American Airlines Flight 3721 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

American Airlines Flight 3721 Route Deals From $204

The cheapest prices found with in the last 7 days for return flights were $223 and $204 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 11 - Mon, Dec 15
ATW
Appleton Intl.
ORD
O'Hare Intl.
$223 Roundtrip, found 4 days ago
$223
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Dec 11 from Appleton Intl. to O'Hare Intl., returning Mon, Dec 15, priced at $223 found 4 days ago
Tue, Sep 9 - Tue, Sep 23
ATW
Appleton Intl.
ORD
O'Hare Intl.
$228 Roundtrip, found 1 day ago
$228
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Sep 9 from Appleton Intl. to O'Hare Intl., returning Tue, Sep 23, priced at $228 found 1 day ago
Thu, Sep 4 - Sun, Sep 7
ATW
Appleton Intl.
ORD
O'Hare Intl.
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Sep 4 from Appleton Intl. to O'Hare Intl., returning Sun, Sep 7, priced at $239 found 1 day ago
Fri, Dec 12 - Tue, Dec 16
ATW
Appleton Intl.
ORD
O'Hare Intl.
$241 Roundtrip, found 4 days ago
$241
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Dec 12 from Appleton Intl. to O'Hare Intl., returning Tue, Dec 16, priced at $241 found 4 days ago
Tue, Sep 9 - Tue, Sep 23
ATW
Appleton Intl.
ORD
O'Hare Intl.
$253 Roundtrip, found 1 day ago
$253
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Sep 9 from Appleton Intl. to O'Hare Intl., returning Tue, Sep 23, priced at $253 found 1 day ago
Fri, Aug 22 - Sat, Aug 23
ATW
Appleton Intl.
ORD
O'Hare Intl.
$254 Roundtrip, found 5 days ago
$254
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Aug 22 from Appleton Intl. to O'Hare Intl., returning Sat, Aug 23, priced at $254 found 5 days ago
Mon, Aug 18 - Sat, Aug 23
ATW
Appleton Intl.
ORD
O'Hare Intl.
$259 Roundtrip, found 1 hour ago
$259
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Mon, Aug 18 from Appleton Intl. to O'Hare Intl., returning Sat, Aug 23, priced at $259 found 1 hour ago
Tue, Sep 9 - Tue, Sep 23
ATW
Appleton Intl.
ORD
O'Hare Intl.
$262 Roundtrip, found 1 day ago
$262
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Sep 9 from Appleton Intl. to O'Hare Intl., returning Tue, Sep 23, priced at $262 found 1 day ago
Sun, Aug 17 - Sat, Aug 23
ATW
Appleton Intl.
ORD
O'Hare Intl.
$264 Roundtrip, found 1 hour ago
$264
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sun, Aug 17 from Appleton Intl. to O'Hare Intl., returning Sat, Aug 23, priced at $264 found 1 hour ago
Fri, Aug 15 - Sun, Aug 17
ATW
Appleton Intl.
ORD
O'Hare Intl.
$266 Roundtrip, found 1 hour ago
$266
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Fri, Aug 15 from Appleton Intl. to O'Hare Intl., returning Sun, Aug 17, priced at $266 found 1 hour ago

Frequently asked questions

What route does flight number AA3721 take?
Flight number AA3721 takes roughly 3 hours and 59 minutes to fly non-stop from DFW to YYC Calgary International Airport. We all know there's magic in the destination, but half the fun is in the journey!
What kind of plane is on flight number AA3721?
There's a good chance you'll be jumping on board an Embraer 175 if you're on flight number AA3721. This flight usually takes off from DFW and lands at Calgary, AB Airport (YYC-Calgary Intl.).
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 AA3721 flight with Travelocity, please visit our Customer Service Portal.