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$292+ Cheap flights from Raleigh (RDU) 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — OPO
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
1 adult, Economy
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Cheap flight deals from Raleigh to Porto

Cheapest flights from Raleigh to Porto
Explore the most affordable flight options available from Raleigh to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.

This American Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:01 am
RDU
-
OPO
2 stops15h 39m
American Airlines
Thu 5/78:20 am
OPO
-
RDU
2 stops15h 44m
American Airlines
Deal found 2/10$500
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:59 pm
RDU
-
OPO
2 stops16h 26m
Delta
Tue 3/315:00 am
OPO
-
RDU
2 stops32h 06m
Delta
Deal found 2/10$531
This Trip.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:15 pm
RDU
-
OPO
1 stop14h 25m
Lufthansa
Tue 3/3112:05 pm
OPO
-
RDU
1 stop30h 40m
Lufthansa
Deal found 2/10$557
This Trip.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:40 pm
RDU
-
OPO
1 stop18h 10m
Multiple Airlines
Thu 5/77:55 pm
OPO
-
RDU
1 stop25h 50m
Multiple Airlines
Deal found 2/13$566
This Priceline deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:49 pm
RDU
-
OPO
2 stops26h 01m
British Airways
Thu 5/77:55 pm
OPO
-
RDU
1 stop25h 50m
British Airways
Deal found 2/13$570
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:59 pm
RDU
-
OPO
2 stops35h 31m
Delta
Mon 3/305:00 am
OPO
-
RDU
2 stops34h 38m
Delta
Deal found 2/13$572
This American Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:01 am
RDU
-
OPO
2 stops15h 39m
American Airlines
Wed 4/298:20 am
OPO
-
RDU
2 stops20h 39m
American Airlines
Deal found 2/11$581
This United Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:15 am
RDU
-
OPO
2 stops23h 15m
United Airlines
Tue 3/3112:05 pm
OPO
-
RDU
1 stop30h 40m
United Airlines
Deal found 2/10$584
This Travelocity deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/61:13 pm
RDU
-
OPO
2 stops13h 27m
Iberia
Tue 4/148:20 am
OPO
-
RDU
2 stops15h 44m
Iberia
Deal found 2/12$586
This Travelocity deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:40 pm
RDU
-
OPO
1 stop18h 10m
British Airways
Tue 4/148:20 am
OPO
-
RDU
2 stops15h 44m
British Airways
Deal found 2/12$588
This United Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:10 am
RDU
-
OPO
1 stop16h 50m
United Airlines
Tue 10/612:15 pm
OPO
-
RDU
2 stops35h 43m
United Airlines
Deal found 2/11$598

Find flight deals from Raleigh to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$500
(American Airlines)

One-way from

$292
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$705
Provider with most accurate pricing for Raleigh-Durham-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Raleigh-Durham-Porto flights.
Search Deals
From Raleigh-Durham to Porto
Search Deals
One-way flight from Raleigh-Durham to Porto
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($169 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Raleigh to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 14, 2026.
Use the filters below to find and compare flights from Raleigh to Porto that are best for you.

Fly from

Raleigh

Fly to

Porto

Route

Depart

Return

Price

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Mon 4/27

11:01 am-7:40 am

2 stops15h 39m

Porto

Thu 5/7

8:20 am-7:04 pm

2 stops15h 44m

$501

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Mon 3/16

6:59 pm-3:25 pm

2 stops16h 26m

Porto

Tue 3/31

5:00 am-8:06 am

2 stops32h 06m

$531

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Mon 3/16

5:15 pm-11:40 am

1 stop14h 25m

Porto

Tue 3/31

12:05 pm-1:45 pm

1 stop30h 40m

$557

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Mon 3/16

6:59 pm-10:30 am

2 stops35h 31m

Porto

Mon 3/30

5:00 am-10:38 am

2 stops34h 38m

$572

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Mon 3/16

6:15 am-9:30 am

2 stops23h 15m

Porto

Tue 3/31

12:05 pm-1:45 pm

1 stop30h 40m

$584

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Mon 3/16

9:35 pm-5:35 pm

1 stop16h 00m

Porto

Mon 3/30

9:10 pm-4:50 pm

1 stop24h 40m

$606

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Mon 4/27

3:40 pm-11:15 am

1 stop14h 35m

Porto

Thu 5/7

6:00 am-4:03 pm

2 stops39h 03m

$659

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Wed 3/11

1:25 pm-3:25 pm

2 stops22h 00m

Porto

Wed 3/25

6:00 am-9:34 am

2 stops31h 34m

$674

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Wed 2/25

6:47 pm-9:30 am

1 stop9h 43m

Porto

Sun 3/1

12:30 pm-1:45 pm

1 stop30h 15m

$679

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Sat 2/28

1:26 pm-9:30 am

2 stops15h 04m

Porto

Thu 3/12

12:35 pm-11:44 pm

2 stops15h 09m

$682

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 19 results
1
2

Compare providers for flights from Raleigh 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 Raleigh to Porto in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust 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 Raleigh-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Raleigh-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Raleigh-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Raleigh-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 Raleigh-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 Raleigh to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Raleigh 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 Raleigh to Porto

What is the cheapest month to book a flight from Raleigh to Porto?

Currently, January is the cheapest month in which you can book a flight from Raleigh to Porto (average of $492). Flying from Raleigh to Porto in July is currently the most expensive (average of $818). 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.

How much does it cost to fly round-trip from Raleigh to Porto?

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 February 14, 2026.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Raleigh to Porto to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,200 reviews

Comfort

7.9

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,200 reviews
Delta
7.9
Good
8,200 reviews

Comfort

7.9

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,291 reviews
Delta
7.9
Good
8,200 reviews

Comfort

7.9

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,288 reviews
Delta
7.9
Good
8,200 reviews

Comfort

7.9

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,717 reviews
Delta
7.9
Good
8,200 reviews

Comfort

7.9

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,784 reviews
Delta
7.9
Good
8,200 reviews

Comfort

7.9

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • How long is the flight from Raleigh to Porto?

    American Airlines, Iberia, and Delta can get you from Raleigh to Porto in just under 15h 39m. Your travel time can differ by up to 47m. There are 3699 mi between Raleigh and Porto. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Raleigh to Porto round-trip?

    American Airlines, at $558, was found to be the cheapest airline from Raleigh to Porto.Alternate airlines to your destination round-trip include Delta and Lufthansa. These flights start at 37% lower than the current average price 3 months from now.

  • Can I find deals for flights from Raleigh to Porto that include hotel bookings?

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

  • How can I find direct flights from Raleigh to Porto?

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

  • Can I find deals for business class flights from Raleigh to Porto?

    Yes. Cheapflights offers flight deals from Raleigh 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 Raleigh to Porto?

    Currently, January is the cheapest month in which you can book a flight from Raleigh to Porto (average of $492). Flying from Raleigh to Porto in July is currently the most expensive (average of $818). 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

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra

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Top 6 airlines flying from Raleigh to Porto

Discover the top 6 airlines that operate flights from Raleigh to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$558Average$810FlexibilityNo cancel feeOn-time71%
DeltaCheapest$572Average$760FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$633Average$820FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$638Average$1,294FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$700Average$1,085FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$887Average$1,360FlexibilityNo cancel feeOn-timeN/A

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