American Airlines Flight AA1543 Deals & Information (2025/2026)

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American Airlines Flight 1543 Route Deals From $119

The cheapest prices found with in the last 7 days for return flights were $237 and $119 for one-way flights to San Diego Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 1 - Wed, Jul 9
ORD
O'Hare Intl.
SAN
San Diego Intl.
$237 Roundtrip, found 12 hours ago
$237
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Tue, Jul 1 from O'Hare Intl. to San Diego Intl., returning Wed, Jul 9, priced at $237 found 12 hours ago
Tue, Jul 1 - Wed, Jul 9
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$257 Roundtrip, found 12 hours ago
$257
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Tue, Jul 1 from O'Hare Intl. to McClellan-Palomar, returning Wed, Jul 9, priced at $257 found 12 hours ago
Wed, Jul 2 - Tue, Jul 8
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$258 Roundtrip, found 6 days ago
$258
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jul 2 from O'Hare Intl. to McClellan-Palomar, returning Tue, Jul 8, priced at $258 found 6 days ago
Tue, Jun 24 - Sat, Jun 28
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$261 Roundtrip, found 1 day ago
$261
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Jun 24 from O'Hare Intl. to McClellan-Palomar, returning Sat, Jun 28, priced at $261 found 1 day ago
Wed, Jun 25 - Wed, Jul 2
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$262 Roundtrip, found 1 day ago
$262
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Jun 25 from O'Hare Intl. to McClellan-Palomar, returning Wed, Jul 2, priced at $262 found 1 day ago
Tue, Jul 1 - Mon, Jul 7
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$277 Roundtrip, just found
$277
Roundtrip
just found
Select American Airlines flight, departing Tue, Jul 1 from O'Hare Intl. to McClellan-Palomar, returning Mon, Jul 7, priced at $277 just found
Tue, Jun 10 - Fri, Jun 13
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$281 Roundtrip, found 6 days ago
$281
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Jun 10 from O'Hare Intl. to McClellan-Palomar, returning Fri, Jun 13, priced at $281 found 6 days ago
Thu, Jul 3 - Mon, Jul 7
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$283 Roundtrip, found 3 days ago
$283
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Jul 3 from O'Hare Intl. to McClellan-Palomar, returning Mon, Jul 7, priced at $283 found 3 days ago
Thu, Jul 10 - Mon, Jul 14
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$293 Roundtrip, found 3 days ago
$293
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Jul 10 from O'Hare Intl. to McClellan-Palomar, returning Mon, Jul 14, priced at $293 found 3 days ago
Tue, Jul 1 - Wed, Jul 9
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$297 Roundtrip, found 12 hours ago
$297
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Tue, Jul 1 from O'Hare Intl. to McClellan-Palomar, returning Wed, Jul 9, priced at $297 found 12 hours ago

Frequently asked questions

What route does flight number AA1543 take?
Flight number AA1543 takes roughly 4 hours and 4 minutes to jet non-stop from San Diego, CA Airport (SAN-San Diego Intl.) to ORD. Sure, there’s magic in the destination, but the journey is always half the fun!
What terminal does AA1543 fly out of?
AA1543 runs between San Diego Airport and ORD, and travelers with a seat on this flight normally take off from Terminal 2.
What kind of plane is on flight number AA1543?
Expect to step aboard a Boeing 737-800 if you have a seat on flight AA1543. Most flights from San Diego, CA Airport (SAN-San Diego Intl.) to Chicago, IL Airport (ORD-O’Hare Intl.) operate using this model of aircraft.
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 AA1543 flight with Travelocity, please visit our Customer Service Portal.