| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 18 | STL | BFI | 12:50 | 14:55 |
En-Route
|
Track > |
Japan Airlines Flight JL120 connects St. Louis, United States to Seattle, United States, taking off from St. Louis Lambert International Airport STL and landing at Seattle Boeing Field BFI.
How long is the JL120 flight from St. Louis to Seattle?
The average flight time from St. Louis to Seattle is 4 hours and 5 minutes. The flight distance is 2745 km / 1706 miles and the average flight speed is 672 km/h / 418 mph.
How many JL120 flights are operated per week?
1 flight per week. The flight JL120 is operated on Thursday.
What is the On-Time Performance (OTP) of Japan Airlines Flight JL120 St. Louis to Seattle?
The Airportia On-Time Performance Rating for Japan Airlines Flight JL120 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest JL120 flight?
The latest flight took off on Thursday, June 18th, 2026 with the flight status being En-Route on 14:55.
How else can the flight JL120 be referenced as?
This Japan Airlines flight can also be referenced as JAL120, JL0120, JL 120, JAL 120.
How often is flight JL120 delayed?
On average, 100% of all JL120 flights are delayed. The average delay is 2 minutes.
Can I get compensation for my delayed or cancelled JL120 flight or baggage issues?
If your JL120 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 JL120 Flight Tracker above for more details.
Other flights departing from St. Louis STL: WN4312, WN3981, UA3573, WN654
Other flights arriving at Seattle BFI: UD928, DL8840, MX6801, M56440
All flights connecting St. Louis STL to Seattle BFI.