KE91 Korean Air - Flight Status

Which is the frequency of flight KE91?
The flight KE91 is scheduled to flight on daily basis.

Which is the distance of flight KE91?
The distance between the two airports is 6815 miles.

Which is the flight time of flight KE91?
The scheduled flight time gate to gate is: 13:30 hours.
The real flight time gate to gate on average is: 15:17 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 Seoul: 2025-12-08 17:15:23
Current Time in Boston: 2025-12-08 03:15:23

Korean Air is the only airline operating the route from Seoul to Boston.

We have gathered data from recent months and present below an analysis of how timely the flights have been.

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from June 07, 2025 to December 06, 2025. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from December 02, 2024 to November 30, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.