Is Aer Lingus or Delta better to Europe?

Delta scores 8/10 against Aer Lingus at 7.3/10 on seat, screens, lounge and fare. On the four dimensions we can verify, Aer Lingus wins 1 and Delta wins 2. Service and food are not scored here because they cannot be read off a spec sheet.

Which is cheaper, Aer Lingus or Delta?

On the 13 routes where both were priced for the same week (November 8–14, 2026), Aer Lingus was cheaper on 8 and Delta on 5. Every pair of fares is the same departure and return date in the same cabin, so the difference is the airline rather than the dates or the cabin.

Does the aircraft change the answer?

Yes. Delta scores 10/10 on the A350 / A330-900 (Delta One Suite) and 8/10 on the 767-300ER. Check the equipment on your date before deciding.

Has Jon flown either of these?

Delta, in business on a Europe route. Aer Lingus has not been flown, so nothing here claims firsthand experience of its cabin.

Head to head

Aer Lingus vs Delta

Delta scores 8/10 against Aer Lingus at 7.3/10 on seat, screens, lounge and fare.

By Jon Miksis · cabin data verified August 30, 2026 · fares for travel November 8–14, 2026

Best product each one flies

Scored on what can be verified. Service, food and ground recovery are absent deliberately: they need someone in the seat, and they live in the reviews rather than here.

One caveat on the Value line, stated rather than buried: the cabin scores describe a business product and the fares behind Value are economy. A carrier that prices economy aggressively generally prices business the same way, but they are different products. Read Value as how an airline prices against its competitors, not as what its business seat costs.

Aer Lingus

A330-300

Seat: 5/10
IFE: 8/10
Lounge & bags: 10/10
Value: 6/10
Product score: 7.3/10

Delta

A350 / A330-900 (Delta One Suite) · flown by Jon

Seat: 10/10
IFE: 10/10
Lounge & bags: 10/10
Value: 2/10
Product score: 8/10

Dimension by dimension

Seat: Delta
5/10 on the A330-300 against 10/10 on the A350 / A330-900 (Delta One Suite).
IFE: Delta
Screens, connectivity and power: 8/10 against 10/10.
Lounge & bags: level
What the fare includes before you board: 10/10 against 10/10.
Value: Aer Lingus
Median premium over the cheapest carrier on the same route: 6/10 against 2/10.

Where both were priced on the same dates

Every fare is November 8–14, 2026, so a difference between two rows is a difference between two airlines and nothing else. These are economy fares, while the cabin scores above describe the business product — read them as how each airline prices against its competitors, not as what its business seat costs.

Route	Cabin	Aer Lingus	Delta	Cheaper
JFK → DUB	economy	$680	$631	Delta by $49
BOS → DUB	economy	$680	$642	Delta by $38
BOS → BCN	economy	$698	$663	Delta by $35
BOS → CDG	economy	$718	$719	Aer Lingus by $1
BOS → AMS	economy	$748	$1226	Aer Lingus by $478
JFK → FCO	economy	$761	$902	Aer Lingus by $141
JFK → ZRH	economy	$764	$1624	Aer Lingus by $860
JFK → AMS	economy	$772	$1181	Aer Lingus by $409
BOS → EDI	economy	$852	$778	Delta by $74
BOS → LHR	economy	$794	$815	Aer Lingus by $21
JFK → EDI	economy	$921	$819	Delta by $102
LAX → AMS	economy	$959	$1366	Aer Lingus by $407
JFK → AMS	business	$5223	$11981	Aer Lingus by $6758

What happens if the aircraft swaps

Both carriers are paying-the-same-fare-either-way propositions on some frames. The worst product each one flies:

Aer Lingus

A330-300

Seat: 5/10
IFE: 8/10
Lounge & bags: 10/10
Value: 6/10
Product score: 7.3/10

Delta

767-300ER · flown by Jon

Seat: 8/10
IFE: 10/10
Lounge & bags: 10/10
Value: 2/10
Product score: 7.5/10

Aer Lingus: 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.

Delta: Same 1-2-1 lie-flat, no privacy door.

Common questions

Is Aer Lingus or Delta better to Europe?: Delta scores 8/10 against Aer Lingus at 7.3/10 on seat, screens, lounge and fare. On the four dimensions we can verify, Aer Lingus wins 1 and Delta wins 2. Service and food are not scored here because they cannot be read off a spec sheet.
Which is cheaper, Aer Lingus or Delta?: On the 13 routes where both were priced for the same week (November 8–14, 2026), Aer Lingus was cheaper on 8 and Delta on 5. Every pair of fares is the same departure and return date in the same cabin, so the difference is the airline rather than the dates or the cabin.
Does the aircraft change the answer?: Yes. Delta scores 10/10 on the A350 / A330-900 (Delta One Suite) and 8/10 on the 767-300ER. Check the equipment on your date before deciding.
Has Jon flown either of these?: Delta, in business on a Europe route. Aer Lingus has not been flown, so nothing here claims firsthand experience of its cabin.

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