| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 18 | ORD | BOS | 10:09 | 13:02 |
Landed
|
Track > |
| Aug 17 | ORD | BOS | 10:38 | 13:28 |
Landed Late
|
Track > |
| Aug 15 | ORD | BOS | 09:36 | 12:34 |
Landed
|
Track > |
| Aug 14 | ORD | BOS | 09:30 | 12:22 |
Landed
|
Track > |
| Aug 13 | ORD | BOS | 09:55 | 12:44 |
Landed
|
Track > |
| Aug 12 | ORD | BOS | 09:52 | 12:42 |
Landed
|
Track > |
| Aug 11 | ORD | BOS | 09:56 | 12:52 |
Landed
|
Track > |
| Aug 10 | ORD | BOS | 09:39 | 12:35 |
Landed
|
Track > |
| Aug 08 | ORD | BOS | 09:47 | 12:44 |
Landed
|
Track > |
| Aug 07 | ORD | BOS | 10:45 | 13:38 |
Landed Late
|
Track > |
United Airlines Flight UA721 connects Chicago, United States to Boston, United States, taking off from Chicago O'Hare International Airport ORD and landing at Boston Logan International Airport BOS.
How long is the UA721 flight from Chicago to Boston?
The average flight time from Chicago to Boston is 1 hour and 53 minutes. The flight distance is 1391 km / 864 miles and the average flight speed is 737 km/h / 458 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA721 Chicago to Boston?
The Airportia On-Time Performance Rating for United Airlines Flight UA721 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA721 arriving at?
Flight UA721 arrives at Boston Logan International Airport (BOS) Terminal B.
When was the latest UA721 flight?
The latest flight took off on Monday, August 18th, 2025 with the flight status being Landed on 13:02.
How else can the flight UA721 be referenced as?
This United Airlines flight can also be referenced as UAL721, UA0721, UA 721, UAL 721.
How often is flight UA721 delayed?
On average, 40% of all UA721 flights are delayed. The average delay is 25 minutes.
Can I get compensation for my delayed or cancelled UA721 flight or baggage issues?
If your UA721 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 UA721 Flight Tracker above for more details.
Flight UA721 is code-shared by 1 airline using the flight number NZ2083
Other flights departing from Chicago ORD: UA2254, UA1594, UA1741, OO5353
Other flights arriving at Boston BOS: UA642, DL5806, UA2723, TJ23
All flights connecting Chicago ORD to Boston BOS.
