American Airlines Flight 20 Deals & Information (2025/2026)

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American Airlines Flight 20 Route Deals From $414

The cheapest prices found with in the last 7 days for return flights were $605 and $414 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 6 - Tue, Aug 19
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$605 Roundtrip, found 3 hours ago
$605
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Aug 6 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Aug 19, priced at $605 found 3 hours ago
Wed, Aug 6 - Tue, Aug 19
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$609 Roundtrip, found 3 hours ago
$609
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Aug 6 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Aug 19, priced at $609 found 3 hours ago
Mon, Feb 9 - Tue, Feb 17
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$617 Roundtrip, found 2 hours ago
$617
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Mon, Feb 9 from Dallas-Fort Worth Intl. to Heathrow, returning Tue, Feb 17, priced at $617 found 2 hours ago
Tue, Oct 14 - Mon, Oct 20
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$617 Roundtrip, found 6 days ago
$617
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Oct 14 from Dallas-Fort Worth Intl. to Heathrow, returning Mon, Oct 20, priced at $617 found 6 days ago
Mon, Oct 6 - Mon, Oct 20
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$627 Roundtrip, found 10 hours ago
$627
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Oct 6 from Dallas-Fort Worth Intl. to Heathrow, returning Mon, Oct 20, priced at $627 found 10 hours ago
Mon, Oct 6 - Mon, Oct 20
DFW
Dallas-Fort Worth Intl.
LHR
Heathrow
$632 Roundtrip, found 10 hours ago
$632
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Oct 6 from Dallas-Fort Worth Intl. to Heathrow, returning Mon, Oct 20, priced at $632 found 10 hours ago