Washington to Porto flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Washington to Porto is €338 (checked on 29 Oct 2026).
Your next trip, last seen at €338
When to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €338, departing 22 Nov 2026 (Last checked: 29 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Aer Lingus, Air Europa, Brussels Airlines, Iberia, JetBlue, Lufthansa, Ryanair, Swiss, TAP Air Portugal, United Airlines (10)
- Typical journey time
- 20h 30m
About this route
Explore the fares we observed from Washington to Porto. Prices move often, so pick your dates to see the latest options.
- Route distance
- 5,675 km
- Typical journey time
- 20h 30m
- Seen on fares with a connection
- Aer Lingus, Iberia, United Airlines, JetBlue, Ryanair, Lufthansa, TAP Air Portugal (7)
- Alternative airports
- DCA
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- Ronald Reagan Washington National Airport (DCA) → Washington, city gazetteer reference point (38.8951, -77.0364): ≈ 5 km.
- Washington Dulles International Airport (IAD) → Washington, city gazetteer reference point (38.8951, -77.0364): ≈ 37 km.
- Porto Airport (OPO) → Porto, city gazetteer reference point (41.1579, -8.6291): ≈ 11 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Frequently asked
How much is a flight from Washington to Porto?
The lowest fare Routavio has observed is €338, found on 29 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Washington to Porto?
In our observations November 2026 is the cheapest month so far, at €338.
Are there direct flights from Washington to Porto?
Our data holds no non-stop flight from Washington to Porto. The fares on this page include at least one stop.
Which airlines fly from Washington to Porto?
Routavio has seen these carriers on the route: Aer Lingus, Air Europa, Brussels Airlines, Iberia, JetBlue, Lufthansa, Ryanair, Swiss, TAP Air Portugal, United Airlines (10).
How long does the flight from Washington to Porto take?
Across the 66 fares Routavio observed, the average journey time is 21h 16m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Washington to Porto fares were non-stop?
None of the 68 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.