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$285+ Cheap flights from North Carolina 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — OPO
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from North Carolina to Porto

Keep the following information in mind while searching for North Carolina to Porto flight deals. Data was last updated September 16, 2025.

Round-trip from

$532
(United Airlines)

One-way from

$285
(Kiwi.com)

Popular in

May

Cheapest in

January

Average price

$1,068
From North Carolina to Porto
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One-way flight from North Carolina to Porto
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Highest demand for flights based on searches. 20% potential increase in price ($260 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from North Carolina to Porto

Cheapest flights from North Carolina to Porto
Explore the most affordable flight options available from North Carolina to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/206:00 amRDU - OPO
2 stops22h 45mUnited Airlines
Tue 11/46:00 amOPO - RDU
2 stops20h 47mUnited Airlines
Deal found 9/13$532
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/206:31 pmCLT - OPO
1 stop10h 14mUnited Airlines
Wed 11/512:35 pmOPO - CLT
1 stop14h 24mUnited Airlines
Deal found 9/16$535
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/205:52 pmRDU - OPO
1 stop10h 53mUnited Airlines
Wed 11/512:35 pmOPO - RDU
1 stop28h 48mUnited Airlines
Deal found 9/16$535
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:20 pmCLT - OPO
1 stop10h 10mUnited Airlines
Fri 1/166:00 amOPO - CLT
2 stops39h 17mUnited Airlines
Deal found 9/13$536
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/410:43 amCLT - OPO
2 stops17h 47mUnited Airlines
Thu 1/156:00 amOPO - CLT
2 stops39h 17mUnited Airlines
Deal found 9/13$541
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:00 amCLT - OPO
2 stops22h 30mUnited Airlines
Thu 1/156:00 amOPO - CLT
2 stops17h 59mUnited Airlines
Deal found 9/13$544
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 11/25:00 amCLT - OPO
2 stops22h 30mUnited Airlines
Fri 1/166:00 amOPO - CLT
2 stops20h 16mUnited Airlines
Deal found 9/15$545
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/205:52 pmRDU - OPO
1 stop10h 53mUnited Airlines
Fri 11/76:00 amOPO - RDU
2 stops32h 28mUnited Airlines
Deal found 9/13$545
This United deal was found by Cheapflights users on 9/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/193:15 pmRDU - OPO
1 stop13h 15mMultiple Airlines
Wed 11/264:15 pmOPO - RDU
1 stop26h 50mMultiple Airlines
Deal found 9/15$549
This Air Canada deal was found by Cheapflights users on 9/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/219:00 amRDU - OPO
2 stops21h 30mAir Canada
Tue 11/46:00 amOPO - RDU
2 stops37h 08mAir Canada
Deal found 9/13$553
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 11/23:40 pmCLT - OPO
1 stop11h 00mAmerican Airlines
Fri 1/168:20 amOPO - CLT
2 stops18h 23mAmerican Airlines
Deal found 9/14$554
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:45 pmRDU - OPO
2 stops33h 45mUnited Airlines
Tue 11/46:00 amOPO - RDU
2 stops20h 47mUnited Airlines
Deal found 9/13$555

Cheapflights Fare Finder

 
Customize your flight search to find flights from North Carolina 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 September 16, 2025.
Use the filters below to find and compare flights from North Carolina to Porto that are best for you.

Fly from

North Carolina

Fly to

Porto

Route

Depart

Return

Price

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Sun 10/26

10:35 am-9:30 am

2 stops18h 55m

Porto

Tue 11/4

6:00 am-9:47 pm

2 stops20h 47m

$532

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Wed 10/22

5:52 pm-9:45 am

1 stop10h 53m

Porto

Tue 11/4

6:00 am-9:47 pm

2 stops20h 47m

$532

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Mon 10/20

5:52 pm-9:45 am

1 stop10h 53m

Porto

Tue 11/4

6:00 am-9:47 pm

2 stops20h 47m

$532

CharlottePorto

CLT - OPO

CLTOPO

Charlotte Douglas

Mon 10/20

10:34 am-9:45 am

2 stops18h 11m

Porto

Wed 11/5

12:35 pm-1:10 pm

1 stop29h 35m

$535

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Mon 10/20

5:52 pm-9:45 am

1 stop10h 53m

Porto

Wed 11/5

12:35 pm-12:23 pm

1 stop28h 48m

$535

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Wed 10/22

5:52 pm-9:45 am

1 stop10h 53m

Porto

Wed 11/5

12:35 pm-11:41 pm

2 stops16h 06m

$535

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Mon 10/20

5:52 pm-9:45 am

1 stop10h 53m

Porto

Thu 11/6

12:35 pm-9:33 am

2 stops25h 58m

$535

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Sun 10/26

5:06 pm-9:30 am

1 stop12h 24m

Porto

Thu 11/6

12:35 pm-11:41 pm

2 stops16h 06m

$535

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Wed 10/22

5:52 pm-9:45 am

1 stop10h 53m

Porto

Thu 11/6

12:35 pm-11:41 pm

2 stops16h 06m

$535

CharlottePorto

CLT - OPO

CLTOPO

Charlotte Douglas

Tue 11/4

6:20 pm-9:30 am

1 stop10h 10m

Porto

Fri 1/16

6:00 am-4:17 pm

2 stops39h 17m

$536

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from North Carolina to Porto

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

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

Currently, January is the cheapest month in which you can book a flight from North Carolina to Porto (average of $523). Flying from North Carolina to Porto in June is currently the most expensive (average of $1,027). 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 NC to OPO?

Find hourly flight availability from North Carolina 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 September 16, 2025.

When flying from North Carolina to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from North Carolina 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 North Carolina?

    Located just 6.8 mi from the city center, Porto (OPO) is the airport most travelers will use when flying to Porto from North Carolina.

  • How long is the flight from North Carolina to Porto?

    For as low as $591, United Airlines can have you in Porto from North Carolina in 18h 21m. There are 3734 mi between North Carolina and Porto. This flight may include one or multiple stops.

  • What are the most popular routes from North Carolina to Porto?

    The most popular route from North Carolina to Porto is Charlotte Douglas - Porto. You may also consider Raleigh-Durham - Porto or Norfolk - Porto.

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

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

  • How can I find direct flights from North Carolina to Porto?

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

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

    Yes. Cheapflights offers flight deals from North Carolina 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 North Carolina to Porto?

    Currently, January is the cheapest month in which you can book a flight from North Carolina to Porto (average of $523). Flying from North Carolina to Porto in June is currently the most expensive (average of $1,027). 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

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Alternative routes for North Carolina to Porto

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Top 9 airlines flying from North Carolina to Porto

Discover the top 9 airlines that operate flights from North Carolina 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$558Average$868FlexibilityNo cancel feeOn-time71%
IberiaCheapest$587Average$804FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$602Average$2,070FlexibilityNo cancel feeOn-time70%
KLMCheapest$609Average$975FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$610Average$997FlexibilityNo cancel feeOn-time76%
DeltaCheapest$659Average$844FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$702Average$1,191FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$883Average$1,294FlexibilityNo cancel feeOn-time67%
TAP AIR PORTUGALCheapest$887Average$1,360FlexibilityNo cancel feeOn-timeN/A

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