United MileagePlus award flights from Boston (BOS) to Kos (KGS)
In the last 30 days AwardTool saw United MileagePlus award space for BOS→KGS in economy, premium economy and business class. Lowest economy: 44,000 miles + $28.30 (economy space on 242 dates). Lowest business class: 88,000 miles + $28.30 (business-class space on 199 dates). Lowest premium economy: 55,000 miles + $28.30 (premium economy space on 190 dates).
Prices observed – ; newest observation .
Page regenerated from the Oct 16, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest economy
- 44,000 miles + $28.30
- economy space on 242 dates
- Lowest business class
- 88,000 miles + $28.30
- business-class space on 199 dates
- Lowest premium economy
- 55,000 miles + $28.30
- premium economy space on 190 dates
MileagePlus award prices by cabin
The lowest one-way United MileagePlus award AwardTool observed on BOS→KGS in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 44,000 miles + $28.30 | 2 stops | Eurowings Discover (4Y), Aegean Airlines (A3), Air Canada (AC), ITA Airways (AZ) +14 more | 9+ | 242 | See dates | |
| Premium Economy | 55,000 miles + $28.30 | 2 stops | Eurowings Discover (4Y), Aegean Airlines (A3), ITA Airways (AZ), JetBlue (B6) +5 more | 6 | 190 | See dates | |
| Business | 88,000 miles + $28.30 | 2 stops | Eurowings Discover (4Y), Aegean Airlines (A3), Air Canada (AC), ITA Airways (AZ) +14 more | 1 | 199 | 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 | 44,000 miles + $28.30 | 9+ | 2 stops | Check this date | ||
| Economy | 44,000 miles + $28.30 | 9+ | 2 stops | Check this date | ||
| Economy | 44,000 miles + $31.10 | 1 | 3 stops | Check this date | ||
| Premium Economy | 55,000 miles + $28.30 | 6 | 2 stops | Check this date | ||
| Premium Economy | 55,000 miles + $33.50 | 1 | 2 stops | Check this date | ||
| Premium Economy | 55,000 miles + $33.50 | 2 | 2 stops | Check this date | ||
| Business | 88,000 miles + $28.30 | 1 | 2 stops | Check this date | ||
| Business | 88,000 miles + $47.90 | 1 | 3 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 | 242 of 330 | 73% | |
| Premium Economy | 190 of 330 | 57% | |
| Business | 199 of 330 | 60% |
Best months to fly from Boston (BOS) to Kos (KGS) with MileagePlus
| Month | Economy | Premium Economy | Business |
|---|---|---|---|
| 44,000 (16 dates) | 55,000 (14 dates) | 88,000 (15 dates) | |
| 44,000 (30 dates) | 55,000 (30 dates) | 88,000 (30 dates) | |
| 44,000 (18 dates) | 55,000 (18 dates) | 88,000 (18 dates) | |
| 44,000 (21 dates) | 55,000 (21 dates) | 88,000 (21 dates) | |
| 44,000 (26 dates) | 55,000 (26 dates) | 88,000 (26 dates) | |
| 44,000 (26 dates) | 55,000 (26 dates) | 88,000 (26 dates) | |
| 44,000 (16 dates) | 55,000 (15 dates) | 90,000 (15 dates) | |
| 44,000 (19 dates) | 180,000 (7 dates) | 200,000 (7 dates) | |
| 44,000 (24 dates) | 180,000 (12 dates) | 322,300 (12 dates) | |
| 44,000 (25 dates) | 180,000 (8 dates) | 88,000 (12 dates) | |
| 44,000 (18 dates) | 180,000 (10 dates) | 88,000 (14 dates) | |
| 44,000 (3 dates) | 180,000 (3 dates) | 200,000 (3 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 Boston (BOS) to Kos (KGS)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Premium Economy | Business |
|---|---|---|---|
| Air Canada Aeroplan | 42,500 pts + $92.41 | 66,585 pts + $101.11 | 75,000 pts + $92.41 |
| Alaska Atmos Rewards | 35,000 pts + $118.00 | 45,000 pts + $118.00 | 260,000 pts + $118.00Mixed cabin |
| American Airlines AAdvantage | 22,500 pts + $13.50Lowest | 40,000 pts + $18.30Lowest | 57,500 pts + $35.20Lowest |
| United MileagePlus | 44,000 pts + $28.30 | 55,000 pts + $28.30 | 88,000 pts + $28.30 |
Questions about MileagePlus award flights from Boston (BOS) to Kos (KGS)
How many miles do you need to fly from Boston (BOS) to Kos (KGS) with United MileagePlus?
The lowest one-way United MileagePlus awards AwardTool observed in the last 30 days (newest observation Oct 15, 2026): economy 44,000 miles + $28.30, the lowest price in each of 12 months, with award space on 242 departure dates; premium economy 55,000 miles + $28.30, with monthly lows of 55,000 miles in 7 months and 180,000 miles in 5 months, and award space on 190 departure dates; business class 88,000 miles + $28.30, with a typical monthly low of 88,000 miles over 12 months and award space on 199 departure dates. Monthly lows varied in premium economy (55,000 to 180,000 miles) and business class (88,000 to 322,300 miles), so the award on your dates may cost more. Search live before transferring points.
What's the lowest MileagePlus award from Boston (BOS) to Kos (KGS)?
In economy, 44,000 miles + $28.30. Seen Oct 15, 2026, 22:38 UTC for a Dec 6, 2026 departure. United MileagePlus showed economy award space on 242 departure dates at any price (newest observation Oct 15, 2026, 22:58 UTC). In business class, 88,000 miles + $28.30. Seen Oct 15, 2026, 22:33 UTC for a Nov 4, 2026 departure. United MileagePlus showed business-class award space on 199 departure dates at any price (newest observation Oct 15, 2026, 22:58 UTC). Search live before transferring points.
Can you book nonstop awards from Boston (BOS) to Kos (KGS) 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 Boston (BOS) to Kos (KGS)?
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 Boston (BOS) to Kos (KGS)?
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: 44,000 miles (30 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.