American Airlines Flight 4540 Deals & Information (2025/2026)

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American Airlines Flight 4540 Route Deals From $112

The cheapest prices found with in the last 7 days for return flights were $279 and $112 for one-way flights to Key West Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 16 - Tue, May 19
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 Sat, May 16 from Ronald Reagan Washington National to Key West Intl., returning Tue, May 19, priced at $279 found 2 days ago
Wed, Oct 15 - Tue, Oct 21
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$285 Roundtrip, found 12 hours ago
$285
Roundtrip
found 12 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 $285 found 12 hours ago
Tue, Apr 21 - Tue, Apr 28
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$294 Roundtrip, found 2 days ago
$294
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Apr 21 from Ronald Reagan Washington National to Key West Intl., returning Tue, Apr 28, priced at $294 found 2 days ago
Wed, Oct 1 - Mon, Oct 6
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$300 Roundtrip, found 3 days ago
$300
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct 1 from Ronald Reagan Washington National to Key West Intl., returning Mon, Oct 6, priced at $300 found 3 days ago
Mon, Nov 24 - Fri, Nov 28
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$309 Roundtrip, found 13 hours ago
$309
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Mon, Nov 24 from Ronald Reagan Washington National to Key West Intl., returning Fri, Nov 28, priced at $309 found 13 hours ago
Sat, Nov 8 - Tue, Nov 11
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$311 Roundtrip, found 1 day ago
$311
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Nov 8 from Ronald Reagan Washington National to Key West Intl., returning Tue, Nov 11, priced at $311 found 1 day ago
Fri, Nov 14 - Tue, Nov 18
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Nov 14 from Ronald Reagan Washington National to Key West Intl., returning Tue, Nov 18, priced at $319 found 1 day ago
Thu, Oct 30 - Mon, Nov 3
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$324 Roundtrip, found 6 days ago
$324
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Oct 30 from Ronald Reagan Washington National to Key West Intl., returning Mon, Nov 3, priced at $324 found 6 days ago
Fri, Dec 12 - Sun, Dec 14
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$326 Roundtrip, found 2 days ago
$326
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Dec 12 from Ronald Reagan Washington National to Key West Intl., returning Sun, Dec 14, priced at $326 found 2 days ago
Sat, Jan 3 - Sat, Jan 10
DCA
Ronald Reagan Washington National
EYW
Key West Intl.
$329 Roundtrip, just found
$329
Roundtrip
just found
Select American Airlines flight, departing Sat, Jan 3 from Ronald Reagan Washington National to Key West Intl., returning Sat, Jan 10, priced at $329 just found

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.