American Airlines Flight 1543 Deals & Information (2026/2027)

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 $174

The cheapest prices found with in the last 7 days for return flights were $212 and $174 for one-way flights to San Diego Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 2 - Wed, May 13
ORD
O'Hare Intl.
SAN
San Diego Intl.
$212 Roundtrip, found 4 days ago
$212
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, May 2 from O'Hare Intl. to San Diego Intl., returning Wed, May 13, priced at $212 found 4 days ago
Tue, May 5 - Sat, May 9
ORD
O'Hare Intl.
SAN
San Diego Intl.
$242 Roundtrip, found 3 hours ago
$242
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, May 5 from O'Hare Intl. to San Diego Intl., returning Sat, May 9, priced at $242 found 3 hours ago
Tue, May 5 - Sat, May 9
ORD
O'Hare Intl.
SAN
San Diego Intl.
$247 Roundtrip, found 3 hours ago
$247
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, May 5 from O'Hare Intl. to San Diego Intl., returning Sat, May 9, priced at $247 found 3 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.