Business-class award flights from Porto (OPO) to Houston (IAH)
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In the last 30 days AwardTool saw business-class award space on 5 programs for OPO→IAH. Lowest: 57,500 miles + $966.53 with American Airlines AAdvantage, which showed business-class award space on 17 dates. No nonstop business-class 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
- 57,500 miles + $966.53
- American Airlines AAdvantage
- Programs with space
- 5 of 11
- programs seen on this route
- Most dates seen
- 27 of 27
- dates checked · United MileagePlus
- Nonstop
- Not seen
- in the last 30 days
Compare programs for business class
The lowest one-way business-class award each program showed on OPO→IAH, sorted by points.
| Program | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Lufthansa Miles & MoreLowest observed | 45,280 pts + $951.13 | 1 stop | Lufthansa (LH) | 9+ | 1 | See dates | |
| American Airlines AAdvantage | 57,500 pts + $966.53 | 1 stop | American Airlines (AA), Alaska Airlines (AS), British Airways (BA) | — | 17 | See dates | |
| Air France/KLM Flying Blue | 86,000 pts + $442.49 | 1 stop | Air France (AF), Delta Air Lines (DL), KLM (KL), Air Europa (UX) | 9+ | 22 | See dates | |
| United MileagePlus | 88,000 pts + $58.93Mixed cabin | 2 stops | Eurowings Discover (4Y), Air Canada (AC), Eurowings (EW), Lufthansa (LH) +4 more | 4 | 27 | See dates | |
| Turkish Miles & Smiles | 175,000 pts + taxes not reported | 1 stop | Turkish Airlines (TK) | 2 | 23 | See dates |
Not seen in business class: Air Canada Aeroplan, Avianca LifeMiles, Delta SkyMiles, GOL Smiles, Qantas Frequent Flyer and Virgin Atlantic Flying Club.
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) | |
|---|---|---|---|---|---|---|
| Lufthansa Miles & More | 45,280 pts + $951.13 | 9+ | 1 stop | Check this date | ||
| American Airlines AAdvantage | 57,500 pts + $1,028.73 | — | 2 stops | Check this date | ||
| Air France/KLM Flying Blue | 86,000 pts + $442.49 | 9+ | 1 stop | Check this date | ||
| Turkish Miles & Smiles | 175,000 pts + taxes not reported | 2 | 1 stop | Check this date | ||
| United MileagePlus | 200,000 pts + $62.79 | 7 | 2 stops | Check this date | ||
| Air France/KLM Flying Blue | 390,500 pts + $442.39 | 2 | 1 stop | Check this date | ||
| United MileagePlus | 395,000 pts + $57.19 | 1 | 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 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 |
|---|---|---|---|
| Lufthansa Miles & More | 1 of 9 | 11% | |
| American Airlines AAdvantage | 17 of 32 | 53% | |
| Air France/KLM Flying Blue | 22 of 22 | 100% | |
| United MileagePlus | 27 of 27 | 100% | |
| Turkish Miles & Smiles | 23 of 23 | 100% |
Best months for business class from Porto (OPO) to Houston (IAH)
| Month | Lowest observed | Program | Dates |
|---|---|---|---|
| 45,280 pts + taxes vary | Lufthansa Miles & More | 1 | |
| 395,000 pts + taxes vary | United MileagePlus | 1 | |
| 57,500 pts + taxes vary | American Airlines AAdvantage | 1 | |
| 57,500 pts + taxes vary | American Airlines AAdvantage | 2 | |
| 57,500 pts + taxes vary | American Airlines AAdvantage | 2 | |
| 144,000 pts + taxes vary | Air France/KLM Flying Blue | 3 | |
| 57,500 pts + taxes vary | American Airlines AAdvantage | 11 |
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 | |||||||
|---|---|---|---|---|---|---|---|
| Lufthansa Miles & Moremiles | 45,280 | — | — | — | — | — | — |
| American Airlines AAdvantagemiles | — | — | 57,500 | 57,500 | 57,500 | 450,000 | 57,500 |
| Air France/KLM Flying Bluemiles | 390,500 | — | 86,000 | — | 86,000 | 144,000 | 143,500 |
| United MileagePlusmiles | 395,000 | 395,000 | 200,000 | 295,000 | 88,000Mixed cabin | 200,000 | 88,000Mixed cabin |
| Turkish Miles & Smilesmiles | 175,000 | — | — | — | 175,000 | 175,000 | 175,000 |
Airlines seen in business class
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
- Air Canada (AC): United MileagePlus
- Air France (AF): Air France/KLM Flying Blue
- Alaska Airlines (AS): American Airlines AAdvantage
- British Airways (BA): American Airlines AAdvantage
- Delta Air Lines (DL): Air France/KLM Flying Blue
- Eurowings (EW): United MileagePlus
- KLM (KL): Air France/KLM Flying Blue
- Lufthansa (LH): Lufthansa Miles & More and United MileagePlus
- SWISS (LX): United MileagePlus
- Turkish Airlines (TK): Turkish Miles & Smiles
- TAP Portugal (TP): United MileagePlus
- United Airlines (UA): United MileagePlus
- Air Europa (UX): Air France/KLM Flying Blue
- Lufthansa City Airlines (VL): United MileagePlus
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 Porto (OPO) and to Houston (IAH). One way, in the program's points or miles; taxes are on each route's page.
| Route | Lowest observed | Program | Dates seen |
|---|---|---|---|
| Houston (IAH) to Porto (OPO)Return direction | 57,500 miles | American Airlines AAdvantage | 18 |
| Porto (OPO) to Amsterdam (AMS)Also from OPO | 20,000 milesNonstop | Air France/KLM Flying Blue | 309 |
| Porto (OPO) to São Paulo Guarulhos (GRU)Also from OPO | 85,000 miles | Air France/KLM Flying Blue | 91 |
| Porto (OPO) to Newark (EWR)Also from OPO | 34,536 miles | Lufthansa Miles & More | 44 |
| Porto (OPO) to Paris Charles de Gaulle (CDG)Also from OPO | 25,000 milesNonstop | Delta SkyMiles | 272 |
| London Heathrow (LHR) to Houston (IAH)Also to IAH | 47,390 miles | Lufthansa Miles & More | 140 |
| Paris Charles de Gaulle (CDG) to Houston (IAH)Also to IAH | 55,000 points | Alaska Atmos Rewards | 166 |
| Amsterdam (AMS) to Houston (IAH)Also to IAH | 55,000 points | Alaska Atmos Rewards | 214 |
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 |
| American Airlines AAdvantage | — | — | — | — | 1:1 · Instant | — |
| Turkish Miles & Smiles | — | 1:1 · Instant | 1:1 · Instant | — | 1:1 · ~1 day | — |
| United MileagePlus | — | 1:1 · Instant | — | 1:1 · Instant | — | — |
Check current transfer bonuses. Most transfers can't be reversed. No bank transfers to Lufthansa Miles & More.
Questions about business-class award flights from Porto (OPO) to Houston (IAH)
What's the lowest business-class award from Porto (OPO) to Houston (IAH)?
57,500 miles + $966.53 with American Airlines AAdvantage. Seen Sep 28, 2026, 20:38 UTC for a Dec 14, 2026 departure. American Airlines AAdvantage showed business-class award space on 17 departure dates at any price (newest observation Oct 19, 2026, 01:06 UTC). Search live before transferring points.
Which programs had business-class award space from Porto (OPO) to Houston (IAH)?
Lufthansa Miles & More (1 date), American Airlines AAdvantage (17 dates), Air France/KLM Flying Blue (22 dates), United MileagePlus (27 dates) and Turkish Miles & Smiles (23 dates), in the last 30 days.
Is there nonstop business-class award space from Porto (OPO) to Houston (IAH)?
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 Porto (OPO) to Houston (IAH)?
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 May 2027 departures: 57,500 miles with AAdvantage (11 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.