United MileagePlus award flights from Austin (AUS) to San Juan (SJU)
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In the last 30 days AwardTool saw United MileagePlus award space for AUS→SJU in economy, business class and first class. Lowest economy: 20,000 miles + $5.60 (economy space on 37 dates). Lowest business class: 38,700 miles + $5.60 (business-class space on 37 dates). Lowest first class: 38,700 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
- 38,700 miles + $5.60
- business-class space on 37 dates
- Lowest first class
- 38,700 miles + $5.60
- first-class space on 37 dates
MileagePlus award prices by cabin
The lowest one-way United MileagePlus award AwardTool observed on AUS→SJU 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 | |
| Business | 38,700 miles + $5.60 | 1 stop | JetBlue (B6), United Airlines (UA) | 9+ | 37 | See dates | |
| First | 38,700 miles + $5.60 | 2 stops | 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 | 20,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Economy | 20,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Economy | 20,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Business | 58,100 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Business | 68,800 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Business | 72,800 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| First | 61,600 miles + $5.60 | 6 | 2 stops | Check this date | ||
| First | 68,900 miles + $5.60 | 9+ | 2 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 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% | |
| Business | 37 of 37 | 100% | |
| First | 37 of 37 | 100% |
Best months to fly from Austin (AUS) to San Juan (SJU) with MileagePlus
| Month | Economy | Business | First |
|---|---|---|---|
| 20,000 (1 date) | 82,000 (1 date) | 61,600 (1 date) | |
| 20,000 (12 dates) | 58,100 (12 dates) | 68,900 (12 dates) | |
| 51,600 (9 dates) | 73,200 (9 dates) | 86,200 (9 dates) | |
| 20,000 (4 dates) | 58,700 (4 dates) | 58,700 (4 dates) | |
| 20,000 (6 dates) | 38,700 (6 dates) | 38,700 (6 dates) | |
| 22,500 (5 dates) | 57,700 (5 dates) | 53,700 (5 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 Austin (AUS) to San Juan (SJU)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Business | First |
|---|---|---|---|
| Air Canada Aeroplan | 17,500 pts + $75.65 | — | — |
| Alaska Atmos Rewards | 17,500 pts + $25.60 | — | 35,000 pts + $25.60Lowest |
| American Airlines AAdvantage | 17,500 pts + $5.60 | 42,000 pts + $5.60 | — |
| Delta SkyMiles | 9,800 pts + $5.60Lowest | — | 47,300 pts + $5.60 |
| Etihad Guest | 28,000 pts + $38.00 | 60,000 pts + $38.00 | — |
| GOL Smiles | 41,100 pts + taxes not reported | 100,600 pts + taxes not reported | — |
| JetBlue TrueBlue | 11,500 pts + $5.60 | — | — |
| United MileagePlus | 20,000 pts + $5.60 | 38,700 pts + $5.60Lowest | 38,700 pts + $5.60 |
Questions about MileagePlus award flights from Austin (AUS) to San Juan (SJU)
How many miles do you need to fly from Austin (AUS) to San Juan (SJU) 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 20,000 miles over 6 months and award space on 37 departure dates; business class 38,700 miles + $5.60, with a typical monthly low of 58,100 miles over 6 months and award space on 37 departure dates; first class 38,700 miles + $5.60, with a typical monthly low of 58,700 miles over 6 months and award space on 37 departure dates. Monthly lows varied in economy (20,000 to 51,600 miles), business class (38,700 to 82,000 miles) and first class (38,700 to 86,200 miles), so the award on your dates may cost more. Search live before transferring points.
What's the lowest MileagePlus award from Austin (AUS) to San Juan (SJU)?
In economy, 20,000 miles + $5.60. Seen Oct 14, 2026, 20:55 UTC for an Oct 27, 2026 departure. United MileagePlus showed economy award space on 37 departure dates at any price (newest observation Oct 15, 2026, 00:20 UTC). In business class, 38,700 miles + $5.60. United MileagePlus showed business-class award space on 37 departure dates at any price (newest observation Oct 15, 2026, 00:20 UTC). Search live before transferring points.
Can you book nonstop awards from Austin (AUS) to San Juan (SJU) 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 Austin (AUS) to San Juan (SJU)?
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 Austin (AUS) to San Juan (SJU)?
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: 20,000 miles (12 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.