
Seattle (SEA) to Singapore (SIN) business class award flights
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.
| Airline | |
|---|---|
| 90Kplus $5.60 | |
| 90Kplus $7.13 | |
| 130K Atmos pointsplus $1,302.50 | |
| 200K Atmos pointsplus $33.10 | |
| 220K AviosFees not quoted | |
| 238.7Kplus $5.60 | |
| 250K Atmos pointsplus $48.70 | |
| 255K Atmos pointsplus $62.80 | |
| 448.5Kplus $699.20 |
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.
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
- 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).
- 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).
- 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.
- 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).
- 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.
More routes
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.