DL 3690 Ontario to Seattle Flight Status

Delta Air Lines Flight DL3690 from Ontario International Airport ONT to Seattle Tacoma International Airport SEA is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on May 6th, 2026.
Check the table below for DL3690's most recent flight history:

DL 3690 Flight Status & Schedule

Date Departure Arrival Status
May 06 06:53 09:54
Unknown
Track >
May 05 06:47 10:02
Unknown
Track >
May 04 07:07 10:07
Unknown
Track >
May 03 06:49 09:33
Unknown
Track >
Apr 30 07:00 10:07
En-Route
Track >

Delta Air Lines DL 3690 Ontario to Seattle Flight Information

Delta Air Lines Flight DL3690 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 DL3690 flight from Ontario to Seattle?

The average flight time from Ontario to Seattle is 2 hours and 42 minutes. The flight distance is 1540 km / 957 miles and the average flight speed is 568 km/h / 353 mph.

What is the On-Time Performance (OTP) of Delta Air Lines Flight DL3690 Ontario to Seattle?

The Airportia On-Time Performance Rating for Delta Air Lines Flight DL3690 is 5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest DL3690 flight?

The latest flight took off on Wednesday, May 6th, 2026 with the flight status being Unknown on 09:54.

How else can the flight DL3690 be referenced as?

This Delta Air Lines flight can also be referenced as DAL3690, DL 3690, DAL 3690.

How often is flight DL3690 delayed?

On average, 0% of all DL3690 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled DL3690 flight or baggage issues?

If your DL3690 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 DL3690 Flight Tracker above for more details.

DL3690 and Ontario ONT to Seattle SEA Flights

Flight DL3690 is code-shared by 2 airlines using the flight numbers KE3098, KL5993

Other flights departing from Ontario ONT: TA531, AS544, WN2873, AS2456

Other flights arriving at Seattle SEA: 5Y9911, AS281, AS741, KE261

All flights connecting Ontario ONT to Seattle SEA.

DL3690 Delta Air Lines Flight: Ontario 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.