American Airlines Flight AA637 Deals & Information (2025/2026)

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American Airlines Flight 637 Route Deals From $203

The cheapest prices found with in the last 7 days for return flights were $331 and $203 for one-way flights to T.F. Green for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 1 - Sat, Jul 5
PHL
Philadelphia Intl.
PVD
T.F. Green
$331 Roundtrip, found 6 hours ago
$331
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Jul 1 from Philadelphia Intl. to T.F. Green, returning Sat, Jul 5, priced at $331 found 6 hours ago
Tue, Jul 1 - Sat, Jul 5
PHL
Philadelphia Intl.
PVD
T.F. Green
$341 Roundtrip, found 6 hours ago
$341
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Jul 1 from Philadelphia Intl. to T.F. Green, returning Sat, Jul 5, priced at $341 found 6 hours ago
Tue, Jul 1 - Sat, Jul 5
PHL
Philadelphia Intl.
PVD
T.F. Green
$350 Roundtrip, found 6 hours ago
$350
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Jul 1 from Philadelphia Intl. to T.F. Green, returning Sat, Jul 5, priced at $350 found 6 hours ago
Thu, Aug 7 - Sun, Aug 10
PHL
Philadelphia Intl.
PVD
T.F. Green
$355 Roundtrip, found 14 hours ago
$355
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Thu, Aug 7 from Philadelphia Intl. to T.F. Green, returning Sun, Aug 10, priced at $355 found 14 hours ago

Frequently asked questions

What route does flight number AA637 take?
AA637 is used on a number of routes. Typically, AA637 flies directly from Chicago, IL Airport (ORD-O’Hare Intl.) to Philadelphia Airport. If you’ve booked a seat on this route, you’ll be airborne for about 2 hours and 7 minutes.
What terminal does AA637 fly out of?
AA637 flights out of ORD normally take off from Terminal 3. This flight number runs on multiple routes, but the most popular is ORD to Philadelphia, PA Airport (PHL-Philadelphia Intl.).
What kind of plane is on flight number AA637?
If you’ve booked a seat on flight AA637 from O’Hare Airport to Philadelphia, PA Airport (PHL-Philadelphia Intl.), you’re likely to be cruising aboard a Boeing 737-800. This flight number serves many routes, but this is the most common one.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your AA637 flight with Travelocity, please visit our Customer Service Portal.