Delta Flight AS3989 Deals & Information (2025/2026)

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Delta Flight 3989 Route Deals From $79

The cheapest prices found with in the last 7 days for return flights were $180 and $79 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Aug 24 - Fri, Aug 29
MFR
Rogue Valley Intl.
SEA
Seattle - Tacoma Intl.
$180 Roundtrip, found 20 hours ago
$180
Roundtrip
found 20 hours ago
Select Delta flight, departing Sun, Aug 24 from Rogue Valley Intl. to Seattle - Tacoma Intl., returning Fri, Aug 29, priced at $180 found 20 hours ago
Sun, Sep 21 - Mon, Sep 22
MFR
Rogue Valley Intl.
SEA
Seattle - Tacoma Intl.
$200 Roundtrip, found 4 days ago
$200
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Sep 21 from Rogue Valley Intl. to Seattle - Tacoma Intl., returning Mon, Sep 22, priced at $200 found 4 days ago

Frequently asked questions

What route does flight number DL3989 take?
DL3989 flies directly between Los Angeles Intl. Airport (LAX) and Tucson Intl. Airport in roughly 1 hour and 29 minutes. It can be used on other routes though, some of which could be multi-stop trips. Keep an eye out for this when locking in your airfare to avoid any confusion.
How often is DL3989 on time?
If you’re traveling with Delta flight number DL3989 between LAX and TUS, you’ll be glad to know that their services depart as scheduled 100% of the time. On the rare instance that a flight is later than scheduled, it should only be delayed by around 6 minutes. Thanks to its quality of service, this journey has a 4.25-star rating.
What terminal does DL3989 fly out of?
DL3989 flights out of Los Angeles, CA Airport (LAX-Los Angeles Intl.) normally take off from Terminal 2. This flight number runs on several routes, but the most frequented one is Los Angeles, CA Airport (LAX-Los Angeles Intl.) to Tucson, AZ Airport (TUS-Tucson Intl.).
What kind of plane is on flight number DL3989?
DL3989 is a flight number that serves lots of different routes. If you’re traveling on the most frequent route, LAX to Tucson, AZ Airport (TUS-Tucson Intl.), you’re likely to be cruising aboard the Embraer 175.
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 DL3989 flight with Travelocity, please visit our Customer Service Portal.