American Airlines Flight 78 Deals & Information (2026/2027)

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American Airlines Flight 78 Route Deals From $379

The cheapest prices found with in the last 7 days for return flights were $952 and $379 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 21 - Thu, Nov 5
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$952 Roundtrip, found 5 days ago
$952
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Oct 21 from Dallas-Fort Worth Intl. to Heathrow, returning Thu, Nov 5, priced at $952 found 5 days ago
Tue, Sep 8 - Wed, Sep 16
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$952 Roundtrip, found 2 days ago
$952
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Sep 8 from Dallas-Fort Worth Intl. to Heathrow, returning Wed, Sep 16, priced at $952 found 2 days ago
Sun, Sep 6 - Tue, Sep 22
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$954 Roundtrip, found 4 hours ago
$954
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sun, Sep 6 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Sep 22, priced at $954 found 4 hours ago
Sun, Sep 6 - Tue, Sep 22
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$958 Roundtrip, found 4 hours ago
$958
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sun, Sep 6 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Sep 22, priced at $958 found 4 hours ago