| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 20 | ONT | SEA | 18:01 | 20:50 |
Scheduled
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| Jul 29 | ONT | SEA | 18:09 | 20:27 |
Landed
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| Jul 28 | ONT | SEA | 18:02 | 20:09 |
Landed
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| Jul 27 | ONT | SEA | 17:56 | 20:05 |
Landed
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| Jul 26 | ONT | SEA | 18:18 | 20:26 |
Landed
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| Jul 25 | ONT | SEA | 18:36 | 20:48 |
Landed
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| Jul 24 | ONT | SEA | 18:34 | 20:46 |
Landed
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| Jul 23 | ONT | SEA | 19:14 | 21:30 |
Landed Late
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| Jul 22 | ONT | SEA | 18:14 | 20:23 |
Landed
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| Jul 21 | ONT | SEA | 18:31 | 20:38 |
Landed
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Delta Air Lines Flight DL4031 connects Ontario, United States to Seattle, United States, taking off from Ontario International Airport ONT and landing at Seattle Tacoma International Airport SEA.
How long is the DL4031 flight from Ontario to Seattle?
The average flight time from Ontario to Seattle is 2 hours and 10 minutes. The flight distance is 1540 km / 957 miles and the average flight speed is 691 km/h / 429 mph.
What is the On-Time Performance (OTP) of Delta Air Lines Flight DL4031 Ontario to Seattle?
The Airportia On-Time Performance Rating for Delta Air Lines Flight DL4031 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest DL4031 flight?
The latest flight took off on Friday, August 21st, 2026 with the flight status being Scheduled on 20:50.
How else can the flight DL4031 be referenced as?
This Delta Air Lines flight can also be referenced as DAL4031, DL 4031, DAL 4031.
How often is flight DL4031 delayed?
On average, 10% of all DL4031 flights are delayed. The average delay is 40 minutes.
Can I get compensation for my delayed or cancelled DL4031 flight or baggage issues?
If your DL4031 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 DL4031 Flight Tracker above for more details.
Other flights departing from Ontario ONT: F92275, WN4315, WN2188, WN3455
Other flights arriving at Seattle SEA: OO3999, WN3323, DL8846, CI831
All flights connecting Ontario ONT to Seattle SEA.
