With United Airlines to San Juan in lie flat seats.
More routes offering lie-flat seats in Business/First Class on domestic flights within the United States can be found in our dedicated post.
👉 https://premium-flights.com/lie-flat-seats-in-business-first-class-on-domestic-flights-within-the-united-states/
How to Book
The cheapest flights can be found via OTA’s, link with prices below.
To get lie-flat seats, you’ll need to choose a flight operated by a Boeing 767, this should be flight numbers UA 2143 and UA 1173 (better check twice).
Travel Dates
Good availability across 2026 and 2027, including many weekend options with the exception of April.
Fare Rules
No minimum or maximum stay requirements.
Good Business Class Price
This is a solid Business Class fare from Newark to San Juan and comfortably within good long-haul premium pricing territory.
Want to check another route? Use our Business Class fare checker →
Note: Prices were verified at the time of publication but may change or expire without notice. We do not sell flights ourselves. Some links may be affiliate links, which may earn us a small commission at no extra cost to you.