American Airlines Flight 20 Deals & Information (2026/2027)

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American Airlines Flight 20 Route Deals From $423

The cheapest prices found with in the last 7 days for return flights were $639 and $423 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Feb 3 - Tue, Feb 10
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$639 Roundtrip, just found
$639
Roundtrip
just found
Select American Airlines flight, departing Tue, Feb 3 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Feb 10, priced at $639 just found
Tue, Feb 3 - Tue, Feb 10
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$643 Roundtrip, just found
$643
Roundtrip
just found
Select American Airlines flight, departing Tue, Feb 3 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Feb 10, priced at $643 just found
Wed, Apr 29 - Thu, May 7
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$655 Roundtrip, found 2 hours ago
$655
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Apr 29 from Dallas-Fort Worth Intl. to Heathrow, returning Thu, May 7, priced at $655 found 2 hours ago
Wed, Apr 29 - Thu, May 7
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$660 Roundtrip, found 2 hours ago
$660
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Apr 29 from Dallas-Fort Worth Intl. to Heathrow, returning Thu, May 7, priced at $660 found 2 hours ago