American Airlines Flight 3866 Deals & Information (2026/2027)

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American Airlines Flight 3866 Route Deals From

The cheapest prices found with in the last 7 days for return flights were $455 and for one-way flights to Killeen-Fort Hood Regional for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, May 20 - Sat, May 23
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$455 Roundtrip, found 1 day ago
$455
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, May 20 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sat, May 23, priced at $455 found 1 day ago
Tue, May 19 - Sat, May 23
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$457 Roundtrip, found 1 day ago
$457
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, May 19 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sat, May 23, priced at $457 found 1 day ago
Wed, May 20 - Sun, May 24
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$493 Roundtrip, found 1 day ago
$493
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, May 20 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sun, May 24, priced at $493 found 1 day ago
Fri, May 15 - Sat, May 23
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$496 Roundtrip, found 1 day ago
$496
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, May 15 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sat, May 23, priced at $496 found 1 day ago
Wed, May 20 - Mon, May 25
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$513 Roundtrip, found 1 day ago
$513
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, May 20 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Mon, May 25, priced at $513 found 1 day ago
Thu, May 21 - Sat, May 23
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$516 Roundtrip, found 1 day ago
$516
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, May 21 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sat, May 23, priced at $516 found 1 day ago
Fri, May 15 - Sun, May 24
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$534 Roundtrip, found 1 day ago
$534
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, May 15 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sun, May 24, priced at $534 found 1 day ago
Thu, May 21 - Sun, May 24
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$554 Roundtrip, found 1 day ago
$554
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, May 21 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sun, May 24, priced at $554 found 1 day ago
Thu, May 21 - Mon, May 25
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$574 Roundtrip, found 1 day ago
$574
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, May 21 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Mon, May 25, priced at $574 found 1 day ago
Wed, May 20 - Fri, May 22
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$843 Roundtrip, found 1 day ago
$843
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, May 20 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Fri, May 22, priced at $843 found 1 day ago
Tue, May 19 - Fri, May 22
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$847 Roundtrip, found 1 day ago
$847
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, May 19 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Fri, May 22, priced at $847 found 1 day ago
Mon, May 18 - Fri, May 22
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$899 Roundtrip, found 1 day ago
$899
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, May 18 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Fri, May 22, priced at $899 found 1 day ago
Thu, May 21 - Fri, May 22
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$920 Roundtrip, found 1 day ago
$920
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, May 21 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Fri, May 22, priced at $920 found 1 day ago

Frequently asked questions

What route does flight number AA3866 take?
AA3866 serves multiple routes, but the most common is between DFW and Killeen, TX Airport (GRK-Killeen-Fort Hood Regional). If you're lucky enough to score a direct flight, you'll arrive in 57 minutes. Multi-stop flights can also travel under this number, as can services on other routes.
What kind of plane is on flight number AA3866?
It's more than likely you'll be traveling aboard an Embraer 175 if you've booked a ticket on flight AA3866 from Dallas-Fort Worth Intl. Airport (DFW) to Killeen, TX Airport (GRK-Killeen-Fort Hood Regional). This is the most commonly used aircraft on this particular 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 AA3866 flight with Travelocity, please visit our Customer Service Portal.