Cheap Flights from Boston to Madrid
Browse current best options from Boston. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
Boston
RatePunk searches hundreds of travel sites at once for deals on flights to Madrid
Prices updated 8 days ago
472 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated Sep 29, 2026.)
Today’s best flight deals from Boston to Madrid
Explore current cheapest deals departing from Boston to Madrid
2026-10-11 – 2026-10-20
BOS - Madrid
91% AI deal score
$514
$362
Round trip
2026-10-13 – 2026-10-22
BOS - Madrid
91% AI deal score
$505
$363
Round trip
2026-10-05 – 2026-10-15
BOS - Madrid
91% AI deal score
$521
$365
Round trip
2026-10-14 – 2026-10-21
BOS - Madrid
92% AI deal score
$530
$365
Round trip
2026-10-05 – 2026-10-14
BOS - Madrid
92% AI deal score
$531
$365
Round trip
2026-10-13 – 2026-10-20
BOS - Madrid
91% AI deal score
$527
$365
Round trip
2026-10-12 – 2026-10-20
BOS - Madrid
91% AI deal score
$511
$365
Round trip
2026-10-11 – 2026-10-21
BOS - Madrid
91% AI deal score
$505
$365
Round trip
2026-10-06 – 2026-10-15
BOS - Madrid
91% AI deal score
$524
$365
Round trip
2026-10-14 – 2026-10-22
BOS - Madrid
91% AI deal score
$510
$366
Round trip
