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$310+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — OPO
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
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 November 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$503
(United Airlines)

One-way from

$322
(Kiwi.com)

Popular in

May

Cheapest in

January

Average price

$656
Provider with most accurate pricing for Raleigh-Durham-Porto flight deals.
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Provider most trusted by Cheapflights users for Raleigh-Durham-Porto flights.
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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. 19% potential increase in price ($249 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 3, 2025.

This United Airlines deal was found by Cheapflights users on 11/1. 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 12/15:38 pmAVL - OPO
2 stops37h 02mUnited Airlines
Wed 12/106:00 amOPO - AVL
2 stops34h 44mUnited Airlines
Deal found 11/1$503
This Mytrip deal was found by Cheapflights users on 11/2. 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.
Tue 11/259:30 amCLT - OPO
2 stops21h 40mMultiple Airlines
Tue 12/29:05 pmOPO - CLT
2 stops24h 12mMultiple Airlines
Deal found 11/2$570
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:50 pmCLT - OPO
1 stop13h 00mLufthansa
Wed 12/106:00 amOPO - CLT
2 stops17h 50mLufthansa
Deal found 11/1$573
This United deal was found by Cheapflights users on 11/1. 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.
Mon 11/171:56 pmCLT - OPO
1 stop14h 34mMultiple Airlines
Wed 12/31:45 pmOPO - CLT
1 stop32h 10mMultiple Airlines
Deal found 11/1$578
This Delta deal was found by Cheapflights users on 11/1. 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 11/179:47 amCLT - OPO
2 stops19h 43mDelta
Wed 12/36:00 amOPO - CLT
2 stops17h 36mDelta
Deal found 11/1$580
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/236:23 pmCLT - OPO
1 stop10h 07mUnited Airlines
Thu 12/46:00 amOPO - CLT
2 stops22h 59mUnited Airlines
Deal found 11/2$583
This United deal was found by Cheapflights users on 11/2. 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.
Sun 11/236:23 pmCLT - OPO
1 stop10h 07mMultiple Airlines
Thu 12/42:05 pmOPO - CLT
1 stop31h 50mMultiple Airlines
Deal found 11/2$584
This Lufthansa deal was found by Cheapflights users on 11/2. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:50 pmCLT - OPO
1 stop13h 00mLufthansa
Thu 12/42:05 pmOPO - CLT
1 stop31h 50mLufthansa
Deal found 11/2$586
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/236:00 amCLT - OPO
2 stops22h 30mUnited Airlines
Wed 12/312:30 pmOPO - CLT
2 stops27h 02mUnited Airlines
Deal found 11/2$587
This KLM deal was found by Cheapflights users on 11/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:44 pmCLT - OPO
2 stops16h 46mKLM
Wed 12/106:00 amOPO - CLT
2 stops20h 55mKLM
Deal found 11/1$591
This United Airlines deal was found by Cheapflights users on 11/1. 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 11/254:22 pmAVL - OPO
2 stops17h 23mUnited Airlines
Tue 12/212:30 pmOPO - AVL
2 stops33h 20mUnited Airlines
Deal found 11/1$621
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Fri 11/284:21 pmAVL - OPO
1 stop12h 09mMultiple Airlines
Thu 12/116:00 amOPO - AVL
2 stops19h 38mMultiple Airlines
Deal found 11/1$633

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 November 3, 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

Tue 1/27

1:13 pm-10:30 am

2 stops16h 17m

Porto

Tue 2/3

6:05 am-6:37 pm

2 stops17h 32m

$492

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Tue 1/27

1:13 pm-10:30 am

2 stops16h 17m

Porto

Tue 2/3

11:25 am-4:45 pm

1 stop34h 20m

$500

AshevillePorto

AVL - OPO

AVLOPO

Asheville Regional

Mon 12/1

5:38 pm-11:40 am

2 stops37h 02m

Porto

Wed 12/10

6:00 am-11:44 am

2 stops34h 44m

$503

CharlottePorto

CLT - OPO

CLTOPO

Charlotte Douglas

Tue 11/25

9:30 am-12:10 pm

2 stops21h 40m

Porto

Tue 12/2

9:05 pm-4:17 pm

2 stops24h 12m

$570

CharlottePorto

CLT - OPO

CLTOPO

Charlotte Douglas

Wed 3/11

1:54 pm-9:30 am

1 stop15h 36m

Porto

Wed 3/25

1:45 pm-5:55 pm

1 stop32h 10m

$576

CharlottePorto

CLT - OPO

CLTOPO

Charlotte Douglas

Mon 11/17

1:56 pm-9:30 am

1 stop14h 34m

Porto

Wed 12/3

1:45 pm-4:55 pm

1 stop32h 10m

$578

CharlottePorto

CLT - OPO

CLTOPO

Charlotte Douglas

Mon 11/17

9:47 am-10:30 am

2 stops19h 43m

Porto

Wed 12/3

6:00 am-6:36 pm

2 stops17h 36m

$580

CharlottePorto

CLT - OPO

CLTOPO

Charlotte Douglas

Mon 11/24

6:20 pm-9:30 am

1 stop10h 10m

Porto

Wed 12/3

6:00 am-10:32 am

2 stops33h 32m

$583

CharlottePorto

CLT - OPO

CLTOPO

Charlotte Douglas

Mon 11/24

6:20 pm-9:30 am

1 stop10h 10m

Porto

Thu 12/4

6:00 am-9:39 pm

2 stops20h 39m

$583

CharlottePorto

CLT - OPO

CLTOPO

Charlotte Douglas

Mon 11/24

6:20 pm-9:30 am

1 stop10h 10m

Porto

Fri 12/5

6:00 am-11:59 pm

2 stops22h 59m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 36 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, November is the cheapest month in which you can book a flight from North Carolina to Porto (average of $560). Flying from North Carolina to Porto in June is currently the most expensive (average of $1,081). 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 November 3, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 15% on flights from North Carolina to Porto by exploring options for tickets in the evening.

What is the cheapest day to fly from North Carolina to Porto?

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

Travelers seeking maximum savings on their North Carolina to Porto flight should consider departing on Wednesday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 $492, KLM can have you in Porto from North Carolina in 16h 17m. There are 3699 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 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, November is the cheapest month in which you can book a flight from North Carolina to Porto (average of $560). Flying from North Carolina to Porto in June is currently the most expensive (average of $1,081). 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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Top 8 airlines flying from North Carolina to Porto

Discover the top 8 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$558Average$868FlexibilityNo cancel feeOn-time71%
IberiaCheapest$588Average$811FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$608Average$953FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$638Average$1,294FlexibilityNo cancel feeOn-time67%
DeltaCheapest$650Average$792FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$663Average$2,070FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$702Average$1,188FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$887Average$1,360FlexibilityNo cancel feeOn-timeN/A

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