Boston (BOS) to Madrid (MAD)
Flight time
≈ 7h 36m
Bearing
68° E
Boston (BOS) to Madrid (MAD) is 3,401 miles (5,473 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BOS–MAD
Filed traffic dataIn May 2026, Iberia Air Lines Of Spain operated the most departures, one of 3 carriers flying nonstop BOS–MAD; the Airbus A321 was the most common aircraft at 36% of departures; flights ran 76% full.
Departures
218
May 2026
Seats
44,899
both directions
Passengers
34,093
both directions
Load factor
75.9%
RPM ÷ ASM
Who flies BOS–MAD?
Iberia Air Lines Of Spain operated the most nonstop BOS–MAD departures in May 2026 (106), one of 3 carriers on the route.
- IB
Iberia Air Lines Of Spain
106 departures · 22,152 seats
Share of departures48.6%75.0%
Load
- B6
61 departures · 8,418 seats
Share of departures28.0%83.5%
Load
- DL
51 departures · 14,329 seats
Share of departures23.4%73.0%
Load
What plane flies BOS–MAD?
In May 2026, the Airbus A321 flew 36% of BOS–MAD departures — more than any other aircraft type.
- Airbus A321
78 departures · 80.8% load
35.8% - Airbus A321neo
61 departures · 83.5% load
28.0% - Airbus A330-900
51 departures · 73.0% load
23.4% - Airbus A330-200
16 departures · 66.7% load
7.3% - Airbus A330-300
12 departures · 61.8% load
5.5%
How has BOS–MAD traffic changed?
Nonstop BOS–MAD departures rose from 177 in June 2025 to 218 in May 2026.
Monthly nonstop BOS–MAD traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
177 departures · 24,681 passengers
82.0%
Load
July 2025
185 departures · 26,481 passengers
85.3%
Load
August 2025
186 departures · 26,296 passengers
84.5%
Load
September 2025
163 departures · 22,395 passengers
80.1%
Load
October 2025
133 departures · 19,950 passengers
86.3%
Load
November 2025
64 departures · 11,463 passengers
84.4%
Load
December 2025
92 departures · 13,069 passengers
78.0%
Load
January 2026
88 departures · 12,465 passengers
77.8%
Load
February 2026
64 departures · 9,054 passengers
80.1%
Load
March 2026
100 departures · 15,352 passengers
84.4%
Load
April 2026
146 departures · 19,098 passengers
78.1%
Load
May 2026
218 departures · 34,093 passengers
75.9%
Load
By direction
Each direction is filed separately — they rarely match.
BOS → MAD
83.4% full
110 departures · 18,850 passengers
MAD → BOS
68.4% full
108 departures · 15,243 passengers
Nonstop BOS–MAD traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Madrid
ES
Adolfo Suárez Madrid–Barajas Airport
Coordinates
40.49°N, 3.57°W
Hemisphere
N · W
Frequently asked
How far is Boston (BOS) from Madrid (MAD)?
BOS to MAD is 3,401 miles (5,473 km / 2,955 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOS to MAD?
A nonstop covers the 3,401-mile great-circle distance in roughly 7h 36m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOS–MAD?
In May 2026, the Airbus A321 flew the largest share of departures (35.8%), followed by the Airbus A321neo (28.0%).
What mileage do I earn flying BOS–MAD?
Distance-based programs credit off the 3,401-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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