American Airlines Flight 3999 Deals & Information (2025/2026)

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American Airlines Flight 3999 Route Deals From $399

The cheapest prices found with in the last 7 days for return flights were $345 and $399 for one-way flights to Garden City Regional for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jul 5 - Tue, Jul 8
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$345 Roundtrip, found 6 days ago
$345
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Jul 5 from Dallas-Fort Worth Intl. to Garden City Regional, returning Tue, Jul 8, priced at $345 found 6 days ago
Fri, Aug 29 - Sat, Aug 30
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$365 Roundtrip, found 1 day ago
$365
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Aug 29 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sat, Aug 30, priced at $365 found 1 day ago
Fri, Aug 29 - Sun, Aug 31
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$385 Roundtrip, found 1 day ago
$385
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Aug 29 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sun, Aug 31, priced at $385 found 1 day ago
Tue, Aug 26 - Sat, Aug 30
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$405 Roundtrip, found 1 day ago
$405
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Aug 26 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sat, Aug 30, priced at $405 found 1 day ago
Wed, Jul 2 - Sat, Jul 5
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$414 Roundtrip, found 6 days ago
$414
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jul 2 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sat, Jul 5, priced at $414 found 6 days ago
Sat, Jul 5 - Tue, Jul 8
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$418 Roundtrip, found 6 days ago
$418
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Jul 5 from Dallas-Fort Worth Intl. to Garden City Regional, returning Tue, Jul 8, priced at $418 found 6 days ago
Thu, Aug 28 - Sat, Aug 30
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$425 Roundtrip, found 1 day ago
$425
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Aug 28 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sat, Aug 30, priced at $425 found 1 day ago
Thu, Jul 3 - Sat, Jul 5
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$435 Roundtrip, found 6 days ago
$435
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Jul 3 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sat, Jul 5, priced at $435 found 6 days ago
Thu, Aug 28 - Sun, Aug 31
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$445 Roundtrip, found 1 day ago
$445
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Aug 28 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sun, Aug 31, priced at $445 found 1 day ago
Thu, Jul 3 - Sun, Jul 6
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$455 Roundtrip, found 6 days ago
$455
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Jul 3 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sun, Jul 6, priced at $455 found 6 days ago
Sat, Jul 5 - Tue, Jul 8
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$527 Roundtrip, found 6 days ago
$527
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Jul 5 from Dallas-Fort Worth Intl. to Garden City Regional, returning Tue, Jul 8, priced at $527 found 6 days ago