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 6 days ago
$455
Roundtrip
found 6 days 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 6 days ago
Tue, May 19 - Sat, May 23
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$457 Roundtrip, found 6 days ago
$457
Roundtrip
found 6 days 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 6 days ago
Wed, May 20 - Sun, May 24
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$493 Roundtrip, found 6 days ago
$493
Roundtrip
found 6 days 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 6 days ago
Wed, Feb 4 - Sat, Feb 14
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$495 Roundtrip, found 4 days ago
$495
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Feb 4 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sat, Feb 14, priced at $495 found 4 days ago
Wed, Feb 4 - Tue, Feb 10
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$502 Roundtrip, found 4 days ago
$502
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Feb 4 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Tue, Feb 10, priced at $502 found 4 days ago
Wed, Feb 4 - Sat, Feb 7
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$509 Roundtrip, found 4 days ago
$509
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Feb 4 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sat, Feb 7, priced at $509 found 4 days ago
Wed, May 20 - Mon, May 25
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$513 Roundtrip, found 6 days ago
$513
Roundtrip
found 6 days 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 6 days ago
Thu, May 21 - Sat, May 23
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$516 Roundtrip, found 6 days ago
$516
Roundtrip
found 6 days 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 6 days ago
Fri, May 15 - Sun, May 24
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$534 Roundtrip, found 6 days ago
$534
Roundtrip
found 6 days 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 6 days ago
Wed, Feb 4 - Thu, Feb 12
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$537 Roundtrip, found 4 days ago
$537
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Feb 4 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Thu, Feb 12, priced at $537 found 4 days ago
Sun, Feb 8 - Sat, Feb 14
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$545 Roundtrip, found 4 days ago
$545
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Feb 8 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sat, Feb 14, priced at $545 found 4 days ago
Thu, Feb 5 - Tue, Feb 10
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$552 Roundtrip, found 4 days ago
$552
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Feb 5 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Tue, Feb 10, priced at $552 found 4 days ago
Thu, May 21 - Sun, May 24
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$554 Roundtrip, found 6 days ago
$554
Roundtrip
found 6 days 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 6 days ago
Thu, May 21 - Mon, May 25
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$574 Roundtrip, found 6 days ago
$574
Roundtrip
found 6 days 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 6 days ago
Sun, Feb 8 - Mon, Feb 16
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$579 Roundtrip, found 4 days ago
$579
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Feb 8 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Mon, Feb 16, priced at $579 found 4 days ago
Sun, Feb 8 - Sun, Feb 15
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$588 Roundtrip, found 4 days ago
$588
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Feb 8 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sun, Feb 15, priced at $588 found 4 days ago
Thu, Feb 5 - Thu, Feb 12
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$594 Roundtrip, found 4 days ago
$594
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Feb 5 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Thu, Feb 12, priced at $594 found 4 days ago
Tue, Feb 3 - Wed, Feb 4
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$786 Roundtrip, found 4 days ago
$786
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Feb 3 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Wed, Feb 4, priced at $786 found 4 days ago
Mon, Feb 9 - Tue, Feb 10
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$838 Roundtrip, found 4 days ago
$838
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Feb 9 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Tue, Feb 10, priced at $838 found 4 days 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.