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 28m. SkyMeter has observed 41 legs of this flight number via ADS-B.

✈
FLIGHTS
41
last 90 days
⏱
AVG DURATION
3h 28m
tracked time
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
6 / 3
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KSEA → KORD
18
avg 3h 51m · Seattle Tacoma → Chicago O'Hare
KORD → KSEA
11
avg 4h 5m · Chicago O'Hare → Seattle Tacoma
IS14 → KSEA
1
avg 4h 22m · Addison Fire Department Station 3 Heliport → Seattle Tacoma

Aircraft types

Equipment used on this number

3
B739 BOEING Boeing 737-900
33
BCS3 AIRBUS-BOMBARDIER Airbus A220-300
17
B738 BOEING Boeing 737-800
5

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 DAL637

30
N830DNBOEING Boeing 737-900
→
06/03/2026
23m
No alerts
Replay Analysis
N830DNBOEING Boeing 737-900
→
06/03/2026
3h 40m
No alerts
Replay Analysis
N870DNBOEING Boeing 737-900
→
06/03/2026
3h 34m
No alerts
Replay Analysis
N870DNBOEING Boeing 737-900
→
06/02/2026
3h 52m
No alerts
Replay Analysis
N870DNBOEING Boeing 737-900
→
06/02/2026
18m
No alerts
Replay Analysis
N870DNBOEING Boeing 737-900
→
06/02/2026
3h 53m
No alerts
Replay Analysis
N829DNBOEING Boeing 737-900
→
06/02/2026
3h 41m
No alerts
Replay Analysis
N829DNBOEING Boeing 737-900
→
06/01/2026
23m
No alerts
Replay Analysis
N829DNBOEING Boeing 737-900
→
06/01/2026
4h 5m
No alerts
Replay Analysis
N829DNBOEING Boeing 737-900
→
06/01/2026
4h 9m
No alerts
Replay Analysis
N900DUBOEING Boeing 737-900
→
06/01/2026
3h 44m
No alerts
Replay Analysis
N900DUBOEING Boeing 737-900
→
05/31/2026
18m
No alerts
Replay Analysis
N900DUBOEING Boeing 737-900
→
05/31/2026
4h 3m
No alerts
Replay Analysis
N900DUBOEING Boeing 737-900
→
05/31/2026
3h 57m
No alerts
Replay Analysis
N399DABOEING Boeing 737-800
→
05/31/2026
3h 45m
No alerts
Replay Analysis
N3749DBOEING Boeing 737-800
→
05/29/2026
3h 49m
No alerts
Replay Analysis
N874DNBOEING Boeing 737-900
→
05/29/2026
3h 20m
No alerts
Replay Analysis
N874DNBOEING Boeing 737-900
→
05/28/2026
23m
No alerts
Replay Analysis
N874DNBOEING Boeing 737-900
→
05/28/2026
3h 43m
No alerts
Replay Analysis
N874DNBOEING Boeing 737-900
→
05/28/2026
3h 58m
No alerts
Replay Analysis
N827DNBOEING Boeing 737-900
→
05/28/2026
3h 58m
No alerts
Replay Analysis
N827DNBOEING Boeing 737-900
→
05/27/2026
3h 27m
No alerts
Replay Analysis
N913DUBOEING Boeing 737-900
→
05/27/2026
3h 30m
No alerts
Replay Analysis
N913DUBOEING Boeing 737-900
→
05/26/2026
23m
No alerts
Replay Analysis
N913DUBOEING Boeing 737-900
→
05/26/2026
3h 53m
No alerts
Replay Analysis
N913DUBOEING Boeing 737-900
→
05/26/2026
4h 20m
No alerts
Replay Analysis
N897DNBOEING Boeing 737-900
→
05/26/2026
3h 31m
No alerts
Replay Analysis
N897DNBOEING Boeing 737-900
→
05/25/2026
20m
No alerts
Replay Analysis
N897DNBOEING Boeing 737-900
→
05/25/2026
3h 57m
No alerts
Replay Analysis
N3743HBOEING Boeing 737-800
→
05/24/2026
3h 38m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window