Delta SkyMiles award flights from Washington National (DCA) to Porto (OPO)
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In the last 30 days AwardTool saw Delta SkyMiles award space for DCA→OPO in economy, premium economy, business class and first class. Lowest economy: 40,200 miles + $5.60 (economy space on 29 dates). Lowest first class: 408,400 miles + $5.60 (first-class space on 29 dates). Lowest premium economy: 170,500 miles + $24.10 (premium economy space on 29 dates).
Prices observed – ; newest observation .
Page regenerated from the Oct 19, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest economy
- 40,200 miles + $5.60
- economy space on 29 dates
- Lowest first class
- 408,400 miles + $5.60
- first-class space on 29 dates
- Lowest premium economy
- 170,500 miles + $24.10
- premium economy space on 29 dates
SkyMiles award prices by cabin
The lowest one-way Delta SkyMiles award AwardTool observed on DCA→OPO in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 40,200 miles + $5.60 | 1 stop | Air France (AF), Delta Air Lines (DL), KLM (KL) | 6 | 29 | See dates | |
| Premium Economy | 170,500 miles + $24.10 | 2 stops | Air France (AF), Delta Air Lines (DL), KLM (KL) | 7 | 29 | See dates | |
| Business | 442,000 miles + $5.60Mixed cabin | 1 stop | Delta Air Lines (DL) | 9+ | 1 | See dates | |
| First | 408,400 miles + $5.60 | 1 stop | Air France (AF), Delta Air Lines (DL), KLM (KL) | 8 | 29 | 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.
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 | 29 of 34 | 85% | |
| Premium Economy | 29 of 34 | 85% | |
| Business | 1 of 34 | 2% | |
| First | 29 of 34 | 85% |
Best months to fly from Washington National (DCA) to Porto (OPO) with SkyMiles
| Month | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| 57,600 (1 date) | 170,500 (1 date) | — | 499,900 (1 date) | |
| 40,200 (20 dates) | 212,900 (20 dates) | 442,000 (1 date)Mixed cabin | 408,400 (20 dates) | |
| 46,500 (2 dates) | 219,400 (2 dates) | — | 442,000 (2 dates) | |
| 40,200 (6 dates) | 213,900 (6 dates) | — | 430,500 (6 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 Washington National (DCA) to Porto (OPO)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| Air Canada Aeroplan | 36,894 pts + $51.61 | — | 323,332 pts + $79.21Mixed cabin | — |
| Air France/KLM Flying Blue | 35,000 pts + $157.40Lowest | 89,500 pts + $247.10Lowest | 141,500 pts + $359.30 | — |
| American Airlines AAdvantage | 43,000 pts + $5.60 | 133,500 pts + $5.60 | 57,500 pts + $763.50Lowest | — |
| Delta SkyMiles | 40,200 pts + $5.60 | 170,500 pts + $24.10 | 442,000 pts + $5.60Mixed cabin | 408,400 pts + $5.60Lowest |
Questions about SkyMiles award flights from Washington National (DCA) to Porto (OPO)
How many miles do you need to fly from Washington National (DCA) to Porto (OPO) with Delta SkyMiles?
The lowest one-way Delta SkyMiles awards AwardTool observed in the last 30 days (newest observation Oct 18, 2026): economy 40,200 miles + $5.60, with a typical monthly low of 40,200 miles over 4 months and award space on 29 departure dates; premium economy 170,500 miles + $24.10, with a typical monthly low of 212,900 miles over 4 months and award space on 29 departure dates; first class 408,400 miles + $5.60, with a typical monthly low of 430,500 miles over 4 months and award space on 29 departure dates. Monthly lows varied in economy (40,200 to 57,600 miles), premium economy (170,500 to 219,400 miles) and first class (408,400 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 Washington National (DCA) to Porto (OPO)?
In economy, 40,200 miles + $5.60. Delta SkyMiles showed economy award space on 29 departure dates at any price (newest observation Oct 18, 2026, 16:02 UTC). In first class, 408,400 miles + $5.60. Delta SkyMiles showed first-class award space on 29 departure dates at any price (newest observation Oct 18, 2026, 16:02 UTC). Search live before transferring points.
Can you book nonstop awards from Washington National (DCA) to Porto (OPO) 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 Washington National (DCA) to Porto (OPO)?
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 Washington National (DCA) to Porto (OPO)?
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 Jun 2027 departures: 40,200 miles (20 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.