| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 25 | SFO | SEA | 16:44 | 18:28 |
Landed
|
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| Oct 24 | SFO | SEA | 17:02 | 18:40 |
Landed
|
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| Oct 23 | SFO | SEA | 16:38 | 18:20 |
Landed
|
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| Oct 22 | SFO | SEA | 17:17 | 19:05 |
Landed Late
|
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| Oct 21 | SFO | SEA | 16:53 | 18:26 |
Landed
|
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| Oct 20 | SFO | SEA | 21:19 | 18:45 |
Unknown
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| Oct 19 | SFO | SEA | 16:42 | 18:30 |
Landed
|
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| Oct 18 | SFO | SEA | 16:39 | 18:17 |
Landed
|
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| Oct 17 | SFO | SEA | 16:57 | 18:44 |
Landed
|
Track > |
| Oct 16 | SFO | SEA | 16:37 | 18:24 |
Landed
|
Track > |
United Airlines Flight UA343 connects San Francisco, United States to Seattle, United States, taking off from San Francisco International Airport SFO and landing at Seattle Tacoma International Airport SEA.
How long is the UA343 flight from San Francisco to Seattle?
The average flight time from San Francisco to Seattle is 1 hour and 42 minutes. The flight distance is 1093 km / 679 miles and the average flight speed is 624 km/h / 388 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA343 San Francisco to Seattle?
The Airportia On-Time Performance Rating for United Airlines Flight UA343 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA343 arriving at?
Flight UA343 arrives at Seattle Tacoma International Airport (SEA) Terminal 6.
When was the latest UA343 flight?
The latest flight took off on Sunday, October 26th, 2025 with the flight status being Landed on 18:28.
How else can the flight UA343 be referenced as?
This United Airlines flight can also be referenced as UAL343, UA0343, UA 343, UAL 343.
How often is flight UA343 delayed?
On average, 10% of all UA343 flights are delayed. The average delay is 20 minutes.
Can I get compensation for my delayed or cancelled UA343 flight or baggage issues?
If your UA343 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 UA343 Flight Tracker above for more details.
Flight UA343 is code-shared by 5 airlines using the flight numbers CA7336, EK6385, NZ9406, OZ6401, VA8282
Other flights departing from San Francisco SFO: UA1772, UA5913, UA1630, WN3546
Other flights arriving at Seattle SEA: UA2403, AS1147, AS975, AS979
All flights connecting San Francisco SFO to Seattle SEA.
