Aer Lingus vs KLM
KLM scores 8/10 against Aer Lingus at 7.3/10 on seat, screens, lounge and fare.
By Jon Miksis · cabin data verified · 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
KLM
787-9 / 787-10 / 777 (World Business Class)
- Seat
- 10/10
- IFE
- 8/10
- Lounge & bags
- 10/10
- Value
- 4/10
- Product score
- 8/10
Dimension by dimension
Seat: KLM
5/10 on the A330-300 against 10/10 on the 787-9 / 787-10 / 777 (World Business Class).
IFE: level
Screens, connectivity and power: 8/10 against 8/10.
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 4/10.
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 | KLM | Cheaper |
|---|---|---|---|---|
| JFK → BER | economy | $660 | $1049 | Aer Lingus by $389 |
| JFK → DUB | economy | $680 | $662 | KLM by $18 |
| BOS → CDG | economy | $718 | $750 | Aer Lingus by $32 |
| BOS → AMS | economy | $748 | $1226 | Aer Lingus by $478 |
| JFK → ZRH | economy | $764 | $1655 | Aer Lingus by $891 |
| JFK → AMS | economy | $772 | $1181 | Aer Lingus by $409 |
| JFK → GLA | economy | $773 | $840 | Aer Lingus by $67 |
| ORD → BOD | economy | $1280 | $814 | KLM by $466 |
| BOS → BER | economy | $836 | $958 | Aer Lingus by $122 |
| BOS → EDI | economy | $852 | $850 | KLM by $2 |
| JFK → EDI | economy | $921 | $850 | KLM by $71 |
| BOS → GLA | economy | $895 | $890 | KLM by $5 |
| LAX → AMS | economy | $959 | $1362 | Aer Lingus by $403 |
| ORD → EDI | economy | $1234 | $1035 | KLM by $199 |
| JFK → PRG | economy | $1117 | $1256 | Aer Lingus by $139 |
| ORD → AMS | economy | $1172 | $1292 | Aer Lingus by $120 |
| 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
KLM
A330-200 / A330-300
- Seat
- 5/10
- IFE
- 8/10
- Lounge & bags
- 10/10
- Value
- 4/10
- Product score
- 6.8/10
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.
KLM: 2-2-2 lie-flat: the window seat requires stepping over a neighbor.
Common questions
- Is Aer Lingus or KLM better to Europe?
- KLM 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 KLM wins 1. Service and food are not scored here because they cannot be read off a spec sheet.
- Which is cheaper, Aer Lingus or KLM?
- On the 17 routes where both were priced for the same week (November 8–14, 2026), Aer Lingus was cheaper on 11 and KLM on 6. 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. KLM scores 10/10 on the 787-9 / 787-10 / 777 (World Business Class) and 5/10 on the A330-200 / A330-300. Check the equipment on your date before deciding.
- Has Jon flown either of these?
- Neither, so this page is product facts and fares only. Any review we publish of either will be labeled Researched until that changes.
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