/ Flights / United Airlines / UA4378

UA4378 Flight Status United Airlines: Washington to Cincinnati (UAL4378)

UA 4378 Washington to Cincinnati Flight Status

United Airlines Flight UA4378 from Washington Dulles International Airport IAD to Cincinnati Northern Kentucky International Airport CVG is not scheduled for today June 3rd, 2026.
The last time the flight was scheduled was on August 16th, 2025.
Check the table below for UA4378's most recent flight history:

UA 4378 Flight Status & Schedule

Date Departure Arrival Status
Aug 16 17:58 18:58
Landed
 Track >
Aug 09 17:55 18:59
Landed
 Track >
Aug 02 18:00 19:04
Landed
 Track >
< All IAD Departures All CVG Arrivals >

United Airlines UA 4378 Washington to Cincinnati Flight Information

United Airlines Flight UA4378 connects Washington, United States to Cincinnati, United States, taking off from Washington Dulles International Airport IAD and landing at Cincinnati Northern Kentucky International Airport CVG.

How long is the UA4378 flight from Washington to Cincinnati?

The average flight time from Washington to Cincinnati is 1 hour and 2 minutes. The flight distance is 623 km / 387 miles and the average flight speed is 597 km/h / 371 mph.

What is the On-Time Performance (OTP) of United Airlines Flight UA4378 Washington to Cincinnati?

The Airportia On-Time Performance Rating for United Airlines Flight UA4378 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight UA4378 arriving at?

Flight UA4378 arrives at Cincinnati Northern Kentucky International Airport (CVG) Terminal 3.

When was the latest UA4378 flight?

The latest flight took off on Saturday, August 16th, 2025 with the flight status being Landed on 18:58.

How else can the flight UA4378 be referenced as?

This United Airlines flight can also be referenced as UAL4378, UA 4378, UAL 4378.

How often is flight UA4378 delayed?

On average, 33% of all UA4378 flights are delayed. The average delay is 3 minutes.

Can I get compensation for my delayed or cancelled UA4378 flight or baggage issues?

If your UA4378 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 UA4378 Flight Tracker above for more details.

UA4378 and Washington IAD to Cincinnati CVG Flights

Flight UA4378 is code-shared by 5 airlines using the flight numbers AC3767, AV2229, CM2582, LH7648, SN9049

Other flights departing from Washington IAD: UA4489, UA6101, UA2366, UA3416

Other flights arriving at Cincinnati CVG: G4399, DL5374, DL5655, K4615

All flights connecting Washington IAD to Cincinnati CVG.

UA4378 United Airlines Flight: Washington to Cincinnati Route Map

UA4378 United Airlines Flight Map: Washington to Cincinnati
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: Y92588 4Z11 AH6603 DX174 DX1 MW5470 TK5328 PT5898 TK4303 QE908
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.