Economy award flights from San Francisco (SFO) to Bilbao (BIO)

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In the last 30 days AwardTool saw economy award space on 10 programs for SFO→BIO. Lowest: 18,750 miles + $155.70 with Air France/KLM Flying Blue, which showed economy award space on 49 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
18,750 miles + $155.70
Air France/KLM Flying Blue
Programs with space
10 of 10
programs seen on this route
Most dates seen
53 of 55
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 SFO→BIO, sorted by points.

ProgramPoints + taxesStopsAirlines seenSeatsDates seenNewest observation
Air France/KLM Flying BlueLowest observed18,750 pts + $155.701 stopAir France (AF), Delta Air Lines (DL), KLM (KL), SAS (SK) +2 more9+49See dates
TAP Air Portugal Miles&Go19,000 pts + $84.121 stopTAP Portugal (TP)714See dates
American Airlines AAdvantage22,500 pts + $9.001 stopAmerican Airlines (AA), Alaska Airlines (AS), British Airways (BA), Aer Lingus (EI) +1 more—35See dates
Alaska Atmos Rewards35,000 pts + $30.502 stopsAlaska Airlines (AS), Royal Air Maroc (AT), Aer Lingus (EI), IBERIA (IB)429See dates
Delta SkyMiles37,100 pts + $24.502 stopsAir France (AF), Delta Air Lines (DL), KLM (KL)9+44See dates
United MileagePlus40,000 pts + $5.602 stopsEurowings Discover (4Y), Air Canada (AC), ITA Airways (AZ), JetBlue (B6) +13 more9+53See dates
Qantas Frequent Flyer51,800 pts + $407.401 stopAmerican Airlines (AA), Air France (AF), Alaska Airlines (AS), British Airways (BA) +2 more118See dates
Air Canada Aeroplan55,000 pts + $75.712 stopsAir Canada (AC), Air Dolomiti (EN), Eurowings (EW), Lufthansa (LH) +4 more9+45See dates
Turkish Miles & Smiles55,000 pts + taxes not reported1 stopTurkish Airlines (TK)242See dates
Avianca LifeMiles55,000 pts + $52.101 stopLufthansa (LH), SWISS (LX), Brussels Airlines (SN), Singapore Airlines (SQ) +1 more9+34See 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

Awards AwardTool observed for departures in the next 60 days (one way, per traveler)
DepartureProgramPoints + taxesSeatsStopsObserved (UTC)
TAP Air Portugal Miles&Go19,000 pts + $84.7931 stopCheck this date
American Airlines AAdvantage22,500 pts + $9.00—2 stopsCheck this date
Air France/KLM Flying Blue25,000 pts + $152.909+1 stopCheck this date
Alaska Atmos Rewards42,500 pts + $29.0041 stopCheck this date
United MileagePlus44,000 pts + $28.6071 stopCheck this date
Delta SkyMiles44,600 pts + $35.409+2 stopsCheck this date
Qantas Frequent Flyer54,700 pts + $364.3022 stopsCheck this date
Avianca LifeMiles55,000 pts + $52.109+1 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 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.

ProgramDates with spaceShare of dates checkedLatest departure with space
Air France/KLM Flying Blue49 of 49100%
TAP Air Portugal Miles&Go14 of 3145%
American Airlines AAdvantage35 of 5959%
Alaska Atmos Rewards29 of 5156%
Delta SkyMiles44 of 4891%
United MileagePlus53 of 5596%
Qantas Frequent Flyer18 of 5135%
Air Canada Aeroplan45 of 5384%
Turkish Miles & Smiles42 of 4887%
Avianca LifeMiles34 of 4772%

Best months for economy from San Francisco (SFO) to Bilbao (BIO)

Lowest prices among the dates we observed, by departure month. A record, not a forecast.
MonthLowest observedProgramDates
19,000 pts + taxes varyTAP Air Portugal Miles&Go4
19,000 pts + taxes varyTAP Air Portugal Miles&Go5
22,500 pts + taxes varyAmerican Airlines AAdvantage1
18,750 pts + taxes varyAir France/KLM Flying Blue3
19,000 pts + taxes varyTAP Air Portugal Miles&Go1
25,000 pts + taxes varyAir France/KLM Flying Blue3
25,000 pts + taxes varyAir France/KLM Flying Blue2
25,000 pts + taxes varyAir France/KLM Flying Blue4
25,000 pts + taxes varyAir France/KLM Flying Blue6

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.

Lowest prices among the dates we observed, by departure month. A record, not a forecast.
Program
Air France/KLM Flying Bluemiles25,00025,00025,00018,75040,50025,00025,00025,00025,000
TAP Air Portugal Miles&Gomiles19,00019,000—19,00019,000—39,00039,000—
American Airlines AAdvantagemiles30,00022,50022,50022,50022,50030,00030,000—30,000
Alaska Atmos Rewardspoints175,00042,500125,00042,500125,00035,00087,50087,50087,500
Delta SkyMilesmiles55,70044,60044,60037,10047,00040,60051,20055,20039,500
United MileagePlusmiles44,00044,00044,00044,00044,00044,00044,00044,00040,000
Qantas Frequent Flyerpoints64,20054,700—51,800—52,300——75,000
Air Canada Aeroplanpoints60,00060,00060,00060,00060,00060,00060,00063,93955,000
Turkish Miles & Smilesmiles55,00055,00055,00055,000—55,00075,00075,00055,000
Avianca LifeMilesmiles55,00055,000—55,00055,00055,000——55,000

Airlines seen in economy

Airlines that appeared on the award itineraries AwardTool observed, and the programs that showed them.

  • Eurowings Discover (4Y): United MileagePlus
  • American Airlines (AA): American Airlines AAdvantage and Qantas Frequent Flyer
  • Air Canada (AC): United MileagePlus and Air Canada Aeroplan
  • Air France (AF): Air France/KLM Flying Blue, Delta SkyMiles and Qantas Frequent Flyer
  • Alaska Airlines (AS): American Airlines AAdvantage, Alaska Atmos Rewards and Qantas Frequent Flyer
  • Royal Air Maroc (AT): Alaska Atmos Rewards
  • ITA Airways (AZ): United MileagePlus
  • JetBlue (B6): United MileagePlus
  • British Airways (BA): American Airlines AAdvantage and Qantas Frequent Flyer
  • Delta Air Lines (DL): Air France/KLM Flying Blue and Delta SkyMiles
  • Aer Lingus (EI): American Airlines AAdvantage, Alaska Atmos Rewards and United MileagePlus
  • Air Dolomiti (EN): United MileagePlus and Air Canada Aeroplan
  • Eurowings (EW): United MileagePlus and Air Canada Aeroplan
  • IBERIA (IB): American Airlines AAdvantage, Alaska Atmos Rewards and Qantas Frequent Flyer
  • KLM (KL): Air France/KLM Flying Blue, Delta SkyMiles and Qantas Frequent Flyer
  • Lufthansa (LH): United MileagePlus, Air Canada Aeroplan and Avianca LifeMiles
  • LOT Polish Airlines (LO): United MileagePlus
  • SWISS (LX): United MileagePlus, Air Canada Aeroplan and Avianca LifeMiles
  • Austrian (OS): United MileagePlus
  • SAS (SK): Air France/KLM Flying Blue
  • Brussels Airlines (SN): United MileagePlus and Avianca LifeMiles
  • Singapore Airlines (SQ): United MileagePlus and Avianca LifeMiles
  • Turkish Airlines (TK): United MileagePlus, Air Canada Aeroplan and Turkish Miles & Smiles
  • TAP Portugal (TP): TAP Air Portugal Miles&Go and United MileagePlus
  • United Airlines (UA): United MileagePlus, Air Canada Aeroplan and Avianca LifeMiles
  • Air Europa (UX): Air France/KLM Flying Blue
  • Lufthansa City Airlines (VL): United MileagePlus and Air Canada Aeroplan
  • Virgin Atlantic (VS): Air France/KLM Flying Blue

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 San Francisco (SFO) and to Bilbao (BIO). One way, in the program's points or miles; taxes are on each route's page.

RouteLowest observedProgramDates seen
Bilbao (BIO) to San Francisco (SFO)Return direction15,000 pointsVirgin Atlantic Flying Club11
San Francisco (SFO) to London Heathrow (LHR)Also from SFO9,500 milesNonstopGOL Smiles300
San Francisco (SFO) to Amsterdam (AMS)Also from SFO13,000 pointsVirgin Atlantic Flying Club93
San Francisco (SFO) to Paris Charles de Gaulle (CDG)Also from SFO9,500 milesGOL Smiles330
San Francisco (SFO) to Hong Kong (HKG)Also from SFO23,000 milesDelta SkyMiles328
Chicago O’Hare (ORD) to Bilbao (BIO)Also to BIO9,500 milesGOL Smiles118
Lisbon (LIS) to Bilbao (BIO)Also to BIO4,000 pointsVirgin Atlantic Flying Club9
Lanzarote (ACE) to Bilbao (BIO)Also to BIO20,400 milesNonstopGOL Smiles317

Points that transfer to these programs

Bank points to program miles or points: ratio and typical transfer time
ProgramAmexBiltCapital OneChaseCitiWells Fargo
Air Canada Aeroplan1:1 · Instant1:1 · Instant1:1 · Instant1:1 · Instant——
Air France/KLM Flying Blue1:1 · Instant1:1 · Instant1:1 · Instant1:1 · Instant1:1 · Instant1:1 · Instant
Alaska Atmos Rewards—1:1 · ~1 day————
American Airlines AAdvantage————1:1 · Instant—
Avianca LifeMiles1:1 · Instant1:1 · Instant1:1 · Instant—1:1 · Instant1:1 · Instant
Delta SkyMiles1:1 · Instant—————
Qantas Frequent Flyer1:1 · Instant—1:1 · ~1-2 days—1:1 · Instant—
TAP Air Portugal Miles&Go—1:1 · Instant1:1 · Instant———
Turkish Miles & Smiles—1:1 · Instant1:1 · Instant—1:1 · ~1 day—
United MileagePlus—1:1 · Instant—1:1 · Instant——

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

Questions about economy award flights from San Francisco (SFO) to Bilbao (BIO)

What's the lowest economy award from San Francisco (SFO) to Bilbao (BIO)?

18,750 miles + $155.70 with Air France/KLM Flying Blue. Air France/KLM Flying Blue showed economy award space on 49 departure dates at any price (newest observation Oct 16, 2026, 21:17 UTC). Search live before transferring points.

Which programs had economy award space from San Francisco (SFO) to Bilbao (BIO)?

Air France/KLM Flying Blue (49 dates), TAP Air Portugal Miles&Go (14 dates), American Airlines AAdvantage (35 dates), Alaska Atmos Rewards (29 dates), Delta SkyMiles (44 dates), United MileagePlus (53 dates), Qantas Frequent Flyer (18 dates), Air Canada Aeroplan (45 dates), Turkish Miles & Smiles (42 dates) and Avianca LifeMiles (34 dates), in the last 30 days.

Is there nonstop economy award space from San Francisco (SFO) to Bilbao (BIO)?

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

Which months had the lowest economy award prices from San Francisco (SFO) to Bilbao (BIO)?

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: 18,750 miles with Flying Blue (3 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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