transatlantic · 7h 05m · 5,487 km
Boston to Madrid
3 airlines · 3 aircraft ranked
In business class, Delta's Delta One Suite (A330-900) leads the field with a 8.5/10.In premium economy, Delta's Delta Premium Select (A330-900) edges out the field with a 5.3/10.
Quick pick
Fly Delta. It scores higher across seat comfort and amenities.
If fares are comparable, this is the better cabin.
Fly Delta. It has free Wi-Fi (paid on Iberia).
If fares are comparable, this is the better cabin.
Fly JetBlue. It scores higher across seat comfort and amenities.
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, Delta's Delta One Suite (A330-900) leads the field with a 8.5/10.
- In premium economy, Delta's Delta Premium Select (A330-900) edges out the field with a 5.3/10.
- In economy, JetBlue's Core (A321LR) leads the field with a 5.7/10.
Frequently asked
Which is better in business: Delta or JetBlue on BOS-MAD?
Delta One Suite (Delta Air Lines, A330-900) edges out Mint (JetBlue Airways, A321LR) in business, scoring 8.5/10 vs 7.7. The deciding factor: extras.
Which is better in economy: Delta or JetBlue on BOS-MAD?
Core (JetBlue Airways, A321LR) edges out Main Cabin (Delta Air Lines, A330-900) in economy, scoring 5.7/10 vs 4.9. The deciding factor: AC + USB-C vs USB-C only. Delta Air Lines fights back on dining.
Which is better in business: Delta or Iberia on BOS-MAD?
Delta One Suite (Delta Air Lines, A330-900) beats Business Plus (Iberia, A330-300) in business, scoring 8.5/10 vs 7.4. The deciding factor: a closed suite door vs an open cabin. Iberia fights back on seat width and bedding.
Which is better in premium economy: Delta or Iberia on BOS-MAD?
Delta Premium Select (Delta Air Lines, A330-900) and Turista Premium (Iberia, A330-300) score virtually the same in premium economy: 5.3 vs 5/10. The biggest gap is wi-fi — Free Wi-Fi vs Paid Wi-Fi — but neither carrier pulls ahead overall.
Which is better in economy: Delta or Iberia on BOS-MAD?
Main Cabin (Delta Air Lines, A330-900) and Turista (Iberia, A330-300) score virtually the same in economy: 4.9 vs 4.8/10. The biggest gap is wi-fi — Free Wi-Fi vs Paid Wi-Fi — but neither carrier pulls ahead overall.
Which is better in business: JetBlue or Iberia on BOS-MAD?
Mint (JetBlue Airways, A321LR) and Business Plus (Iberia, A330-300) score virtually the same in business: 7.7 vs 7.4/10. The biggest gap is privacy — a closed suite door vs an open cabin — but neither carrier pulls ahead overall.
Which is better in economy: JetBlue or Iberia on BOS-MAD?
Core (JetBlue Airways, A321LR) edges out Turista (Iberia, A330-300) in economy, scoring 5.7/10 vs 4.8. The deciding factor: Free Wi-Fi vs Paid Wi-Fi. Iberia fights back on dining.
What are the best seats in Delta Delta One Suite on BOS-MAD?
Best: Odd-numbered window seats (1A, 3A, 5A, 7A and equivalent on right side) are positioned closer to the window and farther from the aisle, offering maximum privacy. Center pairs work well for couples when the privacy divider is lowered. Avoid: Seat 8A is an orphaned solo window seat in the last row of the cabin -- good for solo travelers but isolated. Even-numbered window seats are closer to the aisle with less privacy. All 29 passengers share only 2 lavatories, a significant downside vs the A350. 29 staggered suites with sliding privacy doors and do-not-disturb indicators. Memory foam cushions on all beds. 18.5-inch seatback screen is among the largest in the industry. Only 2 lavatories for the entire business class cabin is a notable weak point compared to 4 on the A350.
What are the best seats in Delta Delta Premium Select on BOS-MAD?
Best: Row 20 bulkhead has the most legroom. Window doublets (A-B and H-J) are ideal for couples. Row 23 passengers can stand behind their seat and still view IFE. Avoid: Center seats (D-E-F) in any row, especially in row 23 which is closest to the economy cabin partition. 28 seats in 4 rows. Premium amenity kit, enhanced meal service, and dedicated flight attendant. Adjustable headrest with privacy wings. USB-A and AC power at every seat.
What are the best seats in Delta Main Cabin on BOS-MAD?
Best: Delta Comfort+ rows 30-36 (56 seats) offer 34 inches of pitch with extra legroom, priority boarding, and dedicated overhead bins. Row 30 bulkhead has the most space. Window doublets (2-abreast) on each side are great for couples. Avoid: Last 2-3 rows near rear lavatories and galley. Center block middle seats (E and F in the 4-abreast center) are worst on long flights. 2-4-2 layout is more comfortable than 3-3-3 on competing aircraft for couples -- no middle-seat risk in the side sections. 56 of the 224 economy seats are Delta Comfort+ with extra pitch. Complimentary meal service on international flights. Delta Sync free Wi-Fi for SkyMiles members.
What are the best seats in JetBlue Mint on BOS-MAD?
Best: 1A and 1F are both Mint Studios with extra shoulder width, a secondary buddy seat that extends the bed area, and the largest screen in the cabin at 22 inches Avoid: Neither Studio seat has meaningful disadvantages; both are the premium pick Mint Studios cost an upcharge over standard Mint Suites. The buddy seat folds out to extend the sleeping surface and can seat a companion during meal service. Studio passengers get the same meal service as Suites.
What are the best seats in JetBlue Core on BOS-MAD?
Best: Even More Space rows 14-17 offer 35-37 inches of pitch for an upcharge. Exit rows provide up to 41 inches. Avoid: Last rows (30-31) near the rear galley and lavatory. Middle seats (B, E) in any row. JetBlue economy on transatlantic flights includes complimentary snacks, drinks, and a meal. All passengers get free unlimited WiFi and seatback IFE with 10.1-inch screens. Even More Space seats are a separate purchase with extra legroom. Power includes AC outlet and USB-A at every seat. Exit row seats on the A320/A321 family offer extra legroom but do not recline. The row immediately before the exit also has limited recline due to clearance requirements.
What are the best seats in Iberia Business Plus on BOS-MAD?
Best: Even-numbered window seats for best privacy in the staggered layout. Avoid: Odd-numbered seats sit closer to the aisle. 29 Stelia Solstys seats, same product as the A330-200. No doors. Mattress pad and duvet provided.
What are the best seats in Iberia Turista Premium on BOS-MAD?
Best: Window pairs (2-abreast sections) for privacy. Adjustable headrest wings help. Avoid: Inner center seats in the 4-abreast block. 24 premium economy seats in 2-4-2. 37-inch pitch with legrest. NC headphones provided. Ceramic dishes for meal service.
What are the best seats in Iberia Turista on BOS-MAD?
Best: Window pairs in the 2-abreast sections. Avoid: Center seats in the 4-abreast block. Last rows near galley. 236 economy seats in 2-4-2. 31-inch pitch. Complimentary meals and beverages on transatlantic.