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 $255 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, Jul 14 - Tue, Jul 21
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$255 Roundtrip, found 6 days ago
$255
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Jul 14 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, Jul 21, priced at $255 found 6 days ago
Wed, Jun 17 - Tue, Jun 23
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$261 Roundtrip, found 1 day ago
$261
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Jun 17 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, Jun 23, priced at $261 found 1 day ago
Tue, Jul 14 - Tue, Jul 21
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$265 Roundtrip, found 6 days ago
$265
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Jul 14 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, Jul 21, priced at $265 found 6 days ago
Fri, May 29 - Sun, May 31
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$268 Roundtrip, found 5 days ago
$268
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, May 29 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, May 31, priced at $268 found 5 days ago
Fri, Jul 31 - Mon, Aug 3
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$269 Roundtrip, found 8 hours ago
$269
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Fri, Jul 31 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Mon, Aug 3, priced at $269 found 8 hours ago
Wed, Jun 17 - Tue, Jun 23
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$271 Roundtrip, found 1 day ago
$271
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Jun 17 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, Jun 23, priced at $271 found 1 day ago
Fri, May 15 - Mon, May 18
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$275 Roundtrip, found 2 days ago
$275
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, May 15 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Mon, May 18, priced at $275 found 2 days ago
Mon, Nov 23 - Tue, Dec 1
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$279 Roundtrip, found 7 hours ago
$279
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Mon, Nov 23 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, Dec 1, priced at $279 found 7 hours ago
Fri, May 15 - Mon, May 18
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$286 Roundtrip, found 2 days ago
$286
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, May 15 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Mon, May 18, priced at $286 found 2 days ago
Tue, May 12 - Tue, May 19
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$289 Roundtrip, found 2 days ago
$289
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, May 12 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Tue, May 19, priced at $289 found 2 days ago
Thu, May 7 - Thu, May 14
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$296 Roundtrip, found 3 days ago
$296
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, May 7 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Thu, May 14, priced at $296 found 3 days 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.