07:13
Time Adjustment
Estimated Runway Arrival changed to Mar-18-2026 12:28 PM
18 Mar
12:13
08:13
07:13
Time Adjustment
Estimated Runway Departure changed to Mar-18-2026 11:17 AM
Scheduled Runway Arrival changed from Mar-18-2026 12:49 PM to Mar-18-2026 12:28 PM
18 Mar
10:33
06:33
05:33
Gate Adjustment
Arrival Terminal changed to 3
18 Mar
10:27
06:27
05:27
Gate Adjustment
Arrival Gate changed from C9 to G6
Arrival Terminal changed from 1
17 Mar
15:11
11:11
10:11
Time Adjustment
Scheduled Runway Departure changed from Mar-18-2026 11:10 AM to Mar-18-2026 11:17 AM
Scheduled Runway Arrival changed from Mar-18-2026 12:22 PM to Mar-18-2026 12:49 PM
17 Mar
15:06
11:06
10:06
Time Adjustment
Scheduled Runway Departure changed to Mar-18-2026 11:10 AM
Scheduled Runway Arrival changed to Mar-18-2026 12:22 PM
17 Mar
13:57
09:57
08:57
Gate Adjustment
Departure Gate changed to B23
17 Mar
00:27
20:27
19:27
Gate Adjustment
Arrival Gate changed from B6 to C9
17 Mar
00:15
20:15
19:15
Gate Adjustment
Arrival Gate changed to B6
Baggage changed to 5
16 Mar
17:39
13:39
12:39
Equipment Adjustment
Tail Number changed to N37504
Actual Equipment changed to 7M9
16 Mar
17:38
13:38
12:38
Time Adjustment
Estimated Gate Departure changed to Mar-18-2026 11:02 AM
Estimated Gate Arrival changed to Mar-18-2026 1:07 PM
15 Mar
18:46
14:46
13:46
Record Created
15 Mar
18:46
14:46
13:46
Time Adjustment
Scheduled Gate Departure changed to Mar-18-2026 11:02 AM
Scheduled Gate Arrival changed to Mar-18-2026 1:07 PM
Departure Terminal changed to B
Arrival Terminal changed to 1
Scheduled Equipment changed to 7M9