United Flight 1556 Deals & Information (2026/2027)

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United Flight 1556 Route Deals From $196

The cheapest prices found with in the last 7 days for return flights were $308 and $196 for one-way flights to Luis Munoz Marin Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Sep 3 - Wed, Sep 9
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$308 Roundtrip, found 4 hours ago
$308
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Sep 3 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Sep 9, priced at $308 found 4 hours ago
Thu, Sep 3 - Wed, Sep 9
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$312 Roundtrip, found 4 hours ago
$312
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Sep 3 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Sep 9, priced at $312 found 4 hours ago
Thu, Sep 3 - Wed, Sep 9
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$323 Roundtrip, found 4 hours ago
$323
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Sep 3 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Sep 9, priced at $323 found 4 hours ago
Thu, Sep 3 - Wed, Sep 9
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$328 Roundtrip, found 4 hours ago
$328
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Sep 3 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Sep 9, priced at $328 found 4 hours ago
Sat, Jun 13 - Tue, Jun 16
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$337 Roundtrip, found 3 hours ago
$337
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Jun 13 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Tue, Jun 16, priced at $337 found 3 hours ago
Wed, Jul 15 - Thu, Jul 30
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$362 Roundtrip, found 2 hours ago
$362
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Jul 15 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Thu, Jul 30, priced at $362 found 2 hours ago

Frequently asked questions

What route does flight number UA1556 take?
UA1556 operates from Newark, NJ Airport (EWR-Liberty Intl.) to Isla Verde Intl. Airport directly. This service usually takes 3 hours and 54 minutes.
What terminal does UA1556 fly out of?
Passengers with a booking on flight number UA1556 from EWR to San Juan Airport (SJU-Luis Munoz Marin Intl.) generally fly out of Terminal C.
What kind of plane is on flight number UA1556?
Get ready to step aboard a Boeing 737-900 if you're taking off on flight UA1556. Nearly all flights from EWR to SJU are operated using this type of aircraft.
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 UA1556 flight with Travelocity, please visit our Customer Service Portal.