Aer Lingus vs Delta
On the best documented aircraft, Aer Lingus scores 5/10 for the business seat and Delta 10/10. The aircraft on your booking decides whether those seats apply.
By Jon Miksis · comparison updated
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What matters for your booking
Business fares
Of 7 shared business routes, Aer Lingus was cheaper on 5, Delta on 2, and 0 were the same price.
Economy fares
Of 24 shared economy routes, Aer Lingus was cheaper on 11, Delta on 13, and 0 were the same price.
Start with your route and cabin. A fare advantage in economy does not establish a business-class bargain, and a better seat does not establish that a connection or a higher fare is worth it for your trip.
The business seats being compared
These are each airline’s best-scoring documented business aircraft. The fare grid does not identify aircraft, so the seat below is not promised with any fare in the table. Service and food require a separate firsthand review.
Aer Lingus
A330-300
- Seat layout
- 2-2-2
- Fully flat bed
- Yes
- Direct aisle access at every seat
- No
- Privacy door
- No
- Seat score
- 5/10
- Wi-Fi
- Paid in the recorded product
- Lounge access
- Included in the recorded fare
- Checked bags
- 2
Cabin checked .
Recorded source: Aer Lingus Seats & Cabin pages, A330 seat maps.
Delta
A350 / A330-900 (Delta One Suite)
- Seat layout
- 1-2-1
- Fully flat bed
- Yes
- Direct aisle access at every seat
- Yes
- Privacy door
- Yes
- Seat score
- 10/10
- Wi-Fi
- Free in the recorded product
- Lounge access
- Included in the recorded fare
- Checked bags
- 2
Cabin checked .
Recorded source: Delta One product pages, fleet reporting.
Seat scores describe bed, aisle access and privacy door only. Read the scoring method. A tie does not compare comfort, food, service or reliability.
Check the aircraft on Aer Lingus
A330-300: 5/10 for the seat. A staggered mix of 1-2-1 and 1-2-2 rows, so roughly 90% of seats reach an aisle directly and the paired seats do not. Un-retrofitted ex-Qatar frames are worse again. Recorded August 30, 2026.
A321neo LR / XLR: 5/10 for the seat. Aer Lingus' own site states 60% of seats have aisle access on this aircraft, which contradicts third-party pages calling it 1-2-1. The carrier's figure is the one used here. Four throne seats are the ones worth chasing. Recorded August 30, 2026.
Check the aircraft on Delta
A350 / A330-900 (Delta One Suite): 10/10 for the seat. The 767-300ER runs the same 1-2-1 lie-flat without a privacy door. Every Delta One aircraft keeps direct aisle access, so the variation is the door rather than the seat. Recorded August 30, 2026.
767-300ER: 8/10 for the seat. Same 1-2-1 lie-flat, no privacy door. Recorded August 30, 2026.
Compare the fares and the routing
Each row compares the same airports, cabin, travel dates and observation date. It can still compare a nonstop against a connection. Journey times, aircraft, baggage allowances and change rules were not recorded with these fares; check those before treating the price difference as a saving.
Showing 7 of 7 matched business routes. Round trip per person in USD, for travel November 8–14, 2026.
| Route and observation date | Aer Lingus | Delta | Price difference |
|---|---|---|---|
New York (JFK) → Dublin (DUB) Observed September 1, 2026 Compare all observed airlines | $4,218Nonstop | $6,080Nonstop | Aer Lingus was $1,862 less |
New York (JFK) → Zurich (ZRH) Observed September 1, 2026 Compare all observed airlines | $5,073Connects via DUB | $11,729Nonstop | Aer Lingus was $6,656 less |
Boston (BOS) → Dublin (DUB) Observed September 1, 2026 Compare all observed airlines | $5,480Nonstop | $5,290Nonstop | Delta was $190 less |
Miami (MIA) → Edinburgh (EDI) Observed September 1, 2026 Compare all observed airlines | $7,665Connects via DUB | $7,239Connects via JFK | Delta was $426 less |
San Francisco (SFO) → Edinburgh (EDI) Observed September 1, 2026 Compare all observed airlines | $7,727Connects via DUB | $10,421Connects via JFK | Aer Lingus was $2,694 less |
Raleigh (RDU) → Dublin (DUB) Observed September 1, 2026 Compare all observed airlines | $7,920Nonstop | $7,925Connects via ATL | Aer Lingus was $5 less |
Los Angeles (LAX) → Amsterdam (AMS) Observed September 1, 2026 Compare all observed airlines | $11,057Connects via DUB | $12,456Connects via SLC | Aer Lingus was $1,399 less |
Your airport missing? Check the full route tool for the airlines we observed there. Confirm current fares, journey time, baggage and ticket rules before booking.
Before paying for the ticket
- Check the exact operating airline and seat map on every long flight, including the return. An airline name or business-class label alone does not guarantee a flat bed or aisle access.
- Compare total journey time and connection length. A lower fare may buy a much longer trip.
- Reprice with your bags, preferred seats and change rules included. These observations do not establish that the tickets have identical restrictions.
- Check other airlines on the route. Being cheaper than the other airline on this page does not establish the cheapest fare in the market.
Common questions
- Is Aer Lingus or Delta better in business class to Europe?
- On the best documented aircraft, Aer Lingus scores 5/10 for the business seat and Delta 10/10. The aircraft on your booking decides whether those seats apply. Of 7 shared business routes, Aer Lingus was cheaper on 5, Delta on 2, and 0 were the same price. Service and food are not scored in this comparison. These are observations for travel November 8–14, 2026, not current quotes.
- Which is cheaper, Aer Lingus or Delta?
- Of 7 shared business routes, Aer Lingus was cheaper on 5, Delta on 2, and 0 were the same price. Of 24 shared economy routes, Aer Lingus was cheaper on 11, Delta on 13, and 0 were the same price. Both counts refer to travel November 8–14, 2026. A cheaper fare may involve a connection; compare the itinerary as well as the price.
- Will I get the business seat shown here?
- These cards describe the named aircraft in our cabin records, not a seat guaranteed on every flight. At least one of these airlines has a recorded aircraft or cabin variation. Check the operating airline, seat map and aircraft for every segment before paying; equipment can change. The fare observations do not record the aircraft.
- Has Jon flown these business cabins?
- Aer Lingus business class is not on Jon’s confirmed flown roster. Delta business class is on Jon’s confirmed flown roster. That records the airline and cabin, not every aircraft or itinerary. This page compares documented specifications and dated fares.
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