United Flight 1556 Deals & Information (2026/2027)

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United Flight 1556 Route Deals From $179

The cheapest prices found with in the last 7 days for return flights were $287 and $179 for one-way flights to Luis Munoz Marin Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 22 - Wed, Sep 2
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$287 Roundtrip, found 2 hours ago
$287
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Aug 22 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Sep 2, priced at $287 found 2 hours ago
Sun, Aug 23 - Tue, Sep 8
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$307 Roundtrip, found 8 hours ago
$307
Roundtrip
found 8 hours ago
Select United flight, departing Sun, Aug 23 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Tue, Sep 8, priced at $307 found 8 hours ago
Sat, Aug 22 - Wed, Sep 2
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$312 Roundtrip, found 2 hours ago
$312
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Aug 22 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Sep 2, priced at $312 found 2 hours ago
Wed, Sep 2 - Wed, Oct 28
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$317 Roundtrip, found 1 hour ago
$317
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Sep 2 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Oct 28, priced at $317 found 1 hour ago
Sat, Jul 4 - Sun, Aug 2
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$328 Roundtrip, found 1 day ago
$328
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jul 4 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Sun, Aug 2, priced at $328 found 1 day ago
Wed, Sep 2 - Wed, Oct 28
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$336 Roundtrip, found 1 hour ago
$336
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Sep 2 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Oct 28, priced at $336 found 1 hour ago
Sat, Aug 22 - Wed, Sep 2
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$343 Roundtrip, found 2 hours ago
$343
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Aug 22 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Sep 2, priced at $343 found 2 hours ago
Sat, Aug 22 - Wed, Sep 2
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$346 Roundtrip, found 2 hours ago
$346
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Aug 22 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Sep 2, priced at $346 found 2 hours ago
Sun, Aug 23 - Tue, Sep 8
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$348 Roundtrip, found 8 hours ago
$348
Roundtrip
found 8 hours ago
Select United flight, departing Sun, Aug 23 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Tue, Sep 8, priced at $348 found 8 hours ago
Wed, Sep 2 - Wed, Oct 28
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$352 Roundtrip, found 1 hour ago
$352
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Sep 2 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Oct 28, priced at $352 found 1 hour ago
Mon, Jun 22 - Sat, Jun 27
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$357 Roundtrip, found 1 hour ago
$357
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Jun 22 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Sat, Jun 27, priced at $357 found 1 hour 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.