United Flight 2143 Deals & Information (2026/2027)

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United Flight 2143 Route Deals From $179

The cheapest prices found with in the last 7 days for return flights were $342 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.

Wed, Oct 14 - Sun, Oct 18
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$342 Roundtrip, just found
$342
Roundtrip
just found
Select United flight, departing Wed, Oct 14 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Sun, Oct 18, priced at $342 just found
Sun, Oct 11 - Wed, Nov 18
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$359 Roundtrip, found 2 hours ago
$359
Roundtrip
found 2 hours ago
Select United flight, departing Sun, Oct 11 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Nov 18, priced at $359 found 2 hours ago
Sun, Oct 11 - Wed, Nov 18
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$364 Roundtrip, found 2 hours ago
$364
Roundtrip
found 2 hours ago
Select United flight, departing Sun, Oct 11 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Nov 18, priced at $364 found 2 hours ago
Fri, Oct 30 - Mon, Nov 2
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$371 Roundtrip, just found
$371
Roundtrip
just found
Select United flight, departing Fri, Oct 30 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Mon, Nov 2, priced at $371 just found
Wed, Jan 13 - Tue, Jan 26
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$374 Roundtrip, found 2 hours ago
$374
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Jan 13 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Tue, Jan 26, priced at $374 found 2 hours ago
Sun, Oct 11 - Wed, Nov 18
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$376 Roundtrip, found 2 hours ago
$376
Roundtrip
found 2 hours ago
Select United flight, departing Sun, Oct 11 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Nov 18, priced at $376 found 2 hours ago

Frequently asked questions

What route does flight number UA2143 take?
UA2143 operates from Newark Airport to SJU directly. This journey usually takes 3 hours and 48 minutes.
What terminal does UA2143 fly out of?
Flight number UA2143 runs between Liberty Intl. Airport (EWR) and Isla Verde Intl. Airport, and passengers booked on this flight typically depart from Terminal C.
What kind of plane is on flight number UA2143?
The Boeing 777 is the aircraft that's mostly used for flight number UA2143. Usually, this flight departs from Liberty Intl. Airport (EWR) and touches down at Luis Munoz Marin Intl. Airport (SJU).
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 UA2143 flight with Travelocity, please visit our Customer Service Portal.