American Airlines Flight 5578 Deals & Information (2025/2026)

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American Airlines Flight 5578 Route Deals From $170

The cheapest prices found with in the last 7 days for return flights were $287 and $170 for one-way flights to Philadelphia Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 28 - Thu, Sep 4
CVG
Cincinnati - Northern Kentucky Intl.
PHL
Philadelphia Intl.
$287 Roundtrip, found 16 hours ago
$287
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Thu, Aug 28 from Cincinnati - Northern Kentucky Intl. to Philadelphia Intl., returning Thu, Sep 4, priced at $287 found 16 hours ago
Mon, Sep 29 - Wed, Oct 1
CVG
Cincinnati - Northern Kentucky Intl.
PHL
Philadelphia Intl.
$291 Roundtrip, found 10 hours ago
$291
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Sep 29 from Cincinnati - Northern Kentucky Intl. to Philadelphia Intl., returning Wed, Oct 1, priced at $291 found 10 hours ago
Wed, Sep 24 - Tue, Sep 30
CVG
Cincinnati - Northern Kentucky Intl.
PHL
Philadelphia Intl.
$299 Roundtrip, found 4 days ago
$299
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 24 from Cincinnati - Northern Kentucky Intl. to Philadelphia Intl., returning Tue, Sep 30, priced at $299 found 4 days ago
Mon, Sep 29 - Wed, Oct 1
CVG
Cincinnati - Northern Kentucky Intl.
PHL
Philadelphia Intl.
$323 Roundtrip, found 10 hours ago
$323
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Sep 29 from Cincinnati - Northern Kentucky Intl. to Philadelphia Intl., returning Wed, Oct 1, priced at $323 found 10 hours ago
Wed, Sep 24 - Tue, Sep 30
CVG
Cincinnati - Northern Kentucky Intl.
TTN
Mercer
$394 Roundtrip, found 4 days ago
$394
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 24 from Cincinnati - Northern Kentucky Intl. to Mercer, returning Tue, Sep 30, priced at $394 found 4 days ago
Wed, Sep 24 - Tue, Sep 30
CVG
Cincinnati - Northern Kentucky Intl.
PHL
Philadelphia Intl.
$395 Roundtrip, found 4 days ago
$395
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 24 from Cincinnati - Northern Kentucky Intl. to Philadelphia Intl., returning Tue, Sep 30, priced at $395 found 4 days ago