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

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American Airlines Flight 3603 Route Deals From $128

The cheapest prices found with in the last 7 days for return flights were $261 and $128 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 2 - Sat, Jun 6
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$261 Roundtrip, found 4 days ago
$261
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Jun 2 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, Jun 6, priced at $261 found 4 days ago
Wed, Jun 24 - Mon, Jun 29
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$268 Roundtrip, found 1 day ago
$268
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Jun 24 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Mon, Jun 29, priced at $268 found 1 day ago
Tue, Jun 2 - Sat, Jun 6
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$271 Roundtrip, found 4 days ago
$271
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Jun 2 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, Jun 6, priced at $271 found 4 days ago
Thu, Jun 11 - Sun, Jun 14
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$275 Roundtrip, found 6 hours ago
$275
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Jun 11 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Jun 14, priced at $275 found 6 hours ago
Wed, Jun 24 - Mon, Jun 29
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$278 Roundtrip, found 1 day ago
$278
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Jun 24 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Mon, Jun 29, priced at $278 found 1 day ago
Thu, Jun 11 - Sun, Jun 14
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$286 Roundtrip, found 6 hours ago
$286
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Jun 11 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Jun 14, priced at $286 found 6 hours ago
Sat, May 16 - Sat, May 23
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$296 Roundtrip, found 9 hours ago
$296
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Sat, May 16 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, May 23, priced at $296 found 9 hours ago
Tue, Jun 2 - Sat, Jun 6
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$301 Roundtrip, found 4 days ago
$301
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Jun 2 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, Jun 6, priced at $301 found 4 days ago
Wed, Jun 17 - Sun, Jun 21
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$305 Roundtrip, found 2 days ago
$305
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Jun 17 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Jun 21, priced at $305 found 2 days ago
Sat, May 16 - Sat, May 23
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$306 Roundtrip, found 9 hours ago
$306
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Sat, May 16 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, May 23, priced at $306 found 9 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.