Is Delta or KLM better to Europe?

Delta and KLM score level at 7.5/10 on verifiable product. On the four dimensions we can verify, Delta 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, Delta or KLM?

On the 87 routes where both were priced for the same week (November 8–14, 2026), Delta was cheaper on 63 and KLM on 24. 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. 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?

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

Head to head

Delta vs KLM

Delta and KLM score level at 7.5/10 on verifiable product.

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: Value is computed from business fares, and a carrier with too few of them does not get a Value score at all. Where you see a dash, we have fewer than three priced business routes for that airline and did not want to invent a figure from one or two — so its product score is the mean of three dimensions rather than four, and it is not directly comparable to a score built on hundreds of fares. The airlines with the most fares behind them are named on the business-class ranking, and where each of these two sits among every carrier we price, on seat and on fare, is on The Best Airlines to Fly to Europe.

Delta

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

Seat: 10/10
IFE: 10/10
Lounge & bags: 10/10
Value: 0/10
Product score: 7.5/10

KLM

787-9 / 787-10 / 777 (World Business Class)

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

Where they actually differ

IFE: Delta
Screens, connectivity and power: 10/10 against 8/10.
Value: KLM
Median premium over the cheapest carrier on the same route: 0/10 against 2/10.

Level on seat and lounge & bags

As almost every pair is. Of the 31 business cabins we have verified, 28 score 8 on screens and power and 29 score 10 on lounge and bags — because those two dimensions describe what a business fare includes rather than which airline sold it to you. Lounge access, two checked bags and a carry-on are close to the definition of the cabin.

The one genuine differentiator on screens is free wifi, and only Delta and JetBlue offer it. Seat and Value are where carriers separate, which is why they lead this page.

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	Delta	KLM	Cheaper
JFK → DUB	economy	$631	$662	Delta by $31
MSP → DUB	economy	$689	$698	Delta by $9
BOS → CDG	economy	$719	$750	Delta by $31
LAX → BCN	economy	$753	$1060	Delta by $307
SFO → MAD	economy	$761	$765	Delta by $4
PDX → FCO	economy	$767	$771	Delta by $4
IAH → BCN	economy	$1265	$776	KLM by $489
BOS → EDI	economy	$778	$850	Delta by $72
PDX → DUB	economy	$783	$787	Delta by $4
PDX → OPO	economy	$788	$792	Delta by $4
PDX → BCN	economy	$791	$796	Delta by $5
PDX → MAD	economy	$792	$797	Delta by $5
PDX → LIS	economy	$796	$800	Delta by $4
SFO → LIS	economy	$806	$807	Delta by $1
MSP → OPO	economy	$808	$812	Delta by $4
PDX → ZRH	economy	$813	$817	Delta by $4
JFK → EDI	economy	$819	$850	Delta by $31
SFO → OPO	economy	$821	$825	Delta by $4
MSP → BCN	economy	$1105	$827	KLM by $278
PDX → CDG	economy	$861	$865	Delta by $4
MSP → MAD	economy	$878	$882	Delta by $4
PDX → MUC	economy	$883	$887	Delta by $4
JFK → OPO	economy	$893	$924	Delta by $31
PDX → FRA	economy	$893	$897	Delta by $4
MSP → MUC	economy	$1241	$906	KLM by $335
PDX → LHR	economy	$908	$912	Delta by $4
SFO → ATH	economy	$915	$919	Delta by $4
MSP → FCO	economy	$923	$927	Delta by $4
PDX → ATH	economy	$937	$941	Delta by $4
SFO → FRA	economy	$943	$947	Delta by $4
MSP → ATH	economy	$956	$960	Delta by $4
LAX → EDI	economy	$963	$1129	Delta by $166
MIA → EDI	economy	$972	$1026	Delta by $54
MSP → EDI	economy	$981	$986	Delta by $5
JFK → ATH	economy	$983	$1014	Delta by $31
ATL → AMS	economy	$1035	$1035	level
SFO → EDI	economy	$1042	$1046	Delta by $4
MSP → ZRH	economy	$1073	$1077	Delta by $4
ATL → OPO	economy	$1222	$1142	KLM by $80
ATL → FCO	economy	$1158	$1167	Delta by $9
PDX → EDI	economy	$1160	$1164	Delta by $4
JFK → AMS	economy	$1181	$1181	level
BOS → AMS	economy	$1226	$1226	level
IAH → AMS	economy	$1296	$1291	KLM by $5
IAD → AMS	economy	$1296	$1291	KLM by $5
IAD → EDI	economy	$1301	$1305	Delta by $4
MSP → AMS	economy	$1311	$1311	level
LAX → AMS	economy	$1366	$1362	KLM by $4
PDX → AMS	economy	$1375	$1371	KLM by $4
JFK → ZRH	economy	$1624	$1655	Delta by $31
ATL → ATH	economy	$2010	$2014	Delta by $4
PDX → DUB	business	$4104	$4130	Delta by $26
MSP → OPO	business	$4259	$6525	Delta by $2266
PDX → OPO	business	$4259	$6525	Delta by $2266
PDX → LIS	business	$5832	$4794	KLM by $1038
PDX → MAD	business	$7988	$5490	KLM by $2498
PDX → ATH	business	$5973	$5999	Delta by $26
MSP → FCO	business	$5978	$6004	Delta by $26
PDX → FCO	business	$5978	$6004	Delta by $26
ATL → FCO	business	$5978	$8005	Delta by $2027
PDX → ZRH	business	$5985	$6011	Delta by $26
MSP → AMS	business	$6044	$6044	level
PDX → FRA	business	$6064	$6090	Delta by $26
PDX → MUC	business	$11804	$6080	KLM by $5724
PDX → CDG	business	$6123	$6149	Delta by $26
MSP → EDI	business	$6331	$6357	Delta by $26
PDX → EDI	business	$6331	$6357	Delta by $26
ATL → OPO	business	$6549	$8865	Delta by $2316
MSP → MAD	business	$6903	$6929	Delta by $26
MSP → BCN	business	$7427	$6928	KLM by $499
MIA → EDI	business	$7239	$7887	Delta by $648
IAH → BCN	business	$7767	$7401	KLM by $366
LAX → EDI	business	$7471	$7497	Delta by $26
ATL → EDI	business	$7527	$10057	Delta by $2530
PDX → LHR	business	$7607	$7634	Delta by $27
IAH → EDI	business	$7726	$7747	Delta by $21
IAD → EDI	business	$7733	$7759	Delta by $26
ORD → OPO	business	$10033	$8141	KLM by $1892
SFO → OPO	business	$8230	$10025	Delta by $1795
SFO → FCO	business	$8756	$8795	Delta by $39
JFK → ZRH	business	$11729	$11760	Delta by $31
BOS → AMS	business	$12256	$11781	KLM by $475
ATL → ATH	business	$11852	$12899	Delta by $1047
JFK → AMS	business	$11981	$11981	level
LAX → AMS	business	$12456	$12451	KLM by $5
PDX → AMS	business	$12465	$12461	KLM by $4
ATL → AMS	business	$12601	$12601	level

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:

Delta

767-300ER · flown by Jon

Seat: 8/10
IFE: 10/10
Lounge & bags: 10/10
Value: 0/10
Product score: 7/10

KLM

A330-200 / A330-300

Seat: 5/10
IFE: 8/10
Lounge & bags: 10/10
Value: 2/10
Product score: 6.3/10

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

KLM: 2-2-2 lie-flat: the window seat requires stepping over a neighbor.

Common questions

Is Delta or KLM better to Europe?: Delta and KLM score level at 7.5/10 on verifiable product. On the four dimensions we can verify, Delta 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, Delta or KLM?: On the 87 routes where both were priced for the same week (November 8–14, 2026), Delta was cheaper on 63 and KLM on 24. 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. 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?: Delta, in business on a Europe route. KLM has not been flown, so nothing here claims firsthand experience of its cabin.

Deal alerts on Delta and KLM

Delta or KLM, whichever drops first

Delta carried a $278 median premium in our grid and KLM $156; the cheaper of the two changes route by route, and neither is cheapest every week. An alert from your airport catches whichever falls under the field, which is a better bet than picking one airline in advance.

I have used Going for six years, and it is how I hear about a fare below the floor before it is gone.

Go Elite for business-class deals Or start on the free plan

Alerts from your home airport on the free plan, no credit card. Premium adds mistake fares and delivers every deal first, with a 14-day free trial; code JON25 takes 25% off. Elite is the tier with business and first class deals.

Affiliate links. We earn a commission if you sign up, at no cost to you. How we handle this. Offer terms as confirmed on 2026-09-04.

Join the Club, free

One email a week: the Europe fares worth acting on, the new transatlantic routes, and first look at the tools. No spam, unsubscribe anytime.