United MileagePlus award flights from Seattle (SEA) to Toronto Pearson (YYZ)
In the last 30 days AwardTool saw United MileagePlus award space for SEA→YYZ in economy, business and first. Lowest economy: 15,000 miles + $5.60 (economy space on 318 dates). Lowest business: 65,000 miles + $5.60 (business space on 317 dates). Lowest first: 79,100 miles + $5.60 (first space on 318 dates).
Data as of
Award prices last changed . AwardTool checks these routes daily; seats change quickly.
- Lowest economy
- 15,000 miles + $5.60
- economy space on 318 dates
- Lowest business
- 65,000 miles + $5.60
- business space on 317 dates
- Lowest first
- 79,100 miles + $5.60
- first space on 318 dates
MileagePlus award prices by cabin
The lowest one-way United MileagePlus award AwardTool observed on SEA→YYZ in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 15,000 miles + $5.60 | 1 stopNonstop from 22,500 pts | Air Canada (AC), United Airlines (UA) | 9+ | 318 | See dates | |
| Business | 65,000 miles + $5.60 | Nonstop | Air Canada (AC), United Airlines (UA) | 2 | 317 | See dates | |
| First | 79,100 miles + $5.60 | 1 stop | Air Canada (AC), United Airlines (UA) | 5 | 318 | 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 | 15,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Economy | 15,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Economy | 15,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Business | 65,000 miles + $5.60 | 2 | Nonstop | Check this date | ||
| Business | 65,000 miles + $5.60 | 1 | 1 stop | Check this date | ||
| Business | 65,000 miles + $5.60 | 2 | 1 stop | Check this date | ||
| First | 79,100 miles + $5.60 | 6 | 1 stop | Check this date | ||
| First | 79,100 miles + $5.60 | 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 at the time shown. 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.
Best months to fly SEA to YYZ with MileagePlus
| Month | Economy | Business | First |
|---|---|---|---|
| 15,000 (16 dates) | 65,000 (16 dates) | 80,000 (16 dates) | |
| 15,000 (30 dates) | 65,000 (30 dates) | 79,100 (30 dates) | |
| 15,000 (31 dates) | 65,000 (31 dates) | 79,100 (31 dates) | |
| 15,000 (31 dates) | 65,000 (31 dates) | 80,000 (31 dates) | |
| 15,000 (28 dates) | 65,000 (28 dates) | 80,000 (28 dates) | |
| 15,000 (31 dates) | 65,000 (31 dates) | 80,000 (31 dates) | |
| 15,000 (30 dates) | 80,000 (30 dates) | 80,000 (30 dates) | |
| 15,000 (31 dates) | 80,000 (31 dates) | 80,000 (31 dates) | |
| 15,000 (30 dates) | 80,000 (29 dates) | 80,000 (30 dates) | |
| 15,000 (31 dates) | 80,000 (31 dates) | 80,000 (31 dates) | |
| 22,500 (29 dates) | 80,000 (29 dates) | 80,000 (29 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 on SEA–YYZ
Lowest one-way award per program and cabin on this route.
| Program | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| Air France/KLM Flying Blue | 19,000 pts + $30.23 | — | 51,000 pts + $43.20 | — |
| Alaska Atmos Rewards | 10,000 pts + $5.60 | 22,500 pts + $25.60Lowest | — | 25,000 pts + $5.60 |
| American Airlines AAdvantage | 8,500 pts + $5.60Lowest | — | 18,000 pts + $5.60Lowest | 18,000 pts + $5.60Lowest |
| Delta SkyMiles | 17,500 pts + $5.60 | — | — | 62,100 pts + $5.60 |
| Etihad Guest | 28,000 pts + $44.10 | — | 43,000 pts + $54.23 | — |
| Qantas Frequent Flyer | 20,700 pts + $5.60 | — | 43,600 pts + $5.60 | — |
| United MileagePlus | 15,000 pts + $5.60 | — | 65,000 pts + $5.60 | 79,100 pts + $5.60 |
| Virgin Australia Velocity | 19,000 pts + $9.53 | — | 40,000 pts + $31.45 | — |
Questions about MileagePlus award flights from SEA to YYZ
What's the lowest MileagePlus award from Seattle to Toronto Pearson?
In economy, 15,000 miles + $5.60. United MileagePlus showed economy award space on 318 departure dates (newest observation Oct 15, 2026, 20:01 UTC). In business, 65,000 miles + $5.60. United MileagePlus showed business award space on 317 departure dates (newest observation Oct 15, 2026, 20:01 UTC). Search live before transferring points.
Can you book nonstop SEA to YYZ awards with MileagePlus?
Yes. AwardTool observed nonstop United MileagePlus award space in economy and business, from 22,500 miles in economy.
Which credit card points transfer to MileagePlus?
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 SEA to YYZ?
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 Dec 2026 departures: 15,000 miles (31 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.