American Airlines Flight AA3999 Deals & Information (2025/2026)

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American Airlines Flight 3999 Route Deals From

The cheapest prices found with in the last 7 days for return flights were $375 and for one-way flights to Garden City Regional for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 3 - Mon, Jul 7
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$375 Roundtrip, found 3 days ago
$375
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Jul 3 from Dallas-Fort Worth Intl. to Garden City Regional, returning Mon, Jul 7, priced at $375 found 3 days ago
Tue, Jul 1 - Sat, Jul 5
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$405 Roundtrip, found 3 days ago
$405
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Jul 1 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sat, Jul 5, priced at $405 found 3 days ago
Wed, Apr 16 - Wed, Apr 23
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$418 Roundtrip, found 3 days ago
$418
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Apr 16 from Dallas-Fort Worth Intl. to Garden City Regional, returning Wed, Apr 23, priced at $418 found 3 days ago
Tue, Apr 15 - Wed, Apr 23
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$420 Roundtrip, found 3 days ago
$420
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Apr 15 from Dallas-Fort Worth Intl. to Garden City Regional, returning Wed, Apr 23, priced at $420 found 3 days ago
Thu, Jul 3 - Sat, Jul 5
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$420 Roundtrip, found 3 days ago
$420
Roundtrip
found 3 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 $420 found 3 days ago
Wed, Apr 16 - Sat, Apr 19
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$431 Roundtrip, found 3 days ago
$431
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Apr 16 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sat, Apr 19, priced at $431 found 3 days ago
Sat, Apr 12 - Tue, Apr 15
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$433 Roundtrip, found 15 hours ago
$433
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Sat, Apr 12 from Dallas-Fort Worth Intl. to Garden City Regional, returning Tue, Apr 15, priced at $433 found 15 hours ago
Wed, Apr 16 - Thu, Apr 24
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$433 Roundtrip, found 3 days ago
$433
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Apr 16 from Dallas-Fort Worth Intl. to Garden City Regional, returning Thu, Apr 24, priced at $433 found 3 days ago
Tue, Apr 8 - Tue, Apr 15
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$435 Roundtrip, found 15 hours ago
$435
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Tue, Apr 8 from Dallas-Fort Worth Intl. to Garden City Regional, returning Tue, Apr 15, priced at $435 found 15 hours ago
Thu, Jul 3 - Fri, Jul 4
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$435 Roundtrip, found 3 days ago
$435
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Jul 3 from Dallas-Fort Worth Intl. to Garden City Regional, returning Fri, Jul 4, priced at $435 found 3 days ago
Fri, Apr 18 - Wed, Apr 23
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$437 Roundtrip, found 3 days ago
$437
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Apr 18 from Dallas-Fort Worth Intl. to Garden City Regional, returning Wed, Apr 23, priced at $437 found 3 days ago
Thu, Apr 17 - Wed, Apr 23
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$439 Roundtrip, found 3 days ago
$439
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Apr 17 from Dallas-Fort Worth Intl. to Garden City Regional, returning Wed, Apr 23, priced at $439 found 3 days ago
Sun, Apr 13 - Sat, Apr 19
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$450 Roundtrip, found 15 hours ago
$450
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Sun, Apr 13 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sat, Apr 19, priced at $450 found 15 hours ago
Sat, Apr 12 - Mon, Apr 14
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$452 Roundtrip, found 15 hours ago
$452
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Sat, Apr 12 from Dallas-Fort Worth Intl. to Garden City Regional, returning Mon, Apr 14, priced at $452 found 15 hours ago
Mon, Apr 7 - Tue, Apr 15
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$454 Roundtrip, found 15 hours ago
$454
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Mon, Apr 7 from Dallas-Fort Worth Intl. to Garden City Regional, returning Tue, Apr 15, priced at $454 found 15 hours ago
Tue, Jul 1 - Sun, Jul 6
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$460 Roundtrip, found 3 days ago
$460
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Jul 1 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sun, Jul 6, priced at $460 found 3 days ago
Sun, Apr 13 - Sun, Apr 20
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$469 Roundtrip, found 15 hours ago
$469
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Sun, Apr 13 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sun, Apr 20, priced at $469 found 15 hours ago
Thu, Apr 17 - Sun, Apr 20
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$471 Roundtrip, found 3 days ago
$471
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Apr 17 from Dallas-Fort Worth Intl. to Garden City Regional, returning Sun, Apr 20, priced at $471 found 3 days ago
Mon, Apr 7 - Mon, Apr 14
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$473 Roundtrip, found 15 hours ago
$473
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Mon, Apr 7 from Dallas-Fort Worth Intl. to Garden City Regional, returning Mon, Apr 14, priced at $473 found 15 hours ago
Thu, Jul 3 - Sun, Jul 6
DFW
Dallas-Fort Worth Intl.
GCK
Garden City Regional
$475 Roundtrip, found 3 days ago
$475
Roundtrip
found 3 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 $475 found 3 days ago