American Airlines Flight 646 Deals & Information (2025/2026)

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American Airlines Flight 646 Route Deals From $140

The cheapest prices found with in the last 7 days for return flights were $331 and $140 for one-way flights to Ronald Reagan Washington National for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jan 21 - Sun, Jan 25
PHX
Sky Harbor Intl.
DCA
Ronald Reagan Washington National
$331 Roundtrip, found 17 hours ago
$331
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Wed, Jan 21 from Sky Harbor Intl. to Ronald Reagan Washington National, returning Sun, Jan 25, priced at $331 found 17 hours ago
Sat, Jan 31 - Tue, Feb 3
PHX
Sky Harbor Intl.
DCA
Ronald Reagan Washington National
$340 Roundtrip, found 1 day ago
$340
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Jan 31 from Sky Harbor Intl. to Ronald Reagan Washington National, returning Tue, Feb 3, priced at $340 found 1 day ago