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

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American Airlines Flight 3603 Route Deals From $138

The cheapest prices found with in the last 7 days for return flights were $268 and $138 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, May 29 - Mon, Jun 1
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$268 Roundtrip, found 2 days ago
$268
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, May 29 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Mon, Jun 1, priced at $268 found 2 days ago
Fri, May 29 - Mon, Jun 1
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$278 Roundtrip, found 2 days ago
$278
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, May 29 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Mon, Jun 1, priced at $278 found 2 days ago
Fri, Jul 17 - Sat, Jul 18
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$292 Roundtrip, found 3 days ago
$292
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Jul 17 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, Jul 18, priced at $292 found 3 days ago
Sat, Aug 15 - Tue, Aug 18
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$296 Roundtrip, found 4 days ago
$296
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Aug 15 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, Aug 18, priced at $296 found 4 days ago
Sat, Jun 27 - Wed, Jul 1
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$299 Roundtrip, found 2 days ago
$299
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Jun 27 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Wed, Jul 1, priced at $299 found 2 days ago
Tue, Jul 14 - Sat, Jul 18
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$299 Roundtrip, found 4 days ago
$299
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Jul 14 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, Jul 18, priced at $299 found 4 days ago
Sat, Jun 27 - Wed, Jul 1
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$302 Roundtrip, found 2 days ago
$302
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Jun 27 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Wed, Jul 1, priced at $302 found 2 days ago
Sat, Aug 15 - Tue, Aug 18
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$309 Roundtrip, found 4 days ago
$309
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Aug 15 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, Aug 18, priced at $309 found 4 days ago
Thu, Jul 16 - Sun, Jul 19
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$314 Roundtrip, found 10 hours ago
$314
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Jul 16 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Jul 19, priced at $314 found 10 hours ago
Wed, Jun 24 - Mon, Jun 29
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$318 Roundtrip, found 1 day ago
$318
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 $318 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.