Delta Flight NK3573 Deals & Information (2025/2026)

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Delta Flight 3573 Route Deals From $50

The cheapest prices found with in the last 7 days for return flights were $77 and $50 for one-way flights to Harry Reid Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 21 - Thu, Oct 23
SAN
San Diego Intl.
LAS
Harry Reid Intl.
$77 Roundtrip, found 2 days ago
$77
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Oct 21 from San Diego Intl. to Harry Reid Intl., returning Thu, Oct 23, priced at $77 found 2 days ago

Frequently asked questions

What route does flight number DL3573 take?
DL3573 flies directly from Portland Airport to Seattle - Tacoma Intl. Airport (SEA) in around 1 hour and 6 minutes. It can sometimes be used on other routes though, some of which may be multi-stop journeys. Keep an eye out for this when booking your seat to avoid any mix-ups.
What kind of plane is on flight number DL3573?
You're likely to travel aboard an Embraer 175 if you've booked a fare on flight number DL3573 from Portland Airport to Seattle - Tacoma Intl. Airport (SEA). This is the most commonly used type of plane on this route.
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 DL3573 flight with Travelocity, please visit our Customer Service Portal.