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

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 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 2 days ago
$195
Roundtrip
found 2 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 2 days ago
Wed, Mar 25 - Sat, Mar 28
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$202 Roundtrip, found 3 days ago
$202
Roundtrip
found 3 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 3 days ago
Sat, Apr 18 - Wed, Apr 22
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$209 Roundtrip, found 4 hours ago
$209
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sat, Apr 18 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Wed, Apr 22, priced at $209 found 4 hours ago
Tue, May 12 - Wed, May 13
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$239 Roundtrip, found 2 days ago
$239
Roundtrip
found 2 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 2 days ago
Sat, Apr 18 - Wed, Apr 22
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$250 Roundtrip, found 4 hours ago
$250
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sat, Apr 18 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Wed, Apr 22, priced at $250 found 4 hours ago
Fri, Apr 3 - Sun, Apr 5
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$256 Roundtrip, found 5 hours ago
$256
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Fri, Apr 3 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Apr 5, priced at $256 found 5 hours ago
Sat, Feb 7 - Sat, Feb 14
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$257 Roundtrip, found 3 hours ago
$257
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sat, Feb 7 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, Feb 14, priced at $257 found 3 hours ago
Sat, Apr 18 - Wed, Apr 22
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$259 Roundtrip, found 4 hours ago
$259
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sat, Apr 18 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Wed, Apr 22, priced at $259 found 4 hours 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.