Cheap flights from Washington, D.C. Reagan-National Airport to Portugal from $374
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 Portugal departing on 4/13. 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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0 bags
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One-way
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Cheap round-trip flights
These are some of the best round-trip flight deals from Washington, D.C. Reagan-National Airport to Portugal that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Washington, D.C. Reagan-National Airport to Portugal.
Cheap last minute flights
Planning a quick getaway from Washington, D.C. Reagan-National Airport to Portugal? These are the last-minute flight deals available now.
British Airways flights from Washington, D.C. Reagan-National Airport to Portugal
Our best British Airways deals on Washington, D.C. Reagan-National Airport to Portugal flight tickets
British Airways![British Airways]()
May 13![British Airways]()
May 19
DCA5:49 pmWashington, D.C. Reagan-National
20h 41m
2 stops
OPO7:30 pmPorto
OPO12:20 pmPorto
15h 16m
2 stops
DCA10:36 pmWashington, D.C. Reagan-National
British Airways![British Airways]()
May 10![British Airways]()
May 17
DCA3:54 pmWashington, D.C. Reagan-National
21h 11m
2 stops
LIS6:05 pmLisbon Humberto Delgado
LIS7:10 amLisbon Humberto Delgado
17h 50m
2 stops
DCA8:00 pmWashington, D.C. Reagan-National
United Airlines flights from Washington, D.C. Reagan-National Airport to Portugal
Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Portugal flight tickets
United Airlines![United Airlines]()
Jun 18![United Airlines]()
Jun 24
DCA4:30 pmWashington, D.C. Reagan-National
12h 00m
1 stop
OPO9:30 amPorto
OPO12:15 pmPorto
30h 58m
2 stops
DCA2:13 pmWashington, D.C. Reagan-National
United Airlines![United Airlines]()
Jun 18![United Airlines]()
Jun 24
DCA7:00 amWashington, D.C. Reagan-National
21h 30m
2 stops
OPO9:30 amPorto
OPO12:15 pmPorto
30h 58m
2 stops
DCA2:13 pmWashington, D.C. Reagan-National
See travel insights to Portugal from
How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Portugal
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
Prices
Airlines
What is the cheapest month to fly to Portugal?
The cheapest month to fly to Portugal from Washington, D.C. Reagan-National Airport is in January. Flight prices, which tend to average around $700, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Washington, D.C. Reagan-National Airport during November instead. Flights to Portugal in November, while not as cheap as those in January, still average around $761.
What is the cheapest day to depart on your flight to Portugal?
According to our data, Monday is the cheapest day to fly to Portugal from Washington, D.C. Reagan-National Airport. The lowest ticket price found for a Monday departure recently was $881. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $1,225.
What is the cheapest time of day to depart on your flight to Portugal?
Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from Washington, D.C. Reagan-National Airport to Portugal during this time can be as low as $1,008. At noon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,302 per ticket.
How far in advance should I book a flight to Portugal?
You are more likely to see cheaper flights to Portugal from Washington, D.C. Reagan-National Airport when booking 22 weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $935 when searching 22 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Washington, D.C. Reagan-National Airport for as low as $809 on momondo.
What is the cheapest airline that flies from Washington, D.C. Reagan-National to Portugal?
Iberia, Air Canada, and KLM are the most popular carriers operating from Washington, D.C. Reagan-National to Portugal
What airlines fly to Portugal?
TAP AIR PORTUGAL, Delta and United Airlines are the top three most popular airlines that fly to Portugal from Washington, D.C. Reagan-National Airport according to our data. TAP AIR PORTUGAL is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 7 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.
Cheap Washington, D.C. Reagan-National Airport to Portugal flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Portugal
When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Portugal?
Prices for flights from Washington, D.C. Reagan-National Airport to Portugal are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Portugal?
As of March 2025, there are 7 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to Portugal.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Portugal?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Reagan-National Airport to Portugal.
What documentation or ID do you need to fly to Portugal?
The required travel and health documents for your Portugal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Washington, D.C. Reagan-National Airport to Portugal
Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Portugal with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $512 | Free Cancellation | Rating 8.0 8,024 reviews | |||
| PriceFrom $562 | Free Cancellation | Rating 6.6 6,733 reviews | |||
| PriceFrom $567 | Free Cancellation | Rating 7.4 8,649 reviews | |||
| PriceFrom $592 | Free Cancellation | Rating 7.1 1,827 reviews | |||
| PriceFrom $619 | Free Cancellation | Rating 7.8 1,322 reviews | |||
| PriceFrom $851 | Free Cancellation | Rating 7.0 8,854 reviews | |||
| PriceFrom $968 | Free Cancellation | Rating 6.7 6,957 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to Portugal?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Portugal. momondo saves you time and could save you money on your trip.
Can I find flights from Washington, D.C. to Portugal with flexible booking policies on momondo?
All flight searches from Washington, D.C. to Portugal 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 Portugal?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Portugal.
I’m not ready to book a flight from Washington, D.C. to Portugal right now. Can momondo alert me if prices change?
Price alerts on flights to Portugal from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.
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