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$299+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — OPO
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
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Cheap 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 enero 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. 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.
dom. 3/14:43 pm
AVL
-
OPO
1 stop11h 47m
United Airlines
mié. 3/186:00 am
OPO
-
AVL
2 stops18h 47m
United Airlines
Deal found 1/27$488
This United Airlines deal was found by Cheapflights users on 1/27. 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.
dom. 3/16:45 am
AVL
-
OPO
2 stops21h 45m
United Airlines
mar. 3/176:00 am
OPO
-
AVL
2 stops18h 47m
United Airlines
Deal found 1/27$492
This United Airlines deal was found by Cheapflights users on 1/27. 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.
mar. 4/211:15 pm
RDU
-
OPO
2 stops15h 30m
United Airlines
mar. 5/56:00 am
OPO
-
RDU
2 stops35h 11m
United Airlines
Deal found 1/27$492
This Delta deal was found by Cheapflights users on 1/27. 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.
dom. 3/14:04 pm
AVL
-
OPO
2 stops37h 26m
Delta
lun. 3/1611:15 am
OPO
-
AVL
2 stops38h 54m
Delta
Deal found 1/27$494
This United Airlines deal was found by Cheapflights users on 1/27. 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.
sáb. 2/285:50 pm
AVL
-
OPO
2 stops34h 40m
United Airlines
vie. 3/136:00 am
OPO
-
AVL
2 stops18h 47m
United Airlines
Deal found 1/27$497
This Delta deal was found by Cheapflights users on 1/27. 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.
mié. 3/47:15 am
AVL
-
OPO
2 stops27h 10m
Delta
mar. 3/175:00 am
OPO
-
AVL
2 stops21h 09m
Delta
Deal found 1/27$500
This Delta deal was found by Cheapflights users on 1/28. 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.
lun. 3/169:54 am
RDU
-
OPO
2 stops20h 36m
Delta
lun. 3/2311:25 am
OPO
-
RDU
2 stops27h 40m
Delta
Deal found 1/28$500
This United Airlines deal was found by Cheapflights users on 1/27. 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.
dom. 3/14:43 pm
AVL
-
OPO
1 stop11h 47m
United Airlines
lun. 3/1612:30 pm
OPO
-
AVL
2 stops32h 25m
United Airlines
Deal found 1/27$508
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/213:05 pm
RDU
-
OPO
1 stop13h 40m
Lufthansa
mar. 4/286:00 am
OPO
-
RDU
2 stops22h 44m
Lufthansa
Deal found 1/28$508
This American Airlines deal was found by Cheapflights users on 1/27. 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.
mar. 4/711:36 am
AVL
-
OPO
2 stops19h 09m
Multiple Airlines
mar. 4/288:40 pm
OPO
-
AVL
2 stops27h 59m
Multiple Airlines
Deal found 1/27$511
This American Airlines deal was found by Cheapflights users on 1/27. 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.
lun. 4/2711:01 am
RDU
-
OPO
2 stops15h 39m
American Airlines
jue. 5/78:20 am
OPO
-
RDU
2 stops15h 44m
American Airlines
Deal found 1/27$511
This United Airlines deal was found by Cheapflights users on 1/27. 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.
sáb. 2/285:50 pm
AVL
-
OPO
2 stops34h 40m
United Airlines
lun. 3/1612:30 pm
OPO
-
AVL
2 stops32h 25m
United Airlines
Deal found 1/27$518

Find 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 enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$488
(United Airlines)

One-way from

$299
(Iberia)

Popular in

May

Cheapest in

February

Average price

$803
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 North Carolina to Porto
Search Deals
One-way flight from North Carolina to Porto
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($193 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 29, 2026.
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

AshevillePorto

AVL - OPO

AVLOPO

Asheville Regional

lun. 3/2

4:43 pm-9:30 am

1 stop11h 47m

Porto

vie. 3/13

6:00 am-8:47 pm

2 stops18h 47m

$488

AshevillePorto

AVL - OPO

AVLOPO

Asheville Regional

dom. 3/1

4:43 pm-9:30 am

1 stop11h 47m

Porto

mar. 3/17

6:00 am-8:47 pm

2 stops18h 47m

$488

AshevillePorto

AVL - OPO

AVLOPO

Asheville Regional

dom. 3/1

6:45 am-9:30 am

2 stops21h 45m

Porto

vie. 3/13

6:00 am-8:47 pm

2 stops18h 47m

$492

AshevillePorto

AVL - OPO

AVLOPO

Asheville Regional

mar. 3/3

6:45 am-9:30 am

2 stops21h 45m

Porto

mié. 3/18

6:00 am-8:47 pm

2 stops42h 47m

$492

AshevillePorto

AVL - OPO

AVLOPO

Asheville Regional

dom. 3/1

6:45 am-9:30 am

2 stops21h 45m

Porto

mié. 3/18

6:00 am-4:55 pm

2 stops38h 55m

$492

AshevillePorto

AVL - OPO

AVLOPO

Asheville Regional

mar. 3/3

6:45 am-9:30 am

2 stops21h 45m

Porto

vie. 3/13

6:00 am-8:47 pm

2 stops18h 47m

$492

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

mar. 4/21

1:15 pm-9:45 am

2 stops15h 30m

Porto

mar. 5/5

6:00 am-12:11 pm

2 stops35h 11m

$492

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

mar. 4/21

6:00 am-9:45 am

2 stops22h 45m

Porto

mar. 4/28

6:00 am-9:36 am

2 stops32h 36m

$492

AshevillePorto

AVL - OPO

AVLOPO

Asheville Regional

dom. 3/1

4:04 pm-10:30 am

2 stops37h 26m

Porto

lun. 3/16

11:15 am-10:09 pm

2 stops38h 54m

$494

AshevillePorto

AVL - OPO

AVLOPO

Asheville Regional

sáb. 2/28

5:50 pm-9:30 am

2 stops34h 40m

Porto

mié. 3/18

6:00 am-4:55 pm

2 stops38h 55m

$497

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 51 results
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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 $798). 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.

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 $488, United Airlines can have you in Porto from North Carolina in 11h 47m. There are 3898 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 Raleigh-Durham - Porto. You may also consider Charlotte Douglas - Porto or Asheville Regional - 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 $798). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for North Carolina to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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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 enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$558Average$782FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$576Average$736FlexibilityNo cancel feeOn-time76%
DeltaCheapest$597Average$760FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$602Average$1,662FlexibilityNo cancel feeOn-time70%
KLMCheapest$618Average$948FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$638Average$1,294FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$642Average$1,065FlexibilityNo cancel feeOn-time69%
IberiaCheapest$655Average$857FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$887Average$1,360FlexibilityNo cancel feeOn-timeN/A

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