Flight Status & Tracker

UAL688

UNITED AIRLINES INC · IAD → BOS · Last tracked Sep 25, 2026

UAL688 is a flight number operated by UNITED AIRLINES INC between Washington Dulles International Airport (KIAD) and General Edward Lawrence Logan International Airport (KBOS). SkyMeter last tracked UAL688 on September 25, 2026. The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 1h 43m. SkyMeter has observed 126 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
126
last 90 days
⏱
AVG DURATION
1h 43m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/25/2026
first → last seen
🗺
ROUTES / TYPES
11 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.8%
1 flagged

Routes flown

By count · last 90 days

7
KIAD → KBOS
76
avg 1h 33m · Washington Dulles → General Edward Lawrence Logan
KMCI → KIAD
38
avg 2h 11m · Kansas City → Washington Dulles
4MA8 → KBOS
1
avg 9m · Pg Heliport → General Edward Lawrence Logan
3VA5 → KBOS
1
avg 1h 18m · Goose Hunt Farm → General Edward Lawrence Logan
KMCI → KPIT
1
avg 2h 27m · Kansas City → Pittsburgh
KPIT → KIAD
1
avg 42m · Pittsburgh → Washington Dulles
KSNA → KIAD
1
avg 4h 46m · John Wayne Airport-Orange County → Washington Dulles

Aircraft types

Equipment used on this number

6
B739 BOEING Boeing 737-900
64
B39M BOEING Boeing 737 MAX 9
44
A319 AIRBUS Airbus A319
36
A320 AIRBUS Airbus A320
7
B38M BOEING Boeing 737 MAX 8
1
B737 BOEING Boeing 737-700
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 UAL688

30
N66893BOEING Boeing 737-900
→
9/25/2026
1h 13m
No alerts
Replay Analysis
N36447BOEING Boeing 737-900
→
9/25/2026
54m
No alerts
Replay Analysis
N36447BOEING Boeing 737-900
→
9/25/2026
1h 31m
No alerts
Replay Analysis
N36447BOEING Boeing 737-900
→
9/25/2026
36m
No alerts
Replay Analysis
N54711BOEING Boeing 737-700
→
9/24/2026
4h 46m
No alerts
Replay Analysis
N34455BOEING Boeing 737-900
→
9/24/2026
51m
No alerts
Replay Analysis
N34455BOEING Boeing 737-900
→
9/24/2026
1h 53m
No alerts
Replay Analysis
N34455BOEING Boeing 737-900
→
9/24/2026
1h 1m
No alerts
Replay Analysis
N38451BOEING Boeing 737-900
→
9/23/2026
47m
No alerts
Replay Analysis
N38451BOEING Boeing 737-900
→
9/23/2026
1h 37m
No alerts
Replay Analysis
N38451BOEING Boeing 737-900
→
9/23/2026
48m
No alerts
Replay Analysis
N68817BOEING Boeing 737-900
→
9/22/2026
1h 8m
No alerts
Replay Analysis
N37465BOEING Boeing 737-900
→
9/21/2026
59m
No alerts
Replay Analysis
N37465BOEING Boeing 737-900
→
9/21/2026
48m
No alerts
Replay Analysis
N37465BOEING Boeing 737-900
→
9/21/2026
1h 47m
No alerts
Replay Analysis
N77592BOEING Boeing 737 MAX 9
→
9/19/2026
1h 25m
No alerts
Replay Analysis
N61887BOEING Boeing 737-900
→
9/19/2026
1h 20m
↻ Go-around
Replay Analysis
N67815BOEING Boeing 737-900
→
9/18/2026
1h 30m
No alerts
Replay Analysis
N38454BOEING Boeing 737-900
→
9/17/2026
56m
No alerts
Replay Analysis
N38454BOEING Boeing 737-900
→
9/17/2026
1h 0m
No alerts
Replay Analysis
N38454BOEING Boeing 737-900
→
9/17/2026
1h 57m
No alerts
Replay Analysis
N69824BOEING Boeing 737-900
→
9/16/2026
40m
No alerts
Replay Analysis
N68452BOEING Boeing 737-900
→
9/14/2026
1h 30m
No alerts
Replay Analysis
N37295BOEING Boeing 737 MAX 8
→
9/13/2026
1h 25m
No alerts
Replay Analysis
N69847BOEING Boeing 737-900
→
9/12/2026
9m
No alerts
Replay Analysis
N69847BOEING Boeing 737-900
→
9/12/2026
1h 20m
No alerts
Replay Analysis
N75436BOEING Boeing 737-900
→
9/10/2026
1h 35m
No alerts
Replay Analysis
N39450BOEING Boeing 737-900
→
9/10/2026
28m
No alerts
Replay Analysis
N27421BOEING Boeing 737-900
→
9/9/2026
1h 37m
No alerts
Replay Analysis
N28478BOEING Boeing 737-900
→
9/6/2026
1h 29m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window