United MileagePlus award flights from San Juan (SJU) to Seattle (SEA)
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In the last 30 days AwardTool saw United MileagePlus award space for SJU→SEA in economy, premium economy, business class and first class. Lowest economy: 20,000 miles + $5.60 (economy space on 37 dates). Lowest business class: 80,600 miles + $5.60 (business-class space on 37 dates). Lowest first class: 73,800 miles + $5.60 (first-class space on 37 dates).
Prices observed – ; newest observation .
Page regenerated from the Oct 19, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest economy
- 20,000 miles + $5.60
- economy space on 37 dates
- Lowest business class
- 80,600 miles + $5.60
- business-class space on 37 dates
- Lowest first class
- 73,800 miles + $5.60
- first-class space on 37 dates
- Lowest premium economy
- 150,000 miles + $5.60
- premium economy space on 30 dates
MileagePlus award prices by cabin
The lowest one-way United MileagePlus award AwardTool observed on SJU→SEA in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 20,000 miles + $5.60 | 1 stop | JetBlue (B6), United Airlines (UA) | 9+ | 37 | See dates | |
| Premium Economy | 150,000 miles + $5.60 | 2 stops | JetBlue (B6), United Airlines (UA) | 9+ | 30 | See dates | |
| Business | 80,600 miles + $5.60 | 1 stop | United Airlines (UA) | 9+ | 37 | See dates | |
| First | 73,800 miles + $5.60 | 2 stops | JetBlue (B6), United Airlines (UA) | 9+ | 37 | 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 | 35,800 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Economy | 36,700 miles + $5.60 | 9+ | 2 stops | Check this date | ||
| Economy | 70,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Premium Economy | 150,000 miles + $5.60 | 9+ | 2 stops | Check this date | ||
| Business | 103,200 miles + $5.60 | 8 | 1 stop | Check this date | ||
| Business | 133,900 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| First | 76,900 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| First | 88,000 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 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 | 37 of 37 | 100% | |
| Premium Economy | 30 of 37 | 81% | |
| Business | 37 of 37 | 100% | |
| First | 37 of 37 | 100% |
Best months to fly from San Juan (SJU) to Seattle (SEA) with MileagePlus
| Month | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| 36,700 (2 dates) | 150,000 (2 dates) | 103,200 (2 dates) | 76,900 (2 dates) | |
| 35,800 (6 dates) | 150,000 (6 dates) | 133,900 (6 dates) | 88,000 (6 dates) | |
| 20,000 (3 dates) | 150,000 (1 date) | 113,800 (3 dates) | 161,300 (3 dates) | |
| 20,000 (9 dates) | 150,000 (5 dates) | 97,300 (9 dates) | 88,000 (9 dates) | |
| 32,100 (1 date) | — | 80,600 (1 date) | 161,700 (1 date) | |
| 22,500 (16 dates) | 150,000 (16 dates) | 86,900 (16 dates) | 73,800 (16 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 San Juan (SJU) to Seattle (SEA)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| Alaska Atmos Rewards | 22,500 pts + $25.60 | — | — | 45,000 pts + $25.60Lowest |
| American Airlines AAdvantage | 17,500 pts + $5.60Lowest | — | 27,500 pts + $5.60LowestMixed cabin | — |
| Avianca LifeMiles | 17,500 pts + $29.00 | — | — | — |
| Delta SkyMiles | 23,900 pts + $5.60 | — | — | 55,900 pts + $5.60 |
| Etihad Guest | 43,000 pts + $38.00 | — | 80,000 pts + $38.00 | — |
| GOL Smiles | 60,500 pts + taxes not reported | — | 139,200 pts + taxes not reported | — |
| United MileagePlus | 20,000 pts + $5.60 | 150,000 pts + $5.60Lowest | 80,600 pts + $5.60 | 73,800 pts + $5.60 |
Questions about MileagePlus award flights from San Juan (SJU) to Seattle (SEA)
How many miles do you need to fly from San Juan (SJU) to Seattle (SEA) with United MileagePlus?
The lowest one-way United MileagePlus awards AwardTool observed in the last 30 days (newest observation Oct 15, 2026): economy 20,000 miles + $5.60, with a typical monthly low of 22,500 miles over 6 months and award space on 37 departure dates; premium economy 150,000 miles + $5.60, the lowest price in each of 5 months, with award space on 30 departure dates; business class 80,600 miles + $5.60, with a typical monthly low of 97,300 miles over 6 months and award space on 37 departure dates; first class 73,800 miles + $5.60, with a typical monthly low of 88,000 miles over 6 months and award space on 37 departure dates. Monthly lows varied in economy (20,000 to 36,700 miles), business class (80,600 to 133,900 miles) and first class (73,800 to 161,700 miles), so the award on your dates may cost more. Search live before transferring points.
What's the lowest MileagePlus award from San Juan (SJU) to Seattle (SEA)?
In economy, 20,000 miles + $5.60. United MileagePlus showed economy award space on 37 departure dates at any price (newest observation Oct 15, 2026, 23:46 UTC). In business class, 80,600 miles + $5.60. United MileagePlus showed business-class award space on 37 departure dates at any price (newest observation Oct 15, 2026, 23:46 UTC). Search live before transferring points.
Can you book nonstop awards from San Juan (SJU) to Seattle (SEA) 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 San Juan (SJU) to Seattle (SEA)?
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 San Juan (SJU) 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 Feb 2027 departures: 20,000 miles (9 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.