$346 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 8/11. 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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Cheap Flights from Reagan-National to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon3 stops$980
Porto
Porto1 stop$811
Faro
Faro2 stops$880
Funchal
Funchal3 stops$1,010
Ponta Delgada
Ponta Delgada2 stops$845
Lisbon
Lisbon3 stops$980
Porto
Porto1 stop$811
Faro
Faro2 stops$880
Funchal
Funchal3 stops$1,010
Ponta Delgada
Ponta Delgada2 stops$845

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

Sun, Aug 9 - Thu, Aug 20
Delta Logo
5:40 pm - 10:25 am
DCA
-
OPO
11h 45m
1 stop
Delta Logo
9:25 am - 10:59 pm
OPO
-
DCA
18h 34m
2 stops
$811Delta
Sun, Aug 9 - Wed, Aug 19
Delta Logo
2:45 pm - 10:25 am
DCA
-
OPO
14h 40m
2 stops
Delta Logo
5:55 am - 6:43 pm
OPO
-
DCA
17h 48m
2 stops
$815Delta
Wed, Jun 3 - Tue, Jun 16
Multiple Airlines Logo
6:00 am - 9:20 pm
DCA
-
OPO
34h 20m
3 stops
Multiple Airlines Logo
8:25 am - 12:01 pm
OPO
-
DCA
32h 36m
3 stops
$834Multiple Airlines
Wed, Jun 3 - Tue, Jun 16
Multiple Airlines Logo
6:00 am - 9:20 pm
DCA
-
OPO
34h 20m
3 stops
Multiple Airlines Logo
8:25 am - 8:53 am
OPO
-
DCA
29h 28m
2 stops
$838Multiple Airlines
Mon, Jun 15 - Mon, Jun 22
Multiple Airlines Logo
6:00 am - 9:05 am
DCA
-
PDL
23h 05m
2 stops
Multiple Airlines Logo
9:35 am - 10:18 am
PDL
-
DCA
28h 43m
2 stops
$845Multiple Airlines
Wed, Aug 5 - Wed, Aug 26
Air Canada Logo
6:00 am - 7:00 am
DCA
-
OPO
20h 00m
1 stop
Air Canada Logo
2:25 pm - 3:38 pm
OPO
-
DCA
30h 13m
1 stop
$863Air Canada
Mon, Nov 2 - Fri, Nov 6
British Airways Logo
5:45 pm - 6:05 pm
DCA
-
FAO
19h 20m
2 stops
British Airways Logo
9:50 am - 10:08 am
FAO
-
DCA
29h 18m
2 stops
$880British Airways
Mon, Aug 3 - Thu, Aug 13
United Airlines Logo
5:55 pm - 9:20 am
DCA
-
FAO
10h 25m
1 stop
United Airlines Logo
11:40 am - 7:39 pm
FAO
-
DCA
12h 59m
1 stop
$947United Airlines
Wed, Jun 10 - Tue, Jun 16
Air Canada Logo
12:45 pm - 11:05 am
DCA
-
LIS
17h 20m
2 stops
Air Canada Logo
1:00 pm - 7:58 pm
LIS
-
DCA
11h 58m
1 stop
$983Air Canada
Thu, Aug 6 - Sun, Aug 23
United Airlines Logo
8:30 am - 11:20 am
DCA
-
FAO
21h 50m
2 stops
United Airlines Logo
3:25 pm - 9:59 pm
FAO
-
DCA
35h 34m
2 stops
$1,002United 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.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to Portugal is April, when tickets cost $0 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $1,767 and $1,227 respectively.

Good to know

Low seasonNovember
Cheapest flight$406
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Reagan Washington National Airport to Faro

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 9699 reviews
8.1Crew
6.6Food
7.1Entertainment
7.7Boarding
7.3Comfort
Airline reviews

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

4.0 OkayManoj, May 2026
IAD - BRU
Read more United Airlines reviews

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

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.

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