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UA 1643 Chicago to Phoenix Flight Status

United Airlines Flight UA1643 from Chicago O'Hare International Airport ORD to Phoenix Sky Harbor International Airport PHX is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on September 24th, 2025.
Check the table below for UA1643's most recent flight history:

UA 1643 Flight Status & Schedule

Date Departure Arrival Status
Sep 24 10:14 11:23
Landed Late
Track >
Sep 23 10:40 11:54
Delayed
Track >
Sep 22 09:44 11:09
Landed
Track >
Sep 21 11:16 12:29
Delayed
Track >
Sep 20 09:40 10:53
Landed
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United Airlines UA 1643 Chicago to Phoenix Flight Information

United Airlines Flight UA1643 connects Chicago, United States to Phoenix, United States, taking off from Chicago O'Hare International Airport ORD and landing at Phoenix Sky Harbor International Airport PHX.

How long is the UA1643 flight from Chicago to Phoenix?

The average flight time from Chicago to Phoenix is 3 hours and 15 minutes. The flight distance is 2313 km / 1437 miles and the average flight speed is 710 km/h / 441 mph.

What is the On-Time Performance (OTP) of United Airlines Flight UA1643 Chicago to Phoenix?

The Airportia On-Time Performance Rating for United Airlines Flight UA1643 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight UA1643 arriving at?

Flight UA1643 arrives at Phoenix Sky Harbor International Airport (PHX) Terminal 3.

When was the latest UA1643 flight?

The latest flight took off on Wednesday, September 24th, 2025 with the flight status being Landed on 11:23.

How else can the flight UA1643 be referenced as?

This United Airlines flight can also be referenced as UAL1643, UA 1643, UAL 1643.

How often is flight UA1643 delayed?

On average, 70% of all UA1643 flights are delayed. The average delay is 36 minutes.

Can I get compensation for my delayed or cancelled UA1643 flight or baggage issues?

If your UA1643 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 UA1643 Flight Tracker above for more details.

UA1643 and Chicago ORD to Phoenix PHX Flights

Flight UA1643 is code-shared by 1 airline using the flight number AC5271

Other flights departing from Chicago ORD: UA2056, UA631, UA775, UA1215

Other flights arriving at Phoenix PHX: WN1328, WN2872, AA6342, AA4909

All flights connecting Chicago ORD to Phoenix PHX.

UA1643 United Airlines Flight: Chicago to Phoenix Route Map

UA1643 United Airlines Flight Map: Chicago to Phoenix
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.