United MileagePlus award flights from Seoul Incheon (ICN) to Ontario, California (ONT)
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In the last 30 days AwardTool saw United MileagePlus award space for ICN→ONT in economy, premium economy and business class. Lowest economy: 46,400 miles + $42.09 (economy space on 19 dates). Lowest business class: 210,900 miles + $42.09 (business-class space on 19 dates). Lowest premium economy: 122,400 miles + $42.09 (premium economy space on 18 dates).
Prices observed – ; newest observation .
Page regenerated from the Oct 19, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest economy
- 46,400 miles + $42.09
- economy space on 19 dates
- Lowest business class
- 210,900 miles + $42.09
- business-class space on 19 dates
- Lowest premium economy
- 122,400 miles + $42.09
- premium economy space on 18 dates
MileagePlus award prices by cabin
The lowest one-way United MileagePlus award AwardTool observed on ICN→ONT in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 46,400 miles + $42.09 | 1 stop | EVA Air (BR), Asiana Airlines (OZ), United Airlines (UA) | 9+ | 19 | See dates | |
| Premium Economy | 122,400 miles + $42.09 | 1 stop | Asiana Airlines (OZ), United Airlines (UA) | 9+ | 18 | See dates | |
| Business | 210,900 miles + $42.09 | 1 stop | EVA Air (BR), Asiana Airlines (OZ), United Airlines (UA) | 9+ | 19 | See dates |
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 MileagePlus award examples
| Departure | Cabin | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|
| Economy | 46,400 miles + $42.09 | 9+ | 1 stop | Check this date | ||
| Economy | 55,000 miles + $42.09 | 9+ | 2 stops | Check this date | ||
| Economy | 55,000 miles + $42.09 | 9+ | 1 stop | Check this date | ||
| Premium Economy | 122,400 miles + $42.09 | 9+ | 1 stop | Check this date | ||
| Premium Economy | 123,000 miles + $42.09 | 9+ | 1 stop | Check this date | ||
| Premium Economy | 185,800 miles + $47.79 | 9+ | 2 stops | Check this date | ||
| Business | 210,900 miles + $47.69 | 8 | 2 stops | Check this date | ||
| Business | 210,900 miles + $42.09 | 9+ | 1 stop | 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 MileagePlus award space showed up
Departure dates in the next 365 days that AwardTool checked for United MileagePlus in the last 30 days, how many had award space in each cabin at any price, and the latest departure with space.
| Cabin | Dates with space | Share of dates checked | Latest departure with space |
|---|---|---|---|
| Economy | 19 of 19 | 100% | |
| Premium Economy | 18 of 19 | 94% | |
| Business | 19 of 19 | 100% |
Best months to fly from Seoul Incheon (ICN) to Ontario, California (ONT) with MileagePlus
| Month | Economy | Premium Economy | Business |
|---|---|---|---|
| 55,000 (4 dates) | 200,000 (3 dates) | 250,000 (4 dates) | |
| 46,400 (7 dates) | 122,400 (7 dates) | 210,900 (7 dates) | |
| 123,500 (2 dates) | 200,000 (2 dates) | 280,800 (2 dates) | |
| 64,800 (1 date) | 193,400 (1 date) | 362,800 (1 date) | |
| 80,900 (3 dates) | 200,000 (3 dates) | 231,400 (3 dates) | |
| 150,000 (2 dates) | 200,000 (2 dates) | 297,500 (2 dates) |
How to get MileagePlus miles
- Bilt Rewards: 1:1 · Instant
- Chase Ultimate Rewards: 1:1 · Instant
Check current transfer bonuses. Most transfers can't be reversed.
MileagePlus vs other programs from Seoul Incheon (ICN) to Ontario, California (ONT)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| Air Canada Aeroplan | 50,000 pts + $112.20 | — | 182,156 pts + $112.20LowestMixed cabin | — |
| Alaska Atmos Rewards | 40,000 pts + $42.09Lowest | — | — | 150,000 pts + $42.09Lowest |
| American Airlines AAdvantage | 42,500 pts + $42.09 | 114,000 pts + $42.09 | 324,000 pts + $42.09 | — |
| Delta SkyMiles | 46,000 pts + $40.95 | 105,000 pts + $40.95Lowest | — | 195,000 pts + $40.95 |
| GOL Smiles | 156,300 pts + taxes not reported | — | — | — |
| United MileagePlus | 46,400 pts + $42.09 | 122,400 pts + $42.09 | 210,900 pts + $42.09 | — |
| Virgin Atlantic Flying Club | 60,500 pts + $40.88 | — | — | — |
Questions about MileagePlus award flights from Seoul Incheon (ICN) to Ontario, California (ONT)
How many miles do you need to fly from Seoul Incheon (ICN) to Ontario, California (ONT) with United MileagePlus?
The lowest one-way United MileagePlus awards AwardTool observed in the last 30 days (newest observation Oct 19, 2026): economy 46,400 miles + $42.09, with a typical monthly low of 64,800 miles over 6 months and award space on 19 departure dates; premium economy 122,400 miles + $42.09, with a typical monthly low of 200,000 miles over 6 months and award space on 18 departure dates; business class 210,900 miles + $42.09, with a typical monthly low of 250,000 miles over 6 months and award space on 19 departure dates. Monthly lows varied in economy (46,400 to 150,000 miles), premium economy (122,400 to 200,000 miles) and business class (210,900 to 362,800 miles), so the award on your dates may cost more. Search live before transferring points.
What's the lowest MileagePlus award from Seoul Incheon (ICN) to Ontario, California (ONT)?
In economy, 46,400 miles + $42.09. Seen Oct 9, 2026, 18:44 UTC for a Nov 17, 2026 departure. United MileagePlus showed economy award space on 19 departure dates at any price (newest observation Oct 19, 2026, 02:24 UTC). In business class, 210,900 miles + $42.09. Seen Oct 19, 2026, 02:24 UTC for a Nov 8, 2026 departure. United MileagePlus showed business-class award space on 19 departure dates at any price (newest observation Oct 19, 2026, 02:24 UTC). Search live before transferring points.
Can you book nonstop awards from Seoul Incheon (ICN) to Ontario, California (ONT) with MileagePlus?
AwardTool hasn't observed nonstop United MileagePlus award space on this route in the last 30 days. That doesn't mean nonstop space never appears.
Which credit card points can book MileagePlus awards from Seoul Incheon (ICN) to Ontario, California (ONT)?
Bilt Rewards (1:1, Instant) and Chase Ultimate Rewards (1:1, Instant). Check current transfer bonuses; most transfers can't be reversed.
Which months had the lowest MileagePlus award prices from Seoul Incheon (ICN) 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 economy award AwardTool observed was for Nov 2026 departures: 46,400 miles (7 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.