DL 3966 Orange County to Seattle Flight Status

Delta Air Lines Flight DL3966 from Orange County John Wayne Airport SNA to Seattle Tacoma International Airport SEA is not scheduled for today September 10th, 2026.
The last time the flight was scheduled was on July 30th, 2026.
Check the table below for DL3966's most recent flight history:

DL 3966 Flight Status & Schedule

Date Departure Arrival Status
Jul 30 11:25 14:25
Scheduled
Track >
Jul 29 11:30 13:47
Landed
Track >
Jul 28 11:35 13:52
Landed
Track >
Jul 27 12:22 14:46
Landed Late
Track >
Jul 26 12:06 14:24
Landed
Track >

Delta Air Lines DL 3966 Orange County to Seattle Flight Information

Delta Air Lines Flight DL3966 connects Orange County, United States to Seattle, United States, taking off from Orange County John Wayne Airport SNA and landing at Seattle Tacoma International Airport SEA.

How long is the DL3966 flight from Orange County to Seattle?

The average flight time from Orange County to Seattle is 2 hours and 15 minutes. The flight distance is 1576 km / 979 miles and the average flight speed is 679 km/h / 422 mph.

What is the On-Time Performance (OTP) of Delta Air Lines Flight DL3966 Orange County to Seattle?

The Airportia On-Time Performance Rating for Delta Air Lines Flight DL3966 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest DL3966 flight?

The latest flight took off on Thursday, July 30th, 2026 with the flight status being Scheduled on 14:25.

How else can the flight DL3966 be referenced as?

This Delta Air Lines flight can also be referenced as DAL3966, DL 3966, DAL 3966.

How often is flight DL3966 delayed?

On average, 30% of all DL3966 flights are delayed. The average delay is 20 minutes.

Can I get compensation for my delayed or cancelled DL3966 flight or baggage issues?

If your DL3966 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 DL3966 Flight Tracker above for more details.

DL3966 and Orange County SNA to Seattle SEA Flights

Flight DL3966 is code-shared by 1 airline using the flight number KL6948

Other flights departing from Orange County SNA: AA2679, G41600, AS2020, G43532

Other flights arriving at Seattle SEA: AA2524, WN4130, DL3754, AS2000

All flights connecting Orange County SNA to Seattle SEA.

DL3966 Delta Air Lines Flight: Orange County to Seattle Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.