What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Porto round-trip?

Our cheapest airline available from Washington, D.C. Reagan-National Airport to Porto is American Airlines. Our recent data shows that you can find tickets from as low as $641 on this airline. Additional options worth looking into are United Airlines and Air Canada, starting at $677 and $681 round-trip. Users have found that American Airlines is 42% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Porto one-way?

$549 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and TAP AIR PORTUGAL, with prices starting from $554 and $589, respectively.

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Porto?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Porto (average of $523). Flying from Washington, D.C. Reagan-National Airport to Porto in June is currently the most expensive (average of $1,084). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Porto flight should consider departing on Sunday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Washington, D.C. Reagan-National Airport to Porto?

Travelers have found that booking a Saturday departure is the best way to save up to 114% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Porto?

To save on the cost of your flight from Washington, D.C. Reagan-National Airport to Porto, book at least 28 days before your planned departure. Booking around this time can save you about 31% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $702 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $825.

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

November can be a great time to fly to Porto from Washington, D.C. Reagan-National Airport with a flight ticket averaging about $678. Cheapflights users have found deals in the month of November for as cheap as $419. The most expensive prices can be found in the month of June.

Most accurate provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Porto flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Porto from Washington, D.C. Reagan-National?

If you book a flight to Porto from Washington, D.C. Reagan-National, you will be flying to Porto, which is the city’s only airport. Porto (OPO) is located 6.8 mi from the center of Porto. There are 0 flights from Washington, D.C. Reagan-National to Porto per day from 0 different airlines.

Can I find deals for flights from Reagan-National to Porto that include hotel bookings?

Yes. In addition to deals on Reagan-National to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Reagan-National to Porto?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Porto.

Can I find deals for business class flights from Reagan-National to Porto?

Yes. Cheapflights offers flight deals from Reagan-National to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$460+ Flights from Washington, D.C. Reagan-National Airport to Porto

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Cheap flight deals from Reagan-National to Porto

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$641 (American Airlines)
One-way from	$460 (Mytrip)
Popular in	January
Cheapest in	November
Average price	$596

Provider with most accurate pricing for Washington, D.C. Reagan-National-Porto flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Porto flights.

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From Washington, D.C. Reagan-National to Porto

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One-way flight from Washington, D.C. Reagan-National to Porto

Search Deals

Highest demand for flights based on searches. 23% potential increase in price ($339 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($57 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Find flight deals from Reagan-National to Porto

Cheapest flights from Reagan-National to Porto
Explore the most affordable flight options available from Reagan-National to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 28, 2025.

mar. 6/310:55 amDCA - OPO

2 stops15h 40mAmerican Airlines

mar. 6/108:15 amOPO - DCA

2 stops17h 28mAmerican Airlines

Deal found 3/27

$641

mié. 12/177:30 amDCA - OPO

2 stops26h 45mUnited Airlines

mié. 12/2412:30 pmOPO - DCA

2 stops26h 47mUnited Airlines

Deal found 3/26

$658

mié. 5/216:00 amDCA - OPO

2 stops24h 45mMultiple Airlines

mié. 5/288:25 amOPO - DCA

2 stops19h 03mMultiple Airlines

Deal found 3/27

$660

mié. 9/2412:55 pmDCA - OPO

2 stops15h 30mAir Canada

mar. 10/76:00 amOPO - DCA

2 stops20h 06mAir Canada

Deal found 3/27

$681

mar. 9/95:00 pmDCA - OPO

2 stops17h 30mDelta

mar. 9/166:30 amOPO - DCA

2 stops15h 56mDelta

Deal found 3/25

$722

mar. 6/172:54 pmDCA - OPO

2 stops36h 56mBritish Airways

vie. 7/411:15 amOPO - DCA

2 stops16h 52mBritish Airways

Deal found 3/27

$728

vie. 3/2812:37 pmDCA - OPO

2 stops15h 03mIberia

jue. 4/312:20 pmOPO - DCA

2 stops15h 45mIberia

Deal found 3/26

$745

vie. 4/1812:20 pmDCA - OPO

2 stops27h 15mAir France

mar. 4/224:20 pmOPO - DCA

2 stops35h 50mAir France

Deal found 3/26

$855

mar. 5/1312:45 pmDCA - OPO

2 stops20h 20mTAP AIR PORTUGAL

dom. 5/186:00 pmOPO - DCA

1 stop19h 00mTAP AIR PORTUGAL

Deal found 3/27

$968

Best flights from Reagan-National to Porto
Discover carefully curated flight deals from Reagan-National to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated marzo 28, 2025.

mar. 6/310:55 amDCA - OPO

2 stops15h 40mAmerican Airlines

mar. 6/108:15 amOPO - DCA

2 stops17h 28mAmerican Airlines

Deal found 3/27

$641

mié. 5/216:00 amDCA - OPO

2 stops24h 45mMultiple Airlines

mié. 5/288:25 amOPO - DCA

2 stops19h 03mMultiple Airlines

Deal found 3/27

$660

mié. 8/201:00 pmDCA - OPO

2 stops15h 25mUnited Airlines

jue. 8/2812:10 pmOPO - DCA

2 stops33h 51mUnited Airlines

Deal found 3/27

$677

mié. 9/2412:55 pmDCA - OPO

2 stops15h 30mAir Canada

mar. 10/76:00 amOPO - DCA

2 stops20h 06mAir Canada

Deal found 3/27

$681

mié. 5/75:49 pmDCA - OPO

2 stops19h 51mBritish Airways

lun. 5/129:10 pmOPO - DCA

2 stops30h 26mBritish Airways

Deal found 3/27

$723

lun. 6/234:56 pmDCA - OPO

2 stops17h 34mDelta

mié. 7/26:25 amOPO - DCA

2 stops20h 45mDelta

Deal found 3/28

$724

mar. 5/1312:45 pmDCA - OPO

2 stops20h 20mTAP AIR PORTUGAL

dom. 5/186:00 pmOPO - DCA

1 stop19h 00mTAP AIR PORTUGAL

Deal found 3/27

$968

Last-minute flights from Reagan-National to Porto
Discover last-minute flight deals from Reagan-National to Porto. Data last updated marzo 28, 2025 and is based on user searches.

vie. 3/2812:37 pmDCA - OPO

2 stops15h 03mIberia

jue. 4/312:20 pmOPO - DCA

2 stops15h 45mIberia

Deal found 3/26

$745

vie. 3/286:30 pmDCA - OPO

2 stops17h 25mTAP AIR PORTUGAL

jue. 4/36:05 pmOPO - DCA

1 stop32h 36mTAP AIR PORTUGAL

Deal found 3/26

$1,317

mié. 4/211:00 amDCA - OPO

3 stops17h 00mMultiple Airlines

dom. 4/69:50 amOPO - DCA

2 stops34h 34mMultiple Airlines

Deal found 3/25

$1,070

vie. 4/46:59 amDCA - OPO

2 stops30h 31mAir Canada

mar. 4/156:15 amOPO - DCA

2 stops33h 04mAir Canada

Deal found 3/25

$927

vie. 4/412:30 pmDCA - OPO

2 stops14h 05mAmerican Airlines

mar. 4/1512:20 pmOPO - DCA

2 stops15h 09mAmerican Airlines

Deal found 3/26

$1,025

mié. 4/92:00 pmDCA - OPO

2 stops20h 45mUnited Airlines

sáb. 9/1312:05 pmOPO - DCA

2 stops27h 16mUnited Airlines

Deal found 3/27

$919

mar. 4/155:47 pmDCA - OPO

2 stops16h 43mDelta

mar. 6/36:20 amOPO - DCA

2 stops21h 25mDelta

Deal found 3/27

$729

jue. 4/1711:40 amDCA - OPO

2 stops27h 40mBritish Airways

dom. 4/279:25 pmOPO - DCA

2 stops26h 39mBritish Airways

Deal found 3/25

$911

vie. 4/1812:20 pmDCA - OPO

2 stops27h 15mAir France

mar. 4/224:20 pmOPO - DCA

2 stops35h 50mAir France

Deal found 3/26

$855

One-way flights from Reagan-National to Porto
Search for one-way flight options from Reagan-National to Porto. Find affordable one-way fares based on user searches. Data last updated marzo 28, 2025.

mar. 4/224:10 pmDCA - OPO

2 stops20h 05mMultiple Airlines

Deal found 3/27

$460

mié. 6/44:35 pmDCA - OPO

1 stop11h 50mAir Canada

Deal found 3/27

$549

dom. 8/243:00 pmDCA - OPO

1 stop10h 55mUnited Airlines

Deal found 3/27

$554

mié. 9/2410:00 amDCA - OPO

2 stops18h 00mTAP AIR PORTUGAL

Deal found 3/27

$589

jue. 5/811:40 amDCA - OPO

2 stops27h 40mBritish Airways

Deal found 3/27

$624

vie. 5/301:15 pmDCA - OPO

2 stops13h 20mAmerican Airlines

Deal found 3/27

$666

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mar. 6/3

10:55 am-7:35 am

2 stops15h 40m

Porto

mar. 6/10

8:15 am-8:43 pm

2 stops17h 28m

$641

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mié. 5/21

6:00 am-11:45 am

2 stops24h 45m

Porto

mié. 5/28

8:25 am-10:28 pm

2 stops19h 03m

$660

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mié. 6/4

6:00 am-9:25 am

1 stop22h 25m

Porto

jue. 6/12

12:10 pm-7:39 pm

2 stops36h 29m

$694

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mié. 6/4

4:35 pm-9:25 am

1 stop11h 50m

Porto

mié. 6/11

6:00 am-9:53 pm

2 stops20h 53m

$702

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mié. 5/7

5:49 pm-6:40 pm

2 stops19h 51m

Porto

lun. 5/12

9:10 pm-10:36 pm

2 stops30h 26m

$723

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

lun. 6/23

4:56 pm-3:30 pm

2 stops17h 34m

Porto

mié. 7/2

6:25 am-10:58 pm

2 stops21h 33m

$724

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mié. 5/28

12:45 pm-10:55 am

1 stop17h 10m

Porto

mié. 6/4

6:10 pm-9:15 am

1 stop20h 05m

$958

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

dom. 4/13

12:35 pm-7:35 am

2 stops14h 00m

Porto

mié. 4/16

8:15 am-6:48 pm

2 stops15h 33m

$1,464

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

mar. 4/22

4:10 pm-5:15 pm

2 stops20h 05m

$460

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

dom. 3/30

6:59 am-6:15 pm

2 stops30h 16m

$533

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 13 results

Compare providers for flights from Reagan-National to Porto

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Porto in March.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Porto flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Reagan-National with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Porto

What is the cheapest time of day to fly from DCA to OPO?

One of the essential ways to save on airfare from Washington, D.C. Reagan-National Airport to Porto is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 40% on airfare.

Rainfall in Porto by month

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,896 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,603 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

TAP AIR PORTUGAL

7.1

Good

1,827 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

8,986 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly into for flights to Porto from Washington, D.C. Reagan-National?
If you book a flight to Porto from Washington, D.C. Reagan-National, you will be flying to Porto, which is the city’s only airport. Porto (OPO) is located 6.8 mi from the center of Porto. There are 0 flights from Washington, D.C. Reagan-National to Porto per day from 0 different airlines.
What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Porto round-trip?
Our cheapest airline available from Washington, D.C. Reagan-National Airport to Porto is American Airlines. Our recent data shows that you can find tickets from as low as $641 on this airline. Additional options worth looking into are United Airlines and Air Canada, starting at $677 and $681 round-trip. Users have found that American Airlines is 42% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Porto one-way?
$549 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and TAP AIR PORTUGAL, with prices starting from $554 and $589, respectively.
Can I find deals for flights from Reagan-National to Porto that include hotel bookings?
Yes. In addition to deals on Reagan-National to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Porto?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Porto.
Can I find deals for business class flights from Reagan-National to Porto?
Yes. Cheapflights offers flight deals from Reagan-National to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Porto?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Porto (average of $523). Flying from Washington, D.C. Reagan-National Airport to Porto in June is currently the most expensive (average of $1,084). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Other flights to Porto

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$460+ Cheap flights from Reagan-National (DCA) to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Porto with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Reagan-National to Porto

Most accurate provider

Most trusted provider

Round-trip from

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Cheapest in

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Find flight deals from Reagan-National to Porto

Cheapest flights from Reagan-National to PortoExplore the most affordable flight options available from Reagan-National to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 28, 2025.

Explore the most affordable flight options available from Reagan-National to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Porto that are best for you.

Compare providers for flights from Reagan-National to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Porto in March.

Best time to book a flight from Reagan-National to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Reagan-National with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Porto

What is the cheapest time of day to fly from DCA to OPO?

Find hourly flight availability from Reagan-National to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 28, 2025.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated marzo 28, 2025.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Porto from Washington, D.C. Reagan-National?

What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Porto round-trip?

What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Porto one-way?

Can I find deals for flights from Reagan-National to Porto that include hotel bookings?

How can I find direct flights from Reagan-National to Porto?

Can I find deals for business class flights from Reagan-National to Porto?

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Porto?

Traveling to a place near Washington, D.C. Reagan-National Airport?

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Alternative routes for Reagan-National to Porto

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Cheapest flights from Reagan-National to Porto
Explore the most affordable flight options available from Reagan-National to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 28, 2025.