Alaska Atmos Rewards award flights from St. Louis (STL) to Barcelona (BCN)

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In the last 30 days AwardTool saw Alaska Atmos Rewards award space for STL→BCN in economy, premium economy, business class and first class. Lowest economy: 27,500 points + $25.60 (economy space on 21 dates). Lowest business class: 55,000 points + $25.60 on a mixed-cabin itinerary (part of the trip in a lower cabin; business-class space on 5 dates).

Prices observed – ; newest observation .

Page regenerated from the Oct 19, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.

Lowest economy
27,500 points + $25.60
economy space on 21 dates
Lowest business class (mixed cabin)
55,000 points + $25.60
business-class space on 5 dates · part of the trip in a lower cabin
Lowest first class
55,000 points + $25.60
first-class space on 4 dates
Lowest premium economy
45,000 points + $569.90
premium economy space on 2 dates

Atmos award prices by cabin

The lowest one-way Alaska Atmos Rewards award AwardTool observed on STL→BCN in each cabin, in points plus taxes.

CabinPoints + taxesStopsAirlines seenSeatsDates seenNewest observation
Economy27,500 points + $25.601 stopAmerican Airlines (AA), British Airways (BA), Icelandair (FI)9+21See dates
Premium Economy45,000 points + $569.901 stopBritish Airways (BA)62See dates
Business55,000 points + $25.60Mixed cabin1 stopAmerican Airlines (AA), British Airways (BA)35See dates
First55,000 points + $25.601 stopAmerican Airlines (AA), British Airways (BA)14See 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 Atmos award examples

Awards AwardTool observed for departures in the next 60 days (one way, per traveler)
DepartureCabinPoints + taxesSeatsStopsObserved (UTC)
Economy27,500 points + $25.609+1 stopCheck this date
Economy27,500 points + $25.609+1 stopCheck this date
Economy27,500 points + $25.609+1 stopCheck this date
First55,000 points + $25.6011 stopCheck 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 Atmos award space showed up

Departure dates in the next 365 days that AwardTool checked for Alaska Atmos Rewards in the last 30 days, how many had award space in each cabin at any price, and the latest departure with space.

CabinDates with spaceShare of dates checkedLatest departure with space
Economy21 of 4744%
Premium Economy2 of 474%
Business5 of 4710%
First4 of 478%

Best months to fly from St. Louis (STL) to Barcelona (BCN) with Atmos

Lowest prices among the dates we observed, by departure month. A record, not a forecast.
MonthEconomyPremium EconomyBusinessFirst
27,500 (5 dates)——55,000 (1 date)
35,000 (5 dates)—85,000 (2 dates)85,000 (2 dates)
27,500 (4 dates)45,000 (1 date)70,000 (1 date)—
27,500 (5 dates)———
35,000 (1 date)45,000 (1 date)70,000 (1 date)—
55,000 (1 date)———
——55,000 (1 date)Mixed cabin70,000 (1 date)

How to get Atmos points

Check current transfer bonuses. Most transfers can't be reversed.

Atmos vs other programs from St. Louis (STL) to Barcelona (BCN)

Lowest one-way award per program and cabin on this route.

ProgramEconomyPremium EconomyBusinessFirst
Air Canada Aeroplan40,000 pts + $75.7194,794 pts + $79.5175,000 pts + $98.51Mixed cabin—
Air France/KLM Flying Blue36,000 pts + $159.2097,000 pts + $251.70170,500 pts + $378.60—
Alaska Atmos Rewards27,500 pts + $25.6045,000 pts + $569.9055,000 pts + $25.60LowestMixed cabin55,000 pts + $25.60Lowest
American Airlines AAdvantage21,000 pts + $5.6040,000 pts + $58.80Lowest57,500 pts + $64.40—
Avianca LifeMiles40,000 pts + $28.50———
Delta SkyMiles29,100 pts + $5.60145,900 pts + $5.60125,000 pts + $36.10Mixed cabin329,500 pts + $5.60
Etihad Guest57,000 pts + $38.00—115,000 pts + $249.50Mixed cabin—
GOL Smiles13,200 pts + taxes not reported567,800 pts + taxes not reported——
JetBlue TrueBlue51,000 pts + $5.60———
Lufthansa Miles & More88 pts + $326.20Lowest—80,462 pts + $1,499.60—
Qantas Frequent Flyer29,000 pts + $349.00100,600 pts + $1,605.4082,100 pts + $1,454.00—
United MileagePlus38,300 pts + $5.6055,000 pts + $26.5080,000 pts + $5.60Mixed cabin—

Questions about Atmos award flights from St. Louis (STL) to Barcelona (BCN)

How many points do you need to fly from St. Louis (STL) to Barcelona (BCN) with Alaska Atmos Rewards?

The lowest one-way Alaska Atmos Rewards awards AwardTool observed in the last 30 days: economy 27,500 points + $25.60, with a typical monthly low of 27,500 points over 6 months and award space on 21 departure dates (newest observation Oct 15, 2026); premium economy 45,000 points + $569.90, with award space on 2 departure dates (newest observation Sep 22, 2026); business class 55,000 points + $25.60, a mixed-cabin award, with a typical monthly low of 70,000 points over 4 months and award space on 5 departure dates (newest observation Sep 25, 2026); first class 55,000 points + $25.60, with a typical monthly low of 70,000 points over 3 months and award space on 4 departure dates (newest observation Sep 25, 2026). Monthly lows varied in economy (27,500 to 55,000 points), business class (55,000 to 85,000 points) and first class (55,000 to 85,000 points), so the award on your dates may cost more. Search live before transferring points.

What's the lowest Atmos award from St. Louis (STL) to Barcelona (BCN)?

In economy, 27,500 points + $25.60. Seen Oct 13, 2026, 18:42 UTC for an Oct 21, 2026 departure. Alaska Atmos Rewards showed economy award space on 21 departure dates at any price (newest observation Oct 15, 2026, 13:45 UTC). In business class, 55,000 points + $25.60 on a mixed-cabin itinerary (part of the trip in a lower cabin). Alaska Atmos Rewards showed business-class award space on 5 departure dates at any price (newest observation Sep 25, 2026, 01:10 UTC). Search live before transferring points.

Can you book nonstop awards from St. Louis (STL) to Barcelona (BCN) with Atmos?

AwardTool hasn't observed nonstop Alaska Atmos Rewards award space on this route in the last 30 days. That doesn't mean nonstop space never appears.

Which credit card points can book Atmos awards from St. Louis (STL) to Barcelona (BCN)?

Bilt Rewards (1:1, ~1 day). Check current transfer bonuses; most transfers can't be reversed.

Which months had the lowest Atmos 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 Oct 2026 departures: 27,500 points (5 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.

Related pages

How this page is built

These figures come from AwardTool's cached award searches across 29 loyalty programs. A value counts only when AwardTool observed it in the last 30 days, for departures within 365 days of the data date. Each price is the lowest one-way award seen per passenger, in the program's points or miles, with taxes and fees in USD. A missing value means AwardTool hasn't seen that award recently, not that none exists. The date-by-date calendar is in the app: a limited window on the free plan and 365 days with Pro.

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