Delta One Seats Guide: Every Aircraft Ranked (And How to Avoid the Bad Ones)

Updated: January 2026 · 8 min read

Not all Delta One seats are created equal — and Delta doesn't make this easy to figure out.

Book the wrong flight and your $5,000 "lie-flat business class" ticket gets you a 2-2-2 configuration from 2007 where you're climbing over your neighbor to use the bathroom. Book the right one and you're in a Delta One Suite with a closing door that rivals international first class.

This is the complete guide to Delta One aircraft, seat configurations, and how to guarantee you get the good plane.

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Quick Answer: Which Delta Planes Have the Best Delta One Seats?

Best Delta One seats (with closing doors):

• ✅ Airbus A350-900 — Delta One Suites
• ✅ Airbus A330-900neo — Delta One Suites

Good Delta One seats (no door, but modern):

• ✅ Airbus A330-300 (retrofitted)
• ✅ Boeing 767-400ER

Avoid if possible:

• ⚠️ Boeing 767-300 (check configuration — some are 2-2-2)
• ❌ Boeing 757-200 (not lie-flat, domestic first class only)

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Delta One Suites vs Regular Delta One: What's the Difference?

The term "Delta One" covers multiple products:

Product	Door?	Configuration	Lie-Flat?
Delta One Suite	✅ Yes	1-2-1	✅ Yes
Delta One (A330-300)	❌ No	1-2-1	✅ Yes
Delta One (767-400)	❌ No	1-2-1	✅ Yes
Delta One (767-300 old)	❌ No	2-2-2	✅ Yes (but middle seats!)
Delta One (757)	❌ No	2-2	❌ No (recliner only)

The Delta One Suite — with an actual closing door — is only available on the A350-900 and A330-900neo aircraft.

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Every Delta One Aircraft Ranked: Best to Worst

#1. Delta One Suite on Airbus A350-900 (Best Delta Business Class Seat)

The A350 Delta One Suite is Delta's flagship business class product and the only one worth comparing to international competitors.

Delta One Suite A350 specs:

• Sliding privacy door (fully enclosed)
• 1-2-1 configuration — direct aisle access every seat
• 78-inch lie-flat bed
• 21 inches wide
• 18.5-inch entertainment screen
• Westin Heavenly bedding

Routes with Delta One Suite A350:

• JFK to Los Angeles (LAX), San Francisco (SFO)
• Atlanta to London, Paris, Amsterdam, Tokyo
• Los Angeles to Sydney, Tokyo, Seoul
• Detroit to major Asian destinations

Verdict: This is the Delta One product shown in advertisements. Modern, competitive, worth paying for.

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#2. Delta One Suite on Airbus A330-900neo

Identical Delta One Suite product as the A350. Same closing door, same 1-2-1 layout, same experience.

Routes with Delta One Suite A330-900neo:

• Transatlantic routes from JFK, Boston, Seattle
• JFK-LAX premium transcontinental (sometimes)

Verdict: Equally excellent as A350. If you see "A339" on your booking, you're getting Suites.

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#3. Delta One on Airbus A330-300 (Retrofitted)

The retrofitted A330-300 Delta One has the Suite-style seat but without the closing door.

Delta One A330-300 specs:

• No privacy door
• 1-2-1 configuration — direct aisle access
• Same seat shell as Suites
• Modern finishes and IFE

Verdict: 90% of the Suite experience. You lose the door but keep everything else.

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#4. Delta One on Boeing 767-400ER

The 767-400 Delta One uses older Thompson Vantage seats in a herringbone 1-2-1 layout.

Delta One 767-400 specs:

• Herringbone 1-2-1 configuration
• Lie-flat (though some find it slightly angled)
• Older entertainment system
• Narrower than Suites

Routes: Transatlantic to secondary European cities, some South American routes.

Verdict: Solid B-tier product. Nothing exciting, but direct aisle access and lie-flat.

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#5. Delta One on Boeing 767-300ER — CHECK CONFIGURATION

⚠️ This is where it gets dangerous.

The 767-300 comes in TWO configurations:

767-300 Configuration 1 (Acceptable): 1-2-1 herringbone layout, similar to 767-400.

767-300 Configuration 2 (Avoid): 2-2-2 layout with middle seats. No direct aisle access. You or your neighbor may be climbing over each other.

How to check Delta 767-300 seat configuration:

1. Go to Delta.com and pull up your flight
2. Click "View Seats" to see the seat map
3. If business class shows 2-2-2, that's the old configuration
4. Use SeatGuru.com for detailed layouts

Verdict: The 2-2-2 767-300 is genuinely bad and should be avoided unless deeply discounted.

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#6. "Delta One" on Boeing 757-200 (NOT Real Delta One)

The 757-200 sometimes shows as "Delta One" on premium transcontinental routes, but this is domestic first class, not international business class.

What you actually get:

• 2-2 recliner seats (NOT lie-flat)
• Domestic first class service
• Maybe 170-degree recline maximum
• No Suites, no doors, no lie-flat bed

Verdict: If you booked expecting lie-flat Delta One and got a 757, you were misled. This is domestic first class with better marketing.

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How to Check Which Delta One Seat You're Getting

Before Booking:

1. Look for aircraft type on Delta.com flight results
2. Check the seat map — click "View Seats" before purchasing
3. Cross-reference with SeatGuru for detailed configurations

Aircraft codes to know:

• 359 = A350-900 (Suites ✅)
• 339 = A330-900neo (Suites ✅)
• 333 = A330-300 (good, no door)
• 764 = 767-400ER (good)
• 763 = 767-300ER (check config!)
• 757 = 757-200 (not lie-flat ❌)

After Booking:

Delta changes aircraft frequently. Protect yourself:

1. Use Flighty app — get alerts for equipment changes
2. Check ExpertFlyer — monitors your flight daily
3. Re-check 24 hours before — equipment swaps happen last-minute

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Delta One Routes: Which Flights Get the Best Planes?

Routes Almost Always Get Delta One Suites:

Route	Typical Aircraft
JFK → LAX	A350 or A330-900neo
JFK → SFO	A350 or A330-900neo
ATL → London (LHR)	A350
ATL → Paris (CDG)	A350 or A330-900neo
LAX → Sydney	A350
LAX → Tokyo (HND/NRT)	A350
ATL → Seoul (ICN)	A350

Routes Higher Risk of Older Aircraft:

Route	Watch Out For
Secondary US cities → Europe	767-300
Any route → South America	767-400 or 767-300
Seasonal/off-peak flights	Equipment downgrades

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Bottom Line: How to Always Get Good Delta One Seats

1. Book A350 or A330-900neo routes — These guarantee Delta One Suites with doors
2. Check your aircraft before paying — Never book blindly
3. Avoid 767-300 unless you verify 1-2-1 layout — The 2-2-2 configuration is a dealbreaker
4. Monitor for equipment changes — Use Flighty or ExpertFlyer
5. 757 is NOT real Delta One — Don't expect lie-flat

Delta has an excellent business class product — when you know how to find it. The A350 Delta One Suite competes with anyone in the industry. The trick is making sure that's actually what you're booking.