American Airlines Flight AA340 Deals & Information (2025/2026)

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American Airlines Flight 340 Route Deals From $174

The cheapest prices found with in the last 7 days for return flights were $299 and $174 for one-way flights to Miami Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Feb 19 - Sat, Feb 22
LAX
Los Angeles Intl.
MIA
Miami Intl.
$299 Roundtrip, found 2 hours ago
$299
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Feb 19 from Los Angeles Intl. to Miami Intl., returning Sat, Feb 22, priced at $299 found 2 hours ago

Frequently asked questions

What route does flight number AA340 take?
AA340 jets from LAX to Miami Intl. Airport (MIA) and flies direct. This service takes 4 hours and 53 minutes.
How often is AA340 on time?
If you’ve booked tickets with American Airlines flight number AA340 from LAX to Miami Intl. Airport (MIA), 89% of these services take off on schedule. If it happens to be delayed, expect a wait time of about 2 hours and 15 minutes on average. Thanks to this air carrier’s high standard of service, this service has earned a 1.9-star rating.
What kind of plane is on flight number AA340?
There’s a strong chance you’ll be stepping on board the Boeing 777-300ER if you’re traveling on flight number AA340. Typically, this flight sets off from Los Angeles Intl. Airport (LAX) and lands at Miami, FL Airport (MIA-Miami Intl.).
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 AA340 flight with Travelocity, please visit our Customer Service Portal.