United Airlines
UA684Los Angeles to Seattle
United Airlines flight UA684 flies from Los Angeles (LAX) to Seattle Tacoma (SEA), 1,537 km. Over August 2025 to July 2026 it usually arrives about 4 minutes late: 82% of 498 flights arrived within 15 minutes of schedule and 1% were cancelled (US Department of Transportation data).
On-time record, last 12 months
82%
on time (within 15 min)
13%
more than 30 min late
1%
cancelled
+4 min
average arrival vs schedule
Every operation of UA684, August 2025 to July 2026: 498 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as UA684
- Los Angeles (LAX) to Seattle Tacoma (SEA)132 flights
- Washington Dulles (IAD) to Los Angeles (LAX)124 flights
- Washington Dulles (IAD) to Charleston (CHS)58 flights
- Seattle Tacoma (SEA) to Washington Dulles (IAD)37 flights
- Columbus (CMH) to San Francisco (SFO)37 flights
- San Francisco (SFO) to Seattle Tacoma (SEA)34 flights
- Chicago O'Hare (ORD) to St. Louis (STL)24 flights
- Austin Bergstrom (AUS) to Newark Liberty (EWR)19 flights
- Chicago O'Hare (ORD) to Newark Liberty (EWR)16 flights
- Sarasota Bradenton (SRQ) to Chicago O'Hare (ORD)16 flights
Other flights from Los Angeles to Seattle
More about Los Angeles (LAX) and Seattle Tacoma (SEA).
Embed this on your site
A live badge for travel blogs, forums and trip reports. It updates as new data comes in, and links back here for the full stats.
Dark badge, HTML
<a href="https://tripstow.com/flights/ua684" title="UA684 is on time 82% of the time on TripStow"><img src="https://tripstow.com/badge/flights/ua684.svg" alt="UA684 is on time 82% of the time" width="360" height="88" loading="lazy"></a>
Light badge, HTML
<a href="https://tripstow.com/flights/ua684" title="UA684 is on time 82% of the time on TripStow"><img src="https://tripstow.com/badge/flights/ua684.svg?theme=light" alt="UA684 is on time 82% of the time" width="360" height="88" loading="lazy"></a>Markdown, for forums and README files
[](https://tripstow.com/flights/ua684)Flying soon?
Forward your booking to TripStow and get your trip built for you, with check-in reminders, punctuality for every flight and a map of everywhere you have been.
Start free