Delta Flight AS3509 Deals & Information (2025/2026)

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Delta Flight 3509 Route Deals From $69

The cheapest prices found with in the last 7 days for return flights were $137 and $69 for one-way flights to Sacramento Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 3 - Tue, May 6
SEA
Seattle - Tacoma Intl.
SMF
Sacramento Intl.
$137 Roundtrip, found 1 day ago
$137
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, May 3 from Seattle - Tacoma Intl. to Sacramento Intl., returning Tue, May 6, priced at $137 found 1 day ago

Frequently asked questions

What route does flight number DL3509 take?
DL3509 flies directly between Seattle - Tacoma Intl. Airport (SEA) and John Wayne Airport in 2 hours and 55 minutes. It can sometimes take other routes though, some of which could be multi-stop trips. Keep this in mind when booking your airfare to avoid any mix-ups.
What kind of plane is on flight number DL3509?
There’s every chance you’ll be boarding the Embraer 175 if you’ve booked a fare from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) to John Wayne Airport (SNA), a common route for flight DL3509.
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 DL3509 flight with Travelocity, please visit our Customer Service Portal.