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Seattle (SEA) to Singapore (SIN) business class award flights

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Travellers and cabin

Who’s flying?

Adults12 and over
1
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Departure time

00:0024:00

Arrival time

00:0024:00

Flight duration
Any length

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Departure time

00:0024:00

Arrival time

00:0024:00

Flight duration
Any length
Cheapest right now130,000 Atmos pointsPlus fees$1,302.50ProgramAtmos RewardsAtmos RewardsAirlineBritish AirwaysBritish AirwaysDepartingTue, Oct 27
Last checked 2h agoChecked

Which program and airline costs you least

Seattle to Singapore in business class starts at 130K Atmos points plus $1,302.50 — British Airways through Atmos Rewards. Alaska Airlines through Atmos Rewards charges the least cash — $33.10 — but wants 200K Atmos points.

Every way to book SEA to SIN with miles or points
Airline
United AirlinesUnited Airlinesvia LAXlast seen 10 Oct, not re-checked sinceLifeMiles90Kplus $5.60
EVA AirEVA Airvia TPE, BKKlast seen 10 Oct, not re-checked sinceLifeMiles90Kplus $7.13
British AirwaysBritish Airwaysvia LHRAtmos Rewards130K Atmos pointsplus $1,302.50
Alaska AirlinesAlaska Airlinesvia ICNAtmos Rewards200K Atmos pointsplus $33.10
British AirwaysBritish Airwaysvia LHRBritish Airways Club220K AviosFees not quoted
United AirlinesUnited Airlinesvia LAX, SFOlast seen 18 Oct, not re-checked sinceUnited MileagePlus238.7Kplus $5.60
Starlux AirlinesStarlux Airlinesvia TPEAtmos Rewards250K Atmos pointsplus $48.70
Qatar AirwaysQatar Airwaysvia DOHAtmos Rewards255K Atmos pointsplus $62.80
Air FranceAir Francevia CDGAir France-KLM Flying Blue448.5Kplus $699.20

SEA to SIN in business class: the facts

Over the next 60 days we hold business class seats from Seattle to Singapore on 42 of the 42 departure days we have checked so far (18 days are not checked yet), through 5 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 .

  • LifeMiles
    Days with space
    3 of 42 checked
    Lowest
    90,000 miles
    Typical day
    90,000 miles
    Cash on top
    $6 to $7
  • Atmos Rewards
    Days with space
    41 of 42 checked
    Lowest
    130,000 Atmos points
    Typical day
    250,000 Atmos points
    Cash on top
    $33 to $1,303
  • British Airways Club
    Days with space
    3 of 42 checked
    Lowest
    220,000 Avios
    Typical day
    220,000 Avios
    Cash on top
    Not quoted
  • United MileagePlus
    Days with space
    7 of 42 checked
    Lowest
    238,700 miles
    Typical day
    360,000 miles
    Cash on top
    $6 to $21
  • Air France-KLM Flying Blue
    Days with space
    3 of 42 checked
    Lowest
    448,500 miles
    Typical day
    700,000 miles
    Cash on top
    $699

Nonstop or with a connection

No nonstop seats in the window. With a connection on Air France, Alaska Airlines, British Airways, EVA Air, Qatar Airways, Starlux Airlines and United Airlines.

How to book it

  1. LifeMiles books on lifemiles.com: sign in there, search SEA to SIN in business class on a date with space, and pay in miles with the cash on top (from $6).
  2. Atmos Rewards books on alaskaair.com: sign in there, search SEA to SIN in business class on a date with space, and pay in Atmos points with the cash on top (from $33).
  3. British Airways Club books on avios.com: sign in there, search SEA to SIN in business class on a date with space, and pay in Avios with the cash on top.
  4. United MileagePlus books on united.com: sign in there, search SEA to SIN in business class on a date with space, and pay in miles with the cash on top (from $6).
  5. Air France-KLM Flying Blue books on airfrance.fr: sign in there, search SEA to SIN in business class on a date with space, and pay in miles with the cash on top (from $699).

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

Get told the moment a SEA → SIN 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.