G4 378 Key West to Cincinnati Flight Status

Allegiant Air Flight G4378 from Key West International Airport EYW to Cincinnati Northern Kentucky International Airport CVG is not scheduled for today June 3rd, 2026.
The last time the flight was scheduled was on January 5th, 2026.
Check the table below for G4378's most recent flight history:

G4 378 Flight Status & Schedule

Date Departure Arrival Status
Jan 05 19:03 21:39
Landed
Track >
Dec 29 18:40 21:02
Landed Late
Track >
Dec 22 19:11 21:38
Delayed
Track >
Dec 15 13:17 15:48
Landed
Track >
Dec 12 14:08 16:37
Landed Late
Track >

Allegiant Air G4 378 Key West to Cincinnati Flight Information

Allegiant Air Flight G4378 connects Key West, United States to Cincinnati, United States, taking off from Key West International Airport EYW and landing at Cincinnati Northern Kentucky International Airport CVG.

How long is the G4378 flight from Key West to Cincinnati?

The average flight time from Key West to Cincinnati is 2 hours and 26 minutes. The flight distance is 1634 km / 1016 miles and the average flight speed is 669 km/h / 415 mph.

What is the On-Time Performance (OTP) of Allegiant Air Flight G4378 Key West to Cincinnati?

The Airportia On-Time Performance Rating for Allegiant Air Flight G4378 is 4.7/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest G4378 flight?

The latest flight took off on Tuesday, January 6th, 2026 with the flight status being Landed on 21:39.

How else can the flight G4378 be referenced as?

This Allegiant Air flight can also be referenced as AAY378, G40378, G4 378, AAY 378.

How often is flight G4378 delayed?

On average, 57% of all G4378 flights are delayed. The average delay is 32 minutes.

Can I get compensation for my delayed or cancelled G4378 flight or baggage issues?

If your G4378 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 G4378 Flight Tracker above for more details.

G4378 and Key West EYW to Cincinnati CVG Flights

Other flights departing from Key West EYW: UA3692, AA3424, G41048

Other flights arriving at Cincinnati CVG: G43117, WN3691, UA4574, AA2533

All flights connecting Key West EYW to Cincinnati CVG.

G4378 Allegiant Air Flight: Key West to Cincinnati 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.