Flight Status & Tracker

UAL3939

UNITED AIRLINES INC · IAD → EWR · Last tracked Sep 28, 2026

UAL3939 is a flight number operated by UNITED AIRLINES INC between Washington Dulles International Airport (KIAD) and Newark Liberty International Airport (KEWR). SkyMeter last tracked UAL3939 on September 28, 2026. The flight is most often flown by a BOEING Boeing 737-700. Typical block time is 2h 24m. SkyMeter has observed 31 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
31
last 90 days
⏱
AVG DURATION
2h 24m
tracked time
📅
SERVICE PERIOD
12/1/2025 → 9/28/2026
first → last seen
🗺
ROUTES / TYPES
28 / 10
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KORD → KCLE
2
avg 1h 0m · Chicago O'Hare → Cleveland Hopkins
KIAD → KEWR
2
avg 1h 3m · Washington Dulles → Newark Liberty
KCMH → KDTW
1
avg 41m · John Glenn Columbus → Detroit Metropolitan Wayne County
LFPG → KIAD
1
avg 8h 48m · Charles de Gaulle → Washington Dulles
KIAH → KIAD
1
avg 2h 45m · George Bush Intercontinental Houston → Washington Dulles
KLAX → KSNA
1
avg 38m · Los Angeles → John Wayne Airport-Orange County
KSFO → KDEN
1
avg 2h 22m · San Francisco → Denver
KDEN → KSFO
1
avg 2h 30m · Denver → San Francisco
KSAT → KPBI
1
avg 3h 3m · San Antonio → Palm Beach
KDEN → KABQ
1
avg 1h 52m · Denver → Albuquerque International Sunport

Aircraft types

Equipment used on this number

10
B737 BOEING Boeing 737-700
6
B39M BOEING Boeing 737 MAX 9
6
B739 BOEING Boeing 737-900
4
A320 AIRBUS Airbus A320
4
A319 AIRBUS Airbus A319
4
B738 BOEING Boeing 737-800
4
B764 BOEING Boeing 767-400
3
B763 BOEING Boeing 767-300
3
B772 BOEING Boeing 777-200
2
B38M BOEING Boeing 737 MAX 8
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 UAL3939

30
N17017BOEING Boeing 787-10 Dreamliner
→
9/28/2026
2h 8m
No alerts
Replay Analysis
N14564AIRBUS Airbus A321 Neo
→
9/24/2026
2h 27m
No alerts
Replay Analysis
N894UAAIRBUS Airbus A319
→
9/22/2026
1h 10m
No alerts
Replay Analysis
N76288BOEING Boeing 737-800
→
9/20/2026
1h 51m
No alerts
Replay Analysis
N36447BOEING Boeing 737-900
→
9/18/2026
28m
No alerts
Replay Analysis
N36447BOEING Boeing 737-900
→
9/18/2026
49m
No alerts
Replay Analysis
N36447BOEING Boeing 737-900
→
9/18/2026
19m
No alerts
Replay Analysis
N17459BOEING Boeing 737 MAX 9
→
9/15/2026
2h 22m
No alerts
Replay Analysis
N649UABOEING Boeing 767-300
→
9/11/2026
53m
No alerts
Replay Analysis
N649UABOEING Boeing 767-300
→
9/10/2026
8h 47m
No alerts
Replay Analysis
N649UABOEING Boeing 767-300
→
9/10/2026
7h 54m
No alerts
Replay Analysis
N75854BOEING Boeing 757-300
→
9/8/2026
2h 29m
No alerts
Replay Analysis
N12225BOEING Boeing 737-800
→
9/3/2026
2h 59m
No alerts
Replay Analysis
N773UABOEING Boeing 777-200
→
8/31/2026
3h 6m
No alerts
Replay Analysis
N66057BOEING Boeing 767-400
→
8/28/2026
2h 57m
No alerts
Replay Analysis
N27586BOEING Boeing 737 MAX 9
→
8/21/2026
4h 48m
No alerts
Replay Analysis
N76021BOEING Boeing 777-200
→
8/18/2026
11h 7m
No alerts
Replay Analysis
N37468BOEING Boeing 737-900
→
8/16/2026
55m
No alerts
Replay Analysis
N480UAAIRBUS Airbus A320
→
8/14/2026
50m
No alerts
Replay Analysis
N13750BOEING Boeing 737-700
→
8/12/2026
1h 43m
No alerts
Replay Analysis
N13750BOEING Boeing 737-700
→
8/11/2026
2h 31m
No alerts
Replay Analysis
N13750BOEING Boeing 737-700
→
8/11/2026
4h 15m
No alerts
Replay Analysis
N25982BOEING Boeing 787-9 Dreamliner
→
8/10/2026
3h 35m
No alerts
Replay Analysis
N817UAAIRBUS Airbus A319
→
8/8/2026
2h 54m
No alerts
Replay Analysis
N817UAAIRBUS Airbus A319
→
8/8/2026
8m
No alerts
Replay Analysis
N817UAAIRBUS Airbus A319
→
8/8/2026
3h 3m
No alerts
Replay Analysis
N14107BOEING Boeing 757-200
→
8/6/2026
2h 44m
No alerts
Replay Analysis
N21723BOEING Boeing 737-700
→
8/5/2026
39m
No alerts
Replay Analysis
N21723BOEING Boeing 737-700
→
8/5/2026
57m
No alerts
Replay Analysis
N21723BOEING Boeing 737-700
→
8/5/2026
1h 36m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window