Madrid (MAD) to Boston (BOS) business class award flights

In business class from Madrid (MAD) to Boston (BOS), the best value is also the fewest miles: 55,000 Atmos points plus $73 on American Airlines through Atmos Rewards (checked 1 Nov 2026).

BOS → MAD

Best value seen in the last 2 daysPlus fees$72.59Program

Atmos RewardsAirline

American AirlinesDepartingTue, Nov 3

Last checked 1d agoChecked 1 Nov 2026, 18:46 UTC

Which program and airline costs you least

Madrid to Boston in business class: is 55K Atmos points + $72.59 — American Airlines through Atmos Rewards.

Every way to book MAD to BOS with miles or points
Airline	Program
American AirlinesBest valuevia PHLAtmos Rewards	Atmos Rewards	55K Atmos pointsplus $72.59	$72.59
Aer Lingusvia DUBAtmos Rewards	Atmos Rewards	55K Atmos pointsplus $75.09	$75.09
British Airwaysvia LHRAtmos Rewards	Atmos Rewards	55K Atmos pointsplus $1,095.89	$1,095.89
Qatar Airwaysvia DOHAtmos Rewards	Atmos Rewards	255K Atmos pointsplus $104.19	$104.19
Seen earlier, not re-checked since
Delta Air Linesvia JFKlast seen 29 Oct, not re-checked sinceDelta SkyMiles	Delta SkyMiles	275Kplus $52.53	$52.53
KLMvia AMSlast seen 29 Oct, not re-checked sinceDelta SkyMiles	Delta SkyMiles	275Kplus $69.53	$69.53
Air Francevia CDG, JFKlast seen 29 Oct, not re-checked sinceDelta SkyMiles	Delta SkyMiles	275Kplus $75.29	$75.29

Where the space is over the next 60 days

Dashed days are prices last seen more than 3 days ago and not re-checked since.

MAD to BOS in business class: the facts

Over the next 60 days we hold business class seats from Madrid to Boston on 58 of the 58 departure days we have checked so far (2 days are not checked yet), through 2 programs. These figures are counted from the seats stored for those dates, not from a price history; the typical day is the median of each day's cheapest seat. Data updated November 1, 2026.

Atmos Rewards
Days with space
50 of 58 checked
Lowest
55,000 Atmos points
Typical day
55,000 Atmos points
Cash on top
$73 to $1,096
Delta SkyMiles
Days with space
58 of 58 checked
Lowest
275,000 miles
Typical day
325,000 miles
Cash on top
$53 to $111

MAD to BOS business class seats per program over the next 60 days
Program	Days with space	Lowest	Typical day	Cash on top
Atmos Rewards	50 of 58 checked	55,000 Atmos points	55,000 Atmos points	$73 to $1,096
Delta SkyMiles	58 of 58 checked	275,000 miles	325,000 miles	$53 to $111

Nonstop or with a connection

No nonstop seats in the window. With a connection on Aer Lingus, Air France, American Airlines, British Airways, Delta Air Lines, KLM and Qatar Airways.

How to book it

Atmos Rewards books on alaskaair.com: sign in there, search MAD to BOS in business class on a date with space, and pay in Atmos points with the cash on top (from $73).
Delta SkyMiles books on delta.com: sign in there, search MAD to BOS in business class on a date with space, and pay in miles with the cash on top (from $53).

MilesZone finds the seat; it does not book it or take payment.

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