American Airlines Flight 4457 Deals & Information (2025/2026)

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American Airlines Flight 4457 Route Deals From $270

The cheapest prices found with in the last 7 days for return flights were $499 and $270 for one-way flights to Martha's Vineyard for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jul 13 - Mon, Jul 20
PHL
Philadelphia Intl.
MVY
Martha's Vineyard
$499 Roundtrip, found 1 day ago
$499
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Jul 13 from Philadelphia Intl. to Martha's Vineyard, returning Mon, Jul 20, priced at $499 found 1 day ago