| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 08 | SEA | ONT | 06:15 | 08:29 |
Landed
|
Track > |
Delta Air Lines Flight DL4621 connects Seattle, United States to Ontario, United States, taking off from Seattle Tacoma International Airport SEA and landing at Ontario International Airport ONT.
How long is the DL4621 flight from Seattle to Ontario?
The average flight time from Seattle to Ontario is 2 hours and 14 minutes. The flight distance is 1540 km / 957 miles and the average flight speed is 690 km/h / 429 mph.
What is the On-Time Performance (OTP) of Delta Air Lines Flight DL4621 Seattle to Ontario?
The Airportia On-Time Performance Rating for Delta Air Lines Flight DL4621 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight DL4621 arriving at?
Flight DL4621 arrives at Ontario International Airport (ONT) Terminal 2.
When was the latest DL4621 flight?
The latest flight took off on Wednesday, July 8th, 2026 with the flight status being Landed on 08:29.
How else can the flight DL4621 be referenced as?
This Delta Air Lines flight can also be referenced as DAL4621, DL 4621, DAL 4621.
How often is flight DL4621 delayed?
On average, 100% of all DL4621 flights are delayed. The average delay is 14 minutes.
Can I get compensation for my delayed or cancelled DL4621 flight or baggage issues?
If your DL4621 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 DL4621 Flight Tracker above for more details.
Other flights departing from Seattle SEA: WN3483, UA2029, DL9888, WN875
Other flights arriving at Ontario ONT: AS97, WN3145, 8C9723, WN4445
All flights connecting Seattle SEA to Ontario ONT.