American Airlines Flight 3866 Deals & Information (2025/2026)

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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 $503 and for one-way flights to Killeen-Fort Hood Regional for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 30 - Tue, Oct 7
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$503 Roundtrip, found 10 hours ago
$503
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Sep 30 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Tue, Oct 7, priced at $503 found 10 hours ago
Fri, Oct 3 - Tue, Oct 7
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$513 Roundtrip, found 10 hours ago
$513
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Oct 3 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Tue, Oct 7, priced at $513 found 10 hours ago
Mon, Oct 6 - Sat, Oct 11
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$524 Roundtrip, found 10 hours ago
$524
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Oct 6 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sat, Oct 11, priced at $524 found 10 hours ago
Tue, Sep 30 - Thu, Oct 9
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$535 Roundtrip, found 10 hours ago
$535
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Sep 30 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Thu, Oct 9, priced at $535 found 10 hours ago
Tue, Sep 9 - Tue, Sep 16
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$537 Roundtrip, found 1 day ago
$537
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Sep 9 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Tue, Sep 16, priced at $537 found 1 day ago
Tue, Sep 30 - Sat, Oct 4
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$540 Roundtrip, found 10 hours ago
$540
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Sep 30 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sat, Oct 4, priced at $540 found 10 hours ago
Fri, Oct 3 - Thu, Oct 9
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$544 Roundtrip, found 10 hours ago
$544
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Oct 3 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Thu, Oct 9, priced at $544 found 10 hours ago
Fri, Oct 3 - Sat, Oct 4
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$549 Roundtrip, found 10 hours ago
$549
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Oct 3 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sat, Oct 4, priced at $549 found 10 hours ago
Mon, Oct 6 - Sun, Oct 12
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$555 Roundtrip, found 10 hours ago
$555
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Oct 6 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sun, Oct 12, priced at $555 found 10 hours ago
Tue, Sep 9 - Mon, Sep 15
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$557 Roundtrip, found 1 day ago
$557
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Sep 9 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Mon, Sep 15, priced at $557 found 1 day ago
Tue, Sep 30 - Sun, Oct 5
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$561 Roundtrip, found 10 hours ago
$561
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Sep 30 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sun, Oct 5, priced at $561 found 10 hours ago
Tue, Sep 23 - Mon, Sep 29
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$561 Roundtrip, found 5 days ago
$561
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Sep 23 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Mon, Sep 29, priced at $561 found 5 days ago
Fri, Oct 3 - Sun, Oct 5
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$569 Roundtrip, found 10 hours ago
$569
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, Oct 3 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sun, Oct 5, priced at $569 found 10 hours ago
Thu, Oct 2 - Sun, Oct 5
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$581 Roundtrip, found 10 hours ago
$581
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Oct 2 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Sun, Oct 5, priced at $581 found 10 hours ago
Mon, Sep 22 - Mon, Sep 29
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$581 Roundtrip, found 5 days ago
$581
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Sep 22 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Mon, Sep 29, priced at $581 found 5 days ago
Tue, Sep 9 - Wed, Sep 10
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$709 Roundtrip, found 1 day ago
$709
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Sep 9 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Wed, Sep 10, priced at $709 found 1 day ago
Tue, Sep 30 - Wed, Oct 1
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$714 Roundtrip, found 10 hours ago
$714
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Sep 30 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Wed, Oct 1, priced at $714 found 10 hours ago
Mon, Oct 6 - Tue, Oct 7
DFW
Dallas-Fort Worth Intl.
GRK
Killeen-Fort Hood Regional
$745 Roundtrip, found 10 hours ago
$745
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Oct 6 from Dallas-Fort Worth Intl. to Killeen-Fort Hood Regional, returning Tue, Oct 7, priced at $745 found 10 hours 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.