DAL637 is operated by DELTA AIR LINES INC between Seattle Tacoma International Airport (KSEA) and Chicago O'Hare International Airport (KORD). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 3h 48m. SkyMeter has observed 160 legs of this flight number via ADS-B.

✈
FLIGHTS
160
last 90 days
⏱
AVG DURATION
3h 48m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
11 / 4
city pairs · airframes
⚠
INCIDENT RATE
1.9%
3 flagged

Routes flown

By count · last 90 days

6
KSEA → KORD
74
avg 3h 50m · Seattle Tacoma → Chicago O'Hare
KORD → KSEA
59
avg 4h 11m · Chicago O'Hare → Seattle Tacoma
KMKE → KORD
2
avg 47m · General Mitchell → Chicago O'Hare
KORD → KRNT
2
avg 3h 57m · Chicago O'Hare → Renton
46LL → KSEA
1
avg 4h 10m · Lefkowitz Heliport → Seattle Tacoma
KSEA → KMKE
1
avg 4h 50m · Seattle Tacoma → General Mitchell

Aircraft types

Equipment used on this number

4
B739 BOEING Boeing 737-900
212
BCS3 AIRBUS-BOMBARDIER Airbus A220-300
35
B738 BOEING Boeing 737-800
13
BCS1 AIRBUS-BOMBARDIER Airbus A220-100
2

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
3
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 DAL637

30
N802DNBOEING Boeing 737-900
→
07/19/2026
32m
No alerts
Replay Analysis
N802DNBOEING Boeing 737-900
→
07/19/2026
3h 27m
No alerts
Replay Analysis
N847DNBOEING Boeing 737-900
→
07/19/2026
3h 24m
No alerts
Replay Analysis
N847DNBOEING Boeing 737-900
→
07/18/2026
4h 4m
No alerts
Replay Analysis
N847DNBOEING Boeing 737-900
→
07/18/2026
39m
No alerts
Replay Analysis
N847DNBOEING Boeing 737-900
→
07/18/2026
3h 55m
No alerts
Replay Analysis
N861DNBOEING Boeing 737-900
→
07/17/2026
48m
No alerts
Replay Analysis
N861DNBOEING Boeing 737-900
→
07/17/2026
4h 12m
No alerts
Replay Analysis
N818DABOEING Boeing 737-900
→
07/17/2026
3h 51m
No alerts
Replay Analysis
N818DABOEING Boeing 737-900
→
07/16/2026
9m
No alerts
Replay Analysis
N818DABOEING Boeing 737-900
→
07/16/2026
4h 1m
No alerts
Replay Analysis
N901DNBOEING Boeing 737-900
→
07/15/2026
36m
No alerts
Replay Analysis
N901DNBOEING Boeing 737-900
→
07/15/2026
3h 40m
No alerts
Replay Analysis
N819DNBOEING Boeing 737-900
→
07/15/2026
3h 30m
No alerts
Replay Analysis
N819DNBOEING Boeing 737-900
→
07/14/2026
4h 18m
No alerts
Replay Analysis
N819DNBOEING Boeing 737-900
→
07/14/2026
48m
No alerts
Replay Analysis
N819DNBOEING Boeing 737-900
→
07/14/2026
3h 48m
No alerts
Replay Analysis
N933DZBOEING Boeing 737-900
→
07/14/2026
3h 20m
No alerts
Replay Analysis
N933DZBOEING Boeing 737-900
→
07/13/2026
41m
No alerts
Replay Analysis
N933DZBOEING Boeing 737-900
→
07/13/2026
9h 47m
No alerts
Replay Analysis
N933DZBOEING Boeing 737-900
→
07/13/2026
4h 1m
No alerts
Replay Analysis
N846DNBOEING Boeing 737-900
→
07/13/2026
4h 5m
No alerts
Replay Analysis
N846DNBOEING Boeing 737-900
→
07/13/2026
35m
No alerts
Replay Analysis
N846DNBOEING Boeing 737-900
→
07/12/2026
3h 12m
No alerts
Replay Analysis
N846DNBOEING Boeing 737-900
→
07/12/2026
3h 47m
No alerts
Replay Analysis
N849DNBOEING Boeing 737-900
→
07/12/2026
3h 53m
No alerts
Replay Analysis
N849DNBOEING Boeing 737-900
→
07/11/2026
3h 54m
No alerts
Replay Analysis
N894DNBOEING Boeing 737-900
→
07/11/2026
3h 27m
No alerts
Replay Analysis
N894DNBOEING Boeing 737-900
→
07/10/2026
1h 0m
No alerts
Replay Analysis
N894DNBOEING Boeing 737-900
→
07/10/2026
11m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window