United MileagePlus award flights from San Francisco (SFO) to Liberia, Costa Rica (LIR)
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In the last 30 days AwardTool saw United MileagePlus award space for SFO→LIR in economy, business class and first class. Lowest economy: 20,000 miles + $24.21 (economy space on 71 dates). Lowest business class: 60,700 miles + $29.81 (business-class space on 66 dates). Lowest first class: 60,700 miles + $24.21 (first-class space on 70 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 + $24.21
- economy space on 71 dates
- Lowest business class
- 60,700 miles + $29.81
- business-class space on 66 dates
- Lowest first class
- 60,700 miles + $24.21
- first-class space on 70 dates
MileagePlus award prices by cabin
The lowest one-way United MileagePlus award AwardTool observed on SFO→LIR in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 20,000 miles + $24.21 | Nonstop | Air Canada (AC), JetBlue (B6), United Airlines (UA) | 9+ | 71 | See dates | |
| Business | 60,700 miles + $29.81 | 1 stopNonstop from 70,200 pts | JetBlue (B6), United Airlines (UA) | 9+ | 66 | See dates | |
| First | 60,700 miles + $24.21 | 1 stop | United Airlines (UA) | 9+ | 70 | 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 + $24.21 | 9+ | 1 stop | Check this date | ||
| Economy | 20,000 miles + $24.21 | 9+ | Nonstop | Check this date | ||
| Economy | 20,000 miles + $24.21 | 7 | Nonstop | Check this date | ||
| Business | 67,800 miles + $24.21 | 9+ | 1 stop | Check this date | ||
| Business | 70,100 miles + $24.21 | 9+ | 1 stop | Check this date | ||
| Business | 85,300 miles + $24.21 | 2 | Nonstop | Check this date | ||
| First | 64,700 miles + $29.81 | 8 | 2 stops | Check this date | ||
| First | 69,700 miles + $24.21 | 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 | 71 of 71 | 100% | |
| Business | 66 of 71 | 92% | |
| First | 70 of 71 | 98% |
Best months to fly from San Francisco (SFO) to Liberia, Costa Rica (LIR) with MileagePlus
| Month | Economy | Business | First |
|---|---|---|---|
| 20,000 (5 dates) | 67,800 (5 dates) | 73,600 (5 dates) | |
| 20,000 (13 dates) | 70,100 (9 dates) | 64,700 (12 dates) | |
| 20,000 (10 dates) | 62,400 (10 dates) | 62,400 (10 dates) | |
| 20,000 (19 dates) | 60,700 (19 dates) | 60,700 (19 dates) | |
| 20,000 (7 dates) | 65,200 (7 dates) | 67,600 (7 dates) | |
| 22,500 (2 dates) | 92,100 (2 dates) | 73,100 (2 dates) | |
| 22,500 (1 date) | 143,900 (1 date) | 99,100 (1 date) | |
| 20,000 (4 dates) | 76,400 (4 dates) | 86,800 (4 dates) | |
| 20,000 (7 dates) | 76,400 (7 dates) | 76,400 (7 dates) | |
| 20,000 (2 dates) | 65,100 (2 dates) | 86,400 (2 dates) | |
| 36,900 (1 date) | — | 99,100 (1 date) |
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 Francisco (SFO) to Liberia, Costa Rica (LIR)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| Air Canada Aeroplan | 22,633 pts + $127.12 | 58,961 pts + $102.42Lowest | 180,172 pts + $94.42Mixed cabin | — |
| Air France/KLM Flying Blue | 27,500 pts + $56.61 | — | — | — |
| Alaska Atmos Rewards | 17,500 pts + $24.21 | — | — | 50,000 pts + $44.21Lowest |
| American Airlines AAdvantage | 10,000 pts + $24.21Lowest | — | 27,500 pts + $24.21Lowest | 57,000 pts + $24.21 |
| Avianca LifeMiles | 25,000 pts + $47.03 | — | — | — |
| Delta SkyMiles | 23,600 pts + $24.21 | — | — | 97,500 pts + $24.21 |
| Etihad Guest | 38,000 pts + $56.61 | — | 53,000 pts + $56.61Mixed cabin | — |
| GOL Smiles | 49,600 pts + taxes not reported | 331,400 pts + taxes not reported | 141,800 pts + taxes not reportedMixed cabin | — |
| JetBlue TrueBlue | 14,100 pts + $24.21 | — | 209,600 pts + $24.21 | — |
| Qantas Frequent Flyer | 23,300 pts + $47.61 | — | 76,700 pts + $47.61Mixed cabin | — |
| United MileagePlus | 20,000 pts + $24.21 | — | 60,700 pts + $29.81 | 60,700 pts + $24.21 |
| Virgin Atlantic Flying Club | 40,500 pts + $24.21 | — | — | — |
| Virgin Australia Velocity | 23,500 pts + $27.02 | — | — | — |
Questions about MileagePlus award flights from San Francisco (SFO) to Liberia, Costa Rica (LIR)
How many miles do you need to fly from San Francisco (SFO) to Liberia, Costa Rica (LIR) with United MileagePlus?
The lowest one-way United MileagePlus awards AwardTool observed in the last 30 days (newest observation Oct 19, 2026): economy 20,000 miles + $24.21, with a typical monthly low of 20,000 miles over 11 months and award space on 71 departure dates; business class 60,700 miles + $29.81, with a typical monthly low of 67,800 miles over 10 months and award space on 66 departure dates; first class 60,700 miles + $24.21, with a typical monthly low of 73,600 miles over 11 months and award space on 70 departure dates. Monthly lows varied in economy (20,000 to 36,900 miles), business class (60,700 to 143,900 miles) and first class (60,700 to 99,100 miles), so the award on your dates may cost more. Search live before transferring points.
What's the lowest MileagePlus award from San Francisco (SFO) to Liberia, Costa Rica (LIR)?
In economy, 20,000 miles + $24.21. Seen Sep 28, 2026, 07:29 UTC for an Oct 31, 2026 departure. United MileagePlus showed economy award space on 71 departure dates at any price (newest observation Oct 19, 2026, 18:16 UTC). In business class, 60,700 miles + $29.81. United MileagePlus showed business-class award space on 66 departure dates at any price (newest observation Oct 19, 2026, 18:16 UTC). Search live before transferring points.
Can you book nonstop awards from San Francisco (SFO) to Liberia, Costa Rica (LIR) with MileagePlus?
Yes. AwardTool observed nonstop United MileagePlus award space in business class, and in economy from 20,000 miles.
Which credit card points can book MileagePlus awards from San Francisco (SFO) to Liberia, Costa Rica (LIR)?
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 Francisco (SFO) to Liberia, Costa Rica (LIR)?
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: 20,000 miles (19 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.