The A320 typically seats 150 to 180 passengers in a 6-across cabin layout

The Airbus A320 is one of the most common commercial aircraft in the world, and its seating arrangement reflects a design choice made in the 1980s that airlines still use today. The cabin is divided into two decks — a main deck below and an upper deck (called the flight deck or flight engineer's station) above — but passengers sit only on the main deck. That main deck is arranged with six seats across: three on the left side of the aisle, three on the right side.

The exact number of seats varies by airline and configuration. A high-density layout can fit 180 passengers; a more spacious arrangement might hold 150. Most airlines configure their A320s somewhere in between, typically around 160 to 170 seats. The difference comes down to how many rows the airline installs and how much legroom they leave between rows.

This 6-across layout is narrower than larger aircraft like the Boeing 777 (which uses 10 seats across) but wider than regional jets (which use 2 or 3 across). That middle ground is one reason the A320 became so popular with airlines — it balances passenger capacity with fuel efficiency and the ability to land at smaller airports.

Key Takeaways

  • The A320 cabin has six seats per row: three on each side of a single center aisle, arranged in a 3-3 configuration.
  • Airlines typically install between 150 and 180 seats total, depending on row pitch (the distance between rows) and their chosen comfort level.
  • Seat width on an A320 is roughly 17 to 18 inches, which is standard for narrow-body aircraft but narrower than wide-body jets.
  • The cabin is divided into sections — usually economy, and sometimes premium economy or business class — but the physical 6-across layout remains the same throughout.
  • Seat selection, legroom, and exit row availability depend on the specific airline's configuration, not on the aircraft type alone.

Seat Width and Spacing on the A320

A standard A320 seat is approximately 17 to 18 inches wide, measured from armrest to armrest. That width is consistent across most airlines flying the A320, because the fuselage diameter — the width of the aircraft body itself — is fixed at about 3.76 meters (12 feet 4 inches). Divide that by six seats, and you get roughly the same width on every airline.

Legroom (called pitch in the airline industry) varies much more. Economy pitch on an A320 ranges from 28 to 32 inches, depending on the airline. Some carriers, particularly low-cost airlines, use 28 inches; full-service carriers often use 31 or 32 inches. Premium economy or business class seats on an A320 are wider and have more pitch, but fewer of them fit in the cabin, so airlines trade quantity for comfort in those sections.

The armrests between seats are fixed to the fuselage, not to the seats themselves, so they do not move. This matters if you are in a middle seat — you cannot adjust the armrest to claim more space. Window and aisle seats have one armrest that does move, giving you slightly more flexibility.

How Airlines Divide the Cabin Into Classes

The A320's 6-across layout does not change, but airlines use it differently depending on their business model. A low-cost carrier like Southwest or Ryanair fills the entire cabin with economy seats in a 3-3 layout and installs 180 or more seats. A full-service carrier like American or Lufthansa might install 12 to 16 business class seats in the front (often in a 2-2 layout using wider seats), then 20 to 30 premium economy seats (still 3-3 but with more pitch), then the rest in standard economy.

The physical cabin does not change — it is still 6 seats wide — but the airline reconfigures how many rows of each class fit inside. A business class section might have only 4 rows; premium economy might have 8 rows; economy fills the rest. This is why the same aircraft type can feel very different depending on which airline operates it.

Some airlines also use the A320 for regional routes with fewer passengers, so they might install only 120 to 140 seats total, leaving more space between rows for comfort. This is less common but happens on thinner routes or when an airline wants to differentiate itself on a competitive route.

Exit Rows and Seat Restrictions

The A320 has four emergency exits over the wings (two on each side) and two doors at the front and back of the cabin. Seats directly in front of the over-wing exits have no seat in front of them — passengers in those rows have extra legroom but cannot recline their seats. Airlines call these "exit row seats," and they are often available for a fee or as a perk for frequent flyers.

Federal aviation rules require that passengers in exit rows be able to reach the exit, understand English-language safety instructions, and be willing to help in an emergency. Airlines enforce this by asking exit row passengers to confirm they meet these requirements at check-in or at the gate. Some airlines restrict exit row seats to passengers over a certain age or exclude passengers traveling with small children.

The exact row numbers and seat letters for exit rows vary by airline configuration, so you cannot predict them without knowing which airline operates the flight. Your airline's website or seat map will show which seats are exit rows and what restrictions explore.

Galley and Lavatory Placement

The A320 has one galley (kitchen area) at the front of the cabin and one at the rear. The front galley is typically smaller and used mainly for beverage service; the rear galley is larger and used for meal preparation on longer flights. Lavatories are usually located near the galleys — one or two at the front, one or two at the rear, and sometimes one in the middle of the cabin depending on the airline's configuration.

The placement of galleys and lavatories affects which rows are available for seating. Airlines cannot install a seat where a galley or lavatory needs to go, so the total number of rows is reduced by the space these facilities take up. This is another reason why the same aircraft type can have different total seat counts across airlines — some use larger galleys or install more lavatories, which reduces the number of rows available for passengers.

If you are sensitive to noise or odor from lavatories, you can check your airline's seat map to see where they are located and avoid sitting directly in front of or behind them. Most airlines show galley and lavatory locations on their online seat selection tool.

Overhead Bin Space and Seat Pitch Trade-offs

The A320 has overhead bins above each row of seats, but the bins are not equally sized throughout the cabin. Bins above exit rows are smaller because the exit door takes up space. Bins above the first few rows of economy are sometimes smaller if the airline has installed a galley or bulkhead (a wall separating cabin sections) nearby.

Airlines that reduce pitch to 28 inches to fit more seats often have smaller overhead bins as well, because the bins are proportional to the fuselage width and the space available. This is why low-cost carriers that pack more seats into an A320 often charge for carry-on bags — there straightforward is not enough bin space for every passenger to bring a full-size roller bag.

Full-service carriers with 31 or 32 inches of pitch typically have larger overhead bins and include at least one carry-on bag in the ticket price. The trade-off is fewer total seats and higher ticket prices to cover the cost of operating the aircraft.

Differences Between A320 Variants

Airbus makes several versions of the A320 family: the A318 (smaller, fewer seats), the A319 (slightly smaller than the A320), the A320 itself (the most common), and the A321 (longer, more seats). All of them use the same 6-across cabin width, but the A321 is about 7 meters (23 feet) longer, so it can hold 180 to 220 passengers depending on configuration.

From a passenger perspective, the differences are subtle. A longer aircraft means more rows, but the seat width and pitch are determined by the airline, not by which variant you are flying. An A319 with 32 inches of pitch will feel more spacious than an A321 with 28 inches of pitch, even though the A321 is longer.

You can usually find out which variant you are flying by checking your airline's booking confirmation or by looking up the flight number on a site like FlightRadar24 or your airline's fleet information. Knowing the variant helps you understand how many seats the aircraft can hold, but it does not tell you how many the airline actually installed or how much legroom you will have.

Frequently Asked Questions

Can I request a specific seat on an A320?

Yes. Most airlines allow you to select your seat during booking or check-in, either free or for a fee. Window and aisle seats often cost extra. Exit row seats with extra legroom usually cost more. Your airline's website shows which seats are available and what fees explore.

Are middle seats on an A320 narrower than on other aircraft?

No. The seat width is the same across all six seats in a row. The middle seat feels more cramped because you have armrests on both sides and no access to the aisle or window, but the actual seat cushion is the same width as the window and aisle seats.

Do all A320s have the same number of seats?

No. Airlines configure each A320 differently based on their route and business model. The same aircraft type can have anywhere from 150 to 180 seats. Check your airline's seat map for the specific flight you are booked on to see the exact configuration.

Is the A320 smaller than other commercial aircraft?

The A320 is a narrow-body aircraft, meaning it has a single deck with one aisle. Wide-body aircraft like the Boeing 777 or Airbus A350 have two aisles and can fit 10 or more seats across. The A320 is smaller in width but comparable in length to some wide-body jets, so it can carry a similar number of passengers on shorter routes.

What is the difference between pitch and legroom?

Pitch is the distance from one seat back to the next seat back. Legroom is the space between your seat back and the seat in front of you. They are related but not identical — a seat with a thinner back can have more legroom even with the same pitch. Airlines usually advertise pitch, not legroom, so check both if you are comparing comfort.