# Seattle (SEA) to London (LCY) business class award flights

Source: https://miles.zone/routes/sea-lcy
Data updated: 2026-10-13T08:54:59.596Z
Cash amounts are in US dollars.

Fewest points: 85,000 Atmos points plus $37 on American Airlines through Atmos Rewards, departing 2026-11-03.

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

| Airline | Program | Points | Cash on top | Routing | Departs | Checked |
| --- | --- | --- | --- | --- | --- | --- |
| American Airlines | [Atmos Rewards](https://miles.zone/programs/atmos-rewards) | 85,000 Atmos points | $37 | via PHL, DUB | 2026-11-03 | 13 Oct 2026, 08:54 UTC |

## Route facts

Over the next 60 days we hold business class seats from Seattle to London on 6 of the 6 departure days we have checked so far (54 days are not checked yet), through 1 program. 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) | 6 of 6 checked | 85,000 Atmos points | 85,000 Atmos points | $37 to $47 |

No nonstop seats in the window.
With a connection on American Airlines.

## How to book it

1. [Atmos Rewards](https://miles.zone/programs/atmos-rewards) books on alaskaair.com: sign in there, search SEA to LCY in business class on a date with space, and pay in Atmos points with the cash on top (from $37).

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

## More routes from Seattle

- [Paris (CDG)](https://miles.zone/routes/sea-cdg)
- [Dublin (DUB)](https://miles.zone/routes/sea-dub)
- [Edinburgh (EDI)](https://miles.zone/routes/sea-edi)
- [Frankfurt (FRA)](https://miles.zone/routes/sea-fra)
- [London (LHR)](https://miles.zone/routes/sea-lhr)
- [Manchester (MAN)](https://miles.zone/routes/sea-man)
- [Munich (MUC)](https://miles.zone/routes/sea-muc)
- [Amsterdam (AMS)](https://miles.zone/routes/sea-ams)
- [Barcelona (BCN)](https://miles.zone/routes/sea-bcn)
- [Rome (FCO)](https://miles.zone/routes/sea-fco)
- [Madrid (MAD)](https://miles.zone/routes/sea-mad)
- [Doha (DOH)](https://miles.zone/routes/sea-doh)

## More routes to London

- [Amsterdam (AMS)](https://miles.zone/routes/ams-lcy)
- [Berlin (BER)](https://miles.zone/routes/ber-lcy)
- [Belfast (BHD)](https://miles.zone/routes/bhd-lcy)
- [Dublin (DUB)](https://miles.zone/routes/dub-lcy)
- [Edinburgh (EDI)](https://miles.zone/routes/edi-lcy)
- [Glasgow (GLA)](https://miles.zone/routes/gla-lcy)
- [Geneva (GVA)](https://miles.zone/routes/gva-lcy)
- [Milan (LIN)](https://miles.zone/routes/lin-lcy)
- [Nice (NCE)](https://miles.zone/routes/nce-lcy)
- [Rotterdam (RTM)](https://miles.zone/routes/rtm-lcy)
- [Zurich (ZRH)](https://miles.zone/routes/zrh-lcy)
- [CMF (CMF)](https://miles.zone/routes/cmf-lcy)