It’s easy, especially now that the carrier has more routes with aircraft fitted with international Business Class seats.
United now has more routes to Hawaii on aircraft furnished with an international Business Class seat than ever before. Which means if you know which flights have the seat, you get MUCH more for your money.
Let’s compare Seat 2A on two different United flights from Los Angeles to Honolulu, a route that now has four to six non-stop flights daily, depending on date of travel: seat 2A on UA1158 and seat 2A on UA1431.
Same airline. Same route. Same price. Same 2A.
But a world of difference
Flight UA1158 offers an international aircraft—a B777-200—with international Business Class seats.
United.com

United.com

On international flights, Business Class is really Business Class. On domestic flights, however, Business Class is puffed up, it’s called First Class, but it’s a big come down in comfort and overall experience on United (Transcons being the exception). You’re getting a smart phone instead of as flip-phone.

If you know the Hawaii flights on which United offers an international Business Class seat, you’ll have a simple way to get a free in-class seat upgrade.
IT STARTS WITH THE RIGHT AIRCRAFT
United’s B777-200s: The airline has four versions, but to Hawaii they all have a Business Class flat-bed seat: 180-degree recline, 76 inches long, 19 inches wide, and arranged 2x4x2.
United’s B767-400s: One version, all with flat-bed seats in Business. A little shorter than the B777 version (75 inches), but a bit wider (20.6 inches), and arranged 2x1x2.
United’s B757-200s: United has two versions, but to Hawaii they all have a Business Class flat-bed seat: 180-degree recline, 76 inches long, 20.6 inches wide, and arranged 2×2.
NETWORKING, CONNECTIONS, AND FREE UPGRADES
Mainland Connections: If you live in Washington, DC, you must make a connection to Maui, so why not book United via Chicago instead of via Los Angeles? If you do, you get the international Business Class seat, the “free in-class upgrade.”
HOW DO I EASILY BOOK MY ITINERARY AROUND THE BEST SEATS?
Just know where to find United’s international Business Class seat on routes to Hawaii…
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