Cabin Brief

Side-by-side airline cabin comparison

transatlantic · 8h 20m · 6,673 km

Detroit to Frankfurt

2 airlines · 2 aircraft ranked

In business class, Lufthansa's Business Class (Allegris) (787-9) leads the field with a 8.6/10.In premium economy, Lufthansa's Premium Economy (787-9) edges out the field with a 5.7/10.

How we score → Last updated June 2026

Quick pick

Best business class:strong pick

Fly Lufthansa. It has a wider seat (22" vs 19.7") and a private suite.

If fares are comparable, this is the better cabin.

Best premium economy:close call

Fly Lufthansa. It scores higher across seat comfort and amenities.

If fares are comparable, this is the better cabin.

Best economy:close call

Fly Delta. It scores higher across seat comfort and amenities.

If prices are similar, go with this one.

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Suite with door · 1-2-1 · 50" pitchAvg. reliability

Suite with door + Wider seat + Longer bed

8.6

Excellent

Seat 9.0·Amenity 7.9

Lie-flat · 1-2-1 · 80" pitchVery reliablePoints: Amex MR

Dine on demand

7.3

Very good

Seat 6.7·Amenity 8.3

Select two airlines to compare head-to-head

Data verified June 2026

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Airlines on this route

Delta

Lufthansa

Route insights

In business class, Lufthansa's Business Class (Allegris) (787-9) leads the field with a 8.6/10.
In premium economy, Lufthansa's Premium Economy (787-9) edges out the field with a 5.7/10.
In economy, Delta's Main Cabin (A330-200) edges out the field with a 4.8/10.

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Frequently asked

Which is better in business: Delta or Lufthansa on DTW-FRA?

Business Class (Allegris) (Lufthansa, 787-9) beats Delta One (Delta Air Lines, A330-200) in business, scoring 8.6/10 vs 7.3. The deciding factor: a closed suite door vs an open cabin. Delta Air Lines fights back on dining.

Which is better in premium economy: Delta or Lufthansa on DTW-FRA?

Premium Economy (Lufthansa, 787-9) edges out Delta Premium Select (Delta Air Lines, A330-200) in premium economy, scoring 5.7/10 vs 5.3. The deciding factor: 39" of pitch vs 38".

Which is better in economy: Delta or Lufthansa on DTW-FRA?

Main Cabin (Delta Air Lines, A330-200) and Economy (Lufthansa, 787-9) score virtually the same in economy: 4.8 vs 4.8/10. The biggest gap is entertainment — a 12" screen vs 9" screen — but neither carrier pulls ahead overall.

What are the best seats in Delta Delta One on DTW-FRA?

Best: Window seats 1A and 1L offer maximum privacy. Odd-numbered window seats (1A, 3A, 5A) are recessed closer to the window. Center pairs work for couples with divider down. Avoid: Even-numbered window seats are closer to the aisle with less privacy. Last row (row 9) is nearest to the premium economy curtain. 34 reverse herringbone seats with direct aisle access but NO sliding doors — this is Delta One, not Delta One Suite. Smaller 15.4-inch screens vs 18-inch on the A330-900. Same Thompson Vantage XL seat frame as the A339 but without the suite enclosure. 80-inch bed is generous.

What are the best seats in Delta Delta Premium Select on DTW-FRA?

Best: Window doublets (A-B and J-K) are ideal for couples. Row 10 bulkhead has extra legroom. Avoid: Center seat E in any row. Last row nearest economy curtain. 21 seats in 3 rows with 2-3-2 layout. Same Premium Select product as the A339 but fewer seats. Enhanced meal, premium amenity kit, dedicated flight attendant.

What are the best seats in Delta Main Cabin on DTW-FRA?

Best: Comfort+ rows offer 34-inch pitch with extra legroom and priority boarding. Window doublets avoid middle seats entirely. Avoid: Last 2-3 rows near rear lavatories. Center block middle seats (D and E) on long flights. 168 economy seats including 24 Comfort+ with 34-inch pitch. 2-4-2 layout is wider-body friendly — no 3-abreast middle-seat risk on the sides. 9-inch seatback screens (smaller than the A339 10-inch). Delta Sync free Wi-Fi for SkyMiles members.

What are the best seats in Lufthansa Business Class (Allegris) on DTW-FRA?

Best: Extra Long Bed seat for 87-inch bed length. Five seat types: Suite (door), Extra Space, Extra Long Bed (87 in), window privacy, center couple. 27-inch IFE is industry-leading. Only 28 seats makes this a small, premium cabin.

What are the best seats in Lufthansa Premium Economy on DTW-FRA?

Best: Window pairs for 2-across privacy. Avoid: Center middle seat. 2-3-2 premium economy — better than 2-4-2. No quad center block.

What are the best seats in Lufthansa Economy on DTW-FRA?

Best: Extra legroom rows at 33.9-inch pitch. Avoid: Last rows near lavatories. 3-3-3 economy. Free wifi. Extra legroom rows available.