American Airlines Flight 3603 Deals & Information (2026/2027)

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American Airlines Flight 3603 Route Deals From $100

The cheapest prices found with in the last 7 days for return flights were $195 and $100 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 12 - Wed, May 13
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$195 Roundtrip, found 4 days ago
$195
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, May 12 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Wed, May 13, priced at $195 found 4 days ago
Wed, Mar 25 - Sat, Mar 28
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$202 Roundtrip, found 5 days ago
$202
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Mar 25 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, Mar 28, priced at $202 found 5 days ago
Sat, Apr 4 - Sun, Apr 5
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$209 Roundtrip, found 8 hours ago
$209
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Sat, Apr 4 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Apr 5, priced at $209 found 8 hours ago
Fri, Apr 3 - Tue, Apr 7
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$211 Roundtrip, found 2 hours ago
$211
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Apr 3 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, Apr 7, priced at $211 found 2 hours ago
Sat, Feb 21 - Thu, Mar 12
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$214 Roundtrip, found 5 hours ago
$214
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Sat, Feb 21 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Thu, Mar 12, priced at $214 found 5 hours ago
Fri, Apr 3 - Tue, Apr 7
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$226 Roundtrip, found 2 hours ago
$226
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Apr 3 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, Apr 7, priced at $226 found 2 hours ago
Fri, Apr 3 - Tue, Apr 7
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$236 Roundtrip, found 2 hours ago
$236
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Apr 3 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, Apr 7, priced at $236 found 2 hours ago
Tue, May 12 - Wed, May 13
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$239 Roundtrip, found 4 days ago
$239
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, May 12 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Wed, May 13, priced at $239 found 4 days ago
Sun, Feb 22 - Fri, Mar 13
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$240 Roundtrip, found 2 days ago
$240
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Feb 22 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Fri, Mar 13, priced at $240 found 2 days ago
Sat, Apr 4 - Wed, Apr 8
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Apr 4 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Wed, Apr 8, priced at $250 found 1 day ago

Frequently asked questions

What route does flight number AA3603 take?
AA3603 flies direct between CVG Airport and ORD in 1 hour and 31 minutes. It can sometimes be used on other routes though, some of which could be multi-stop flights. Keep an eye out for this when locking in your seat to avoid any confusion.
What kind of plane is on flight number AA3603?
It's more than likely you'll be hopping on board an Embraer RJ145 if you're taking flight AA3603 from Cincinnati - Northern Kentucky Intl. Airport (CVG) to O'Hare Intl. Airport (ORD). It's the most commonly used aircraft model 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 AA3603 flight with Travelocity, please visit our Customer Service Portal.