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Southampton (SOU) to Seattle (SEA) business class reward flights

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Adults12 and over
1
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Lowest seen in the last 4 days70,000 Atmos pointsPlus fees$399.19ProgramAtmos RewardsAtmos RewardsAirlineAer LingusAer LingusDepartingThu, Nov 5
Last checked 3d agoChecked

Which program and airline costs you least

Southampton to Seattle in business class starts at 70K Atmos points plus $399.19 — Aer Lingus through Atmos Rewards.

Every way to book SOU to SEA with miles or points
Airline
Aer LingusAer Lingusvia DUB, YYZlast seen 18 Oct, not re-checked sinceAtmos Rewards70K Atmos pointsplus $399.19
KLMKLMvia AMS, MSPlast seen 12 Oct, not re-checked sinceAir France-KLM Flying Blue391.5Kplus $790.29

SOU to SEA in business class: the facts

Over the next 60 days we hold business class seats from Southampton to Seattle 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 .

  • Atmos Rewards
    Days with space
    56 of 58 checked
    Lowest
    70,000 Atmos points
    Typical day
    70,000 Atmos points
    Cash on top
    $399 to $417
  • Air France-KLM Flying Blue
    Days with space
    7 of 58 checked
    Lowest
    391,500 miles
    Typical day
    624,000 miles
    Cash on top
    $780 to $813

Nonstop or with a connection

No nonstop seats in the window. With a connection on Aer Lingus and KLM.

How to book it

  1. Atmos Rewards books on alaskaair.com: sign in there, search SOU to SEA in business class on a date with space, and pay in Atmos points with the cash on top (from $399).
  2. Air France-KLM Flying Blue books on airfrance.fr: sign in there, search SOU to SEA in business class on a date with space, and pay in miles with the cash on top (from $780).

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

Get told the moment a SOU → SEA seat opens.

We re-check that exact seat seconds before the email leaves, so what you open is still there.

Email only. Searching this route stays free for departures in the next 60 days.