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 737-900. Typical block time is 1h 36m. SkyMeter has observed 54 legs of this flight number via ADS-B.

✈
FLIGHTS
54
last 90 days
⏱
AVG DURATION
1h 36m
tracked time
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
12 / 5
city pairs · airframes
⚠
INCIDENT RATE
1.9%
1 flagged

Routes flown

By count · last 90 days

8
KORD → KBTV
23
avg 1h 40m · Chicago O'Hare → Burlington
KORD → KEWR
2
avg 1h 58m · Chicago O'Hare → Newark Liberty
KPWK → KBTV
1
avg 1h 30m · Chicago Executive → Burlington
7IL4 → KBTV
1
avg 1h 36m · Northwest Community Hospital Heliport → Burlington
IL79 → KBTV
1
avg 1h 38m · Presence Resurrection Medical Center Heliport → Burlington
90MT → KORD
1
avg 3h 3m · Aero Heliport → Chicago O'Hare
KRFD → KORD
1
avg 26m · Chicago Rockford → Chicago O'Hare
MT44 → KORD
1
avg 2h 49m · Missoula Unit Heliport → Chicago O'Hare

Aircraft types

Equipment used on this number

5
B739 BOEING Boeing 737-900
30
A320 AIRBUS Airbus A320
22
B39M BOEING Boeing 737 MAX 9
8
B738 BOEING Boeing 737-800
7
A21N AIRBUS Airbus A321 Neo
4

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
1
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
N17593BOEING Boeing 737 MAX 9
→
06/03/2026
12m
No alerts
Replay Analysis
N436UAAIRBUS Airbus A320
→
06/03/2026
2h 45m
No alerts
Replay Analysis
N77576BOEING Boeing 737 MAX 9
→
06/03/2026
1h 43m
No alerts
Replay Analysis
N440UAAIRBUS Airbus A320
→
06/02/2026
2h 58m
No alerts
Replay Analysis
N37534BOEING Boeing 737 MAX 9
→
06/02/2026
1h 25m
No alerts
Replay Analysis
N37534BOEING Boeing 737 MAX 9
→
06/01/2026
8m
No alerts
Replay Analysis
N37534BOEING Boeing 737 MAX 9
→
06/01/2026
1h 34m
No alerts
Replay Analysis
N440UAAIRBUS Airbus A320
→
06/01/2026
2h 48m
No alerts
Replay Analysis
N18220BOEING Boeing 737-800
→
05/31/2026
3h 2m
No alerts
Replay Analysis
N14544AIRBUS Airbus A321 Neo
→
05/31/2026
1h 53m
No alerts
Replay Analysis
N27520BOEING Boeing 737 MAX 9
→
05/29/2026
19m
No alerts
Replay Analysis
N24212BOEING Boeing 737-800
→
05/29/2026
3h 5m
No alerts
Replay Analysis
N37456BOEING Boeing 737-900
→
05/29/2026
1h 52m
No alerts
Replay Analysis
N437UAAIRBUS Airbus A320
→
05/28/2026
3h 10m
No alerts
Replay Analysis
N37419BOEING Boeing 737-900
→
05/28/2026
1h 38m
No alerts
Replay Analysis
N496UAAIRBUS Airbus A320
→
05/27/2026
3h 2m
No alerts
Replay Analysis
N76265BOEING Boeing 737-800
→
05/26/2026
25m
No alerts
Replay Analysis
N76265BOEING Boeing 737-800
→
05/26/2026
3h 7m
No alerts
Replay Analysis
N37456BOEING Boeing 737-900
→
05/25/2026
1h 46m
No alerts
Replay Analysis
N76503BOEING Boeing 737-800
→
05/24/2026
3h 0m
No alerts
Replay Analysis
N14548AIRBUS Airbus A321 Neo
→
05/24/2026
1h 44m
No alerts
Replay Analysis
N14548AIRBUS Airbus A321 Neo
→
05/23/2026
18m
No alerts
Replay Analysis
N14548AIRBUS Airbus A321 Neo
→
05/23/2026
2h 2m
No alerts
Replay Analysis
N451UAAIRBUS Airbus A320
→
05/23/2026
2h 41m
No alerts
Replay Analysis
N37542BOEING Boeing 737 MAX 9
→
05/23/2026
1h 18m
No alerts
Replay Analysis
N37542BOEING Boeing 737 MAX 9
→
05/22/2026
21m
No alerts
Replay Analysis
N76532BOEING Boeing 737-800
→
05/21/2026
2h 45m
No alerts
Replay Analysis
N67812BOEING Boeing 737-900
→
05/21/2026
1h 33m
No alerts
Replay Analysis
N66828BOEING Boeing 737-900
→
05/20/2026
1h 42m
No alerts
Replay Analysis
N67815BOEING Boeing 737-900
→
05/18/2026
1h 26m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window