| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 17 | BOS | ORD | 12:21 | 13:34 |
Delayed
|
Track > |
| Oct 16 | BOS | ORD | 10:47 | 12:10 |
Landed
|
Track > |
| Oct 15 | BOS | ORD | 10:52 | 12:10 |
Landed
|
Track > |
| Oct 14 | BOS | ORD | 10:49 | 12:24 |
Landed
|
Track > |
| Oct 13 | BOS | ORD | 10:41 | 11:52 |
Landed
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Track > |
| Oct 12 | BOS | ORD | 10:49 | 11:55 |
Landed
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Track > |
| Oct 11 | BOS | ORD | 10:54 | 12:14 |
Landed
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| Oct 10 | BOS | ORD | 10:58 | 12:03 |
Landed
|
Track > |
| Oct 09 | BOS | ORD | 10:47 | 12:04 |
Landed
|
Track > |
| Oct 08 | BOS | ORD | 10:47 | 12:16 |
Landed
|
Track > |
United Airlines Flight UA503 connects Boston, United States to Chicago, United States, taking off from Boston Logan International Airport BOS and landing at Chicago O'Hare International Airport ORD.
How long is the UA503 flight from Boston to Chicago?
The average flight time from Boston to Chicago is 2 hours and 17 minutes. The flight distance is 1391 km / 864 miles and the average flight speed is 609 km/h / 378 mph.
How many UA503 flights are operated per week?
7 flights per week. The flight UA503 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of United Airlines Flight UA503 Boston to Chicago?
The Airportia On-Time Performance Rating for United Airlines Flight UA503 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA503 arriving at?
Flight UA503 arrives at Chicago O'Hare International Airport (ORD) Terminal 1.
When was the latest UA503 flight?
The latest flight took off on Saturday, October 17th, 2026 with the flight status being En-Route on 13:34.
How else can the flight UA503 be referenced as?
This United Airlines flight can also be referenced as UAL503, UA0503, UA 503, UAL 503.
How often is flight UA503 delayed?
On average, 10% of all UA503 flights are delayed. The average delay is 65 minutes.
Can I get compensation for my delayed or cancelled UA503 flight or baggage issues?
If your UA503 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 UA503 Flight Tracker above for more details.
Flight UA503 is code-shared by 1 airline using the flight number NZ2098
Other flights departing from Boston BOS: B61177, B6385, B6993, AC751
Other flights arriving at Chicago ORD: OO5575, OO4631, OO5839, MQ3595
All flights connecting Boston BOS to Chicago ORD.