Economy award flights from Denver (DEN) to Sofia (SOF)
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In the last 30 days AwardTool saw economy award space on 4 programs for DEN→SOF. Lowest: 22,500 miles + $24.80 with American Airlines AAdvantage, which showed economy award space on 5 dates. No nonstop economy award was seen in the last 30 days.
Prices observed – ; newest observation .
Page regenerated from the Oct 19, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest observed
- 22,500 miles + $24.80
- American Airlines AAdvantage
- Programs with space
- 4 of 4
- programs seen on this route
- Most dates seen
- 8 of 13
- dates checked · United MileagePlus
- Nonstop
- Not seen
- in the last 30 days
Compare programs for economy
The lowest one-way economy award each program showed on DEN→SOF, sorted by points.
| Program | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| American Airlines AAdvantageLowest observed | 22,500 pts + $24.80 | 2 stops | American Airlines (AA), Alaska Airlines (AS), British Airways (BA) | — | 5 | See dates | |
| Alaska Atmos Rewards | 35,000 pts + $373.20 | 1 stop | American Airlines (AA), Alaska Airlines (AS), British Airways (BA) | 1 | 6 | See dates | |
| Air Canada Aeroplan | 42,500 pts + $98.41 | 1 stop | Air Canada (AC), Lufthansa (LH), Austrian (OS), Turkish Airlines (TK) +2 more | 6 | 6 | See dates | |
| United MileagePlus | 44,000 pts + $13.60 | 2 stops | Eurowings Discover (4Y), Aegean Airlines (A3), Air Canada (AC), ITA Airways (AZ) +9 more | 5 | 8 | 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 economy award examples
| Departure | Program | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|
| American Airlines AAdvantage | 22,500 pts + $24.80 | — | 2 stops | Check this date | ||
| American Airlines AAdvantage | 22,500 pts + $24.80 | — | 2 stops | Check this date | ||
| Alaska Atmos Rewards | 35,000 pts + $373.20 | 8 | 1 stop | Check this date | ||
| Alaska Atmos Rewards | 35,000 pts + $373.20 | 9+ | 1 stop | Check this date | ||
| Air Canada Aeroplan | 42,500 pts + $98.41 | 9+ | 1 stop | Check this date | ||
| Air Canada Aeroplan | 42,500 pts + $98.41 | 9+ | 1 stop | Check this date | ||
| United MileagePlus | 44,000 pts + $28.30 | 9+ | 1 stop | Check this date | ||
| United MileagePlus | 44,000 pts + $13.60 | 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 economy award space showed up
Departure dates in the next 365 days that AwardTool checked for each program in the last 30 days, how many had economy award space at any price, and the latest departure with space.
| Program | Dates with space | Share of dates checked | Latest departure with space |
|---|---|---|---|
| American Airlines AAdvantage | 5 of 11 | 45% | |
| Alaska Atmos Rewards | 6 of 11 | 54% | |
| Air Canada Aeroplan | 6 of 11 | 54% | |
| United MileagePlus | 8 of 13 | 61% |
Lowest economy award by month and program
Each program's lowest one-way economy award by departure month, in its own points or miles; taxes vary. — means the program showed no economy space that month.
| Program | ||
|---|---|---|
| American Airlines AAdvantagemiles | 22,500 | 22,500 |
| Alaska Atmos Rewardspoints | 35,000 | 40,000 |
| Air Canada Aeroplanpoints | 42,500 | 42,500 |
| United MileagePlusmiles | 44,000 | 44,000 |
Airlines seen in economy
Airlines that appeared on the award itineraries AwardTool observed, and the programs that showed them.
- Eurowings Discover (4Y): United MileagePlus
- Aegean Airlines (A3): United MileagePlus
- American Airlines (AA): American Airlines AAdvantage and Alaska Atmos Rewards
- Air Canada (AC): Air Canada Aeroplan and United MileagePlus
- Alaska Airlines (AS): American Airlines AAdvantage and Alaska Atmos Rewards
- ITA Airways (AZ): United MileagePlus
- JetBlue (B6): United MileagePlus
- British Airways (BA): American Airlines AAdvantage and Alaska Atmos Rewards
- Lufthansa (LH): Air Canada Aeroplan and United MileagePlus
- LOT Polish Airlines (LO): United MileagePlus
- SWISS (LX): United MileagePlus
- Austrian (OS): Air Canada Aeroplan and United MileagePlus
- Singapore Airlines (SQ): United MileagePlus
- Turkish Airlines (TK): Air Canada Aeroplan and United MileagePlus
- United Airlines (UA): Air Canada Aeroplan and United MileagePlus
- Lufthansa City Airlines (VL): Air Canada Aeroplan and United MileagePlus
Economy on nearby routes
The lowest economy award AwardTool observed on related routes, as each route's page shows it: the return direction, other airports in the same cities, and more routes from Denver (DEN) and to Sofia (SOF). One way, in the program's points or miles; taxes are on each route's page.
| Route | Lowest observed | Program | Dates seen |
|---|---|---|---|
| Denver (DEN) to London Heathrow (LHR)Also from DEN | 9,500 milesNonstop | GOL Smiles | 129 |
| Denver (DEN) to Paris Charles de Gaulle (CDG)Also from DEN | 21,000 miles | American Airlines AAdvantage | 310 |
| Denver (DEN) to Orlando (MCO)Also from DEN | 9,500 miles | American Airlines AAdvantage | 312 |
| Denver (DEN) to Munich (MUC)Also from DEN | 21,000 miles | American Airlines AAdvantage | 312 |
| Bucharest (OTP) to Sofia (SOF)Also to SOF | 15,000 milesNonstop | Delta SkyMiles | 244 |
| San Francisco (SFO) to Sofia (SOF)Also to SOF | 22,500 miles | American Airlines AAdvantage | 17 |
| Chicago O’Hare (ORD) to Sofia (SOF)Also to SOF | 22,500 miles | American Airlines AAdvantage | 9 |
| Los Angeles (LAX) to Sofia (SOF)Also to SOF | 22,500 miles | American Airlines AAdvantage | 10 |
Points that transfer to these programs
| Program | Amex | Bilt | Capital One | Chase | Citi | Wells Fargo |
|---|---|---|---|---|---|---|
| Air Canada Aeroplan | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | — | — |
| Alaska Atmos Rewards | — | 1:1 · ~1 day | — | — | — | — |
| American Airlines AAdvantage | — | — | — | — | 1:1 · Instant | — |
| United MileagePlus | — | 1:1 · Instant | — | 1:1 · Instant | — | — |
Check current transfer bonuses. Most transfers can't be reversed.
Questions about economy award flights from Denver (DEN) to Sofia (SOF)
What's the lowest economy award from Denver (DEN) to Sofia (SOF)?
22,500 miles + $24.80 with American Airlines AAdvantage. Seen Oct 15, 2026, 16:40 UTC for a Nov 3, 2026 departure. American Airlines AAdvantage showed economy award space on 5 departure dates at any price (newest observation Oct 15, 2026, 19:26 UTC). Search live before transferring points.
Which programs had economy award space from Denver (DEN) to Sofia (SOF)?
American Airlines AAdvantage (5 dates), Alaska Atmos Rewards (6 dates), Air Canada Aeroplan (6 dates) and United MileagePlus (8 dates), in the last 30 days.
Is there nonstop economy award space from Denver (DEN) to Sofia (SOF)?
AwardTool hasn't observed nonstop economy award space on this route in the last 30 days. That doesn't mean nonstop space never appears.