Flights from Boston to Madrid

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
02/16/26
1 Stopover (ZRH)
LX0053, LX2026
29h 10min
Return
02/23/26
1 Stopover (ZRH)
LX2033, LX0052
30h 45min
Swiss International Air Lines ?
$442
Best option
Boston
Madrid
Outbound
02/13/26
direct
AY5370
07h 00min
Return
02/26/26
direct
AY5369
08h 45min
Finnair
$761
Boston
Madrid
Please note: transfer for connecting flight
Outbound
11/24/25
3 Stopovers (KEF, LGW, ALC)
FI0630, FI0470, FR2715, UX4050
20h 05min
Return
11/30/25
3 Stopovers (OPO, TER, PDL)
UX1147, S40183, SP0407, S40225
43h 20min
Icelandair, Ryanair, Air Europa Lineas Aereas
$777
Boston
Madrid
Outbound
04/03/26
2 Stopovers (JFK, FRA)
B60217, DE2017, UX1502
23h 10min
Return
04/16/26
2 Stopovers (FRA, JFK)
UX1503, DE2016, B61118
23h 09min
JetBlue Airways, Condor, Air Europa Lineas Aereas
$870
Boston
Madrid
Outbound
02/13/26
1 Stopover (DUB)
EI0132, EI0592
10h 45min
Return
02/26/26
1 Stopover (DUB)
EI0593, EI0137
14h 19min
Aer Lingus Irish Airlines ?
$485
Boston
Madrid
Outbound
04/03/26
1 Stopover (LIS)
TP0218, TP1012
12h 35min
Return
04/16/26
1 Stopover (LIS)
TP1023, TP0215
19h 05min
TAP Air Portugal
$508
Boston
Madrid
Outbound
02/13/26
1 Stopover (LGA, JFK)
DL5609, DL0126
29h 00min
Return
02/26/26
1 Stopover (JFK)
VS3891, DL5826
14h 23min
Delta Air Lines ?
$508
Boston
Madrid
Outbound
04/03/26
1 Stopover (LIS)
TP0216, TP1016
12h 15min
Return
04/16/26
1 Stopover (LIS)
TP1011, TP0215
15h 40min
TAP Air Portugal
$514
Boston
Madrid
Outbound
04/03/26
1 Stopover (LIS)
TP0216, TP1014
10h 35min
Return
04/16/26
1 Stopover (LIS)
TP1015, TP0215
10h 25min
TAP Air Portugal ?
$515
Boston
Madrid
Outbound
04/03/26
1 Stopover (LIS)
TP0218, TP1012
12h 35min
Return
04/16/26
1 Stopover (LIS)
TP1023, TP0215
19h 05min
TAP Air Portugal
$516
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
$ 356
$ 633
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
52 %
1 stopover Reykjavik-Keflavik International
20h 10min, from $ 356
19 %
Direct flights
07h 00min, from $ 492
14 %

Important flight information

Flight information: Boston - Madrid

Roundtrip from $ 441,01
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