American Airlines Flight 3623 Deals & Information (2026/2027)

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American Airlines Flight 3623 Route Deals From $139

The cheapest prices found with in the last 7 days for return flights were $194 and $139 for one-way flights to Sioux Falls Regional for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Mar 17 - Sat, Mar 21
ORD
O'Hare Intl.
FSD
Sioux Falls Regional
$194 Roundtrip, found 2 days ago
$194
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Mar 17 from O'Hare Intl. to Sioux Falls Regional, returning Sat, Mar 21, priced at $194 found 2 days ago
Fri, Mar 27 - Sat, Mar 28
ORD
O'Hare Intl.
FSD
Sioux Falls Regional
$196 Roundtrip, found 1 day ago
$196
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Mar 27 from O'Hare Intl. to Sioux Falls Regional, returning Sat, Mar 28, priced at $196 found 1 day ago
Wed, Feb 25 - Mon, Mar 2
ORD
O'Hare Intl.
FSD
Sioux Falls Regional
$249 Roundtrip, found 5 days ago
$249
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Feb 25 from O'Hare Intl. to Sioux Falls Regional, returning Mon, Mar 2, priced at $249 found 5 days ago
Tue, Mar 17 - Sat, Mar 21
ORD
O'Hare Intl.
FSD
Sioux Falls Regional
$255 Roundtrip, found 2 days ago
$255
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Mar 17 from O'Hare Intl. to Sioux Falls Regional, returning Sat, Mar 21, priced at $255 found 2 days ago
Fri, Mar 27 - Sat, Mar 28
ORD
O'Hare Intl.
FSD
Sioux Falls Regional
$258 Roundtrip, found 1 day ago
$258
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Mar 27 from O'Hare Intl. to Sioux Falls Regional, returning Sat, Mar 28, priced at $258 found 1 day ago
Thu, Feb 26 - Thu, Mar 5
ORD
O'Hare Intl.
FSD
Sioux Falls Regional
$268 Roundtrip, found 1 day ago
$268
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Feb 26 from O'Hare Intl. to Sioux Falls Regional, returning Thu, Mar 5, priced at $268 found 1 day ago
Tue, Mar 17 - Sat, Mar 21
ORD
O'Hare Intl.
FSD
Sioux Falls Regional
$280 Roundtrip, found 2 days ago
$280
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Mar 17 from O'Hare Intl. to Sioux Falls Regional, returning Sat, Mar 21, priced at $280 found 2 days ago
Fri, Feb 27 - Mon, Mar 2
ORD
O'Hare Intl.
FSD
Sioux Falls Regional
$296 Roundtrip, found 1 day ago
$296
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Feb 27 from O'Hare Intl. to Sioux Falls Regional, returning Mon, Mar 2, priced at $296 found 1 day ago
Thu, Feb 26 - Thu, Mar 5
ORD
O'Hare Intl.
FSD
Sioux Falls Regional
$300 Roundtrip, found 1 day ago
$300
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Feb 26 from O'Hare Intl. to Sioux Falls Regional, returning Thu, Mar 5, priced at $300 found 1 day ago
Mon, May 18 - Tue, May 19
ORD
O'Hare Intl.
FSD
Sioux Falls Regional
$320 Roundtrip, found 18 hours ago
$320
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Mon, May 18 from O'Hare Intl. to Sioux Falls Regional, returning Tue, May 19, priced at $320 found 18 hours ago

Frequently asked questions

What route does flight number AA3623 take?
AA3623 is used on multiple routes, but the most common is between La Crosse Regional Airport and ORD. If your flight goes direct, you'll touch down in about 1 hour and 20 minutes. Multi-stop flights can also operate under the same number, as can flights on other routes.
What kind of plane is on flight number AA3623?
If you're on flight AA3623 from La Crosse, WI Airport (LSE-La Crosse Municipal) to O'Hare Airport, you'll likely be jetting off on an Embraer RJ145. Flight AA3623 serves more than one route, but this is the most popular one.
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 AA3623 flight with Travelocity, please visit our Customer Service Portal.