Delta Flight 621 Deals & Information (2025/2026)

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Delta Flight 621 Route Deals From $147

The cheapest prices found with in the last 7 days for return flights were $318 and $147 for one-way flights to Cancun Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jun 2 - Fri, Jun 6
JFK
John F. Kennedy Intl.
CUN
Cancun Intl.
$318 Roundtrip, found 1 hour ago
$318
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, Jun 2 from John F. Kennedy Intl. to Cancun Intl., returning Fri, Jun 6, priced at $318 found 1 hour ago
Mon, Jun 2 - Fri, Jun 6
JFK
John F. Kennedy Intl.
CUN
Cancun Intl.
$349 Roundtrip, found 1 hour ago
$349
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, Jun 2 from John F. Kennedy Intl. to Cancun Intl., returning Fri, Jun 6, priced at $349 found 1 hour ago

Frequently asked questions

What route does flight number DL621 take?
DL621 operates from JFK to Cancun Intl. Airport (CUN) and is a direct flight. This journey takes 4 hours and 1 minute.
What terminal does DL621 fly out of?
You’ll likely be boarding the plane from Terminal 4 if you’re booked on flight DL621 direct from JFK to CUN.
What kind of plane is on flight number DL621?
There’s a good chance you’ll find yourself jumping on board the Boeing 737-900 if you have a seat on flight DL621. This flight usually leaves from New York, NY Airport (JFK-John F. Kennedy Intl.) and comes in to land at Cancun Intl. Airport (CUN).
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 DL621 flight with Travelocity, please visit our Customer Service Portal.