American Airlines Flight 3521 Deals & Information (2025/2026)

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American Airlines Flight 3521 Route Deals From $397

The cheapest prices found with in the last 7 days for return flights were $446 and $397 for one-way flights to Dallas-Fort Worth Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 4 - Tue, Dec 9
BIS
Bismarck Municipal
DFW
Dallas-Fort Worth Intl.
$446 Roundtrip, found 5 days ago
$446
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Dec 4 from Bismarck Municipal to Dallas-Fort Worth Intl., returning Tue, Dec 9, priced at $446 found 5 days ago
Thu, Dec 4 - Tue, Dec 9
BIS
Bismarck Municipal
DFW
Dallas-Fort Worth Intl.
$450 Roundtrip, found 5 days ago
$450
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Dec 4 from Bismarck Municipal to Dallas-Fort Worth Intl., returning Tue, Dec 9, priced at $450 found 5 days ago
Sat, Jan 3 - Fri, Jan 9
BIS
Bismarck Municipal
DFW
Dallas-Fort Worth Intl.
$463 Roundtrip, found 4 hours ago
$463
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sat, Jan 3 from Bismarck Municipal to Dallas-Fort Worth Intl., returning Fri, Jan 9, priced at $463 found 4 hours ago
Thu, Dec 4 - Tue, Dec 9
BIS
Bismarck Municipal
DFW
Dallas-Fort Worth Intl.
$473 Roundtrip, found 5 days ago
$473
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Dec 4 from Bismarck Municipal to Dallas-Fort Worth Intl., returning Tue, Dec 9, priced at $473 found 5 days ago
Thu, Dec 4 - Tue, Dec 9
BIS
Bismarck Municipal
DFW
Dallas-Fort Worth Intl.
$477 Roundtrip, found 5 days ago
$477
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Dec 4 from Bismarck Municipal to Dallas-Fort Worth Intl., returning Tue, Dec 9, priced at $477 found 5 days ago
Thu, Dec 4 - Tue, Dec 9
BIS
Bismarck Municipal
DFW
Dallas-Fort Worth Intl.
$489 Roundtrip, found 5 days ago
$489
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Dec 4 from Bismarck Municipal to Dallas-Fort Worth Intl., returning Tue, Dec 9, priced at $489 found 5 days ago
Mon, Dec 1 - Thu, Jan 1
BIS
Bismarck Municipal
DFW
Dallas-Fort Worth Intl.
$493 Roundtrip, found 5 days ago
$493
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Dec 1 from Bismarck Municipal to Dallas-Fort Worth Intl., returning Thu, Jan 1, priced at $493 found 5 days ago
Wed, Dec 24 - Sat, Dec 27
BIS
Bismarck Municipal
DFW
Dallas-Fort Worth Intl.
$513 Roundtrip, found 1 day ago
$513
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Dec 24 from Bismarck Municipal to Dallas-Fort Worth Intl., returning Sat, Dec 27, priced at $513 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.