(UA) United Airlines 503 Flight Details
On time | Departed
Departure
BOS
Boston Logan International Airport, MA, US
Flight Gate Times
21-Mar-2026
Scheduled
11:02
EDT
Actual
10:57
EDT
Total Departure Delay: -
Flight Runway Times
21-Mar-2026
Scheduled
11:17
EDT
Actual
11:09
EDT
Runway Delay: -
Terminal
B
Gate
B25
Craft Type
Boeing 737MAX 9 Passenger
7M9
Flight Time
Scheduled
3h 5m
Arrival
ORD
Chicago O'Hare International Airport, IL, US
Flight Gate Times
21-Mar-2026
Scheduled
13:07
CDT
Estimated
12:49
CDT
Total Arrival Delay: -
Flight Runway Times
21-Mar-2026
Scheduled
12:39
CDT
Estimated
12:34
CDT
Runway Delay: -
Terminal
1
Gate
B7
Baggage Claim
5
Tail Number
N37530
Flight Time
Estimated
2h 52m
Flight Notes
Also marketed as (NH) ANA 7787, (NZ) Air New Zealand 2098
Event Timeline
Date
Event
Data Updated
21 Mar
15:14
11:14
10:14
Time Adjustment
Estimated Runway Arrival changed from Mar-21-2026 12:16 PM to Mar-21-2026 12:34 PM
Estimated Gate Arrival changed from Mar-21-2026 12:52 PM to Mar-21-2026 12:49 PM
21 Mar
15:11
11:11
10:11
Time Adjustment
Estimated Runway Arrival changed from Mar-21-2026 12:31 PM to Mar-21-2026 12:16 PM
21 Mar
15:10
11:10
10:10
Time Adjustment
Estimated Runway Arrival changed from Mar-21-2026 12:21 PM to Mar-21-2026 12:31 PM
21 Mar
15:10
11:10
10:10
Time Adjustment
Actual Runway Departure changed to Mar-21-2026 11:09 AM
21 Mar
15:10
11:10
10:10
Time Adjustment
Estimated Runway Departure changed from Mar-21-2026 11:17 AM to Mar-21-2026 11:09 AM
Estimated Runway Arrival changed from Mar-21-2026 12:34 PM to Mar-21-2026 12:21 PM
21 Mar
15:02
11:02
10:02
Time Adjustment
Estimated Gate Departure changed from Mar-21-2026 10:58 AM to Mar-21-2026 10:57 AM
Actual Gate Departure changed from Mar-21-2026 10:58 AM to Mar-21-2026 10:57 AM
21 Mar
15:01
11:01
10:01
Time Adjustment
Estimated Gate Departure changed from Mar-21-2026 10:57 AM to Mar-21-2026 10:58 AM
Actual Gate Departure changed from Mar-21-2026 10:57 AM to Mar-21-2026 10:58 AM
21 Mar
15:00
11:00
10:00
Status Active
Estimated Gate Departure changed from Mar-21-2026 11:02 AM to Mar-21-2026 10:57 AM
Actual Gate Departure changed to Mar-21-2026 10:57 AM
Status changed from Scheduled to Active
21 Mar
14:58
10:58
09:58
Time Adjustment
Estimated Runway Arrival changed from Mar-21-2026 12:39 PM to Mar-21-2026 12:34 PM
Estimated Gate Arrival changed from Mar-21-2026 1:07 PM to Mar-21-2026 12:52 PM
21 Mar
11:38
07:38
06:38
Time Adjustment
Estimated Runway Arrival changed to Mar-21-2026 12:39 PM
21 Mar
11:38
07:38
06:38
Time Adjustment
Estimated Runway Departure changed to Mar-21-2026 11:17 AM
Scheduled Runway Arrival changed from Mar-21-2026 12:49 PM to Mar-21-2026 12:39 PM
21 Mar
07:02
03:02
02:02
Equipment Adjustment
Tail Number changed from N97424 to N37530
20 Mar
20:02
16:02
15:02
Gate Adjustment
Departure Gate changed from B23 to B25
20 Mar
15:11
11:11
10:11
Time Adjustment
Scheduled Runway Departure changed from Mar-21-2026 11:09 AM to Mar-21-2026 11:17 AM
Scheduled Runway Arrival changed from Mar-21-2026 12:22 PM to Mar-21-2026 12:49 PM
20 Mar
15:06
11:06
10:06
Time Adjustment
Scheduled Runway Departure changed to Mar-21-2026 11:09 AM
Scheduled Runway Arrival changed to Mar-21-2026 12:22 PM
20 Mar
14:02
10:02
09:02
Gate Adjustment
Departure Gate changed to B23
20 Mar
00:20
20:20
19:20
Gate Adjustment
Arrival Gate changed to B7
Baggage changed to 5
19 Mar
09:50
05:50
04:50
Equipment Adjustment
Tail Number changed to N97424
Actual Equipment changed to 7M9
19 Mar
09:50
05:50
04:50
Time Adjustment
Estimated Gate Departure changed to Mar-21-2026 11:02 AM
Estimated Gate Arrival changed to Mar-21-2026 1:07 PM
18 Mar
18:45
14:45
13:45
Record Created
18 Mar
18:45
14:45
13:45
Time Adjustment
Scheduled Gate Departure changed to Mar-21-2026 11:02 AM
Scheduled Gate Arrival changed to Mar-21-2026 1:07 PM
Departure Terminal changed to B
Arrival Terminal changed to 1
Scheduled Equipment changed to 7M9