Informational Guide to Seattle–Tacoma Airport - Seatac (SEA) - NON OFFICIAL

DL1643 Delta Air Lines - Flight Status

Below, you can find details about Delta Air Lines flight DL1643, which currently operates between the airports of Seattle - Seattle-Tacoma International Airport (Airport Code SEA) and Los Angeles - Los Angeles International Airport (Airport Code LAX).
This flight data pertains specifically to the flight's details for Thursday, February 19, 2026.

DL1643 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

DL1643 Delta Air Lines to Los Angeles

Landed - Delayed
Delay: 25 minutes
Flight Status for Thursday February 19, 2026
This flight is also scheduled for Today (February 20, 2026). See it here
This flight is also scheduled for Tomorrow (February 21, 2026). See it here

Airline information

Delta Air Lines
Delta Air Lines
Equipment: Boeing 737-900 Passenger (Scimitar Winglets)

Departure

Seattle (SEA)
February 19, 2026
Seattle-Tacoma International Airport
Departed at:
11:23 am
Gate:
A12
Scheduled Departure Time: 11:17 am

Arrival

Los Angeles (LAX)
February 19, 2026
Los Angeles International Airport
Arrived at:
02:20 pm
Terminal:
3
Gate:
38
Scheduled Arrival Time: 01:55 pm
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.seattle-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:

- KE7232 - Korean Air

- SK3457 - SAS Scandinavian Airlines

- VS1548 - Virgin Atlantic

Additional Information

Which is the frequency of flight DL1643?
The flight DL1643 is scheduled to flight on daily basis.

Which is the distance of flight DL1643?
The distance between the two airports is 955 miles.

Which is the flight time of flight DL1643?
The scheduled flight time gate to gate is: 02:38 hours.
The real flight time gate to gate on average is: 02:39 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 Seattle and Los Angeles:

American Airlines
- Flight Number: AA6413. (On Time performance: 64 - Average Delay: 45 minutes)
- Flight Number: AA6420. (On Time performance: 72 - Average Delay: 36 minutes)

Alaska Airlines
- Flight Number: AS1300. (On Time performance: 82 - Average Delay: 11 minutes)
- Flight Number: AS1306. (On Time performance: 87 - Average Delay: 7 minutes)
- Flight Number: AS1316. (On Time performance: 83 - Average Delay: 6 minutes)
- Flight Number: AS1333. (On Time performance: 75 - Average Delay: 16 minutes)
- Flight Number: AS1338. (On Time performance: 71 - Average Delay: 17 minutes)
- Flight Number: AS1390. (On Time performance: 51 - Average Delay: 17 minutes)
- Flight Number: AS1411. (On Time performance: 80 - Average Delay: 13 minutes)
- Flight Number: AS505. (On Time performance: 74 - Average Delay: 12 minutes)
- Flight Number: AS524. (On Time performance: 77 - Average Delay: 10 minutes)
- Flight Number: AS696. (On Time performance: 79 - Average Delay: 8 minutes)

Delta Air Lines
- Flight Number: DL1628. (On Time performance: 88 - Average Delay: 7 minutes)
- Flight Number: DL2769. (On Time performance: 74 - Average Delay: 15 minutes)
- Flight Number: DL2830. (On Time performance: 87 - Average Delay: 9 minutes)
- Flight Number: DL2854. (On Time performance: 79 - Average Delay: 17 minutes)
- Flight Number: DL2861. (On Time performance: 78 - Average Delay: 13 minutes)
- Flight Number: DL2914. (On Time performance: 76 - Average Delay: 14 minutes)

Frontier Airlines
- Flight Number: F91178. (On Time performance: 88 - Average Delay: 4 minutes)

FedEx
- Flight Number: FX3954. (On Time performance: 69 - Average Delay: 23 minutes)
- Flight Number: FX454. (On Time performance: 70 - Average Delay: 90 minutes)

United Airlines
- Flight Number: UA5467. (On Time performance: 100 - Average Delay: 1 minutes)
- Flight Number: UA5657. (On Time performance: 88 - Average Delay: 6 minutes)
- Flight Number: UA5659. (On Time performance: 95 - Average Delay: 3 minutes)
- Flight Number: UA5663. (On Time performance: 92 - Average Delay: 6 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 February 12, 2026 to February 17, 2026, we have obtained these figures.
Total number of flights: 6
On Time: 5 ( 83 % )
Moderate Delay: 1 ( 17 % )
Significant Delay: 0 ( 0 % )
Major Delay: 0 ( 0 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 6 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: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights DL1643

Date
Departure
Arrival
Duration
Aircraft
Status
Thursday
19 February
11:23 am
Seattle (SEA)
02:20 pm
Los Angeles (LAX)
02h 57min
Boeing 737-900
Boeing 737-900
Landed - Delayed
Wednesday
18 February
11:14 am
Seattle (SEA)
01:50 pm
Los Angeles (LAX)
02h 36min
Boeing 737-900
Boeing 737-900
Landed - On-time
Tuesday
17 February
11:16 am
Seattle (SEA)
01:47 pm
Los Angeles (LAX)
02h 31min
Boeing 737-900
Boeing 737-900
Landed - On-time
Monday
16 February
11:12 am
Seattle (SEA)
02:01 pm
Los Angeles (LAX)
02h 49min
Boeing 737-900
Boeing 737-900
Landed - On-time
Sunday
15 February
11:12 am
Seattle (SEA)
02:03 pm
Los Angeles (LAX)
02h 51min
Boeing 737-900
Boeing 737-900
Landed - On-time
Saturday
14 February
11:32 am
Seattle (SEA)
02:15 pm
Los Angeles (LAX)
02h 43min
Boeing 737-900
Boeing 737-900
Landed - Delayed
Friday
13 February
11:17 am
Seattle (SEA)
01:50 pm
Los Angeles (LAX)
02h 33min
Boeing 737-900
Boeing 737-900
Landed - On-time
Thursday
12 February
11:16 am
Seattle (SEA)
01:45 pm
Los Angeles (LAX)
02h 29min
Boeing 737-900
Boeing 737-900
Landed - On-time