Delta Flight 40 Deals & Information (2025/2026)

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Delta Flight 40 Route Deals From $461

The cheapest prices found with in the last 7 days for return flights were $753 and $461 for one-way flights to Los Angeles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 30 - Tue, Oct 28
SYD
Kingsford Smith Intl.
LAX
Los Angeles Intl.
$753 Roundtrip, found 3 days ago
$753
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 30 from Kingsford Smith Intl. to Los Angeles Intl., returning Tue, Oct 28, priced at $753 found 3 days ago

Frequently asked questions

What route does flight number DL40 take?
You’ll be arriving into LAX from SYD if you’re traveling on flight number DL40. You’ll be in the air for 13 hours and 25 minutes during this journey. It’s also good to note that the flight conveniently travels non-stop.
What terminal does DL40 fly out of?
Travelers with seats on flight number DL40 from Kingsford Smith Intl. Airport (SYD) to Los Angeles Intl. Airport (LAX) generally depart from Terminal 1.
What kind of plane is on flight number DL40?
Expect to step aboard an Airbus A350-900 if your flight number is DL40. The majority of flights from SYD to LAX use 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 DL40 flight with Travelocity, please visit our Customer Service Portal.