American Airlines Flight 3521 Deals & Information (2026/2027)

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American Airlines Flight 3521 Route Deals From $413

The cheapest prices found with in the last 7 days for return flights were $483 and $413 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, May 6 - Wed, May 19
BMI
Central Illinois Regional
ORD
O'Hare Intl.
$483 Roundtrip, found 1 day ago
$483
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, May 6 from Central Illinois Regional to O'Hare Intl., returning Wed, May 19, priced at $483 found 1 day ago
Thu, Oct 22 - Sat, Oct 24
BMI
Central Illinois Regional
ORD
O'Hare Intl.
$512 Roundtrip, found 1 day ago
$512
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 22 from Central Illinois Regional to O'Hare Intl., returning Sat, Oct 24, priced at $512 found 1 day ago
Thu, May 6 - Wed, May 19
BMI
Central Illinois Regional
ORD
O'Hare Intl.
$553 Roundtrip, found 1 day ago
$553
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, May 6 from Central Illinois Regional to O'Hare Intl., returning Wed, May 19, priced at $553 found 1 day ago
Thu, Oct 22 - Sat, Oct 24
BMI
Central Illinois Regional
ORD
O'Hare Intl.
$575 Roundtrip, found 1 day ago
$575
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 22 from Central Illinois Regional to O'Hare Intl., returning Sat, Oct 24, priced at $575 found 1 day ago
Thu, Oct 22 - Sat, Oct 24
BMI
Central Illinois Regional
ORD
O'Hare Intl.
$583 Roundtrip, found 1 day ago
$583
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 22 from Central Illinois Regional to O'Hare Intl., returning Sat, Oct 24, priced at $583 found 1 day ago
Thu, Oct 22 - Sat, Oct 24
BMI
Central Illinois Regional
ORD
O'Hare Intl.
$601 Roundtrip, found 1 day ago
$601
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 22 from Central Illinois Regional to O'Hare Intl., returning Sat, Oct 24, priced at $601 found 1 day ago
Thu, May 6 - Wed, May 19
BMI
Central Illinois Regional
ORD
O'Hare Intl.
$609 Roundtrip, found 1 day ago
$609
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, May 6 from Central Illinois Regional to O'Hare Intl., returning Wed, May 19, priced at $609 found 1 day ago
Thu, Oct 22 - Sat, Oct 24
BMI
Central Illinois Regional
ORD
O'Hare Intl.
$642 Roundtrip, found 1 day ago
$642
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 22 from Central Illinois Regional to O'Hare Intl., returning Sat, Oct 24, priced at $642 found 1 day ago
Thu, Oct 22 - Sat, Oct 24
BMI
Central Illinois Regional
ORD
O'Hare Intl.
$646 Roundtrip, found 1 day ago
$646
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 22 from Central Illinois Regional to O'Hare Intl., returning Sat, Oct 24, priced at $646 found 1 day ago
Thu, Oct 22 - Sat, Oct 24
BMI
Central Illinois Regional
ORD
O'Hare Intl.
$654 Roundtrip, found 1 day ago
$654
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Oct 22 from Central Illinois Regional to O'Hare Intl., returning Sat, Oct 24, priced at $654 found 1 day ago

Frequently asked questions

What route does flight number AA3521 take?
AA3521 is used on multiple routes, but the most common is between General Mariano Escobedo Intl. Airport (MTY) and Dallas-Fort Worth Intl. Airport (DFW). If you manage to score a direct flight, you'll arrive in about 1 hour and 44 minutes. Multi-stop flights can also use the same number, as can services on other routes.
How often is AA3521 on time?
American Airlines flight number AA3521 has multiple routes, but the most quickly booked is from Monterrey, Nuevo Leon Airport (MTY-General Mariano Escobedo Intl.) to Dallas, TX Airport (DFW-Dallas-Fort Worth Intl.) and lands according to schedule 76% of the time. If there is a delay, you can expect to wait for 24 minutes. This service has a 1.85-star rating.
What terminal does AA3521 fly out of?
If you're heading off from Monterrey, Nuevo Leon Airport (MTY-General Mariano Escobedo Intl.), there's a fair chance you'll board the plane from Terminal A. The most frequented route for AA3521 is Monterrey Intl. Airport to DFW, which is a nonstop flight.
What kind of plane is on flight number AA3521?
It's highly likely you'll travel aboard an Embraer 175 if you've booked a seat on flight AA3521 from Monterrey Intl. Airport to Dallas, TX Airport (DFW-Dallas-Fort Worth Intl.). It's the most commonly used type of plane on this popular route.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your AA3521 flight with Travelocity, please visit our Customer Service Portal.