American Airlines Flight 3603 Deals & Information (2025/2026)

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American Airlines Flight 3603 Route Deals From $125

The cheapest prices found with in the last 7 days for return flights were $195 and $125 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jan 6 - Wed, Jan 7
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$195 Roundtrip, found 6 days ago
$195
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Jan 6 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Wed, Jan 7, priced at $195 found 6 days ago
Tue, Jan 6 - Wed, Jan 7
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$199 Roundtrip, found 6 days ago
$199
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Jan 6 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Wed, Jan 7, priced at $199 found 6 days ago
Sat, Feb 7 - Fri, Feb 13
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$202 Roundtrip, found 6 days ago
$202
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Feb 7 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Fri, Feb 13, priced at $202 found 6 days ago
Fri, Dec 5 - Sun, Dec 7
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$213 Roundtrip, found 18 hours ago
$213
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Fri, Dec 5 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Dec 7, priced at $213 found 18 hours ago
Tue, Dec 30 - Sat, Jan 3
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$222 Roundtrip, found 2 days ago
$222
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Dec 30 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, Jan 3, priced at $222 found 2 days ago
Wed, Dec 17 - Thu, Dec 18
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$227 Roundtrip, found 5 days ago
$227
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Dec 17 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Thu, Dec 18, priced at $227 found 5 days ago
Wed, Dec 3 - Sun, Dec 7
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$229 Roundtrip, found 3 days ago
$229
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Dec 3 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Dec 7, priced at $229 found 3 days ago
Sat, Feb 7 - Fri, Feb 13
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$232 Roundtrip, found 6 days ago
$232
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Feb 7 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Fri, Feb 13, priced at $232 found 6 days ago
Sat, Feb 7 - Fri, Feb 13
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$239 Roundtrip, found 6 days ago
$239
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Feb 7 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Fri, Feb 13, priced at $239 found 6 days ago
Tue, Dec 9 - Mon, Jan 5
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$242 Roundtrip, found 6 days ago
$242
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Dec 9 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Mon, Jan 5, priced at $242 found 6 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.