| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 20 | ORD | STL | 07:13 | 08:03 |
Landed
|
Track > |
| May 19 | ORD | STL | 07:11 | 08:01 |
Landed
|
Track > |
| May 18 | ORD | STL | 08:03 | 09:14 |
Diverted
|
Track > |
| Claim > | ||||||
| May 17 | ORD | STL | 07:17 | 08:07 |
Landed
|
Track > |
| May 16 | ORD | STL | 07:20 | 08:18 |
Landed
|
Track > |
| May 15 | ORD | STL | 07:36 | 08:26 |
Landed
|
Track > |
| May 14 | ORD | STL | 07:37 | 08:20 |
Landed
|
Track > |
| May 13 | ORD | STL | 07:11 | 07:55 |
Landed
|
Track > |
| May 12 | ORD | STL | 07:07 | 07:50 |
Landed
|
Track > |
| May 11 | ORD | STL | 07:24 | 08:09 |
Landed
|
Track > |
American Airlines Flight AA3870 connects Chicago, United States to St. Louis, United States, taking off from Chicago O'Hare International Airport ORD and landing at St. Louis Lambert International Airport STL.
How long is the AA3870 flight from Chicago to St. Louis?
The average flight time from Chicago to St. Louis is 50 minutes. The flight distance is 415 km / 258 miles and the average flight speed is 505 km/h / 314 mph.
What is the On-Time Performance (OTP) of American Airlines Flight AA3870 Chicago to St. Louis?
The Airportia On-Time Performance Rating for American Airlines Flight AA3870 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight AA3870 arriving at?
Flight AA3870 arrives at St. Louis Lambert International Airport (STL) Terminal 1.
When was the latest AA3870 flight?
The latest flight took off on Wednesday, May 20th, 2026 with the flight status being Landed on 08:03.
How else can the flight AA3870 be referenced as?
This American Airlines flight can also be referenced as AAL3870, AA 3870, AAL 3870.
How often is flight AA3870 delayed?
On average, 10% of all AA3870 flights are delayed. The average delay is 47 minutes.
Can I get compensation for my delayed or cancelled AA3870 flight or baggage issues?
If your AA3870 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 AA3870 Flight Tracker above for more details.
Flight AA3870 is code-shared by 2 airlines using the flight numbers AS6492, BA4662
Other flights departing from Chicago ORD: AA386, UA1079, UA5996, OO5366
Other flights arriving at St. Louis STL: WN4401, WN3243, UA4459, AA2950
All flights connecting Chicago ORD to St. Louis STL.
