Flight Status & Tracker

UAL1640

UNITED AIRLINES INC · FAI → ORD · Last tracked Sep 24, 2026

UAL1640 is a flight number operated by UNITED AIRLINES INC between Fairbanks International Airport (PAFA) and Chicago O'Hare International Airport (KORD). SkyMeter last tracked UAL1640 on September 24, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 5h 7m. SkyMeter has observed 61 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
61
last 90 days
⏱
AVG DURATION
5h 7m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/24/2026
first → last seen
🗺
ROUTES / TYPES
8 / 1
city pairs · airframes
⚠
INCIDENT RATE
1.6%
1 flagged

Routes flown

By count · last 90 days

6
PAFA → KORD
35
avg 5h 39m · Fairbanks → Chicago O'Hare
1AK9 → KORD
15
avg 5h 44m · Tundra Copter Heliport → Chicago O'Hare
2Z5 → KORD
2
avg 5h 54m · Chena River Seaplane Base → Chicago O'Hare
KIND → KORD
1
avg 1h 46m · Indianapolis → Chicago O'Hare
PAFA → PANC
1
avg 2h 48m · Fairbanks → Ted Stevens Anchorage
PAFA → KIND
1
avg 6h 10m · Fairbanks → Indianapolis

Aircraft types

Equipment used on this number

1
B39M BOEING Boeing 737 MAX 9
65

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 UAL1640

30
N37449BOEING Boeing 737 MAX 9
→
9/24/2026
5h 51m
No alerts
Replay Analysis
N37449BOEING Boeing 737 MAX 9
→
9/23/2026
5h 49m
No alerts
Replay Analysis
N37445BOEING Boeing 737 MAX 9
→
9/22/2026
5h 53m
No alerts
Replay Analysis
N17413BOEING Boeing 737 MAX 9
→
9/21/2026
5h 35m
No alerts
Replay Analysis
N47434BOEING Boeing 737 MAX 9
→
9/20/2026
5h 33m
No alerts
Replay Analysis
N77581BOEING Boeing 737 MAX 9
→
9/19/2026
12m
No alerts
Replay Analysis
N77581BOEING Boeing 737 MAX 9
→
9/19/2026
1h 46m
No alerts
Replay Analysis
N77581BOEING Boeing 737 MAX 9
→
9/19/2026
6h 10m
No alerts
Replay Analysis
N17430BOEING Boeing 737 MAX 9
→
9/18/2026
5h 51m
No alerts
Replay Analysis
N17423BOEING Boeing 737 MAX 9
→
9/17/2026
6h 2m
No alerts
Replay Analysis
N77579BOEING Boeing 737 MAX 9
→
9/16/2026
5h 44m
No alerts
Replay Analysis
N27511BOEING Boeing 737 MAX 9
→
9/15/2026
5h 27m
No alerts
Replay Analysis
N17459BOEING Boeing 737 MAX 9
→
9/14/2026
5h 23m
No alerts
Replay Analysis
N17477BOEING Boeing 737 MAX 9
→
9/12/2026
5h 35m
No alerts
Replay Analysis
N17455BOEING Boeing 737 MAX 9
→
9/11/2026
5h 39m
No alerts
Replay Analysis
N17452BOEING Boeing 737 MAX 9
→
9/10/2026
5h 42m
No alerts
Replay Analysis
N37447BOEING Boeing 737 MAX 9
→
9/8/2026
5h 50m
No alerts
Replay Analysis
N27464BOEING Boeing 737 MAX 9
→
9/5/2026
5h 31m
No alerts
Replay Analysis
N47457BOEING Boeing 737 MAX 9
→
9/4/2026
5h 37m
No alerts
Replay Analysis
N77426BOEING Boeing 737 MAX 9
→
9/2/2026
5h 47m
No alerts
Replay Analysis
N37507BOEING Boeing 737 MAX 9
→
9/1/2026
5h 44m
No alerts
Replay Analysis
N47569BOEING Boeing 737 MAX 9
→
8/31/2026
5h 57m
No alerts
Replay Analysis
N57416BOEING Boeing 737 MAX 9
→
8/30/2026
5h 59m
No alerts
Replay Analysis
N77552BOEING Boeing 737 MAX 9
→
8/29/2026
2h 48m
No alerts
Replay Analysis
N17566BOEING Boeing 737 MAX 9
→
8/28/2026
3h 45m
No alerts
Replay Analysis
N17566BOEING Boeing 737 MAX 9
→
8/28/2026
1h 28m
No alerts
Replay Analysis
N17566BOEING Boeing 737 MAX 9
→
8/28/2026
5h 51m
No alerts
Replay Analysis
N17566BOEING Boeing 737 MAX 9
→
8/27/2026
5h 46m
No alerts
Replay Analysis
N37531BOEING Boeing 737 MAX 9
→
8/26/2026
5h 42m
No alerts
Replay Analysis
N17433BOEING Boeing 737 MAX 9
→
8/25/2026
5h 37m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window