Delta vs KLM
The best documented business seats both score 10/10. That measures bed, aisle access and privacy door; it does not make the entire cabins identical.
By Jon Miksis · comparison updated
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What matters for your booking
Business fares
Of 36 shared business routes, Delta was cheaper on 24, KLM on 9, and 3 were the same price.
Economy fares
Of 51 shared economy routes, Delta was cheaper on 39, KLM on 8, and 4 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.
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.
KLM
777-200ER / 777-300ER (sliding-door World Business Class)
- 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
- Paid in the recorded product
- Lounge access
- Included in the recorded fare
- Checked bags
- 2
Cabin checked .
Recorded source: KLM World Business Class pages, fleet seat maps.
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 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.
Check the aircraft on KLM
777-200ER / 777-300ER (sliding-door World Business Class): 10/10 for the seat. The door is documented for the refitted 777 product. Do not apply it to every 787 or A330. Check the flight's seat map and ticket type; lounge access and baggage can differ by fare brand. Recorded August 30, 2026.
A330-200 / A330-300: 5/10 for the seat. 2-2-2 lie-flat: the window seat requires stepping over a neighbor. 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 12 of 36 matched business routes. Round trip per person in USD, for travel November 8–14, 2026.
| Route and observation date | Delta | KLM | Price difference |
|---|---|---|---|
Portland (PDX) → Dublin (DUB) Observed September 1, 2026 Compare all observed airlines | $4,104Connects via MSP | $4,130Connects via AMS | Delta was $26 less |
Minneapolis (MSP) → Porto (OPO) Observed September 1, 2026 Compare all observed airlines | $4,259Connects via JFK | $6,525Connects via AMS | Delta was $2,266 less |
Portland (PDX) → Porto (OPO) Observed September 1, 2026 Compare all observed airlines | $4,259Connects via JFK | $6,525Connects via AMS | Delta was $2,266 less |
Portland (PDX) → Lisbon (LIS) Observed September 1, 2026 Compare all observed airlines | $5,832Connects via JFK | $4,794Connects via AMS | KLM was $1,038 less |
Portland (PDX) → Madrid (MAD) Observed September 1, 2026 Compare all observed airlines | $7,988Connects via ATL | $5,490Connects via AMS | KLM was $2,498 less |
Portland (PDX) → Athens (ATH) Observed September 1, 2026 Compare all observed airlines | $5,973Connects via JFK | $5,999Connects via AMS | Delta was $26 less |
Minneapolis (MSP) → Rome Fiumicino (FCO) Observed September 1, 2026 Compare all observed airlines | $5,978Connects via DTW | $6,004Connects via AMS | Delta was $26 less |
Portland (PDX) → Rome Fiumicino (FCO) Observed September 1, 2026 Compare all observed airlines | $5,978Connects via JFK | $6,004Connects via AMS | Delta was $26 less |
Atlanta (ATL) → Rome Fiumicino (FCO) Observed September 1, 2026 Compare all observed airlines | $5,978Connects via DTW | $8,005Connects via AMS | Delta was $2,027 less |
Portland (PDX) → Zurich (ZRH) Observed September 1, 2026 Compare all observed airlines | $5,985Connects via JFK | $6,011Connects via AMS | Delta was $26 less |
Minneapolis (MSP) → Amsterdam (AMS) Observed September 1, 2026 Compare all observed airlines | $6,044Nonstop | $6,044Nonstop | Same price |
Portland (PDX) → Frankfurt (FRA) Observed September 1, 2026 Compare all observed airlines | $6,064Connects via JFK | $6,090Connects via AMS | Delta was $26 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 Delta or KLM better in business class to Europe?
- The best documented business seats both score 10/10. That measures bed, aisle access and privacy door; it does not make the entire cabins identical. Of 36 shared business routes, Delta was cheaper on 24, KLM on 9, and 3 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, Delta or KLM?
- Of 36 shared business routes, Delta was cheaper on 24, KLM on 9, and 3 were the same price. Of 51 shared economy routes, Delta was cheaper on 39, KLM on 8, and 4 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?
- Delta business class is on Jon’s confirmed flown roster. KLM business class is not 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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