Delta Flight WN3664 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Delta Flight 3664 Route Deals From $99

The cheapest prices found with in the last 7 days for return flights were $197 and $99 for one-way flights to Austin-Bergstrom Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 8 - Tue, Oct 14
SLC
Salt Lake City Intl.
AUS
Austin-Bergstrom Intl.
$197 Roundtrip, found 1 hour ago
$197
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Oct 8 from Salt Lake City Intl. to Austin-Bergstrom Intl., returning Tue, Oct 14, priced at $197 found 1 hour ago
Mon, Oct 6 - Wed, Oct 15
SLC
Salt Lake City Intl.
AUS
Austin-Bergstrom Intl.
$197 Roundtrip, found 1 hour ago
$197
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, Oct 6 from Salt Lake City Intl. to Austin-Bergstrom Intl., returning Wed, Oct 15, priced at $197 found 1 hour ago
Wed, Jul 30 - Mon, Aug 18
SLC
Salt Lake City Intl.
AUS
Austin-Bergstrom Intl.
$211 Roundtrip, found 4 days ago
$211
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jul 30 from Salt Lake City Intl. to Austin-Bergstrom Intl., returning Mon, Aug 18, priced at $211 found 4 days ago
Tue, Sep 9 - Mon, Sep 15
SLC
Salt Lake City Intl.
AUS
Austin-Bergstrom Intl.
$217 Roundtrip, found 3 days ago
$217
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 9 from Salt Lake City Intl. to Austin-Bergstrom Intl., returning Mon, Sep 15, priced at $217 found 3 days ago
Sat, Aug 2 - Mon, Aug 18
SLC
Salt Lake City Intl.
AUS
Austin-Bergstrom Intl.
$221 Roundtrip, found 4 days ago
$221
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Aug 2 from Salt Lake City Intl. to Austin-Bergstrom Intl., returning Mon, Aug 18, priced at $221 found 4 days ago
Sat, Jul 12 - Tue, Jul 29
SLC
Salt Lake City Intl.
AUS
Austin-Bergstrom Intl.
$227 Roundtrip, found 4 days ago
$227
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Jul 12 from Salt Lake City Intl. to Austin-Bergstrom Intl., returning Tue, Jul 29, priced at $227 found 4 days ago
Mon, Oct 6 - Fri, Oct 17
SLC
Salt Lake City Intl.
AUS
Austin-Bergstrom Intl.
$262 Roundtrip, found 1 hour ago
$262
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, Oct 6 from Salt Lake City Intl. to Austin-Bergstrom Intl., returning Fri, Oct 17, priced at $262 found 1 hour ago

Frequently asked questions

What route does flight number DL3664 take?
You’ll be landing at LAX from Spokane Intl. Airport if you’ve booked a ticket on flight number DL3664. You’ll be in the sky for 2 hours and 49 minutes during this trip. It’s also good to note that it conveniently travels non-stop.
What kind of plane is on flight number DL3664?
Expect to cruise aboard an Embraer 175 if you’re taking off on flight DL3664. Nearly all flights from Spokane, WA Airport (GEG-Spokane Intl.) to LAX operate using this type of plane.
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 DL3664 flight with Travelocity, please visit our Customer Service Portal.