United Flight 2143 Deals & Information (2026/2027)

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United Flight 2143 Route Deals From $155

The cheapest prices found with in the last 7 days for return flights were $307 and $155 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.
$307 Roundtrip, just found
$307
Roundtrip
just found
Select United flight, departing Sat, Aug 22 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Sep 2, priced at $307 just found
Sat, Aug 22 - Wed, Sep 2
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$312 Roundtrip, just found
$312
Roundtrip
just found
Select United flight, departing Sat, Aug 22 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Sep 2, priced at $312 just found
Tue, Dec 1 - Wed, Dec 2
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$314 Roundtrip, just found
$314
Roundtrip
just found
Select United flight, departing Tue, Dec 1 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Dec 2, priced at $314 just found
Mon, Sep 7 - Fri, Sep 11
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 Mon, Sep 7 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Fri, Sep 11, priced at $317 found 1 hour ago
Fri, Sep 4 - Sat, Sep 12
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$329 Roundtrip, found 2 hours ago
$329
Roundtrip
found 2 hours ago
Select United flight, departing Fri, Sep 4 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Sat, Sep 12, priced at $329 found 2 hours ago
Tue, Dec 1 - Wed, Dec 2
EWR
Newark Liberty Intl. Airport
SJU
Luis Munoz Marin Intl.
$336 Roundtrip, just found
$336
Roundtrip
just found
Select United flight, departing Tue, Dec 1 from Newark Liberty Intl. Airport to Luis Munoz Marin Intl., returning Wed, Dec 2, priced at $336 just found

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.