DL4639 Delta Air Lines - Flight Status
Below, you can find details about Delta Air Lines flight DL4639, which currently operates between the airports of Detroit - Detroit Metropolitan Wayne County Airport (Airport Code DTW) and Buffalo - Buffalo Niagara International Airport (Airport Code BUF).
This flight data pertains specifically to the flight's details for Thursday, January 22, 2026.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights DL4639
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights DL4639
DL4639 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions. Flight Status
DL4639 Delta Air Lines to Buffalo
Scheduled - On-time
Flight Status for Thursday January 22, 2026
Scheduled - On-time
Flight Status for Thursday January 22, 2026
Airline information
Delta Air Lines
Equipment: Canadair (Bombardier) Regional Jet 900 and Challenger 890
Departure
Detroit (DTW)
January 22, 2026
Detroit Metropolitan Wayne County Airport
Estimated Departure Time:
08:30 am
Terminal:
M - McNamara
Gate:
-
Scheduled Departure Time: 08:30 am
Arrival
Buffalo (BUF)
January 22, 2026
Buffalo Niagara International Airport
Estimated Arrival Time:
09:53 am
Terminal:
-
Gate:
-
Scheduled Arrival Time: 09:53 am
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.detroit-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.
Additional Information
Which is the frequency of flight DL4639?
The flight DL4639 is currently not scheduled at Detroit Metro Airport (DTW).
Which is the distance of flight DL4639?
The distance between the two airports is 241 miles.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
The flight DL4639 is currently not scheduled at Detroit Metro Airport (DTW).
Which is the distance of flight DL4639?
The distance between the two airports is 241 miles.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
Alternative Flights
The following airline serve the same route between Detroit and Buffalo:
Delta Air Lines - Flight Number: DL1749. (On Time performance: 64 - Average Delay: 33 minutes)
Delta Air Lines - Flight Number: DL1749. (On Time performance: 64 - Average Delay: 33 minutes)
Punctuality and delays
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Last Past Flights DL4639
Date
Departure
Arrival
Duration
Aircraft
Status
Monday
19 January
19 January
08:27 am
Detroit (DTW)
Detroit (DTW)
10:01 am
Buffalo (BUF)
Buffalo (BUF)
01h 34min
Canadair (Bomb
Canadair (Bomb
Landed - On-time