The 787 has three main cabin layouts, and which one you're on depends on the airline

The Boeing 787 Dreamliner comes in two fuselage sizes — the 787-8 and the 787-9 — and airlines configure the interior differently depending on their route network and business model. There is no single "787 seating configuration." Instead, each airline decides how many seats go in each cabin class, how wide the seats are, and whether to include premium economy at all. A 787-8 might carry 242 passengers in one airline's layout and 330 in another's, depending on whether the airline prioritizes premium cabins or economy density.

The physical cabin is the same; the seating is not. Before you book, you need to know which airline operates the flight and what that specific airline has chosen to do with the 787's interior space.

Key Takeaways

  • Airlines configure their own 787 cabins, so seat count and cabin class mix vary widely by carrier — there is no standard 787 layout.
  • The 787-8 is smaller than the 787-9, and each airline uses that space differently for first class, business class, premium economy, and economy.
  • The 787's cabin width allows airlines to fit either 9 or 10 seats across in economy, which significantly changes the passenger experience.
  • You can find the exact seating map for your flight by entering your airline and flight number into seat-selection tools or checking the airline's website directly.

Why airlines configure the 787 differently

Boeing designed the 787 with a wider cabin than older aircraft like the 777, but it did not dictate how airlines must use that space. An airline flying long international routes might install 40 business-class seats and 200 economy seats. An airline flying shorter regional routes might remove business class entirely and install 330 economy seats. The same aircraft can be optimized for profit in completely different ways.

The airline's route strategy, fuel costs, and revenue model all shape the decision. A carrier that sells premium cabins at high prices will configure for comfort and fewer seats. A carrier that competes on price will maximize economy density. Neither is the "correct" configuration — they are business choices.

The two fuselage sizes and what they hold

The 787-8 is the original, smaller model. It is roughly 186 feet long and typically carries between 242 and 330 passengers depending on cabin mix. The 787-9 is stretched by about 20 feet and typically carries between 280 and 330 passengers. The extra length in the 787-9 usually goes to premium cabins or extra economy rows, not to a proportional increase in total seats.

Both aircraft have the same cabin width — about 19 feet 4 inches inside. That width allows airlines to fit either 9 or 10 seats across in economy. A 9-abreast layout (3-3-3) is more spacious; a 10-abreast layout (3-4-3) is denser. Most airlines choose 9-abreast on the 787 because the cabin width makes 10-abreast feel cramped, but some carriers do use 10-abreast on certain routes.

Common cabin class breakdowns you will see

A typical long-haul 787-9 might have 60 business-class seats, 24 premium economy seats, and 206 economy seats. A different airline's 787-9 might have 48 business-class seats, 0 premium economy seats, and 282 economy seats. A regional 787-8 might have 0 business-class seats, 0 premium economy seats, and 242 economy seats. The variation is enormous.

Business class on the 787 typically uses a 1-2-1 configuration (one seat on the left, two in the middle, one on the right), which gives every passenger direct aisle access. Premium economy, when offered, is usually 2-3-2 or 2-2-2. Economy is most commonly 3-3-3 but occasionally 3-4-3.

How to find the exact seating map for your flight

The fastest way is to go directly to your airline's website, enter your booking reference and last name, and look at the seat map in the manage booking section. The map will show you the exact layout, which rows are which cabin class, which seats are already taken, and which are open for selection.

If you do not have a booking yet, you can use third-party seat-map tools like SeatGuru or Seatmaestro. Enter the airline and aircraft type (787-8 or 787-9), and the tool will show you the configuration that airline uses. These tools are maintained by users and are usually accurate, but the airline's own map is always the source of truth.

Some airlines charge for seat selection, and some offer it free. Premium seats (extra legroom, exit rows, or seats near the front) usually cost extra. The seat map will tell you which seats are available for free and which require a fee.

What the seat width and pitch mean for comfort

Seat width is how wide the seat cushion is, usually measured in inches. Seat pitch is the distance from one seat back to the seat back in front of it — essentially your legroom. On the 787, economy seat width is typically 17 to 17.5 inches, and pitch is typically 31 to 32 inches. Business class is much wider (20 to 21 inches) and has much more pitch (6 to 6.5 feet, often with a lie-flat bed).

These numbers matter more than the total seat count. An airline with 280 seats and 32-inch pitch will feel more comfortable than an airline with 250 seats and 30-inch pitch. The seat map will not always show pitch, but you can find it on the airline's website or on SeatGuru.

Why some airlines choose 10-abreast on the 787

A few airlines have configured their 787s with 10 seats across in economy (3-4-3 instead of 3-3-3). This is controversial because the middle four seats are narrower and the cabin feels tighter. However, it allows the airline to carry about 50 more passengers per flight, which increases revenue on high-demand routes.

If you are booking a 787 with a carrier known for dense seating, check the seat map before you commit. The difference between 9-abreast and 10-abreast is noticeable, and you may prefer to pay more for a different airline or cabin class rather than sit in a 10-abreast middle seat for 8 or 10 hours.

Frequently Asked Questions

Is the 787 more comfortable than older planes?

The 787's wider cabin, larger windows, and better air pressure and humidity do make the experience more comfortable for many passengers. However, comfort also depends on the airline's seating configuration. A 10-abreast 787 economy seat may feel less comfortable than a 9-abreast 777 economy seat, even though the 787 cabin is wider overall.

Can I see the seat map before I book?

Yes. Most airlines show the seat map during the booking process, and you can see it on their website even if you do not have a reservation yet. Third-party tools like SeatGuru also show 787 configurations by airline, though the airline's own map is more current.

Do all 787s have premium economy?

No. Premium economy is optional, and many airlines do not offer it on their 787s. Some airlines offer it only on certain routes. Check your airline's website or the seat map for your specific flight to see whether premium economy is available.

What is the difference between the 787-8 and 787-9?

The 787-9 is about 20 feet longer, which usually translates to more seats overall. However, both aircraft have the same cabin width, so the seat width and pitch depend on the airline's configuration, not the aircraft size. A 787-8 and a 787-9 from the same airline may have identical economy seat dimensions.

Why do some airlines charge for seat selection on the 787?

Seat selection fees are a revenue strategy, not a 787-specific feature. Airlines charge more for seats with extra legroom, exit rows, or preferred locations (front of cabin, window seats). Standard economy seats are sometimes free to select, depending on the airline's policy.