American Airlines Flight AA1240 Deals & Information (2025/2026)

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American Airlines Flight 1240 Route Deals From $149

The cheapest prices found with in the last 7 days for return flights were $256 and $149 for one-way flights to Philadelphia Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jul 18 - Sun, Jul 20
RSW
Southwest Florida Intl.
PHL
Philadelphia Intl.
$256 Roundtrip, found 7 hours ago
$256
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Fri, Jul 18 from Southwest Florida Intl. to Philadelphia Intl., returning Sun, Jul 20, priced at $256 found 7 hours ago

Frequently asked questions

What route does flight number AA1240 take?
AA1240 takes a number of routes. The most frequently flown is Sea-Tac Airport to O'Hare Airport, which flies direct. This flight typically takes 4 hours and 21 minutes. That said, there may be other flights with this number that are multi-stop.
How often is AA1240 on time?
American Airlines flight number AA1240 from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) to ORD touches down according to schedule 93% of the time, so you can relax knowing that you will get to your destination ASAP. In the rare event that it is behind schedule, it is delayed on average by 37 minutes. This flight has a 2.9-star rating.
What kind of plane is on flight number AA1240?
AA1240 is a flight number that is used on many different routes. If you're booked on the busiest route, SEA to ORD, there's a strong chance you'll be cruising aboard a Boeing 737-800.
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 AA1240 flight with Travelocity, please visit our Customer Service Portal.