TYS → ORD: 64% on-time

Historical on-time performance

Knoxville to Chicago

475 miData through May 2026Source: US DOT · BTS

Flights on TYS–ORD arrive on time 64% of the time over the last 12 months.

On-time rate64%arrived within 15 min

p90 delay95 min1 in 10 flights is worse (tail risk)

Cancelled4.1%of scheduled flights

based on 1,891 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Airline	On-time	Median	p90	Cancel	Flights
United Airlinesbest	85%	on time	20 min	2.1%	237
SkyWest Airlines	69%	on time	75 min	2.5%	668
Republic Airways⚠ low data	67%	on time	85 min	0.0%	61
PSA Airlines	55%	on time	130 min	6.3%	894
Envoy Air⚠ low data	55%	on time	55 min	0.0%	31

Why flights run late

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Most cancellations here are attributed to Weather. Shares are among 78 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

By season

When to fly

All airlines · rolling 36 months (2023-06 .. 2026-05).

Mornings are the most reliable time of day to fly this route — 82% on time.

On-time rates are fairly even by day on this route — ranging from 70% to 76% on time.

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