Widest Economy Seats by Aircraft Type
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Which aircraft offer the most generous economy seat width.
Contents
Why Seat Width Matters
Economy seat width is measured in inches from armrest to armrest and directly impacts your comfort on any flight longer than an hour. The industry standard has quietly shrunk over the past two decades as airlines moved from 8-abreast to 9-abreast or even 10-abreast configurations to squeeze more revenue from each aircraft. A difference of just one inch can mean the difference between touching your neighbor's elbow or not.
Most economy passengers sit in seats between 16.5 and 18.5 inches wide. Anything below 17 inches is considered tight; above 18 inches is genuinely comfortable. The aircraft type flying your route matters as much as the airline brand.
Aircraft Rankings by Economy Seat Width
Seat width varies dramatically by aircraft type and how each airline configures it. The following reflects typical economy configurations:
| Aircraft | Typical Config | Seat Width | Rating |
|---|---|---|---|
| Boeing 767-300 | 7-abreast | 20.0–21.0 in | Excellent |
| Airbus A330-200/300 | 8-abreast (2-4-2) | 17.4–18.5 in | Good |
| Boeing 787-8/9 | 9-abreast (3-3-3) | 17.0–17.5 in | Good |
| Airbus A350-900 | 9-abreast (3-3-3) | 17.4–18.0 in | Good |
| Boeing 777-300ER | 9-abreast (3-3-3) | 17.0–17.5 in | Average |
| Boeing 777-300ER | 10-abreast (3-4-3) | 16.5–17.0 in | Tight |
| Airbus A380 | 10-abreast (3-4-3) | 17.0–17.5 in | Average |
| Boeing 737-800 | 6-abreast (3-3) | 17.0–17.3 in | Average |
| Airbus A321neo | 6-abreast (3-3) | 17.6–18.0 in | Good |
9-Abreast vs 10-Abreast: The Critical Difference
The Boeing 777 debate illustrates the issue perfectly. The fuselage is wide enough to comfortably seat nine passengers per row. However, many airlines including United, Air France, and Cathay Pacific configure their 777s with 10-abreast seating, sacrificing roughly an inch of width per seat. A few premium carriers like Lufthansa and Singapore Airlines keep their 777s at 9-abreast, providing noticeably more shoulder room.
Similarly, the Boeing 787 Dreamliner was designed with a wider fuselage to allow 8-abreast seating at a comfortable width, but most airlines install 9-abreast seats. Only a handful of airlines such as Air New Zealand and some ANA configurations maintain 8-abreast on the 787.
Airline Variations on the Same Aircraft
Airlines can configure the same aircraft type very differently. On the Airbus A380, Singapore Airlines offers 18.0-inch economy seats in a 3-4-3 layout, while some configurations on other carriers drop to 17.2 inches. Similarly, Japan Airlines (JAL) fits wider seats on its 787 fleet compared to the industry average.
- Best economy width on widebody: Air New Zealand 787 (8-abreast, 18.5 in), JetBlue A321 (18.4 in)
- Avoid on 777: United, Cathay Pacific 10-abreast (16.5–17.0 in)
- Domestic standout: Southwest 737 (17.3 in, no middle seat squeeze since no assigned seating pressure)
How to Find Seat Width Before You Book
Use SeatGuru.com or SeatMaestro.com and search by flight number to see the exact aircraft configuration and seat dimensions. Always check the specific aircraft, not just the model, since airlines sometimes swap between subvariants. Google Flights shows the aircraft type in search results, and you can filter by it on some booking platforms.