American Airlines Flight AA4345 Deals & Information (2025/2026)

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American Airlines Flight 4345 Route Deals From $328

The cheapest prices found with in the last 7 days for return flights were $359 and $328 for one-way flights to Hilton Head Island for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Nov 19 - Sat, Nov 22
DCA
Ronald Reagan Washington National
HHH
Hilton Head Island
$359 Roundtrip, found 5 days ago
$359
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Nov 19 from Ronald Reagan Washington National to Hilton Head Island, returning Sat, Nov 22, priced at $359 found 5 days ago
Sat, Oct 25 - Sat, Nov 1
DCA
Ronald Reagan Washington National
HHH
Hilton Head Island
$361 Roundtrip, found 3 hours ago
$361
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sat, Oct 25 from Ronald Reagan Washington National to Hilton Head Island, returning Sat, Nov 1, priced at $361 found 3 hours ago
Sat, Oct 25 - Sat, Nov 1
DCA
Ronald Reagan Washington National
HHH
Hilton Head Island
$364 Roundtrip, found 3 hours ago
$364
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sat, Oct 25 from Ronald Reagan Washington National to Hilton Head Island, returning Sat, Nov 1, priced at $364 found 3 hours ago
Sat, Oct 25 - Sat, Nov 1
DCA
Ronald Reagan Washington National
HHH
Hilton Head Island
$366 Roundtrip, found 3 hours ago
$366
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sat, Oct 25 from Ronald Reagan Washington National to Hilton Head Island, returning Sat, Nov 1, priced at $366 found 3 hours ago
Wed, Nov 19 - Sat, Nov 22
DCA
Ronald Reagan Washington National
HHH
Hilton Head Island
$369 Roundtrip, found 5 days ago
$369
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Nov 19 from Ronald Reagan Washington National to Hilton Head Island, returning Sat, Nov 22, priced at $369 found 5 days ago
Sat, Oct 25 - Sat, Nov 1
DCA
Ronald Reagan Washington National
HHH
Hilton Head Island
$374 Roundtrip, found 3 hours ago
$374
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sat, Oct 25 from Ronald Reagan Washington National to Hilton Head Island, returning Sat, Nov 1, priced at $374 found 3 hours ago
Wed, Nov 19 - Sat, Nov 22
DCA
Ronald Reagan Washington National
HHH
Hilton Head Island
$379 Roundtrip, found 5 days ago
$379
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Nov 19 from Ronald Reagan Washington National to Hilton Head Island, returning Sat, Nov 22, priced at $379 found 5 days ago
Sat, Oct 25 - Sat, Nov 1
DCA
Ronald Reagan Washington National
HHH
Hilton Head Island
$384 Roundtrip, found 3 hours ago
$384
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sat, Oct 25 from Ronald Reagan Washington National to Hilton Head Island, returning Sat, Nov 1, priced at $384 found 3 hours ago
Wed, Nov 19 - Sat, Nov 22
DCA
Ronald Reagan Washington National
HHH
Hilton Head Island
$384 Roundtrip, found 5 days ago
$384
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Nov 19 from Ronald Reagan Washington National to Hilton Head Island, returning Sat, Nov 22, priced at $384 found 5 days ago
Sat, Oct 25 - Sat, Nov 1
DCA
Ronald Reagan Washington National
HHH
Hilton Head Island
$396 Roundtrip, found 3 hours ago
$396
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sat, Oct 25 from Ronald Reagan Washington National to Hilton Head Island, returning Sat, Nov 1, priced at $396 found 3 hours ago

Frequently asked questions

What route does flight number AA4345 take?
AA4345 takes numerous routes. The most frequently flown is between Louisville Intl. Airport (SDF) and O'Hare Airport, which flies direct. This service takes roughly 1 hour and 38 minutes. That said, there may be other flights with the same number that have one or more stops.
What kind of plane is on flight number AA4345?
If you're taking flight AA4345 from Louisville Muhammad Ali Intl. Airport to ORD, you'll likely be heading off on the Embraer RJ145. This flight number serves a number of different 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 AA4345 flight with Travelocity, please visit our Customer Service Portal.