United Airlines UA3640 Flight Status : Live Tracking & Updates

Domestic flight United Airlines UA3640 takes off from Buffalo (BUF) United States to Chicago (ORD) United States. It's operated by United Airlines. The plane leaves Buffalo Niagara International Airport at 05:50 06 May 2026 America/New_York. The flight is expected to land at O'Hare International Airport at 07:30 06 May 2026 America/Chicago. The flight will last about 1 hours 37 minutes.

Current status of UA3640 is Arrived On time

UA3640 - UAL3640 United Airlines (UA)
BUF Buffalo United States
Flight BUF to ORD
ORD Chicago United States
Arrived On time
Departure Buffalo Niagara International Airport
IATA: BUFICAO: KBUF
Scheduled 05:50 06 May 2026
Actual 05:40 06 May 2026
None A11
Arrival O'Hare International Airport
IATA: ORDICAO: KORD
Scheduled 07:30 06 May 2026
Actual 07:17 06 May 2026
None A6E
UA3640 Detail
  • Type: Domestic Flight
  • Code Shares: AC 4406, CM 2672
  • Flight Duration: 1 hours 37 minutes
  • Flight Distance: 762 kms / 473 miles
Airline
  • United Airlines
  • IATA: UA
  • ICAO: UAL
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 69
  • Freight capacity: 6.9 tons
  • Passenger classes: First Class, Economy, Business Class, Shuttle
More Detail
  • Aircraft: Embraer 175
  • Callsign: F-KCEF3
  • Departure Timezone: America/New_York
  • Arrival Timezone: America/Chicago
  • Current Time in Buffalo: Wednesday 2026-05-06 08:30 AM
  • Current Time in Chicago: Wednesday 2026-05-06 07:30 AM

United Airlines UA3640 Flight Statistics

United Airlines
United Airlines
FLIGHT NO UA3640
AIRPLANE Embraer 175
ON TIME 12
DELAYED 2
CANCELLED 0
ON TIME 21
DELAYED 4
CANCELLED 0
ON TIME 36
DELAYED 6
CANCELLED 0
ON TIME 65
DELAYED 7
CANCELLED 0
Last 14 days flight data
14 30 60 90
On Time Rate

United Airlines UA3640 Flight Schedule and Histories

Time Departure Arrival Actual departure Actual arrival
Wed 29 Apr
Scheduled On time
Buffalo (BUF) 2026-04-29T10:55
Chicago (ORD) 2026-04-29T12:00
Mon 27 Apr
Arrived On time
Buffalo (BUF) 2026-04-27T05:00
Chicago (ORD) 2026-04-27T06:12
2026-04-27T04:58
2026-04-27T05:46
Sat 18 Apr
Arrived On time
Buffalo (BUF) 2026-04-18T05:00
Chicago (ORD) 2026-04-18T06:12
2026-04-18T04:59
2026-04-18T05:53
Mon 13 Apr
Scheduled On time
Buffalo (BUF) 2026-04-13T05:00
Chicago (ORD) 2026-04-13T06:12
Sun 12 Apr
Arrived On time
Buffalo (BUF) 2026-04-12T10:43
Chicago (ORD) 2026-04-12T11:55
2026-04-12T10:37
2026-04-12T11:33
Tue 24 Mar
Scheduled On time
Buffalo (BUF) 2026-03-24T21:00
Chicago (ORD) 2026-03-24T22:04
Wed 18 Mar
Departed On time
Buffalo (BUF) 2026-03-18T21:00
Chicago (ORD) 2026-03-18T22:04
2026-03-18T20:50
Thu 05 Mar
Scheduled On time
Buffalo (BUF) 2026-03-05T21:00
Chicago (ORD) 2026-03-05T22:04
Wed 04 Mar
Arrived On time
Buffalo (BUF) 2026-03-04T21:00
Chicago (ORD) 2026-03-04T22:04
2026-03-04T20:52
2026-03-04T22:07
Tue 03 Mar
Arrived On time
Buffalo (BUF) 2026-03-03T21:00
Chicago (ORD) 2026-03-03T22:04
2026-03-03T20:46
2026-03-03T21:44

Flight routes similar to United Airlines UA3640

Airline Flight no Departure Arrival
United Airlines UA2032
United Airlines 		06/05/2026
17:50 		1 hours 57 minutes
18:47
Air New Zealand NZ2116
Air New Zealand 		06/05/2026
13:57 		1 hours 58 minutes
14:55
Gulf Air GF6789
Gulf Air 		06/05/2026
18:00 		2 hours 1 minutes
19:17
Alaska Airlines AS6809
Alaska Airlines 		06/05/2026
06:00 		2 hours 9 minutes
07:09
British Airways BA1674
British Airways 		06/05/2026
18:00 		2 hours 1 minutes
19:17
ANA NH7401
ANA 		06/05/2026
07:00 		1 hours 58 minutes
07:58
Copa Airlines CM1080
Copa Airlines 		06/05/2026
11:02 		1 hours 58 minutes
12:00
Qatar Airways QR7693
Qatar Airways 		06/05/2026
15:01 		2 hours 6 minutes
16:07

United Airlines Flight UA3640 FAQs

What is the scheduled flight duration for United Airlines UA3640 flight?

On average, nonstop flight takes 1 hour(s) 37 minutes, with the flight distance of 762 km (473 miles).

What is the current status of United Airlines UA3640 flight?

The current status of flight United Airlines UA3640 is Arrived On time.

What type of aircraft is used for the United Airlines UA3640 flight?

All United Airlines UA3640 flights are operated using Embraer 175 aircraft.

How many United Airlines UA3640 flights are operated a week?

7 flights per week. The Flight United Airlines UA3640 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .