Business-class award flights from Singapore (SIN) to Ontario, California (ONT)
Explore these award routes
Preview matching cached flight results on these routes, then search live for your own trip.
In the last 30 days AwardTool saw business-class award space on 4 programs for SIN→ONT. Lowest: 250,000 miles + $74.83 with United MileagePlus, which showed business-class award space on 16 dates. A mixed-cabin itinerary, with part of the trip in a lower cabin, was seen from 130,000 miles + $347.79 with Etihad Guest.
Prices observed – ; newest observation .
Page regenerated from the Oct 19, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest observed
- 250,000 miles + $74.83
- United MileagePlus
- Programs with space
- 4 of 8
- programs seen on this route
- Most dates seen
- 16 of 16
- dates checked · United MileagePlus
- Nonstop
- Not seen
- in the last 30 days
Compare programs for business class
The lowest one-way business-class award each program showed on SIN→ONT, sorted by points.
| Program | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Etihad GuestLowest, mixed cabin | 130,000 pts + $347.79Mixed cabin | 2 stops | American Airlines (AA), Etihad Airways (EY) | 7 | 6 | See dates | |
| United MileagePlus | 250,000 pts + $74.83 | 1 stop | EVA Air (BR), ANA (NH), Singapore Airlines (SQ), United Airlines (UA) | 9+ | 16 | See dates | |
| Alaska Atmos Rewards | 250,000 pts + $112.69Mixed cabin | 1 stop | Alaska Airlines (AS), STARLUX Airlines (JX) | 9+ | 8 | See dates | |
| Air Canada Aeroplan | 397,658 pts + $160.84Mixed cabin | 3 stops | Air Canada (AC), Singapore Airlines (SQ), Thai Airways International (TG), United Airlines (UA) | 9+ | 6 | See dates |
Not seen in business class: American Airlines AAdvantage, JetBlue TrueBlue, Air France/KLM Flying Blue and Qantas Frequent Flyer.
Not seen means AwardTool hasn't observed this cabin on this route in the last 30 days. It doesn't mean the airline has no seats. Dates seen counts departure dates with an open award in that cabin at any price; newest observation is the latest time AwardTool saw one of them. Seats is the count the program reported when we observed it; some programs report at most 9.
Observed business-class award examples
| Departure | Program | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|
| Alaska Atmos Rewards | 250,000 pts + $118.79Mixed cabin | 2 | 2 stops | Check this date | ||
| Alaska Atmos Rewards | 250,000 pts + $112.69Mixed cabin | 9+ | 1 stop | Check this date | ||
| United MileagePlus | 318,000 pts + $74.99 | 9+ | 2 stops | Check this date | ||
| United MileagePlus | 319,200 pts + $75.19 | 5 | 2 stops | Check this date | ||
| Air Canada Aeroplan | 471,667 pts + $146.80 | 1 | 3 stops | Check this date |
Prices are one-way per traveler: the program's points or miles plus taxes and carrier fees in USD, as AwardTool observed them in the observation window. Award space changes constantly. A seat we saw may be gone, and space we haven't seen may exist. Always confirm with a live search before transferring points; most transfers can't be reversed.
How often business-class award space showed up
Departure dates in the next 365 days that AwardTool checked for each program in the last 30 days, how many had business-class award space at any price, and the latest departure with space.
| Program | Dates with space | Share of dates checked | Latest departure with space |
|---|---|---|---|
| Etihad Guest | 6 of 14 | 42% | |
| United MileagePlus | 16 of 16 | 100% | |
| Alaska Atmos Rewards | 8 of 14 | 57% | |
| Air Canada Aeroplan | 6 of 14 | 42% |
Best months for business class from Singapore (SIN) to Ontario, California (ONT)
| Month | Lowest observed | Program | Dates |
|---|---|---|---|
| 250,000 pts + taxes varyMixed cabin | Alaska Atmos Rewards | 2 | |
| 360,000 pts + taxes vary | United MileagePlus | 2 | |
| 250,000 pts + taxes varyMixed cabin | Alaska Atmos Rewards | 1 | |
| 130,000 pts + taxes varyMixed cabin | Etihad Guest | 4 | |
| 250,000 pts + taxes varyMixed cabin | Alaska Atmos Rewards | 2 | |
| 250,000 pts + taxes vary | United MileagePlus | 1 | |
| 250,000 pts + taxes vary | United MileagePlus | 1 |
Lowest business class award by month and program
Each program's lowest one-way business-class award by departure month, in its own points or miles; taxes vary. — means the program showed no business-class space that month.
| Program | |||||||
|---|---|---|---|---|---|---|---|
| Etihad Guestmiles | — | — | — | 130,000Mixed cabin | 365,349 | — | — |
| United MileagePlusmiles | 319,200 | 360,000 | 318,000 | 250,000 | 250,000 | 250,000 | 250,000 |
| Alaska Atmos Rewardspoints | 250,000Mixed cabin | — | 250,000Mixed cabin | 250,000Mixed cabin | 250,000Mixed cabin | — | — |
| Air Canada Aeroplanpoints | — | — | 471,667 | 397,658Mixed cabin | 423,094 | — | — |
Airlines seen in business class
Airlines that appeared on the award itineraries AwardTool observed, and the programs that showed them.
- American Airlines (AA): Etihad Guest
- Air Canada (AC): Air Canada Aeroplan
- Alaska Airlines (AS): Alaska Atmos Rewards
- EVA Air (BR): United MileagePlus
- Etihad Airways (EY): Etihad Guest
- STARLUX Airlines (JX): Alaska Atmos Rewards
- ANA (NH): United MileagePlus
- Singapore Airlines (SQ): United MileagePlus and Air Canada Aeroplan
- Thai Airways International (TG): Air Canada Aeroplan
- United Airlines (UA): United MileagePlus and Air Canada Aeroplan
Business class on nearby routes
The lowest business-class award AwardTool observed on related routes, as each route's page shows it: the return direction, other airports in the same cities, and more routes from Singapore (SIN) and to Ontario, California (ONT). One way, in the program's points or miles; taxes are on each route's page.
| Route | Lowest observed | Program | Dates seen |
|---|---|---|---|
| Ontario (ONT) to Singapore (SIN)Return direction | 250,000 miles | United MileagePlus | 31 |
| Singapore (SIN) to Doha (DOH)Also from SIN | 40,000 miles | American Airlines AAdvantage | 243 |
| Singapore (SIN) to Bali (DPS)Also from SIN | 21,500 pointsNonstop | Virgin Atlantic Flying Club | 16 |
| Singapore (SIN) to Jakarta (CGK)Also from SIN | 15,000 milesNonstop | Air France/KLM Flying Blue | 355 |
| Singapore (SIN) to Ho Chi Minh City (SGN)Also from SIN | 15,500 pointsNonstop | Virgin Atlantic Flying Club | 324 |
| Taipei Taoyuan (TPE) to Ontario (ONT)Also to ONT | 175,000 pointsNonstop | Alaska Atmos Rewards | 68 |
| Manila (MNL) to Ontario (ONT)Also to ONT | 232,900 miles | United MileagePlus | 108 |
| Bangkok Suvarnabhumi (BKK) to Ontario (ONT)Also to ONT | 139,999 miles | Etihad Guest | 43 |
Points that transfer to these programs
| Program | Amex | Bilt | Capital One | Chase | Citi | Wells Fargo |
|---|---|---|---|---|---|---|
| Air Canada Aeroplan | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | — | — |
| Alaska Atmos Rewards | — | 1:1 · ~1 day | — | — | — | — |
| Etihad Guest | — | 1:1 · Instant | 1:1 · ~1 day | — | 1:1 · Instant | — |
| United MileagePlus | — | 1:1 · Instant | — | 1:1 · Instant | — | — |
Check current transfer bonuses. Most transfers can't be reversed.
Questions about business-class award flights from Singapore (SIN) to Ontario, California (ONT)
What's the lowest business-class award from Singapore (SIN) to Ontario, California (ONT)?
250,000 miles + $74.83 with United MileagePlus. United MileagePlus showed business-class award space on 16 departure dates at any price (newest observation Oct 16, 2026, 23:03 UTC). A mixed-cabin itinerary, with part of the trip in a lower cabin, was seen from 130,000 miles + $347.79 with Etihad Guest. Search live before transferring points.
Which programs had business-class award space from Singapore (SIN) to Ontario, California (ONT)?
Etihad Guest (6 dates), United MileagePlus (16 dates), Alaska Atmos Rewards (8 dates) and Air Canada Aeroplan (6 dates), in the last 30 days.
Is there nonstop business-class award space from Singapore (SIN) to Ontario, California (ONT)?
AwardTool hasn't observed nonstop business-class award space on this route in the last 30 days. That doesn't mean nonstop space never appears.
Which months had the lowest business-class award prices from Singapore (SIN) to Ontario, California (ONT)?
Counting only month prices from programs with award space on 2 or more dates that month, and leaving out unusually low outliers, the lowest business-class award AwardTool observed was for Jan 2027 departures: 250,000 miles with MileagePlus (4 dates). A mixed-cabin itinerary was seen for Jan 2027 departures from 130,000 miles with Etihad Guest. The month table shows every lowest price, including those. Based on dates we observed, not a forecast.