United Fare Types Explained: Which One Should You Book?

United Airlines generally sells four seat types on long-haul international flights, but it’s getting confusing now that it also sells so many different fare types, including basic fares even in business class and premium economy. Is basic economy still cheaper once you add seat selection and a bag? What’s the difference between United Economy Plus and Premium Plus? What does the base premium fare take away that the standard fare includes? Can you still upgrade to a lie-flat seat for a few hundred dollars? We’ve flown all four cabins to Europe and priced out every fare type. Here’s what you’re giving up when you book the cheaper versions, and when it’s worth it anyway.

Seat vs. Fare Types: They’re Not the Same

United sells four seat types on transatlantic routes: Economy, Economy Plus, Premium Plus, and Polaris business class. Those are the actual seats.

Basic economy is not a cabin. It’s a fare type, and you sit in the same economy seat as everyone else in that cabin. The difference is what your ticket allows. There’s no free seat selection or checked bag, no upgrades, and no changes.

United now sells basic fares in the premium cabins too. There’s a Base Premium Economy fare and a Base Business fare, and both strip away valuable perks the standard fare still includes. So you’ll need to look carefully before purchasing and not just assume you get all the perks with premium seats.

The Four United Airlines Seat Options on Long-Haul Routes

Here’s what each seat option gives you across three cabins on the 777. Note that United operates a few widebody aircraft on international long-hauls, so you’ll want to check your specific route on SeatMaps or AeroLOPA.:

Economy: 3-4-3 layout, 31-inch pitch, 17-inch width, 3 inches of recline
Economy Plus: 3-4-3 layout, 34-inch pitch, 17-inch width, 4 inches of recline
Premium Plus: 2-4-2 layout, 38-inch pitch, 18.5-inch width, 6 inches of recline
Polaris: 1-2-1 layout, 78-inch pitch, 22-inch width, 180-degree lie-flat

An Important Distinction Between United Economy Plus and Premium Plus

Economy Plus is the same seat as economy with three more inches of legroom and one more inch of recline. It’s a real improvement if legroom is most important to you, but the width and the layout don’t change. You’re still getting a 3-3-3 configuration.

Premium Plus (United’s Premium Economy) is where the seat itself changes. The 2-4-2 or 2-3-2 layout in a separate smaller cabin is the reason we book it, because a couple can take a pair on the side without a third seat mate.

👉 United Premium Plus Review: Is It Worth It?

👉 United Polaris Business Class Review: Is It Worth It?

Empty airplane seats with yellow window views for travel photography. — United Premium Plus Seat

United Airlines Fare Types: What Each One Includes

Prices below are rough ranges from recent Dulles to Europe searches. Fares are unusually high right now, so treat these as relative, not fixed.

Basic Economy

Around $700-900 and up. You get the economy seat and not much else. Seat selection costs extra, you can’t upgrade, you can’t change your ticket, and the first checked bag is about $180. Add a bag and a seat selection and you’re close to the regular economy fare, so the savings mostly disappear. This makes sense if all you want is a seat on the plane, but the regular economy fare gives you more flexibility.

Economy

Right now, this is round $900 and up. You get free seat selection, a free checked bag, and you stay eligible to upgrade later. That upgrade eligibility is the part we love the most.

Economy Plus

This is a seat in the same economy cabin but you get more legroom, maybe a little more reclined, and first-of-economy boarding. You also get the free bag and seat selection. If you have elite status you may get these for free with your regular economy ticket and save hundreds.

Extra space on a narrow-body isn’t as good

United Airlines Base Premium Plus

While we’ve paid as low as $1200 from Washington Dulles to London and Paris in Premium Plus, a round trip is now $1,800 and up. It could even be $2-4k. The problem with the new basic premium plus is you get the Premium Plus seat, but seat selection costs extra and you cannot upgrade to Polaris business class. If you were planning to bid for a lie-flat seat, this fare takes that option away.

United Airlines Premium Plus (Standard)

This is now round $2,500 and up, which is crazy to us for all the same perks we paid $1200 for just two year ago. Now you need to pay significantly more to get same seat, plus free seat selection, two free checked bags, and upgrade eligibility. The few hundred dollars over the base fare is what buys you the Polaris upgrade path.

Honestly at these prices, we just wouldn’t book

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United Airlines Base Business Fare

Supposedly, United’s new base fares in premium cabins aimed to make them more affordable but you’ll now pay round $5k and up from the US to Europe. We’ve paid $2200 total round trip using our upgraded strategies from Premium Plus in the past that will no longer work. With the new basic Polaris, seat selection costs extra and basic business fares and upgrades also no longer get you into the Polaris Lounge. We used to love this perk and are sad to see it go. You’ll still get United Club access, but if you’re flying through Denver, Newark, Dulles, or anywhere with a Polaris lounge, this is a big downgrade.

Business Standard United Polaris

This is around $6k and up. You get free seat selection, two free bags, priority everything, and Polaris Lounge access where it’s available.

Important: As of 2026, you cannot upgrade to United Polaris from a basic premium economy fare. If the upgrade is part of your plan, book the standard fare. But with prices the way they are right now, quite honestly, we’ll be flying SAS, French Bee, and hopefully Norse Atlantic soon. Read about those options below.

Sample fares in Google Flights breaking down the key differences for United Airlines business fares

👉 Cheap Premium Economy Flights to Europe: 3 Ways to Save Big

How to Fly Polaris Without Paying Polaris Fares

Book the standard Premium Plus fare, then watch for the Polaris upgrade prices to drop. You can look on the seat map on the United app. We’ve typically paid around $500 per person per leg.

That puts a lie-flat seat within reach for well under the cash Polaris fare, which can cost more than $6,000. The offers are best within 72 hours of departure, and sometimes right at check-in. United’s app makes it easy to upgrade without calling anyone.

The catch is the fare type. Now, if you book the base premium economy fare to save a few hundred dollars, you lose the ability to upgrade entirely.

We love United Polaris when we can get a good upgrade deal

The Boeing 767 Is Still a Rare Score

We flew United to Amsterdam in basic economy back in 2019 and paid $600 round trip plus $25 each leg for seats. While the price might be higher today, United still flies a Boeing 767 on this route with a 2-3-2 economy layout. This is the only way we’ll still fly basic economy.

We don’t check bags. It includes a carry-on. The meal came with beer and wine, and the service was great. And the most important thing is you still get couples seats on the side.

The 767 is still operating on some transatlantic routes on United and Delta, though it’s rare now. When you find one, economy is a completely different experience than the 3-4-3 you get on most widebodies. This is the one situation where we’d book basic economy for the right price, because the seat is good enough on its own that there’s less reason to pay more for comfort, especially if you’re not checking a bag.

On a 3-4-3, we start looking at Premium Plus or a different airline.

Pro Tip: Check the aircraft before you pick a fare. Look it up on SeatMaps or AeroLOPA. The fare class tells you what your ticket allows. The aircraft tells you what your seats will feel like. Aircraft swaps happen, however, so this is not guaranteed, but it’s something to know.

👉 Economy vs. Premium Economy for International Flights: Which Is Worth It?

Which United Fare Should You Book?

United Basic Economy: Only if you’re carry-on only, you don’t need to change your plans, and ideally you’re on a 767.
United Economy: You get a checked bag, seat selection, more flexibility, and the ability to upgrade later.
Untied Economy Plus: This is worth it if you’re tall, really want extra legroom and comfort, it’s free with your elite status, or Premium Plus is significantly more expensive.
United Premium Plus: This is the one we prefer if the price is right. The seat, amenities, and perks are better, and the standard fare makes the Polaris upgrade an option. But recently it’s just been too expensive to justify.
United Polaris: We’ve thoroughly enjoyed United Polaris at the upgrade price from Premium Plus. At the full cash fare, we’d go with other airlines.

United Fare Types FAQ

Is Basic Economy a Different Seat on United?

No. Basic economy is a fare type, not a cabin. You sit in the same economy seat as everyone else. The difference is that seat selection costs extra, you can’t upgrade or change your ticket, and the first checked bag can be $180.

What Is Base Premium Economy on United?

It’s a restricted version of the Premium Plus fare. You get the same seat, but seat selection costs extra and you cannot upgrade to Polaris. But it saves a few hundred dollars.

Can You Upgrade From Basic Economy on United?

No. Basic economy fares are not upgrade eligible. As of 2026, the same applies to basic premium economy fares, which is a newer change you should know about.

Is United Economy Plus Worth It?

It depends on what your priorities are. You get three more inches of legroom and one more inch of recline, which helps if you’re tall. It’s still the same 17-inch-wide seat in the same 3-4-3 cabin, so if the problem is being squeezed next to a stranger, it won’t fix that.

How Much Does It Cost to Upgrade to Polaris?

We’ve typically paid around $500-$800 per person per leg to upgrade from a standard Premium Plus fare. Offers appear best within 72 hours of departure. Now, you must book the standard fare, not the base fare, to stay eligible.