American Airlines Flight AA4540 Deals & Information (2025/2026)

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American Airlines Flight 4540 Route Deals From $111

The cheapest prices found with in the last 7 days for return flights were $231 and $111 for one-way flights to Key West Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jan 20 - Tue, Jan 27
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$231 Roundtrip, found 1 hour ago
$231
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, Jan 20 from Ronald Reagan Washington National to Key West Intl., returning Tue, Jan 27, priced at $231 found 1 hour ago
Tue, Jan 20 - Tue, Jan 27
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$245 Roundtrip, found 1 hour ago
$245
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, Jan 20 from Ronald Reagan Washington National to Key West Intl., returning Tue, Jan 27, priced at $245 found 1 hour ago
Wed, Oct 15 - Tue, Oct 21
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$275 Roundtrip, found 2 hours ago
$275
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Oct 15 from Ronald Reagan Washington National to Key West Intl., returning Tue, Oct 21, priced at $275 found 2 hours ago
Fri, Feb 20 - Wed, Feb 25
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$279 Roundtrip, found 3 days ago
$279
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Feb 20 from Ronald Reagan Washington National to Key West Intl., returning Wed, Feb 25, priced at $279 found 3 days ago
Tue, Nov 18 - Sat, Nov 22
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$283 Roundtrip, found 2 days ago
$283
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Nov 18 from Ronald Reagan Washington National to Key West Intl., returning Sat, Nov 22, priced at $283 found 2 days ago
Tue, Jan 20 - Tue, Jan 27
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$286 Roundtrip, found 1 hour ago
$286
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, Jan 20 from Ronald Reagan Washington National to Key West Intl., returning Tue, Jan 27, priced at $286 found 1 hour ago
Wed, Oct 15 - Tue, Oct 21
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$291 Roundtrip, found 2 hours ago
$291
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Oct 15 from Ronald Reagan Washington National to Key West Intl., returning Tue, Oct 21, priced at $291 found 2 hours ago
Sat, Nov 15 - Tue, Nov 18
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$300 Roundtrip, found 7 hours ago
$300
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sat, Nov 15 from Ronald Reagan Washington National to Key West Intl., returning Tue, Nov 18, priced at $300 found 7 hours ago
Tue, Jan 20 - Tue, Jan 27
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$305 Roundtrip, found 1 hour ago
$305
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, Jan 20 from Ronald Reagan Washington National to Key West Intl., returning Tue, Jan 27, priced at $305 found 1 hour ago
Fri, Feb 20 - Wed, Feb 25
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, Feb 20 from Ronald Reagan Washington National to Key West Intl., returning Wed, Feb 25, priced at $309 found 3 days ago

Frequently asked questions

What route does flight number AA4540 take?
AA4540 flies straight from CLE to PHL in 1 hour and 33 minutes. It can sometimes take other routes though, some of which may be multi-stop journeys. Keep this in mind when locking in your airfare to avoid any confusion.
What kind of plane is on flight number AA4540?
AA4540 is a flight number that's used on many different routes. If you're traveling on the busiest route, Cleveland Hopkins Intl. Airport to Philadelphia Intl. Airport (PHL), you'll likely be boarding an Embraer 175.
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 AA4540 flight with Travelocity, please visit our Customer Service Portal.