Delta Flight DL1644 Deals & Information (2025/2026)

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Delta Flight 1644 Route Deals From $101

The cheapest prices found with in the last 7 days for return flights were $157 and $101 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 22 - Wed, Oct 29
DTW
Detroit Metropolitan Wayne County
DEN
Denver Intl.
$157 Roundtrip, found 2 days ago
$157
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Oct 22 from Detroit Metropolitan Wayne County to Denver Intl., returning Wed, Oct 29, priced at $157 found 2 days ago
Tue, Sep 9 - Tue, Sep 23
DTW
Detroit Metropolitan Wayne County
DEN
Denver Intl.
$177 Roundtrip, found 3 hours ago
$177
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Sep 9 from Detroit Metropolitan Wayne County to Denver Intl., returning Tue, Sep 23, priced at $177 found 3 hours ago
Tue, Sep 9 - Tue, Sep 23
DTW
Detroit Metropolitan Wayne County
DEN
Denver Intl.
$180 Roundtrip, found 3 hours ago
$180
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Sep 9 from Detroit Metropolitan Wayne County to Denver Intl., returning Tue, Sep 23, priced at $180 found 3 hours ago

Frequently asked questions

What route does flight number DL1644 take?
You’ll be touching down at Seattle - Tacoma Intl. Airport (SEA) from Los Angeles, CA Airport (LAX-Los Angeles Intl.) if you’re traveling on flight number DL1644. You’ll be in the air for 2 hours and 48 minutes on this trip. It’s also good to note that the service conveniently travels direct.
What terminal does DL1644 fly out of?
Flight number DL1644 runs between LAX and SEA, and travelers on this flight generally depart from Terminal 2.
What kind of plane is on flight number DL1644?
The route for flight number DL1644 is generally Los Angeles, CA Airport (LAX-Los Angeles Intl.) to Sea-Tac Airport, and the Boeing 737-800 is the type of plane you’re likely to be flying with.
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 DL1644 flight with Travelocity, please visit our Customer Service Portal.