UAL1503 is operated by WILMINGTON TRUST CO TRUSTEE between Seattle Tacoma International Airport (KSEA) and Chicago O'Hare International Airport (KORD). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 3h 17m. SkyMeter has observed 94 legs of this flight number via ADS-B.

✈
FLIGHTS
94
last 90 days
⏱
AVG DURATION
3h 17m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/18/2026
first → last seen
🗺
ROUTES / TYPES
12 / 5
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

6
KSEA → KORD
68
avg 3h 44m · Seattle Tacoma → Chicago O'Hare
KIAH → KLGA
5
avg 3h 7m · George Bush Intercontinental Houston → La Guardia
KMSP → KORD
1
avg 1h 20m · Minneapolis-St Paul International/Wold-Chamberlain → Chicago O'Hare
KMCI → KORD
1
avg 1h 3m · Kansas City → Chicago O'Hare
KSEA → KMSP
1
avg 3h 46m · Seattle Tacoma → Minneapolis-St Paul International/Wold-Chamberlain
KSEA → KMCI
1
avg 4h 22m · Seattle Tacoma → Kansas City

Aircraft types

Equipment used on this number

5
B39M BOEING Boeing 737 MAX 9
70
B38M BOEING Boeing 737 MAX 8
13
B739 BOEING Boeing 737-900
9
A21N AIRBUS Airbus A321 Neo
6
A319 AIRBUS Airbus A319
2

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
0
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each flag, not the total event count. See /incidents for individual events.

Recent flights

Newest 30 operations of UAL1503

30
N17336BOEING Boeing 737 MAX 8
→
08/18/2026
7m
No alerts
Replay Analysis
N17314BOEING Boeing 737 MAX 8
→
08/18/2026
2h 54m
No alerts
Replay Analysis
N17314BOEING Boeing 737 MAX 8
→
08/17/2026
6m
No alerts
Replay Analysis
N17314BOEING Boeing 737 MAX 8
→
08/17/2026
3h 1m
No alerts
Replay Analysis
N37354BOEING Boeing 737 MAX 8
→
08/17/2026
3h 7m
No alerts
Replay Analysis
N17264BOEING Boeing 737 MAX 8
→
08/16/2026
2h 55m
No alerts
Replay Analysis
N17264BOEING Boeing 737 MAX 8
→
08/15/2026
10m
No alerts
Replay Analysis
N17264BOEING Boeing 737 MAX 8
→
08/15/2026
3h 6m
No alerts
Replay Analysis
N17264BOEING Boeing 737 MAX 8
→
08/15/2026
3h 6m
No alerts
Replay Analysis
N27276BOEING Boeing 737 MAX 8
→
08/14/2026
2h 55m
No alerts
Replay Analysis
N27276BOEING Boeing 737 MAX 8
→
08/13/2026
3h 0m
No alerts
Replay Analysis
N27276BOEING Boeing 737 MAX 8
→
08/13/2026
5m
No alerts
Replay Analysis
N37353BOEING Boeing 737 MAX 8
→
08/12/2026
3h 21m
No alerts
Replay Analysis
N47446BOEING Boeing 737 MAX 9
→
08/11/2026
3h 34m
No alerts
Replay Analysis
N47457BOEING Boeing 737 MAX 9
→
08/10/2026
1h 19m
No alerts
Replay Analysis
N47457BOEING Boeing 737 MAX 9
→
08/10/2026
20m
No alerts
Replay Analysis
N47457BOEING Boeing 737 MAX 9
→
08/10/2026
43m
No alerts
Replay Analysis
N47457BOEING Boeing 737 MAX 9
→
08/10/2026
44m
No alerts
Replay Analysis
N47457BOEING Boeing 737 MAX 9
→
08/10/2026
3h 46m
↘ Diverted
Replay Analysis
N17454BOEING Boeing 737 MAX 9
→
08/09/2026
3h 40m
No alerts
Replay Analysis
N17454BOEING Boeing 737 MAX 9
→
08/08/2026
3h 36m
No alerts
Replay Analysis
N37449BOEING Boeing 737 MAX 9
→
08/07/2026
3h 32m
No alerts
Replay Analysis
N17420BOEING Boeing 737 MAX 9
→
08/06/2026
3h 38m
No alerts
Replay Analysis
N27463BOEING Boeing 737 MAX 9
→
08/05/2026
3h 46m
No alerts
Replay Analysis
N68821BOEING Boeing 737-900
→
08/04/2026
3h 38m
No alerts
Replay Analysis
N17441BOEING Boeing 737 MAX 9
→
08/03/2026
3h 31m
No alerts
Replay Analysis
N37468BOEING Boeing 737-900
→
08/02/2026
1h 25m
No alerts
Replay Analysis
N17441BOEING Boeing 737 MAX 9
→
08/01/2026
4h 15m
No alerts
Replay Analysis
N37507BOEING Boeing 737 MAX 9
→
07/31/2026
3h 42m
No alerts
Replay Analysis
N77584BOEING Boeing 737 MAX 9
→
07/30/2026
3h 35m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window