Delta Flight 644 Deals & Information (2025/2026)

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Delta Flight 644 Route Deals From $111

The cheapest prices found with in the last 7 days for return flights were $205 and $111 for one-way flights to LaGuardia for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 2 - Wed, Sep 3
BOS
Logan Intl.
LGA
LaGuardia
$205 Roundtrip, found 1 day ago
$205
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 2 from Logan Intl. to LaGuardia, returning Wed, Sep 3, priced at $205 found 1 day ago
Fri, Feb 20 - Sat, Feb 28
BOS
Logan Intl.
LGA
LaGuardia
$217 Roundtrip, found 8 hours ago
$217
Roundtrip
found 8 hours ago
Select Delta flight, departing Fri, Feb 20 from Logan Intl. to LaGuardia, returning Sat, Feb 28, priced at $217 found 8 hours ago

Frequently asked questions

What route does flight number DL644 take?
DL644 operates non-stop from New York, NY Airport (JFK-John F. Kennedy Intl.) to Cancun Airport. During this journey, expect to be in the air for roughly 4 hours and 1 minute. Consider booking ahead to secure your favorite seat.
What terminal does DL644 fly out of?
Travelers booked on flight number DL644 from JFK Airport to Cancun Intl. Airport (CUN) typically board the plane from Terminal 4.
What kind of plane is on flight number DL644?
The route for flight number DL644 is nearly always JFK to Cancun, Quintana Roo Airport (CUN-Cancun Intl.), and the Boeing 737-900 is the type of plane you'll probably 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 DL644 flight with Travelocity, please visit our Customer Service Portal.