ORD → GSP: 69% on-time

Historical on-time performance

Chicago to Greenville

577 miData through May 2026Source: US DOT · BTS

Flights on ORD–GSP arrive on time 69% of the time over the last 12 months.

On-time rate69%arrived within 15 min

p90 delay60 min1 in 10 flights is worse (tail risk)

Cancelled4.1%of scheduled flights

based on 1,567 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

Airline	On-time	Median	p90	Cancel	Flights
Republic Airways	77%	on time	55 min	3.6%	304
Envoy Air	73%	on time	50 min	3.1%	745
SkyWest Airlines	63%	on time	60 min	4.9%	364
PSA Airlines⚠ low data	46%	15 min	125 min	6.5%	123
American Airlines⚠ low data	42%	15 min	65 min	12.9%	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 64 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 — 85% on time.

On-time rates are fairly even by day on this route — ranging from 72% to 77% on time.

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