| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Mar 07 | LAS | SEA | 14:54 | 17:15 |
Landed Late
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| Mar 06 | LAS | SEA | 14:10 | 16:40 |
Landed
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| Mar 05 | LAS | SEA | 14:38 | 17:00 |
Landed
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| Mar 04 | LAS | SEA | 14:14 | 16:25 |
Landed
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| Mar 03 | LAS | SEA | 14:31 | 16:53 |
Landed
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| Mar 02 | LAS | SEA | 14:25 | 16:48 |
Landed
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| Mar 01 | LAS | SEA | 14:13 | 16:13 |
Landed
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| Feb 28 | LAS | SEA | 14:19 | 16:24 |
Landed
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| Feb 27 | LAS | SEA | 14:19 | 16:37 |
Landed
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| Feb 26 | LAS | SEA | 14:19 | 16:36 |
Landed
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Delta Air Lines Flight DL1257 connects Las Vegas, United States to Seattle, United States, taking off from Las Vegas McCarran International Airport LAS and landing at Seattle Tacoma International Airport SEA.
How long is the DL1257 flight from Las Vegas to Seattle?
The average flight time from Las Vegas to Seattle is 2 hours and 16 minutes. The flight distance is 1395 km / 867 miles and the average flight speed is 614 km/h / 381 mph.
What is the On-Time Performance (OTP) of Delta Air Lines Flight DL1257 Las Vegas to Seattle?
The Airportia On-Time Performance Rating for Delta Air Lines Flight DL1257 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight DL1257 arriving at?
Flight DL1257 arrives at Seattle Tacoma International Airport (SEA) Terminal B.
When was the latest DL1257 flight?
The latest flight took off on Sunday, March 8th, 2026 with the flight status being Landed on 17:15.
How else can the flight DL1257 be referenced as?
This Delta Air Lines flight can also be referenced as DAL1257, DL 1257, DAL 1257.
How often is flight DL1257 delayed?
On average, 20% of all DL1257 flights are delayed. The average delay is 8 minutes.
Can I get compensation for my delayed or cancelled DL1257 flight or baggage issues?
If your DL1257 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 DL1257 Flight Tracker above for more details.
Flight DL1257 is code-shared by 2 airlines using the flight numbers AM3688, VS1916
Other flights departing from Las Vegas LAS: WN1926, DL2288, DL545, WN2050
Other flights arriving at Seattle SEA: AS3100, DL3814, AS3322, AS2453
All flights connecting Las Vegas LAS to Seattle SEA.