Delta Air Lines DL640 Flight Status
According to Trip.com real-time data, the DL640 flight operated by Delta Air Lines on Sep 20, 2026 is scheduled to fly from San Francisco (SFO) to Atlanta (ATL). The flight is expected to depart at 8:00 AM (local time in San Francisco, UTC-7) and land at 3:04 PM (local time in Atlanta, UTC-4) .
Sat, Sep 19
Sun, Sep 20
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Arrived
The flight has arrived 14m early
4h 35m
Check-in Counter
--
Boarding Gate
C9
Arrival Gate
C46
Baggage
7
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Scheduled
Your flight will depart on time.
4h 35m
Check-in Counter
--
Boarding Gate
C9
Arrival Gate
B26
Baggage
7
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Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from San Francisco to Atlanta or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
DL442
|
Detroit (DTT) 
San Francisco (SFO)
San Francisco (SFO)Scheduled: 6:13 PM
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DL640 Aircraft Details
According to Trip.com real-time data, the DL640 flight flying from San Francisco to Atlanta on 9/20/2026 is operated by the aircraft model Boeing 737-900. This aircraft has been in service for 12y, 10m. The aircraft is equipped with 160 seats.
Boeing 737-900
Punctuality (Departure)
93%
Punctuality (Arrival)
100%
Early on average
17 minutes
Age
12y, 10m
Seats
160
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
Seatback entertainment system
Wi-Fi is available
USB port and power outlet
Seat Information
--
Legroom
44 cm
Seat width better than on 46% of flights
100°
Reclining Angle
3-3
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi is available
USB port and power outlet
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
2-2
Seat layout example
In-Flight Services
Meal included
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
86 cm
More legroom than on 17% of flights
44 cm
Seat width better than on 42% of flights
120°
Reclining Angle
3-3
Seat layout example
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Flight History for DL640
Trip.com historical records show that the last DL640 flight departed on Sat, Sep 19 from SFO at approximately 8:13 AM. This flight is expected to arrrive in ATL at 3:21 PM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Mon, Sep 14 | San Francisco (SFO) | Atlanta (ATL) | 739 | 8:10 AM | 3:15 PM | Arrived |
| Tue, Sep 15 | San Francisco (SFO) | Atlanta (ATL) | 739 | 8:09 AM | 3:18 PM | Arrived |
| Wed, Sep 16 | San Francisco (SFO) | Atlanta (ATL) | 739 | 8:10 AM | 3:13 PM | Arrived |
| Thu, Sep 17 | San Francisco (SFO) | Atlanta (ATL) | 739 | 8:34 AM | 3:40 PM | Arrived |
| Fri, Sep 18 | San Francisco (SFO) | Atlanta (ATL) | 739 | 8:14 AM | 3:17 PM | Arrived |
| Sat, Sep 19 | San Francisco (SFO) | Atlanta (ATL) | 739 | 8:13 AM | 3:21 PM | Arrived |
| Sun, Sep 20 | San Francisco (SFO) | Atlanta (ATL) | 739 | 8:00 AM | 3:04 PM | Scheduled |
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DL640 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of DL640 is 93% (Late on average 14 minutes), and the on-time arrival rate is 100% (Early on average 17 minutes).
On-Time Departures
Punctuality
93%
Late on average 14 minutes
Early
0%
On time
93%
30 mins late
7%
60 mins late
0%
90 mins late
0%
Canceled
0%
On-Time Arrivals
Punctuality
100%
Early on average 17 minutes
Early
93%
On time
7%
30 mins late
0%
60 mins late
0%
90 mins late
0%
Canceled
0%
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Frequently Asked Questions
What is the current status of flight dl640?
Flight dl640 has not departed yet and is currently on schedule. Scheduled departure 8:00 AM, arrival 3:35 PM (updated Sep 20, 2026).Is flight dl640 on time today?
Flight dl640 has not departed yet and is currently on schedule. Scheduled departure is 8:00 AM, with arrival at 3:35 PM. Recheck gate and timing before you head to the airport.Has flight dl640 departed yet? What is the departure time?
Flight dl640 is scheduled to depart at 8:00 AM. The latest actual or estimated departure time is 8:00 AM, and the current status is Scheduled (updated Sep 20, 2026).When is flight dl640 scheduled to arrive?
Flight dl640 is scheduled to arrive at 3:35 PM. The latest estimated or actual arrival time is 3:04 PM. Status is Scheduled as of Sep 20, 2026.What is the gate information for flight dl640?
For flight dl640, the departure terminal is T1 and the boarding gate is C9. Gate assignments can change at short notice—confirm on airport screens before heading to security.What is the baggage carousel number for flight dl640?
After arrival, baggage for flight dl640 is expected at carousel 7 in terminal S. Carousel numbers are assigned close to landing and may change—follow airport signs on arrival.What route does flight dl640 fly?
Flight dl640 is operated by Delta Air Lines from San Francisco (SFO) to Atlanta (ATL). Typical flight time is about 4 hours35 minutes; operating days may include Sunday.How can I check real-time status for flight dl640?
Track flight dl640 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.If flight dl640 is delayed or canceled, what should I do?
If dl640 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 20, 2026). Contact Delta Air Lines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight dl640 departed from San Francisco?
Flight dl640 has not departed from San Francisco (SFO) yet and is currently on schedule for 8:00 AM.What is the seat configuration for flight dl640?
Flight dl640 usually flies a Boeing 737-900 with seat layout 3-3. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Arrival Info: Atlanta Weather & Current Time
Partly clear with thunder and rain
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3 hour time difference
Time on arrival: San Francisco 12:04| Atlanta 15:04
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