JetBlue Airways Flight NK39 Deals & Information (2025/2026)

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JetBlue Airways Flight 39 Route Deals From $99

The cheapest prices found with in the last 7 days for return flights were $223 and $99 for one-way flights to Juan Santamaría Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 6 - Wed, Aug 20
FLL
Fort Lauderdale - Hollywood Intl.
SJO
Juan Santamaría Intl.
$223 Roundtrip, found 10 hours ago
$223
Roundtrip
found 10 hours ago
Select JetBlue Airways flight, departing Wed, Aug 6 from Fort Lauderdale - Hollywood Intl. to Juan Santamaría Intl., returning Wed, Aug 20, priced at $223 found 10 hours ago
Fri, Aug 8 - Mon, Aug 11
FLL
Fort Lauderdale - Hollywood Intl.
SJO
Juan Santamaría Intl.
$224 Roundtrip, found 6 hours ago
$224
Roundtrip
found 6 hours ago
Select JetBlue Airways flight, departing Fri, Aug 8 from Fort Lauderdale - Hollywood Intl. to Juan Santamaría Intl., returning Mon, Aug 11, priced at $224 found 6 hours ago
Fri, Sep 12 - Mon, Sep 15
FLL
Fort Lauderdale - Hollywood Intl.
SJO
Juan Santamaría Intl.
$225 Roundtrip, just found
$225
Roundtrip
just found
Select JetBlue Airways flight, departing Fri, Sep 12 from Fort Lauderdale - Hollywood Intl. to Juan Santamaría Intl., returning Mon, Sep 15, priced at $225 just found

Frequently asked questions

What route does flight number B639 take?
B639 jets between Fort Lauderdale, FL Airport (FLL-Fort Lauderdale - Hollywood Intl.) and Juan Santamaria Intl. Airport and is a direct flight. This journey typically takes 2 hours and 58 minutes.
What terminal does B639 fly out of?
Flights to and from Fort Lauderdale, FL Airport (FLL-Fort Lauderdale - Hollywood Intl.) and SJO are served by flight number B639, and passengers who opt for this flight normally depart from Terminal 3.
What kind of plane is on flight number B639?
The route for B639 is nearly always Fort Lauderdale - Hollywood Intl. Airport to San Jose Airport (SJO-Juan Santamaria Intl.), and the Airbus A320 is the type of plane you'll probably be jetting off 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 B639 flight with Travelocity, please visit our Customer Service Portal.