American Airlines AAdvantage award flights from Ontario, California (ONT) to Seattle (SEA)
In the last 30 days AwardTool saw American Airlines AAdvantage award space for ONT→SEA in economy and first class. Lowest economy: 8,000 miles + $11.20 (economy space on 60 dates). Lowest first class: 18,500 miles + $5.60 (first-class space on 60 dates).
Every airport: Los Angeles to Seattle (SEA) award flights.
Prices observed – ; newest observation .
Page regenerated from the Nov 12, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest economy
- 8,000 miles + $11.20
- economy space on 60 dates
- Lowest first class
- 18,500 miles + $5.60
- first-class space on 60 dates
In economy, 8,000 miles + $11.20 with American Airlines AAdvantage was the 2nd lowest of the 13 programs with economy award space on this route; the lowest was 7,500 points + $5.60 with Alaska Atmos Rewards. With American Airlines AAdvantage, first class started at 18,500 miles + $5.60, about 2.3 times the points of its lowest economy award (8,000 miles + $11.20).
AAdvantage award prices by cabin
The lowest one-way American Airlines AAdvantage award AwardTool observed on ONT→SEA in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 8,000 miles + $11.20 | 1 stopNonstop from 12,500 pts + taxes vary |  AA AS | — | 60 | See dates | |
| First | 18,500 miles + $5.60 | 1 stopNonstop from 25,000 pts + taxes vary | AAAS | — | 60 | 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 AAdvantage award examples
| Departure | Cabin | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|
| Economy | 8,500 miles + $5.60 | — | 1 stop | Check this date | ||
| Economy | 8,500 miles + $5.60 | — | 1 stop | Check this date | ||
| Economy | 8,500 miles + $5.60 | — | 1 stop | Check this date | ||
| First | 19,500 miles + $5.60 | — | 1 stop | Check this date | ||
| First | 20,500 miles + $5.60 | — | 1 stop | Check this date | ||
| First | 20,500 miles + $5.60 | — | 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 AAdvantage award space showed up
Departure dates in the next 365 days that AwardTool checked for American Airlines AAdvantage 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 | 60 of 60 | 100% | |
| First | 60 of 60 | 100% |
Best months to fly from Ontario, California (ONT) to Seattle (SEA) with AAdvantage
| Month | Economy | First |
|---|---|---|
| 8,500 miles + $5.60 (16 dates) | 19,500 miles + $5.60 (16 dates) | |
| 8,500 miles + $5.60 (11 dates) | 20,500 miles + $5.60 (11 dates) | |
| 8,000 miles + taxes not reported (15 dates) | 22,500 miles + taxes not reported (15 dates) | |
| 8,000 miles + taxes not reported (4 dates) | 18,500 miles + $5.60 (4 dates) | |
| 8,500 miles + taxes not reported (7 dates) | 19,000 miles + taxes not reported (7 dates) | |
| 12,500 miles + taxes not reported (3 dates) | 35,000 miles + taxes not reported (3 dates) | |
| 12,500 miles + taxes not reported (2 dates) | 35,000 miles + taxes not reported (2 dates) | |
| 12,500 miles + taxes not reported (1 date) | 25,000 miles + taxes not reported (1 date) | |
| 12,500 miles + taxes not reported (1 date) | 25,000 miles + taxes not reported (1 date) |
A month's taxes are those of an award AwardTool recorded at that month's lowest price for a departure that month. “Taxes not reported” means the data has none for that month; the award still has taxes and fees.
How to get AAdvantage miles
- Citi ThankYou Points: 1:1 · Instant
Check current transfer bonuses. Most transfers can't be reversed.
AAdvantage vs other programs from Ontario, California (ONT) to Seattle (SEA)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Business | First |
|---|---|---|---|
| Air Canada Aeroplan | 15,000 pts + $33.24 | — | — |
| Air France/KLM Flying Blue | 13,000 pts + $13.85 | 33,500 pts + $23.75 | — |
| Alaska Atmos Rewards | 7,500 pts + $5.60Lowest | — | 20,000 pts + $5.60 |
| American Airlines AAdvantage | 8,000 pts + $11.20 | — | 18,500 pts + $5.60Lowest |
| Avianca LifeMiles | 15,000 pts + $5.60 | — | — |
| Delta SkyMiles | 9,100 pts + $5.60 | — | 25,800 pts + $5.60 |
| Etihad Guest | 15,000 pts + $35.33 | 30,000 pts + $45.45Lowest | — |
| GOL Smiles | 29,400 pts + taxes not reported | 55,300 pts + taxes not reportedMixed cabin | — |
| JetBlue TrueBlue | 25,000 pts + $5.60 | — | — |
| Qantas Frequent Flyer | 16,100 pts + $5.60 | 31,500 pts + $5.60 | — |
| United MileagePlus | 15,000 pts + $5.60 | 80,000 pts + $5.60Mixed cabin | 39,700 pts + $5.60 |
| Virgin Atlantic Flying Club | 11,000 pts + $5.60 | — | 41,500 pts + $5.60 |
| Virgin Australia Velocity | 12,500 pts + $13.57 | — | — |
Questions about AAdvantage award flights from Ontario, California (ONT) to Seattle (SEA)
How many miles do you need to fly from Ontario, California (ONT) to Seattle (SEA) with American Airlines AAdvantage?
The lowest one-way American Airlines AAdvantage awards AwardTool observed in the last 30 days (newest observation Nov 12, 2026): economy 8,000 miles + $11.20, with a typical monthly low of 8,500 miles (taxes vary) over 9 months and award space on 60 departure dates; first class 18,500 miles + $5.60, with a typical monthly low of 22,500 miles (taxes vary) over 9 months and award space on 60 departure dates. Monthly lows varied in economy (8,000 to 12,500 miles + taxes vary) and first class (18,500 to 35,000 miles + taxes vary), so the award on your dates may cost more. Search live before transferring points.
What's the lowest AAdvantage award from Ontario, California (ONT) to Seattle (SEA)?
In economy, 8,000 miles + $11.20. American Airlines AAdvantage showed economy award space on 60 departure dates at any price (newest observation Nov 12, 2026, 06:14 UTC). In first class, 18,500 miles + $5.60. American Airlines AAdvantage showed first-class award space on 60 departure dates at any price (newest observation Nov 12, 2026, 06:14 UTC). Search live before transferring points.
Can you book nonstop awards from Ontario, California (ONT) to Seattle (SEA) with AAdvantage?
Yes. AwardTool observed nonstop American Airlines AAdvantage award space in first class, and in economy from 12,500 miles + taxes vary.
Which credit card points can book AAdvantage awards from Ontario, California (ONT) to Seattle (SEA)?
Citi ThankYou Points (1:1, Instant). Check current transfer bonuses; most transfers can't be reversed.
Which months had the lowest AAdvantage award prices from Ontario, California (ONT) to Seattle (SEA)?
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 Jan 2027 departures: 8,000 miles + taxes not reported (15 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.
When does American Airlines AAdvantage release award seats for Ontario, California (ONT) to Seattle (SEA)?
American Airlines AAdvantage publishes a booking window of about 331 days (about 11 months) before departure (AwardTool's program data, reviewed Nov 6, 2026). On this route AwardTool saw American Airlines AAdvantage award space for departures as late as Jul 8, 2027; seats can open earlier or later, and released seats may already be booked. See AAdvantage award release dates.