American Airlines Flight 4145 Deals & Information (2026/2027)

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American Airlines Flight 4145 Route Deals From $150

The cheapest prices found with in the last 7 days for return flights were $307 and $150 for one-way flights to Greenville-Spartanburg Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$307 Roundtrip, found 4 days ago
$307
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $307 found 4 days ago
Fri, Oct 16 - Sun, Oct 18
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$313 Roundtrip, found 4 days ago
$313
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Oct 16 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Oct 18, priced at $313 found 4 days ago
Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$316 Roundtrip, found 4 days ago
$316
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $316 found 4 days ago
Thu, Jan 28 - Sun, Jan 31
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$319 Roundtrip, just found
$319
Roundtrip
just found
Select American Airlines flight, departing Thu, Jan 28 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Jan 31, priced at $319 just found
Wed, Dec 23 - Tue, Dec 29
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$322 Roundtrip, found 4 hours ago
$322
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Dec 23 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Tue, Dec 29, priced at $322 found 4 hours ago
Thu, Jan 28 - Sun, Jan 31
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$329 Roundtrip, just found
$329
Roundtrip
just found
Select American Airlines flight, departing Thu, Jan 28 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Jan 31, priced at $329 just found
Wed, Dec 23 - Mon, Dec 28
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$332 Roundtrip, found 6 days ago
$332
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Dec 23 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Dec 28, priced at $332 found 6 days ago
Wed, Oct 14 - Sun, Oct 18
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$334 Roundtrip, found 17 hours ago
$334
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Oct 18, priced at $334 found 17 hours ago
Thu, Oct 15 - Sun, Oct 18
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$344 Roundtrip, found 16 hours ago
$344
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Thu, Oct 15 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Oct 18, priced at $344 found 16 hours ago
Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$346 Roundtrip, found 4 days ago
$346
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $346 found 4 days ago