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

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American Airlines Flight 3603 Route Deals From $134

The cheapest prices found with in the last 7 days for return flights were $195 and $134 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 16 - Sat, May 23
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$195 Roundtrip, found 5 days ago
$195
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, May 16 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, May 23, priced at $195 found 5 days ago
Fri, Sep 11 - Thu, Oct 22
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$209 Roundtrip, found 5 days ago
$209
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Sep 11 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Thu, Oct 22, priced at $209 found 5 days ago
Thu, Jan 8 - Sun, Jan 11
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$212 Roundtrip, found 6 days ago
$212
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Jan 8 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Jan 11, priced at $212 found 6 days ago
Sat, May 16 - Sat, May 23
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 Sat, May 16 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, May 23, priced at $227 found 5 days ago
Wed, Dec 31 - Sat, Jan 3
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$230 Roundtrip, found 12 hours ago
$230
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Wed, Dec 31 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, Jan 3, priced at $230 found 12 hours ago
Fri, Sep 11 - Thu, Oct 22
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$234 Roundtrip, found 5 days ago
$234
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Sep 11 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Thu, Oct 22, priced at $234 found 5 days ago
Thu, Jan 1 - Sun, Jan 4
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$237 Roundtrip, found 5 days ago
$237
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Jan 1 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Jan 4, priced at $237 found 5 days ago
Thu, Jan 8 - Sun, Jan 11
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 Thu, Jan 8 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sun, Jan 11, priced at $239 found 6 days ago
Fri, Jan 16 - Mon, Jan 19
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$239 Roundtrip, found 4 days ago
$239
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Jan 16 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Mon, Jan 19, priced at $239 found 4 days ago
Wed, Dec 31 - Sat, Jan 3
GSP
Greenville-Spartanburg Intl.
ORD
O'Hare Intl.
$247 Roundtrip, found 12 hours ago
$247
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Wed, Dec 31 from Greenville-Spartanburg Intl. to O'Hare Intl., returning Sat, Jan 3, priced at $247 found 12 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.