HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto

$465+ Cheap flights from Raleigh (RDU) to Porto (OPO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — OPO
Dec 14 — Dec 211
Sun 12/14
Sun 12/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Raleigh to Porto with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 November 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$458
(Mytrip)

Popular in

May

Cheapest in

February

Average price

$762
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
Highest demand for flights based on searches. 17% potential increase in price ($216 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 November 14, 2025.

This Rumbo deal was found by Cheapflights users on 11/13. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:53 amRDU - OPO
2 stops42h 02mTurkish Airlines
Wed 12/34:10 pmOPO - RDU
2 stops34h 41mTurkish Airlines
Deal found 11/13$943
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:00 amRDU - OPO
2 stops22h 55mMultiple Airlines
Wed 12/36:35 pmOPO - RDU
1 stop28h 38mMultiple Airlines
Deal found 11/13$961
This American Airlines deal was found by Cheapflights users on 11/14. 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 12/110:29 amRDU - OPO
2 stops16h 11mAmerican Airlines
Wed 12/38:20 amOPO - RDU
2 stops17h 00mAmerican Airlines
Deal found 11/14$968
This Gotogate deal was found by Cheapflights users on 11/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:40 pmRDU - OPO
1 stop15h 55mBritish Airways
Wed 12/36:35 pmOPO - RDU
1 stop28h 10mBritish Airways
Deal found 11/14$1,009
This United Airlines deal was found by Cheapflights users on 11/14. 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 12/19:30 amRDU - OPO
2 stops21h 10mUnited Airlines
Wed 12/312:30 pmOPO - RDU
3 stops30h 37mUnited Airlines
Deal found 11/14$1,187
This Gurufare deal was found by Cheapflights users on 11/12. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/163:10 pmRDU - OPO
2 stops21h 50mMultiple Airlines
Tue 12/3011:05 amOPO - RDU
2 stops36h 07mMultiple Airlines
Deal found 11/12$1,339
This Ovago deal was found by Cheapflights users on 11/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/163:10 pmRDU - OPO
2 stops14h 50mLufthansa
Tue 12/301:45 pmOPO - RDU
2 stops38h 59mLufthansa
Deal found 11/13$1,385
This Mytrip deal was found by Cheapflights users on 11/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/11:25 pmRDU - OPO
3 stops23h 50mMultiple Airlines
Wed 12/32:00 pmOPO - RDU
3 stops31h 55mMultiple Airlines
Deal found 11/14$1,419
This Mytrip deal was found by Cheapflights users on 11/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:35 pmRDU - OPO
2 stops16h 45mMultiple Airlines
Sun 1/411:35 amOPO - RDU
3 stops34h 20mMultiple Airlines
Deal found 11/13$1,632

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 November 14, 2025.
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

Wed 2/11

9:30 am-1:15 pm

2 stops22h 45m

Porto

Sat 2/21

6:00 am-9:33 pm

2 stops20h 33m

$465

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Sat 2/7

1:29 pm-6:35 pm

2 stops24h 06m

Porto

Sat 2/21

8:40 am-9:24 pm

2 stops17h 44m

$490

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Sat 2/7

1:00 pm-10:30 am

2 stops16h 30m

Porto

Sat 2/21

11:25 am-4:45 pm

1 stop34h 20m

$501

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Wed 2/11

3:02 pm-3:25 pm

2 stops19h 23m

Porto

Sat 2/21

6:00 am-2:03 pm

3 stops37h 03m

$504

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Sat 2/7

7:30 am-3:05 pm

3 stops26h 35m

Porto

Sat 2/21

6:00 am-11:44 pm

2 stops22h 44m

$504

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Sat 2/7

12:27 pm-7:40 am

2 stops14h 13m

Porto

Sat 2/21

8:40 pm-10:42 am

2 stops19h 02m

$510

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Thu 2/26

10:00 am-9:30 am

2 stops18h 30m

Porto

Wed 3/11

6:00 am-6:11 pm

2 stops16h 11m

$539

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Fri 2/27

10:00 am-9:30 am

2 stops18h 30m

Porto

Tue 3/17

6:00 am-9:58 pm

2 stops19h 58m

$539

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Tue 2/17

1:14 pm-10:30 am

2 stops16h 16m

Porto

Tue 3/3

6:05 am-7:49 pm

2 stops18h 44m

$542

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice 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 Expedia the most. Expedia 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

How far ahead should I book a flight from Raleigh to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Porto. Price data was last updated on November 7, 2025.

To ensure you get the cheapest price possible for a flight from Raleigh to Porto, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Raleigh to Porto (average of $573). Flying from Raleigh to Porto in June is currently the most expensive (average of $987). 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 time of day to fly from RDU to OPO?

Find hourly flight availability from Raleigh 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 November 14, 2025.

When flying from Raleigh to Porto, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 23% versus a flight in the afternoon.

What is the cheapest day to fly from Raleigh to Porto?

Use this chart to determine the cheapest time to fly round-trip from Raleigh to Porto. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Raleigh to Porto flight should consider departing on Sunday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 14, 2025.
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
8,011 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

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
8,011 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

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
9,017 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

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
11,048 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

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.
TAP AIR PORTUGAL
7.1
Good
2,059 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

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
7,572 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

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?

    SWISS, KLM, and United Airlines can get you from Raleigh to Porto in just under 16h 30m. Your travel time can differ by up to 7h 36m. 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 Lufthansa and Air Canada. These flights start at 46% 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, February is the cheapest month in which you can book a flight from Raleigh to Porto (average of $573). Flying from Raleigh to Porto in June is currently the most expensive (average of $987). 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
Aveiro
Arcos de Valdevez
Coimbra
Vila Nova de Gaia

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 November 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$558Average$887FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$633Average$1,192FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$638Average$1,294FlexibilityNo cancel feeOn-time67%
DeltaCheapest$650Average$792FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$741Average$1,269FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$887Average$1,360FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.