S9 999 Boston to Knoxville Flight Status

Flybig Flight S9999 from Boston Logan International Airport BOS to Knoxville McGhee Tyson Airport TYS is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on May 21st, 2026.
Check the table below for S9999's most recent flight history:

S9 999 Flight Status & Schedule

Date Departure Arrival Status
May 21 18:01 20:03
Delayed
Track >

Flybig S9 999 Boston to Knoxville Flight Information

Flybig Flight S9999 connects Boston, United States to Knoxville, United States, taking off from Boston Logan International Airport BOS and landing at Knoxville McGhee Tyson Airport TYS.

How long is the S9999 flight from Boston to Knoxville?

The average flight time from Boston to Knoxville is 2 hours and 2 minutes. The flight distance is 1334 km / 829 miles and the average flight speed is 656 km/h / 408 mph.

What is the On-Time Performance (OTP) of Flybig Flight S9999 Boston to Knoxville?

The Airportia On-Time Performance Rating for Flybig Flight S9999 is 3.9/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest S9999 flight?

The latest flight took off on Thursday, May 21st, 2026 with the flight status being En-Route on 20:03.

How else can the flight S9999 be referenced as?

This Flybig flight can also be referenced as S90999, S9 999.

How often is flight S9999 delayed?

On average, 100% of all S9999 flights are delayed. The average delay is 64 minutes.

See our S9999 Flight Tracker above for more details.

S9999 and Boston BOS to Knoxville TYS Flights

Other flights departing from Boston BOS: DE2039, AC8695, B6777, WN1496

Other flights arriving at Knoxville TYS: AA3457, G41066, AA644, DL3042

All flights connecting Boston BOS to Knoxville TYS.

S9999 Flybig Flight: Boston to Knoxville Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.