Informational Guide to Norman Y. Mineta San Jose Airport (SJC) - NON OFFICIAL

DL3999 Delta Air Lines - Flight Status

This website is an informational guide and is not sponsored by, endorsed by, or affiliated with the City of San José Airport Commission, and that visitors intending to reach the official site should visit flysanjose.com. 

Below, you can find details about Delta Air Lines flight DL3999, which currently operates between the airports of San Jose - San Jose Mineta International Airport (Airport Code SJC) and Seattle - Seattle-Tacoma International Airport (Airport Code SEA).
This flight data pertains specifically to the flight's details for Sunday, January 26, 2025.

DL3999 On Time performance:
83
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Flight Status

DL3999 Delta Air Lines to Seattle

This flight is not scheduled for January 30, 2025.

Airline information

Delta Air Lines
Delta Air Lines

Departure

San Jose (SJC)
January 26, 2025
San Jose Mineta International Airport

Arrival

Seattle (SEA)
January 26, 2025
Seattle-Tacoma International Airport
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.sanjose-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- VS1940 - Virgin Atlantic

Additional Information

Which is the frequency of flight DL3999?
The flight DL3999 is scheduled to flight on Saturday, Sunday on a weekly basis.

Which is the distance of flight DL3999?
The distance between the two airports is 697 miles.

Which is the flight time of flight DL3999?
The scheduled flight time gate to gate is: 02:23 hours.
The real flight time gate to gate on average is: 02:22 hours.

Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.

Alternative Flights

The following airlines serves the same route between San Jose and Seattle:

Alaska Airlines
- Flight Number: AS1046. (On Time performance: 90 - Average Delay: 3 minutes)
- Flight Number: AS1079. (On Time performance: 91 - Average Delay: 3 minutes)
- Flight Number: AS1115. (On Time performance: 87 - Average Delay: 5 minutes)
- Flight Number: AS1130. (On Time performance: 91 - Average Delay: 1 minutes)
- Flight Number: AS1185. (On Time performance: 89 - Average Delay: 5 minutes)
- Flight Number: AS1227. (On Time performance: 90 - Average Delay: 5 minutes)
- Flight Number: AS2053. (On Time performance: 100 - Average Delay: 3 minutes)

Delta Air Lines
- Flight Number: DL3736. (On Time performance: 92 - Average Delay: 4 minutes)
- Flight Number: DL3789. (On Time performance: 85 - Average Delay: 18 minutes)
- Flight Number: DL3840. (On Time performance: 91 - Average Delay: 8 minutes)
- Flight Number: DL4088. (On Time performance: 95 - Average Delay: 3 minutes)

Southwest Airlines
- Flight Number: WN2299. (On Time performance: 60 - Average Delay: 39 minutes)
- Flight Number: WN3001. (On Time performance: 87 - Average Delay: 10 minutes)
- Flight Number: WN4310. (On Time performance: 88 - Average Delay: 5 minutes)
- Flight Number: WN805. (On Time performance: 89 - Average Delay: 3 minutes)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from January 11, 2025 to January 26, 2025, we have obtained these figures.
Total number of flights: 6
On Time: 5 ( 83 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 0 ( 0 % )
Major Delay: 1 ( 17 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 13 minutes.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from May 07, 2024 to June 06, 2024. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Last Past Flights DL3999

Date
Departure
Arrival
Duration
Aircraft
Status
Sunday
26 January
02:13 pm
San Jose (SJC)
04:25 pm
Seattle (SEA)
02h 12min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Saturday
25 January
03:50 pm
San Jose (SJC)
06:07 pm
Seattle (SEA)
02h 17min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Sunday
19 January
03:56 pm
San Jose (SJC)
06:30 pm
Seattle (SEA)
02h 34min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Saturday
18 January
03:51 pm
San Jose (SJC)
06:15 pm
Seattle (SEA)
02h 24min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Sunday
12 January
02:19 pm
San Jose (SJC)
04:48 pm
Seattle (SEA)
02h 29min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Saturday
11 January
05:17 pm
San Jose (SJC)
07:29 pm
Seattle (SEA)
02h 12min
Embraer 175 (E
Embraer 175 (E
Landed - Delayed