transatlantic · 8h 15m · 6,699 km
Chicago to Amsterdam
2 airlines · 2 aircraft ranked
In business class, KLM's World Business Class (787-10) edges out the field with a 6.9/10.In premium economy, United's Premium Plus (767-300ER) edges out the field with a 5.3/10.
Quick pick
Fly KLM. It has 14 more inches of legroom.
If fares are comparable, this is the better cabin.
Fly United. It has free Wi-Fi (paid on KLM).
If fares are comparable, this is the better cabin.
Fly United. It has free Wi-Fi (paid on KLM).
If prices are similar, go with this one.
Select two airlines to compare head-to-head
Data verified June 2026
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Route insights
- In business class, KLM's World Business Class (787-10) edges out the field with a 6.9/10.
- In premium economy, United's Premium Plus (767-300ER) edges out the field with a 5.3/10.
- In economy, United's Economy (767-300ER) edges out the field with a 4.5/10.
Frequently asked
Which is better in business: KLM or United on ORD-AMS?
World Business Class (KLM Royal Dutch Airlines, 787-10) and Polaris Business (United Airlines, 767-300ER) score virtually the same in business: 6.9 vs 6.9/10. The biggest gap is wi-fi — Free Wi-Fi vs Paid Wi-Fi — but neither carrier pulls ahead overall.
Which is better in premium economy: KLM or United on ORD-AMS?
Premium Comfort (KLM Royal Dutch Airlines, 787-10) and Premium Plus (United Airlines, 767-300ER) score virtually the same in premium economy: 5.2 vs 5.3/10. The biggest gap is wi-fi — Free Wi-Fi vs Paid Wi-Fi — but neither carrier pulls ahead overall.
Which is better in economy: KLM or United on ORD-AMS?
Economy (KLM Royal Dutch Airlines, 787-10) and Economy (United Airlines, 767-300ER) score virtually the same in economy: 4.3 vs 4.5/10. The biggest gap is wi-fi — Free Wi-Fi vs Paid Wi-Fi — but neither carrier pulls ahead overall.
What are the best seats in KLM World Business Class on ORD-AMS?
Best: Rows 2-5 window seats for maximum privacy in the reverse herringbone layout. True solo window seats offer the most storage. Avoid: Seat 1A has crew storage access that causes disturbance. Row 10 is near the galley/curtain divider. Reverse herringbone 1-2-1 layout with full aisle access for all seats. Jamco Venture seats are 10-15% lighter than traditional designs. 4K IFE screen. Wifi is paid (8 EUR/hour, 18 EUR full flight; WhatsApp messaging free). Amenity kit includes face cream, lip balm, socks, pen, earplugs, dental kit. Multi-course dining with Dutch cheese course.
What are the best seats in KLM Premium Comfort on ORD-AMS?
Best: Window pairs for couples. Aisle seats in rows 11-12 for quick access. Avoid: Middle seats in the 3-seat center section (D seat). 35-inch pitch with extra recline. Separate dedicated cabin forward of main economy. 13.3-inch IFE screens. Same meal service as economy but with priority boarding and extra legroom. USB and AC power at every seat.
What are the best seats in KLM Economy on ORD-AMS?
Best: Row 17 (bulkhead) has extra legroom but no underseat storage and tray table in armrest. Exit rows for extra legroom. Avoid: Row 17 has no underseat storage. Last rows near galley and lavatories. Middle seats (B, E, H) throughout. Standard 3-3-3 economy layout on the 787-10. 12-inch seatback IFE screens. USB and AC power at every seat. Complimentary meal service with choice of entrees. Pillow and blanket provided. Wifi available for purchase.
What are the best seats in United Polaris Business on ORD-AMS?
Best: Odd-numbered window rows offer the best privacy since they sit farther from the aisle. 11L has great privacy with two windows. 18A is the most secluded seat but lacks a window. Solo travelers should pick A or L positions. Avoid: Seat 1A is reserved as pilot crew rest on transatlantic flights, leaving 45 sellable seats. Row 7 and row 18 have only one window instead of the typical two. 18L has no window at all despite being a window position. Front rows experience more crew traffic. The 1-1-1 layout is unique to the 767's narrower fuselage. All seats have direct aisle access. No doors but staggered layout provides good privacy. 24 aircraft operate this high-J configuration. Panasonic Ku-band WiFi; Starlink retrofit in progress fleet-wide through 2027. Rows 13-14 are skipped in numbering.
What are the best seats in United Premium Plus on ORD-AMS?
Best: Row 20 offers extra legroom as the bulkhead row. Window pairs (A-B and K-L) work well for couples. Avoid: Row 23 is the last row and closest to the economy cabin. Center seats (D-E) in the 2-2-2 layout offer less privacy. Small 22-seat cabin with six-abreast seating, unusual for premium economy. Collins MiQ seats with adjustable headrests and footrests. Complimentary meal service with wine and spirits. Separate lavatory access from economy.
What are the best seats in United Economy on ORD-AMS?
Best: Row 37 is the first economy row and benefits from proximity to lavatories without being right next to them. Aisle seats (C, D, G, H) are easiest for getting up on long flights. Avoid: Row 44 (last row) seats 44DEF and 44KL cannot recline due to the rear galley and lavatory wall. Avoid 44E (center middle) at all costs on transatlantic flights. Only 56 standard economy seats on this high-J configuration, one of the smallest economy cabins on any widebody. The 2-3-2 layout on the 767 is notably more comfortable than 3-3-3 on 787s or 3-4-3 on 777s. Complimentary meals on transatlantic routes.