Cheap flights from Washington, D.C. Reagan-National Airport to Porto from $430
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Porto departing on 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Porto
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Porto?
The cheapest day to depart on your flight to Porto is on a Sunday when prices can be found for as low as $613. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $779. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.
What is the cheapest time of day to depart on your flight to Porto?
In the afternoon is the cheapest time of day to fly from Washington, D.C. Reagan-National Airport to Porto when you can find flight prices for as low as $698. Flying to Porto in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $836 on average. Flights to Porto from Washington, D.C. Reagan-National Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
When to book flights from Washington, D.C. Reagan-National Airport to Porto
Cheap Washington, D.C. Reagan-National Airport to Porto (DCA to OPO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Porto
How far is Washington, D.C. Reagan-National to Porto by plane?
A flight from Washington, D.C. Reagan-National to Porto will travel around 3524.8 mi. By plane, this route typically takes 9h 30m.
When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Porto Airport?
Prices for flights from Washington, D.C. Reagan-National Airport to Porto Airport refresh daily.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Porto Airport?
As of June 2025, there is 1 operator available to choose from for flights from Washington, D.C. Reagan-National Airport to Porto Airport.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Porto Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Washington, D.C. Reagan-National Airport to Porto?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. Reagan-National Airport to Porto is United Airlines, representing 100% of all bookings.
Best airlines flying from Washington, D.C. Reagan-National Airport to Porto
Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Porto with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $520 | Free Cancellation | Rating 7.4 8,790 reviews |
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Why should I use momondo to find a flight deal from Washington, D.C. to Porto?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Porto. momondo saves you time and could save you money on your trip.
Can I find flights from Washington, D.C. to Porto with flexible booking policies on momondo?
All flight searches from Washington, D.C. to Porto on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Washington, D.C. to Porto?
momondo provides multiple filters to help you find the best flight to Porto from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Washington, D.C. to Porto right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Washington, D.C. to Porto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.