Airport Tips & Quick Reference Guide to Seattle–Tacoma Airport - Seatac (SEA)

AS343 Alaska Airlines - Flight Status

Codeshare Flights
The flight JX7057 from Starlux Airlines (J2X) is a codeshare flight operated by Alaska Airlines (AS) under the flight number AS343. Check this page for details about flight AS343.

Below, you can find details about Alaska Airlines flight AS343, which currently operates between the airports of Tampa - Tampa International Airport (Airport Code TPA) and Seattle - Seattle-Tacoma International Airport (Airport Code SEA).
This flight data pertains specifically to the flight's details for Wednesday, June 03, 2026.

AS343 On Time performance:
94
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

AS343 Alaska Airlines from Tampa

Landed - On-time
Flight Status for Wednesday June 03, 2026
This flight is also scheduled for Today (June 04, 2026). See it here
This flight is also scheduled for Tomorrow (June 05, 2026). See it here

Airline information

Alaska Airlines
Alaska Airlines
Equipment: Boeing 737-900 Passenger (Scimitar Winglets)

Departure

Tampa (TPA)
June 03, 2026
Tampa International Airport
Departed at:
07:15 pm
Terminal:
-
Gate:
C43
Scheduled Departure Time: 07:19 pm

Arrival

Seattle (SEA)
June 03, 2026
Seattle-Tacoma International Airport
Arrived at:
10:17 pm
Gate:
D6
Scheduled Arrival Time: 10:30 pm
Baggage: 14
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:

- JX7057 - Starlux Airlines

Additional Information

Which is the frequency of flight AS343?
The flight AS343 is scheduled to flight on daily basis.

Which is the distance of flight AS343?
The distance between the two airports is 2517 miles.

Which is the flight time of flight AS343?
The scheduled flight time gate to gate is: 06:11 hours.
The real flight time gate to gate on average is: 05:58 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Tampa: 2026-06-04 15:18:30
Current Time in Seattle: 2026-06-04 12:18:30

Alternative Flights

The following airlines serves the same route between Tampa and Seattle:

Alaska Airlines
- Flight Number: AS326. (On Time performance: 59 - Average Delay: 36 minutes)
- Flight Number: AS640. (On Time performance: 79 - Average Delay: 11 minutes)

Delta Air Lines
- Flight Number: DL1090. (On Time performance: 90 - Average Delay: 5 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 March 07, 2026 to May 27, 2026, we have obtained these figures.
Total number of flights: 16
On Time: 15 ( 94 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 1 ( 6 % )
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 AS343

Date
Departure
Arrival
Duration
Aircraft
Status
Wednesday
03 June
07:15 pm
Tampa (TPA)
10:17 pm
Seattle (SEA)
06h 02min
Boeing 737-900
Boeing 737-900
Landed - On-time
Tuesday
02 June
07:18 pm
Tampa (TPA)
10:21 pm
Seattle (SEA)
06h 03min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Monday
01 June
07:19 pm
Tampa (TPA)
10:26 pm
Seattle (SEA)
06h 07min
Boeing 737-900
Boeing 737-900
Landed - On-time
Sunday
31 May
07:18 pm
Tampa (TPA)
10:51 pm
Seattle (SEA)
06h 33min
Boeing 737-900
Boeing 737-900
Landed - Delayed
Saturday
30 May
07:31 pm
Tampa (TPA)
10:07 pm
Seattle (SEA)
05h 36min
Boeing 737-900
Boeing 737-900
Landed - On-time
Friday
29 May
07:17 pm
Tampa (TPA)
10:10 pm
Seattle (SEA)
05h 53min
Boeing 737-900
Boeing 737-900
Landed - On-time
Thursday
28 May
07:29 pm
Tampa (TPA)
10:02 pm
Seattle (SEA)
05h 33min
Boeing 737-900
Boeing 737-900
Landed - On-time
Wednesday
27 May
07:12 pm
Tampa (TPA)
09:51 pm
Seattle (SEA)
05h 39min
Boeing 737-900
Boeing 737-900
Landed - On-time
Tuesday
26 May
07:31 pm
Tampa (TPA)
10:08 pm
Seattle (SEA)
05h 37min
Boeing 737-900
Boeing 737-900
Landed - On-time
Monday
25 May
07:11 pm
Tampa (TPA)
09:56 pm
Seattle (SEA)
05h 45min
Boeing 737-800
Boeing 737-800
Landed - On-time