American Airlines Flight 78 Deals & Information (2025/2026)

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American Airlines Flight 78 Route Deals From $513

The cheapest prices found with in the last 7 days for return flights were $709 and $513 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Dec 30 - Tue, Jan 13
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$709 Roundtrip, found 4 hours ago
$709
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Dec 30 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Jan 13, priced at $709 found 4 hours ago
Tue, Feb 3 - Tue, Feb 10
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$717 Roundtrip, just found
$717
Roundtrip
just found
Select American Airlines flight, departing Tue, Feb 3 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Feb 10, priced at $717 just found
Wed, Dec 31 - Mon, Jan 12
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$722 Roundtrip, found 4 hours ago
$722
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Dec 31 from Dallas-Fort Worth Intl. to Heathrow, returning Mon, Jan 12, priced at $722 found 4 hours ago
Mon, Feb 2 - Mon, Feb 16
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$726 Roundtrip, just found
$726
Roundtrip
just found
Select American Airlines flight, departing Mon, Feb 2 from Dallas-Fort Worth Intl. to Heathrow, returning Mon, Feb 16, priced at $726 just found
Mon, Feb 2 - Mon, Feb 16
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$731 Roundtrip, just found
$731
Roundtrip
just found
Select American Airlines flight, departing Mon, Feb 2 from Dallas-Fort Worth Intl. to Heathrow, returning Mon, Feb 16, priced at $731 just found
Mon, Feb 16 - Tue, Feb 24
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$731 Roundtrip, found 17 hours ago
$731
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Mon, Feb 16 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Feb 24, priced at $731 found 17 hours ago
Tue, Feb 3 - Tue, Feb 10
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$740 Roundtrip, just found
$740
Roundtrip
just found
Select American Airlines flight, departing Tue, Feb 3 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Feb 10, priced at $740 just found