DAL400 is operated by DELTA AIR LINES INC between San Francisco International Airport (KSFO) and General Edward Lawrence Logan International Airport (KBOS). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 5h 25m. SkyMeter has observed 87 legs of this flight number via ADS-B.

✈
FLIGHTS
87
last 90 days
⏱
AVG DURATION
5h 25m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/5/2026
first → last seen
🗺
ROUTES / TYPES
5 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KSFO → KBOS
65
avg 5h 30m · San Francisco → General Edward Lawrence Logan
KHAF → KBOS
13
avg 5h 28m · Half Moon Bay → General Edward Lawrence Logan
KOAK → KBOS
5
avg 5h 35m · Metropolitan Oakland → General Edward Lawrence Logan

Aircraft types

Equipment used on this number

1
A21N AIRBUS Airbus A321 Neo
87

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 DAL400

30
N544DNAIRBUS Airbus A321 Neo
→
9/5/2026
5h 26m
No alerts
Replay Analysis
N544DNAIRBUS Airbus A321 Neo
→
9/4/2026
5h 37m
No alerts
Replay Analysis
N544DNAIRBUS Airbus A321 Neo
→
9/2/2026
5h 12m
No alerts
Replay Analysis
N517DNAIRBUS Airbus A321 Neo
→
9/1/2026
5h 23m
No alerts
Replay Analysis
N548DNAIRBUS Airbus A321 Neo
→
8/31/2026
5h 47m
No alerts
Replay Analysis
N548DNAIRBUS Airbus A321 Neo
→
8/30/2026
5h 13m
No alerts
Replay Analysis
N548DNAIRBUS Airbus A321 Neo
→
8/29/2026
5h 18m
No alerts
Replay Analysis
N516DAAIRBUS Airbus A321 Neo
→
8/28/2026
5h 26m
No alerts
Replay Analysis
N522DAAIRBUS Airbus A321 Neo
→
8/27/2026
5h 25m
No alerts
Replay Analysis
N522DAAIRBUS Airbus A321 Neo
→
8/26/2026
5h 29m
No alerts
Replay Analysis
N522DAAIRBUS Airbus A321 Neo
→
8/25/2026
5h 5m
No alerts
Replay Analysis
N525DAAIRBUS Airbus A321 Neo
→
8/24/2026
5h 29m
No alerts
Replay Analysis
N543DEAIRBUS Airbus A321 Neo
→
8/23/2026
5h 28m
No alerts
Replay Analysis
N543DEAIRBUS Airbus A321 Neo
→
8/22/2026
5h 42m
No alerts
Replay Analysis
N513DAAIRBUS Airbus A321 Neo
→
8/21/2026
5h 41m
No alerts
Replay Analysis
N543DEAIRBUS Airbus A321 Neo
→
8/20/2026
5h 41m
No alerts
Replay Analysis
N543DEAIRBUS Airbus A321 Neo
→
8/19/2026
3h 51m
No alerts
Replay Analysis
N543DEAIRBUS Airbus A321 Neo
→
8/18/2026
5h 34m
No alerts
Replay Analysis
N544DNAIRBUS Airbus A321 Neo
→
8/17/2026
5h 8m
No alerts
Replay Analysis
N544DNAIRBUS Airbus A321 Neo
→
8/16/2026
5h 22m
No alerts
Replay Analysis
N544DNAIRBUS Airbus A321 Neo
→
8/15/2026
5h 41m
No alerts
Replay Analysis
N533DTAIRBUS Airbus A321 Neo
→
8/14/2026
5h 22m
No alerts
Replay Analysis
N504DZAIRBUS Airbus A321 Neo
→
8/13/2026
5h 18m
No alerts
Replay Analysis
N609DNAIRBUS Airbus A321 Neo
→
8/12/2026
5h 30m
No alerts
Replay Analysis
N609DNAIRBUS Airbus A321 Neo
→
8/11/2026
5h 16m
No alerts
Replay Analysis
N501DAAIRBUS Airbus A321 Neo
→
8/10/2026
5h 43m
No alerts
Replay Analysis
N501DAAIRBUS Airbus A321 Neo
→
8/9/2026
2h 16m
No alerts
Replay Analysis
N537DTAIRBUS Airbus A321 Neo
→
8/7/2026
5h 31m
No alerts
Replay Analysis
N528DEAIRBUS Airbus A321 Neo
→
8/6/2026
5h 34m
No alerts
Replay Analysis
N528DEAIRBUS Airbus A321 Neo
→
8/5/2026
5h 28m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window