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UA 3440 Buffalo to Chicago Flight Status

United Airlines Flight UA3440 from Buffalo Niagara International Airport BUF to Chicago O'Hare International Airport ORD is not scheduled for today June 3rd, 2026.
The last time the flight was scheduled was on August 17th, 2025.
Check the table below for UA3440's most recent flight history:

UA 3440 Flight Status & Schedule

Date Departure Arrival Status
Aug 17 11:07 11:28
Landed
Track >
Aug 16 11:07 11:24
Landed
Track >
Aug 10 11:14 11:25
Landed
Track >
Aug 09 10:52 11:02
Landed
Track >
Aug 03 11:06 11:21
Landed
Track >

United Airlines UA 3440 Buffalo to Chicago Flight Information

United Airlines Flight UA3440 connects Buffalo, United States to Chicago, United States, taking off from Buffalo Niagara International Airport BUF and landing at Chicago O'Hare International Airport ORD.

How long is the UA3440 flight from Buffalo to Chicago?

The average flight time from Buffalo to Chicago is 1 hour and 16 minutes. The flight distance is 760 km / 472 miles and the average flight speed is 597 km/h / 371 mph.

What is the On-Time Performance (OTP) of United Airlines Flight UA3440 Buffalo to Chicago?

The Airportia On-Time Performance Rating for United Airlines Flight UA3440 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight UA3440 arriving at?

Flight UA3440 arrives at Chicago O'Hare International Airport (ORD) Terminal 1.

When was the latest UA3440 flight?

The latest flight took off on Sunday, August 17th, 2025 with the flight status being Landed on 11:28.

How else can the flight UA3440 be referenced as?

This United Airlines flight can also be referenced as UAL3440, UA 3440, UAL 3440.

How often is flight UA3440 delayed?

On average, 0% of all UA3440 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled UA3440 flight or baggage issues?

If your UA3440 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 UA3440 Flight Tracker above for more details.

UA3440 and Buffalo BUF to Chicago ORD Flights

Flight UA3440 is code-shared by 2 airlines using the flight numbers AC5215, NZ2112

Other flights departing from Buffalo BUF: AA9950, UA4242, SY1058, WN1459

Other flights arriving at Chicago ORD: NK2125, UA2635, UA1407, UA4716

All flights connecting Buffalo BUF to Chicago ORD.

UA3440 United Airlines Flight: Buffalo to Chicago Route Map

UA3440 United Airlines Flight Map: Buffalo to Chicago
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.