Delta SkyMiles award flights from St. Louis (STL) to Barcelona (BCN)
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In the last 30 days AwardTool saw Delta SkyMiles award space for STL→BCN in economy, premium economy, business class and first class. Lowest economy: 29,100 miles + $5.60 (economy space on 43 dates). Lowest business class: 125,000 miles + $36.10 on a mixed-cabin itinerary (part of the trip in a lower cabin; business-class space on 12 dates).
Prices observed – ; newest observation .
Page regenerated from the Oct 19, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest economy
- 29,100 miles + $5.60
- economy space on 43 dates
- Lowest business class (mixed cabin)
- 125,000 miles + $36.10
- business-class space on 12 dates · part of the trip in a lower cabin
- Lowest first class
- 329,500 miles + $5.60
- first-class space on 43 dates
- Lowest premium economy
- 145,900 miles + $5.60
- premium economy space on 40 dates
SkyMiles award prices by cabin
The lowest one-way Delta SkyMiles award AwardTool observed on STL→BCN in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 29,100 miles + $5.60 | 1 stop | Air France (AF), Delta Air Lines (DL), KLM (KL) | 9+ | 43 | See dates | |
| Premium Economy | 145,900 miles + $5.60 | 1 stop | Air France (AF), Delta Air Lines (DL), KLM (KL) | 6 | 40 | See dates | |
| Business | 125,000 miles + $36.10Mixed cabin | 2 stops | Delta Air Lines (DL), KLM (KL) | 1 | 12 | See dates | |
| First | 329,500 miles + $5.60 | 1 stop | Air France (AF), Delta Air Lines (DL), KLM (KL) | 1 | 43 | 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 SkyMiles award examples
| Departure | Cabin | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|
| Economy | 56,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Economy | 56,000 miles + $5.60 | 9+ | 1 stop | Check this date | ||
| Economy | 65,800 miles + $35.40 | 9+ | 2 stops | Check this date | ||
| Premium Economy | 262,000 miles + $5.60 | 3 | 1 stop | Check this date | ||
| Premium Economy | 343,300 miles + $5.60 | 1 | 2 stops | Check this date | ||
| Premium Economy | 394,100 miles + $5.60 | 2 | 2 stops | Check this date | ||
| Business | 499,900 miles + $5.60 | 3 | 1 stop | Check this date | ||
| First | 499,900 miles + $5.60 | 2 | 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 SkyMiles award space showed up
Departure dates in the next 365 days that AwardTool checked for Delta SkyMiles 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 | 43 of 44 | 97% | |
| Premium Economy | 40 of 44 | 90% | |
| Business | 12 of 44 | 27% | |
| First | 43 of 44 | 97% |
Best months to fly from St. Louis (STL) to Barcelona (BCN) with SkyMiles
| Month | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| 56,000 (6 dates) | 262,000 (3 dates) | 499,900 (2 dates) | 499,900 (6 dates) | |
| 29,100 (5 dates) | 145,900 (5 dates) | 125,000 (3 dates)Mixed cabin | 329,500 (5 dates) | |
| 32,800 (6 dates) | 150,000 (6 dates) | 499,900 (2 dates) | 499,900 (6 dates) | |
| 37,900 (14 dates) | 182,200 (14 dates) | 440,800 (4 dates) | 418,300 (14 dates) | |
| 55,200 (8 dates) | 235,500 (8 dates) | — | 389,500 (8 dates) | |
| 61,500 (1 date) | 227,900 (1 date) | 423,100 (1 date) | 423,100 (1 date) | |
| 29,100 (3 dates) | 145,900 (3 dates) | — | 499,900 (3 dates) |
How to get SkyMiles
- American Express Membership Rewards: 1:1 · Instant
Check current transfer bonuses. Most transfers can't be reversed.
SkyMiles vs other programs from St. Louis (STL) to Barcelona (BCN)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| Air Canada Aeroplan | 40,000 pts + $75.71 | 94,794 pts + $79.51 | 75,000 pts + $98.51Mixed cabin | — |
| Air France/KLM Flying Blue | 36,000 pts + $159.20 | 97,000 pts + $251.70 | 170,500 pts + $378.60 | — |
| Alaska Atmos Rewards | 27,500 pts + $25.60 | 45,000 pts + $569.90 | 55,000 pts + $25.60LowestMixed cabin | 55,000 pts + $25.60Lowest |
| American Airlines AAdvantage | 21,000 pts + $5.60 | 40,000 pts + $58.80Lowest | 57,500 pts + $64.40 | — |
| Avianca LifeMiles | 40,000 pts + $28.50 | — | — | — |
| Delta SkyMiles | 29,100 pts + $5.60 | 145,900 pts + $5.60 | 125,000 pts + $36.10Mixed cabin | 329,500 pts + $5.60 |
| Etihad Guest | 57,000 pts + $38.00 | — | 115,000 pts + $249.50Mixed cabin | — |
| GOL Smiles | 13,200 pts + taxes not reported | 567,800 pts + taxes not reported | — | — |
| JetBlue TrueBlue | 51,000 pts + $5.60 | — | — | — |
| Lufthansa Miles & More | 88 pts + $326.20Lowest | — | 80,462 pts + $1,499.60 | — |
| Qantas Frequent Flyer | 29,000 pts + $349.00 | 100,600 pts + $1,605.40 | 82,100 pts + $1,454.00 | — |
| United MileagePlus | 38,300 pts + $5.60 | 55,000 pts + $26.50 | 80,000 pts + $5.60Mixed cabin | — |
Questions about SkyMiles award flights from St. Louis (STL) to Barcelona (BCN)
How many miles do you need to fly from St. Louis (STL) to Barcelona (BCN) with Delta SkyMiles?
The lowest one-way Delta SkyMiles awards AwardTool observed in the last 30 days (newest observation Oct 13, 2026): economy 29,100 miles + $5.60, with a typical monthly low of 37,900 miles over 7 months and award space on 43 departure dates; premium economy 145,900 miles + $5.60, with a typical monthly low of 182,200 miles over 7 months and award space on 40 departure dates; business class 125,000 miles + $36.10, a mixed-cabin award, with a typical monthly low of 440,800 miles over 5 months and award space on 12 departure dates; first class 329,500 miles + $5.60, with a typical monthly low of 423,100 miles over 7 months and award space on 43 departure dates. Monthly lows varied in economy (29,100 to 61,500 miles), premium economy (145,900 to 262,000 miles), business class (125,000 to 499,900 miles) and first class (329,500 to 499,900 miles), so the award on your dates may cost more. Search live before transferring points.
What's the lowest SkyMiles award from St. Louis (STL) to Barcelona (BCN)?
In economy, 29,100 miles + $5.60. Delta SkyMiles showed economy award space on 43 departure dates at any price (newest observation Oct 13, 2026, 18:42 UTC). In business class, 125,000 miles + $36.10 on a mixed-cabin itinerary (part of the trip in a lower cabin). Delta SkyMiles showed business-class award space on 12 departure dates at any price (newest observation Oct 13, 2026, 18:42 UTC). Search live before transferring points.
Can you book nonstop awards from St. Louis (STL) to Barcelona (BCN) with SkyMiles?
AwardTool hasn't observed nonstop Delta SkyMiles award space on this route in the last 30 days. That doesn't mean nonstop space never appears.
Which credit card points can book SkyMiles awards from St. Louis (STL) to Barcelona (BCN)?
American Express Membership Rewards (1:1, Instant). Check current transfer bonuses; most transfers can't be reversed.
Which months had the lowest SkyMiles award prices from St. Louis (STL) to Barcelona (BCN)?
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: 29,100 miles (5 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.