American Airlines Flight AA4637 Deals & Information (2025/2026)

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American Airlines Flight 4637 Route Deals From $135

The cheapest prices found with in the last 7 days for return flights were $255 and $135 for one-way flights to Indianapolis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 12 - Wed, Aug 13
PHL
Philadelphia Intl.
IND
Indianapolis Intl.
$255 Roundtrip, found 5 days ago
$255
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Aug 12 from Philadelphia Intl. to Indianapolis Intl., returning Wed, Aug 13, priced at $255 found 5 days ago
Tue, Jul 22 - Tue, Jul 29
PHL
Philadelphia Intl.
IND
Indianapolis Intl.
$395 Roundtrip, found 16 hours ago
$395
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Tue, Jul 22 from Philadelphia Intl. to Indianapolis Intl., returning Tue, Jul 29, priced at $395 found 16 hours ago