American Airlines Flight 5542 Deals & Information (2025/2026)

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American Airlines Flight 5542 Route Deals From $150

The cheapest prices found with in the last 7 days for return flights were $260 and $150 for one-way flights to Philadelphia Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Feb 14 - Wed, Feb 18
STL
Lambert-St. Louis Intl.
PHL
Philadelphia Intl.
$260 Roundtrip, found 6 hours ago
$260
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Feb 14 from Lambert-St. Louis Intl. to Philadelphia Intl., returning Wed, Feb 18, priced at $260 found 6 hours ago
Sat, Feb 14 - Wed, Feb 18
STL
Lambert-St. Louis Intl.
PHL
Philadelphia Intl.
$267 Roundtrip, found 6 hours ago
$267
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Feb 14 from Lambert-St. Louis Intl. to Philadelphia Intl., returning Wed, Feb 18, priced at $267 found 6 hours ago
Sat, Feb 14 - Wed, Feb 18
STL
Lambert-St. Louis Intl.
PHL
Philadelphia Intl.
$297 Roundtrip, found 6 hours ago
$297
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Feb 14 from Lambert-St. Louis Intl. to Philadelphia Intl., returning Wed, Feb 18, priced at $297 found 6 hours ago
Sat, Feb 14 - Wed, Feb 18
STL
Lambert-St. Louis Intl.
PHL
Philadelphia Intl.
$305 Roundtrip, found 6 hours ago
$305
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sat, Feb 14 from Lambert-St. Louis Intl. to Philadelphia Intl., returning Wed, Feb 18, priced at $305 found 6 hours ago