UAL636 is operated by UNITED AIRLINES INC between Chicago O'Hare International Airport (KORD) and Burlington International Airport (KBTV). The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 1h 53m. SkyMeter has observed 156 legs of this flight number via ADS-B.

✈
FLIGHTS
156
last 90 days
⏱
AVG DURATION
1h 53m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
13 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.6%
1 flagged

Routes flown

By count · last 90 days

7
KORD → KBTV
69
avg 1h 43m · Chicago O'Hare → Burlington
MT44 → KORD
16
avg 2h 57m · Missoula Unit Heliport → Chicago O'Hare
KMSP → KORD
1
avg 1h 28m · Minneapolis-St Paul International/Wold-Chamberlain → Chicago O'Hare
KPWK → KBTV
1
avg 1h 30m · Chicago Executive → Burlington
KORD → KEWR
1
avg 2h 3m · Chicago O'Hare → Newark Liberty
KMSO → KORD
1
avg 3h 3m · Missoula → Chicago O'Hare
KRFD → KORD
1
avg 26m · Chicago Rockford → Chicago O'Hare

Aircraft types

Equipment used on this number

6
B39M BOEING Boeing 737 MAX 9
72
A320 AIRBUS Airbus A320
53
B739 BOEING Boeing 737-900
49
B738 BOEING Boeing 737-800
38
A21N AIRBUS Airbus A321 Neo
3
A319 AIRBUS Airbus A319
1

Safety profile

Flagged flights · last 90 days

Go-arounds
1
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 UAL636

30
N37450BOEING Boeing 737 MAX 9
→
07/19/2026
19m
No alerts
Replay Analysis
N78506BOEING Boeing 737-800
→
07/19/2026
2h 36m
No alerts
Replay Analysis
N76516BOEING Boeing 737-800
→
07/19/2026
2h 16m
No alerts
Replay Analysis
N76516BOEING Boeing 737-800
→
07/18/2026
2h 38m
No alerts
Replay Analysis
N76516BOEING Boeing 737-800
→
07/18/2026
21m
No alerts
Replay Analysis
N37253BOEING Boeing 737-800
→
07/18/2026
1h 28m
No alerts
Replay Analysis
N37253BOEING Boeing 737-800
→
07/17/2026
2h 57m
No alerts
Replay Analysis
N37253BOEING Boeing 737-800
→
07/17/2026
1h 28m
No alerts
Replay Analysis
N66893BOEING Boeing 737-900
→
07/17/2026
1h 35m
No alerts
Replay Analysis
N66893BOEING Boeing 737-900
→
07/16/2026
9m
No alerts
Replay Analysis
N37464BOEING Boeing 737-900
→
07/16/2026
3h 10m
No alerts
Replay Analysis
N77544BOEING Boeing 737 MAX 9
→
07/16/2026
1h 42m
No alerts
Replay Analysis
N77585BOEING Boeing 737 MAX 9
→
07/15/2026
1h 32m
No alerts
Replay Analysis
N77585BOEING Boeing 737 MAX 9
→
07/14/2026
5m
No alerts
Replay Analysis
N77585BOEING Boeing 737 MAX 9
→
07/14/2026
1h 38m
No alerts
Replay Analysis
N68823BOEING Boeing 737-900
→
07/14/2026
2h 46m
No alerts
Replay Analysis
N17444BOEING Boeing 737 MAX 9
→
07/14/2026
1h 40m
No alerts
Replay Analysis
N17444BOEING Boeing 737 MAX 9
→
07/13/2026
24m
No alerts
Replay Analysis
N17444BOEING Boeing 737 MAX 9
→
07/13/2026
2h 4m
No alerts
Replay Analysis
N73276BOEING Boeing 737-800
→
07/13/2026
2h 41m
No alerts
Replay Analysis
N17461BOEING Boeing 737 MAX 9
→
07/13/2026
1h 31m
No alerts
Replay Analysis
N17461BOEING Boeing 737 MAX 9
→
07/12/2026
10m
No alerts
Replay Analysis
N17461BOEING Boeing 737 MAX 9
→
07/12/2026
5m
No alerts
Replay Analysis
N17461BOEING Boeing 737 MAX 9
→
07/12/2026
2h 5m
No alerts
Replay Analysis
N11206BOEING Boeing 737-800
→
07/12/2026
2h 55m
No alerts
Replay Analysis
N47569BOEING Boeing 737 MAX 9
→
07/12/2026
1h 49m
No alerts
Replay Analysis
N37273BOEING Boeing 737-800
→
07/11/2026
3h 1m
↻ Go-around
Replay Analysis
N17403BOEING Boeing 737 MAX 9
→
07/11/2026
1h 37m
No alerts
Replay Analysis
N17403BOEING Boeing 737 MAX 9
→
07/10/2026
1h 56m
No alerts
Replay Analysis
N17403BOEING Boeing 737 MAX 9
→
07/10/2026
19m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window