| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 06 | DTW | BUF | 13:59 | 14:37 |
Landed
|
Track > |
| Jun 05 | DTW | BUF | 14:00 | 15:12 |
Delayed
|
Track > |
| Jun 04 | DTW | BUF | 14:00 | 15:12 |
Scheduled
|
Track > |
| Jun 02 | DTW | BUF | 14:21 | 15:03 |
Landed
|
Track > |
| Jun 01 | DTW | BUF | 14:06 | 14:45 |
Landed
|
Track > |
| May 31 | DTW | BUF | 14:00 | 15:12 |
Scheduled
|
Track > |
| May 29 | DTW | BUF | 14:10 | 14:54 |
Landed
|
Track > |
| May 28 | DTW | BUF | 14:21 | 15:01 |
Landed
|
Track > |
| May 25 | DTW | BUF | 14:24 | 15:07 |
Landed
|
Track > |
| May 24 | DTW | BUF | 14:07 | 14:51 |
Landed
|
Track > |
Delta Air Lines Flight DL4021 connects Detroit, United States to Buffalo, United States, taking off from Detroit Metropolitan Wayne County Airport DTW and landing at Buffalo Niagara International Airport BUF.
How long is the DL4021 flight from Detroit to Buffalo?
The average flight time from Detroit to Buffalo is 41 minutes. The flight distance is 387 km / 240 miles and the average flight speed is 490 km/h / 305 mph.
What is the On-Time Performance (OTP) of Delta Air Lines Flight DL4021 Detroit to Buffalo?
The Airportia On-Time Performance Rating for Delta Air Lines Flight DL4021 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest DL4021 flight?
The latest flight took off on Saturday, June 6th, 2026 with the flight status being Landed on 14:37.
How else can the flight DL4021 be referenced as?
This Delta Air Lines flight can also be referenced as DAL4021, DL 4021, DAL 4021.
How often is flight DL4021 delayed?
On average, 0% of all DL4021 flights are delayed. The average delay is 0 minutes.
Can I get compensation for my delayed or cancelled DL4021 flight or baggage issues?
If your DL4021 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our DL4021 Flight Tracker above for more details.
Flight DL4021 is code-shared by 3 airlines using the flight numbers AF5841, KE3387, KL5317
Other flights departing from Detroit DTW: DL5027, OO3994, WN544, DL5047
Other flights arriving at Buffalo BUF: WN3248, WN186, WN2840, WN807
All flights connecting Detroit DTW to Buffalo BUF.