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 $279 and $111 for one-way flights to Key West Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Mar 1 - Thu, Mar 12
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$279 Roundtrip, found 2 days ago
$279
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Mar 1 from Ronald Reagan Washington National to Key West Intl., returning Thu, Mar 12, priced at $279 found 2 days ago
Wed, Oct 15 - Tue, Oct 21
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$284 Roundtrip, just found
$284
Roundtrip
just found
Select American Airlines flight, departing Wed, Oct 15 from Ronald Reagan Washington National to Key West Intl., returning Tue, Oct 21, priced at $284 just found
Tue, Jan 20 - Fri, Jan 23
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$298 Roundtrip, found 2 days ago
$298
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Jan 20 from Ronald Reagan Washington National to Key West Intl., returning Fri, Jan 23, priced at $298 found 2 days ago
Sat, Jan 17 - Thu, Jan 22
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$310 Roundtrip, found 1 day ago
$310
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Jan 17 from Ronald Reagan Washington National to Key West Intl., returning Thu, Jan 22, priced at $310 found 1 day ago
Wed, Oct 22 - Tue, Oct 28
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$316 Roundtrip, just found
$316
Roundtrip
just found
Select American Airlines flight, departing Wed, Oct 22 from Ronald Reagan Washington National to Key West Intl., returning Tue, Oct 28, priced at $316 just found
Thu, Nov 13 - Wed, Nov 19
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$318 Roundtrip, found 3 days ago
$318
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Nov 13 from Ronald Reagan Washington National to Key West Intl., returning Wed, Nov 19, priced at $318 found 3 days ago
Thu, Dec 18 - Mon, Dec 22
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$319 Roundtrip, found 21 hours ago
$319
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Thu, Dec 18 from Ronald Reagan Washington National to Key West Intl., returning Mon, Dec 22, priced at $319 found 21 hours ago
Wed, Oct 15 - Tue, Oct 21
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$321 Roundtrip, just found
$321
Roundtrip
just found
Select American Airlines flight, departing Wed, Oct 15 from Ronald Reagan Washington National to Key West Intl., returning Tue, Oct 21, priced at $321 just found
Sat, Oct 11 - Tue, Oct 14
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$322 Roundtrip, found 2 days ago
$322
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Oct 11 from Ronald Reagan Washington National to Key West Intl., returning Tue, Oct 14, priced at $322 found 2 days ago
Thu, Nov 13 - Wed, Nov 19
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$324 Roundtrip, found 3 days ago
$324
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Nov 13 from Ronald Reagan Washington National to Key West Intl., returning Wed, Nov 19, priced at $324 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.