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

In business class from Boston (BOS) to Madrid (MAD), the best value is also the fewest miles: 55,000 Atmos points plus $29 on Aer Lingus through Atmos Rewards (checked 1 Nov 2026).

Source: https://miles.zone/routes/bos-mad
Data updated: 2026-11-02T18:02:33.134Z
Cash amounts are in US dollars.

Best value: 55,000 Atmos points plus $29 on Aer Lingus through Atmos Rewards, departing 2026-12-05.

## Every program and airline that can book it, next 60 days

| Airline | Program | Points | Cash on top | Routing | Departs | Checked |
| --- | --- | --- | --- | --- | --- | --- |
| Aer Lingus | [Atmos Rewards](https://miles.zone/programs/atmos-rewards) | 55,000 Atmos points | $29 | via DUB | 2026-12-05 | 1 Nov 2026, 17:02 UTC |
| American Airlines | [Atmos Rewards](https://miles.zone/programs/atmos-rewards) | 70,000 Atmos points | $26 | via CLT | 2026-11-11 | 2 Nov 2026, 18:02 UTC |
| Delta Air Lines | [Delta SkyMiles](https://miles.zone/programs/delta-skymiles) | 125,000 miles | $6 | via JFK | 2026-11-28 | 30 Oct 2026, 01:46 UTC |
| British Airways | [Atmos Rewards](https://miles.zone/programs/atmos-rewards) | 55,000 Atmos points | $1,023 | via LHR | 2026-11-03 | 24 Oct 2026, 01:34 UTC |

## Route facts

Over the next 60 days we hold business class seats from Boston to Madrid on 60 of the 60 departure days, 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.

| Program | Days with space | Lowest | Typical day | Cash on top |
| --- | --- | --- | --- | --- |
| [Atmos Rewards](https://miles.zone/programs/atmos-rewards) | 33 of 60 | 55,000 Atmos points | 55,000 Atmos points | $26 to $1,023 |
| [Delta SkyMiles](https://miles.zone/programs/delta-skymiles) | 60 of 60 | 125,000 miles | 297,500 miles | $6 to $55 |

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

## How to book it

1. [Atmos Rewards](https://miles.zone/programs/atmos-rewards) books on alaskaair.com: sign in there, search BOS to MAD in business class on a date with space, and pay in Atmos points with the cash on top (from $26).
2. [Delta SkyMiles](https://miles.zone/programs/delta-skymiles) books on delta.com: sign in there, search BOS to MAD in business class on a date with space, and pay in miles with the cash on top (from $6).

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

## More routes from Boston

- [Amsterdam (AMS)](https://miles.zone/routes/bos-ams)
- [Paris (CDG)](https://miles.zone/routes/bos-cdg)
- [Dublin (DUB)](https://miles.zone/routes/bos-dub)
- [Edinburgh (EDI)](https://miles.zone/routes/bos-edi)
- [Frankfurt (FRA)](https://miles.zone/routes/bos-fra)
- [London (LHR)](https://miles.zone/routes/bos-lhr)
- [Manchester (MAN)](https://miles.zone/routes/bos-man)
- [Rome (FCO)](https://miles.zone/routes/bos-fco)
- [Doha (DOH)](https://miles.zone/routes/bos-doh)
- [Tokyo (NRT)](https://miles.zone/routes/bos-nrt)
- [Bangkok (BKK)](https://miles.zone/routes/bos-bkk)
- [London (LGW)](https://miles.zone/routes/bos-lgw)

## More routes to Madrid

- [London (LHR)](https://miles.zone/routes/lhr-mad)
- [London (LGW)](https://miles.zone/routes/lgw-mad)
- [Washington (IAD)](https://miles.zone/routes/iad-mad)
- [New York (JFK)](https://miles.zone/routes/jfk-mad)
- [Doha (DOH)](https://miles.zone/routes/doh-mad)
- [Dallas (DFW)](https://miles.zone/routes/dfw-mad)
- [New York (EWR)](https://miles.zone/routes/ewr-mad)
- [Miami (MIA)](https://miles.zone/routes/mia-mad)
- [Toronto (YYZ)](https://miles.zone/routes/yyz-mad)
- [Tokyo (HND)](https://miles.zone/routes/hnd-mad)
- [Seoul (ICN)](https://miles.zone/routes/icn-mad)
- [Los Angeles (LAX)](https://miles.zone/routes/lax-mad)