Flights from Boston to Madrid

Trip type

Our cheapest offers for flights from Boston to Madrid

Here you can compare cheap flights from Boston (BOS) to Madrid (MAD) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Madrid. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Boston
Madrid
Outbound
03/29/26
1 Stopover (ZRH)
LX0055, LX2032
19h 20min
Return
04/22/26
1 Stopover (ZRH)
LX2033, LX0054
25h 40min
Swiss International Air Lines ?
$496
Best option
Boston
Madrid
Outbound
05/16/26
direct
BA4200
07h 10min
Return
05/29/26
direct
BA4263
08h 20min
British Airways ?
$529
Boston
Madrid
Please note: transfer for connecting flight
Outbound
03/28/26
3 Stopovers (YUL, YHZ, LHR, STN)
AC8603, AC2044, AC0868, FR0347
23h 35min
Return
04/25/26
3 Stopovers (DUB, YYZ, YUL)
FR0494, WS0047, AC0430, AC0748
44h 19min
Air Canada, Ryanair
$790
Boston
Madrid
Outbound
05/16/26
2 Stopovers (JFK, FRA)
B60217, DE2017, UX1502
23h 55min
Return
05/29/26
1 Stopover (FRA)
UX1503, DE2038
13h 40min
JetBlue Airways, Condor, Air Europa Lineas Aereas
$890
Boston
Madrid
Outbound
05/16/26
1 Stopover (YUL)
AC8611, AC0834
30h 00min
Return
05/29/26
1 Stopover (MUC)
LH4165, LH0424
16h 40min
Air Canada
$519
Boston
Madrid
Outbound
05/16/26
1 Stopover (YUL)
AC8611, AC0834
30h 00min
Return
05/29/26
1 Stopover (YUL)
AC0835, AC0750
32h 02min
Air Canada
$523
Boston
Madrid
Outbound
05/16/26
direct
AY5370
07h 10min
Return
05/29/26
direct
AY5645
08h 20min
Finnair
$529
Boston
Madrid
Outbound
05/16/26
direct
BA4200
07h 10min
Return
05/29/26
direct
BA4263
08h 20min
British Airways
$539
Boston
Madrid
Outbound
07/26/26
1 Stopover (YUL)
UA8363, UA8464
30h 00min
Return
08/05/26
1 Stopover (YYZ)
UA8355, UA8214
26h 23min
United Airlines ?
$551
Boston
Madrid
Outbound
05/16/26
1 Stopover (YUL)
UA8363, UA8464
30h 00min
Return
05/29/26
1 Stopover (YUL)
AC0835, AC8614
14h 42min
United Airlines ?
$555
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Boston to Madrid

Favorite airline: TAP Portugal
TAP Portugal is the most popular airline for flights from Boston to Madrid.
TAP Portugal
27 %
Iberia
10 %
Play
10 %
Direct flights are more expensive
On this route, direct flights are $136.00 more expensive than flights with a stopover.
non stop flight
1 stop
2 stops
07h 00min
20h 10min
18h 25min
492 USD
356 USD
633 USD
Favourite connection: via Lisbon
52 % of booked tickets on this route are for flights with a transfer in Lisbon.
Route
bookings
1 stopover Lisbon
12h 15min, from 396 USD
52 %
1 stopover Reykjavik-Keflavik International
20h 10min, from 356 USD
19 %
Direct flights
07h 00min, from 492 USD
14 %

Important flight information

Flight information: Boston - Madrid

Roundtrip from 495,23 USD
Flight duration min. 06:45
Return flight duration min. 07:55
Distance 5479 km
Flights per week 4
Departure airport Airport Boston Logan International Airport, MA (BOS)
Arrival airport Airport Madrid-Barajas (MAD)
Destination country Flights to Spain
Alternative routes to Spain
Alternative flights to Madrid
Flight destinations with a similar price
Flight destinations with a similar price