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

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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 23 hours ago
$228
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Tue, Sep 9 from Appleton Intl. to O'Hare Intl., returning Tue, Sep 23, priced at $228 found 23 hours ago
Thu, Sep 4 - Sun, Sep 7
ATW
Appleton Intl.
ORD
O'Hare Intl.
$239 Roundtrip, found 21 hours ago
$239
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Thu, Sep 4 from Appleton Intl. to O'Hare Intl., returning Sun, Sep 7, priced at $239 found 21 hours 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
Mon, Aug 18 - Sat, Aug 23
ATW
Appleton Intl.
ORD
O'Hare Intl.
$249 Roundtrip, found 5 days ago
$249
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Aug 18 from Appleton Intl. to O'Hare Intl., returning Sat, Aug 23, priced at $249 found 5 days ago
Tue, Sep 9 - Tue, Sep 23
ATW
Appleton Intl.
ORD
O'Hare Intl.
$253 Roundtrip, found 23 hours ago
$253
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Tue, Sep 9 from Appleton Intl. to O'Hare Intl., returning Tue, Sep 23, priced at $253 found 23 hours 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
Tue, Sep 9 - Tue, Sep 23
ATW
Appleton Intl.
ORD
O'Hare Intl.
$262 Roundtrip, found 23 hours ago
$262
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Tue, Sep 9 from Appleton Intl. to O'Hare Intl., returning Tue, Sep 23, priced at $262 found 23 hours ago
Tue, Sep 9 - Tue, Sep 23
ATW
Appleton Intl.
ORD
O'Hare Intl.
$273 Roundtrip, found 23 hours ago
$273
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Tue, Sep 9 from Appleton Intl. to O'Hare Intl., returning Tue, Sep 23, priced at $273 found 23 hours 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.