Business-class award flights from Bilbao (BIO) to Seattle (SEA)
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In the last 30 days AwardTool saw business-class award space on 2 programs for BIO→SEA. Lowest: 178,500 miles + $441.49 with Air France/KLM Flying Blue, which showed business-class award space on 16 dates. A mixed-cabin itinerary, with part of the trip in a lower cabin, was seen from 88,000 miles + $67.59 with United MileagePlus.
Prices observed – ; newest observation .
Page regenerated from the Oct 19, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest observed
- 178,500 miles + $441.49
- Air France/KLM Flying Blue
- Programs with space
- 2 of 2
- programs seen on this route
- Most dates seen
- 16 of 18
- dates checked · Air France/KLM Flying Blue
- Nonstop
- Not seen
- in the last 30 days
Compare programs for business class
The lowest one-way business-class award each program showed on BIO→SEA, sorted by points.
| Program | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| United MileagePlusLowest, mixed cabin | 88,000 pts + $67.59Mixed cabin | 2 stops | Eurowings (EW), Lufthansa (LH), United Airlines (UA) | 1 | 8 | See dates | |
| Air France/KLM Flying Blue | 178,500 pts + $441.49 | 1 stop | Air France (AF), Delta Air Lines (DL), KLM (KL), Air Europa (UX) | 4 | 16 | 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 business-class award examples
| Departure | Program | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|
| United MileagePlus | 88,000 pts + $67.59Mixed cabin | 1 | 2 stops | Check this date | ||
| Air France/KLM Flying Blue | 178,500 pts + $441.49 | 4 | 1 stop | Check this date | ||
| Air France/KLM Flying Blue | 186,000 pts + $458.53 | 2 | 2 stops | Check this date | ||
| United MileagePlus | 200,000 pts + $68.13 | 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 business-class 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 business-class award space at any price, and the latest departure with space.
| Program | Dates with space | Share of dates checked | Latest departure with space |
|---|---|---|---|
| United MileagePlus | 8 of 17 | 47% | |
| Air France/KLM Flying Blue | 16 of 18 | 88% |
Best months for business class from Bilbao (BIO) to Seattle (SEA)
| Month | Lowest observed | Program | Dates |
|---|---|---|---|
| 88,000 pts + taxes varyMixed cabin | United MileagePlus | 3 | |
| 178,500 pts + taxes vary | Air France/KLM Flying Blue | 5 | |
| 88,000 pts + taxes varyMixed cabin | United MileagePlus | 2 |
Lowest business class award by month and program
Each program's lowest one-way business-class award by departure month, in its own points or miles; taxes vary. — means the program showed no business-class space that month.
| Program | |||
|---|---|---|---|
| United MileagePlusmiles | 88,000Mixed cabin | 200,000 | 88,000Mixed cabin |
| Air France/KLM Flying Bluemiles | 435,000 | 178,500 | 178,500 |
Airlines seen in business class
Airlines that appeared on the award itineraries AwardTool observed, and the programs that showed them.
- Air France (AF): Air France/KLM Flying Blue
- Delta Air Lines (DL): Air France/KLM Flying Blue
- Eurowings (EW): United MileagePlus
- KLM (KL): Air France/KLM Flying Blue
- Lufthansa (LH): United MileagePlus
- United Airlines (UA): United MileagePlus
- Air Europa (UX): Air France/KLM Flying Blue
Business class on nearby routes
The lowest business-class 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 Bilbao (BIO) and to Seattle (SEA). One way, in the program's points or miles; taxes are on each route's page.
| Route | Lowest observed | Program | Dates seen |
|---|---|---|---|
| Seattle (SEA) to Bilbao (BIO)Return direction | 90,000 points | Air Canada Aeroplan | 8 |
| Bilbao (BIO) to Lisbon (LIS)Also from BIO | 8,000 points | Virgin Atlantic Flying Club | 13 |
| Bilbao (BIO) to London Heathrow (LHR)Also from BIO | 20,000 miles | Avianca LifeMiles | 4 |
| Bilbao (BIO) to Lanzarote (ACE)Also from BIO | 199,400 miles | GOL Smiles | 219 |
| Bilbao (BIO) to San Francisco (SFO)Also from BIO | 57,500 miles | American Airlines AAdvantage | 6 |
| London Heathrow (LHR) to Seattle (SEA)Also to SEA | 41,845 miles | Lufthansa Miles & More | 199 |
| Paris Charles de Gaulle (CDG) to Seattle (SEA)Also to SEA | 55,000 points | Alaska Atmos Rewards | 305 |
| Amsterdam (AMS) to Seattle (SEA)Also to SEA | 55,000 points | Alaska Atmos Rewards | 322 |
Points that transfer to these programs
| Program | Amex | Bilt | Capital One | Chase | Citi | Wells Fargo |
|---|---|---|---|---|---|---|
| Air France/KLM Flying Blue | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant |
| United MileagePlus | — | 1:1 · Instant | — | 1:1 · Instant | — | — |
Check current transfer bonuses. Most transfers can't be reversed.
Questions about business-class award flights from Bilbao (BIO) to Seattle (SEA)
What's the lowest business-class award from Bilbao (BIO) to Seattle (SEA)?
178,500 miles + $441.49 with Air France/KLM Flying Blue. Seen Oct 1, 2026, 19:13 UTC for a Nov 5, 2026 departure. Air France/KLM Flying Blue showed business-class award space on 16 departure dates at any price (newest observation Oct 7, 2026, 23:22 UTC). A mixed-cabin itinerary, with part of the trip in a lower cabin, was seen from 88,000 miles + $67.59 with United MileagePlus. Search live before transferring points.
Which programs had business-class award space from Bilbao (BIO) to Seattle (SEA)?
United MileagePlus (8 dates) and Air France/KLM Flying Blue (16 dates), in the last 30 days.
Is there nonstop business-class award space from Bilbao (BIO) to Seattle (SEA)?
AwardTool hasn't observed nonstop business-class award space on this route in the last 30 days. That doesn't mean nonstop space never appears.
Which months had the lowest business-class award prices from Bilbao (BIO) to Seattle (SEA)?
Counting only month prices from programs with award space on 2 or more dates that month, and leaving out unusually low outliers, the lowest business-class award AwardTool observed was for Nov 2026 departures: 178,500 miles with Flying Blue (5 dates). A mixed-cabin itinerary was seen for Oct 2026 departures from 88,000 miles with MileagePlus. The month table shows every lowest price, including those. Based on dates we observed, not a forecast.