Finnair flights from Boston Logan (BOS) to Madrid (MAD).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 21:20 Boston Logan (BOS) E 10:30 Madrid (MAD) 4S
Finnair AY 5370 Non-stop Airbus A321neo (32Q) 7:10 Effective 2025-05-10 through 2025-10-24
Codeshare flight, operated by Iberia.(IB 346)
The flight arrives 1 day after departure.
Mon,Wed,Fri-Sun 21:20 Boston Logan (BOS) E 10:20 Madrid (MAD) 4S
Finnair AY 5370 Non-stop Airbus A321neo (32Q) 7:00 Effective 2025-11-02 through 2025-12-17
Codeshare flight, operated by Iberia.(IB 346)
The flight arrives 1 day after departure.
Mon,Wed-Sun 21:20 Boston Logan (BOS) E 10:20 Madrid (MAD) 4S
Finnair AY 5370 Non-stop Airbus A321neo (32Q) 7:00 Effective 2025-12-18 through 2026-01-18
Codeshare flight, operated by Iberia.(IB 346)
The flight arrives 1 day after departure.
Wed,Fri,Sun 21:20 Boston Logan (BOS) E 10:20 Madrid (MAD) 4S
Finnair AY 5370 Non-stop Airbus A321neo (32Q) 7:00 Effective 2026-01-21 through 2026-02-13
Codeshare flight, operated by Iberia.(IB 346)
The flight arrives 1 day after departure.
Daily 21:20 Boston Logan (BOS) E 10:20 Madrid (MAD) 4S
Finnair AY 5370 Non-stop Airbus A321neo (32Q) 7:00 Effective from 2026-02-14
Codeshare flight, operated by Iberia.(IB 346)
The flight arrives 1 day after departure.
Sat 21:25 Boston Logan (BOS) E 09:30 Madrid (MAD) 4S
Finnair AY 5370 Non-stop Airbus A321neo (32Q) 7:05 Operates only on 2025-10-25
Codeshare flight, operated by Iberia.(IB 346)
The flight arrives 1 day after departure.
Mon,Wed,Fri-Sun 22:20 Boston Logan (BOS) E 10:20 Madrid (MAD) 4S
Finnair AY 5370 Non-stop Airbus A321neo (32Q) 7:00 Effective 2025-10-26 through 2025-11-01
Codeshare flight, operated by Iberia.(IB 346)
The flight arrives 1 day after departure.
Daily 16:30 Boston Logan (BOS) E 05:40 Madrid (MAD) 4S
Finnair AY 5648 Non-stop Airbus A321neo (32Q) 7:10 Valid until 2025-10-24
Codeshare flight, operated by Iberia.(IB 348)
The flight arrives 1 day after departure.
Sat 16:30 Boston Logan (BOS) E 04:40 Madrid (MAD) 4S
Finnair AY 5648 Non-stop Airbus A321neo (32Q) 7:10 Operates only on 2025-10-25
Codeshare flight, operated by Iberia.(IB 348)
The flight arrives 1 day after departure.
Daily 16:45 Boston Logan (BOS) E 05:45 Madrid (MAD) 4S
Finnair AY 5648 Non-stop Airbus A321neo (32Q) 7:00 Effective from 2025-11-02
Codeshare flight, operated by Iberia.(IB 348)
The flight arrives 1 day after departure.
Daily 17:45 Boston Logan (BOS) E 05:45 Madrid (MAD) 4S
Finnair AY 5648 Non-stop Airbus A321neo (32Q) 7:00 Effective 2025-10-26 through 2025-11-01
Codeshare flight, operated by Iberia.(IB 348)
The flight arrives 1 day after departure.




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Finnair flights from Boston Logan (BOS) to Madrid (MAD).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Finnair AY5370
21:20
Boston Logan (BOS) E

10:30(+1)
Madrid (MAD) 4S
Effective 2025-05-10 through 2025-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Iberia. (IB 346)
Duration: 7:10, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Finnair AY5370
21:20
Boston Logan (BOS) E

10:20(+1)
Madrid (MAD) 4S
Effective 2025-11-02 through 2025-12-17
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Iberia. (IB 346)
Duration: 7:00, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Finnair AY5370
21:20
Boston Logan (BOS) E

10:20(+1)
Madrid (MAD) 4S
Effective 2025-12-18 through 2026-01-18
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Iberia. (IB 346)
Duration: 7:00, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Finnair AY5370
21:20
Boston Logan (BOS) E

10:20(+1)
Madrid (MAD) 4S
Effective 2026-01-21 through 2026-02-13
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by Iberia. (IB 346)
Duration: 7:00, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Finnair AY5370
21:20
Boston Logan (BOS) E

10:20(+1)
Madrid (MAD) 4S
Effective from 2026-02-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Iberia. (IB 346)
Duration: 7:00, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Finnair AY5370
21:25
Boston Logan (BOS) E

09:30(+1)
Madrid (MAD) 4S
Operates only on 2025-10-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Iberia. (IB 346)
Duration: 7:05, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Finnair AY5370
22:20
Boston Logan (BOS) E

10:20(+1)
Madrid (MAD) 4S
Effective 2025-10-26 through 2025-11-01
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by Iberia. (IB 346)
Duration: 7:00, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Finnair AY5648
16:30
Boston Logan (BOS) E

05:40(+1)
Madrid (MAD) 4S
Valid until 2025-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Iberia. (IB 348)
Duration: 7:10, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Finnair AY5648
16:30
Boston Logan (BOS) E

04:40(+1)
Madrid (MAD) 4S
Operates only on 2025-10-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Iberia. (IB 348)
Duration: 7:10, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Finnair AY5648
16:45
Boston Logan (BOS) E

05:45(+1)
Madrid (MAD) 4S
Effective from 2025-11-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Iberia. (IB 348)
Duration: 7:00, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Finnair AY5648
17:45
Boston Logan (BOS) E

05:45(+1)
Madrid (MAD) 4S
Effective 2025-10-26 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Iberia. (IB 348)
Duration: 7:00, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
  • An international route departing from Boston Logan airport, United States (BOS) and arriving at Madrid airport, Spain (MAD).
  • The flight distance is 3399 miles, or 5471 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC+1 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 7:00 and 7:10.
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