$345 Find Cheap Flights from Reagan Washington National Airport to Portugal

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Portugal departing on 7/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Reagan-National to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon2 stops$753
Porto
Porto2 stops$802
Faro
Faro3 stops$847
Funchal
Funchal3 stops$931
Ponta Delgada
Ponta Delgada3 stops$822
Lisbon
Lisbon2 stops$753
Porto
Porto2 stops$802
Faro
Faro3 stops$847
Funchal
Funchal3 stops$931
Ponta Delgada
Ponta Delgada3 stops$822

Book Cheap Reagan-National to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to Portugal

Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
11:00 am - 8:40 pm
DCA
-
LIS
28h 40m
2 stops
Multiple Airlines Logo
7:15 am - 9:50 pm
LIS
-
DCA
19h 35m
2 stops
$753Multiple Airlines
Sat, May 16 - Thu, May 21
Multiple Airlines Logo
11:00 am - 4:00 pm
DCA
-
LIS
24h 00m
2 stops
Multiple Airlines Logo
7:00 am - 11:24 pm
LIS
-
DCA
21h 24m
2 stops
$759Multiple Airlines
Tue, Sep 1 - Tue, Sep 15
Scandinavian Airlines Logo
11:00 am - 3:35 pm
DCA
-
LIS
23h 35m
2 stops
Scandinavian Airlines Logo
12:45 pm - 11:12 pm
LIS
-
DCA
39h 27m
2 stops
$765Scandinavian Airlines
Mon, Oct 5 - Wed, Oct 14
Multiple Airlines Logo
11:00 am - 10:05 pm
DCA
-
LIS
30h 05m
2 stops
Multiple Airlines Logo
7:15 am - 11:30 pm
LIS
-
DCA
21h 15m
2 stops
$766Multiple Airlines
Mon, Apr 27 - Mon, May 11
Scandinavian Airlines Logo
11:00 am - 3:50 pm
DCA
-
LIS
23h 50m
2 stops
Scandinavian Airlines Logo
7:00 am - 11:24 pm
LIS
-
DCA
21h 24m
2 stops
$793Scandinavian Airlines
Mon, Sep 21 - Tue, Sep 29
Iberia Logo
1:38 pm - 7:40 am
DCA
-
OPO
13h 02m
2 stops
Iberia Logo
12:25 pm - 11:02 pm
OPO
-
DCA
15h 37m
2 stops
$802Iberia
Mon, Sep 21 - Tue, Sep 29
Delta Logo
5:00 pm - 10:30 am
DCA
-
OPO
12h 30m
1 stop
Delta Logo
5:00 am - 4:29 pm
OPO
-
DCA
16h 29m
2 stops
$803Delta
Mon, Sep 21 - Wed, Oct 14
United Airlines Logo
3:05 pm - 6:55 am
DCA
-
OPO
10h 50m
1 stop
United Airlines Logo
12:45 pm - 3:40 pm
OPO
-
DCA
31h 55m
1 stop
$804United Airlines
Mon, Sep 21 - Wed, Oct 14
Delta Logo
3:30 pm - 3:25 pm
DCA
-
OPO
18h 55m
2 stops
Delta Logo
5:00 am - 5:30 pm
OPO
-
DCA
17h 30m
2 stops
$808Delta
Mon, Aug 10 - Thu, Aug 27
United Airlines Logo
4:20 pm - 7:00 am
DCA
-
OPO
9h 40m
1 stop
United Airlines Logo
9:00 am - 4:57 pm
OPO
-
DCA
12h 57m
1 stop
$809United Airlines
Booking Insights

KAYAK's insights & trends for Reagan-National to Portugal flights

Get data-powered insights and trends into flights from Reagan-National to Portugal to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Washington, D.C. Reagan-National Airport and Portugal?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Reagan-National Airport to Portugal.

There is just one airline that flies from Washington, D.C. Reagan-National Airport to Portugal direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is to Lisbon (LIS) and costs $759.

Which airlines provide the cheapest flights from Washington, D.C. Reagan-National Airport to Portugal?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. Reagan-National Airport to Portugal were found on KLM ($932) and Delta ($955).

Good to know

Low seasonNovember
Cheapest flight$376
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Reagan Washington National Airport to Porto

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Reagan Washington National Airport to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Reagan Washington National Airport to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Reagan Washington National Airport to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Reagan-National to Portugal

 
Need help choosing which airline to fly with from Reagan-National to Portugal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9602 reviews
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
7.7Boarding
Airline reviews

Vegetarian selection could be better. Bread was too hard to chew.

8.0 ExcellentAnonymous, Apr 2026
IAD - FRA
Read more United Airlines reviews

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Everything you need to know for your flight from Reagan-National to Portugal

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