American Airlines Flight F91543 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

American Airlines Flight 1543 Route Deals From $91

The cheapest prices found with in the last 7 days for return flights were $161 and $91 for one-way flights to San Diego Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 6 - Sat, Sep 13
ORD
O'Hare Intl.
SAN
San Diego Intl.
$161 Roundtrip, found 1 day ago
$161
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Sep 6 from O'Hare Intl. to San Diego Intl., returning Sat, Sep 13, priced at $161 found 1 day ago
Sat, Oct 4 - Wed, Oct 8
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$181 Roundtrip, found 2 days ago
$181
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Oct 4 from O'Hare Intl. to McClellan-Palomar, returning Wed, Oct 8, priced at $181 found 2 days ago
Sat, Nov 1 - Tue, Nov 4
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$191 Roundtrip, found 15 hours ago
$191
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Sat, Nov 1 from O'Hare Intl. to McClellan-Palomar, returning Tue, Nov 4, priced at $191 found 15 hours ago
Sat, Aug 16 - Sat, Aug 23
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$194 Roundtrip, found 18 hours ago
$194
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Aug 16 from O'Hare Intl. to McClellan-Palomar, returning Sat, Aug 23, priced at $194 found 18 hours ago
Tue, Aug 5 - Tue, Aug 19
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$212 Roundtrip, found 2 days ago
$212
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Aug 5 from O'Hare Intl. to McClellan-Palomar, returning Tue, Aug 19, priced at $212 found 2 days ago
Thu, Aug 21 - Tue, Aug 26
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$216 Roundtrip, found 6 hours ago
$216
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Aug 21 from O'Hare Intl. to McClellan-Palomar, returning Tue, Aug 26, priced at $216 found 6 hours ago
Tue, Aug 5 - Sat, Aug 9
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$217 Roundtrip, found 17 hours ago
$217
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Tue, Aug 5 from O'Hare Intl. to McClellan-Palomar, returning Sat, Aug 9, priced at $217 found 17 hours ago
Sun, Sep 7 - Wed, Sep 10
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$219 Roundtrip, found 6 days ago
$219
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, Sep 7 from O'Hare Intl. to McClellan-Palomar, returning Wed, Sep 10, priced at $219 found 6 days ago
Thu, Aug 21 - Mon, Aug 25
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$231 Roundtrip, found 2 days ago
$231
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Aug 21 from O'Hare Intl. to McClellan-Palomar, returning Mon, Aug 25, priced at $231 found 2 days ago
Fri, Jul 25 - Wed, Aug 6
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$233 Roundtrip, found 4 days ago
$233
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Jul 25 from O'Hare Intl. to McClellan-Palomar, returning Wed, Aug 6, priced at $233 found 4 days 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.