RDU - OPO

$254 Find Cheap Flights from Raleigh to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Raleigh to Porto departing on 4/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Raleigh to Porto.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Raleigh to Porto.
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Everything you should know

Cheapest round-trip
$688
Overall average: $897
KLM
Mon 4/27Thu 5/7
RDU - OPO • 2 stops
Cheapest one-way
$254
Multiple Airlines
Mon 4/27
RDU - OPO • 3 stops
Top airlines
Cheapest • from $688 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Raleigh and Porto. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $872 (round-trip)
Shortest trip • 10h 28m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 42% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Porto!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Raleigh to Porto (RDU-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Raleigh to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Raleigh to Porto

Mon, Apr 27 - Thu, May 7
KLM Logo
6:22 pm - 3:30 pm
RDU
-
OPO
16h 08m
2 stops
KLM Logo
11:25 am - 12:16 am
OPO
-
RDU
17h 51m
2 stops
$688KLM
Wed, Aug 12 - Wed, Aug 19
United Airlines Logo
9:10 am - 7:00 am
RDU
-
OPO
16h 50m
1 stop
United Airlines Logo
2:25 pm - 11:47 pm
OPO
-
RDU
38h 22m
2 stops
$717United Airlines
Wed, Aug 12 - Wed, Aug 19
United Airlines Logo
6:08 am - 7:00 am
RDU
-
OPO
19h 52m
2 stops
United Airlines Logo
2:25 pm - 11:47 pm
OPO
-
RDU
38h 22m
2 stops
$722United Airlines
Mon, Apr 13 - Mon, Apr 27
Multiple Airlines Logo
3:40 pm - 12:05 pm
RDU
-
OPO
15h 25m
2 stops
Multiple Airlines Logo
4:35 pm - 1:45 pm
OPO
-
RDU
26h 10m
1 stop
$723Multiple Airlines
Mon, Apr 27 - Thu, May 7
KLM Logo
6:22 pm - 3:30 pm
RDU
-
OPO
16h 08m
2 stops
KLM Logo
5:55 am - 3:55 pm
OPO
-
RDU
15h 00m
1 stop
$724KLM
Mon, Apr 13 - Mon, Apr 27
British Airways Logo
8:40 pm - 8:05 pm
RDU
-
OPO
18h 25m
1 stop
British Airways Logo
9:25 pm - 4:50 pm
OPO
-
RDU
24h 25m
1 stop
$725British Airways
Mon, May 4 - Tue, May 19
Delta Logo
4:25 pm - 10:00 pm
RDU
-
OPO
24h 35m
2 stops
Delta Logo
6:15 am - 3:55 pm
OPO
-
RDU
14h 40m
1 stop
$730Delta
Mon, May 4 - Tue, May 19
Delta Logo
3:55 pm - 10:00 pm
RDU
-
OPO
25h 05m
2 stops
Delta Logo
5:00 am - 5:30 pm
OPO
-
RDU
17h 30m
2 stops
$732Delta
Thu, Apr 9 - Thu, Apr 16
Multiple Airlines Logo
3:40 pm - 3:45 pm
RDU
-
OPO
19h 05m
1 stop
Multiple Airlines Logo
12:15 pm - 5:18 pm
OPO
-
RDU
34h 03m
2 stops
$738Multiple Airlines
Mon, May 4 - Thu, May 21
Delta Logo
3:55 pm - 10:00 pm
RDU
-
OPO
25h 05m
2 stops
Delta Logo
5:55 am - 9:58 pm
OPO
-
RDU
21h 03m
2 stops
$739Delta
Booking Insights

KAYAK's insights & trends for Raleigh to Porto flights

Get data-powered insights and trends into flights from Raleigh to Porto to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Raleigh to Porto, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Raleigh to Porto is January, where tickets cost $492 (return) on average. On the other hand, the most expensive months are July and September, where the average cost of round-trip tickets is $1,171 and $1,068 respectively.

Good to know

Low seasonJanuary
Cheapest flight$254
Best time to beat the crowds with an average 43% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Raleigh to Porto

When to book flights from Raleigh to Porto

Are your dates flexible? Find out the best times to travel from Raleigh to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Raleigh to Porto

  • What is the cheapest flight from Raleigh to Porto?

    In the last 3 days, the lowest price for a flight from Raleigh to Porto was $254 for a one-way ticket and $688 for a round-trip.

  • Do I need a passport to fly between Raleigh and Porto?

    A passport is required to fly from Raleigh to Porto.

  • Which airports will I be using when flying from Raleigh to Porto?

    Raleigh airport is called Raleigh-Durham and the only airport in Porto is Porto.

  • Which aircraft models fly most regularly from Raleigh to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Raleigh to Porto?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Raleigh and Porto, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Raleigh to Porto, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Raleigh to Porto are Delta and United Airlines. With an average price for the route of $760 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,079 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Raleigh to Porto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Raleigh to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Raleigh to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Raleigh is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Raleigh to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Raleigh with another airline. Booking your flights between Raleigh and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Raleigh to Porto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Raleigh up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Raleigh to Porto

 
See real verified KAYAK customer reviews for airlines flying from Raleigh to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Raleigh to Porto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8293 reviews
7.9Comfort
7.2Food
8.5Crew
8.1Boarding
7.8Entertainment
Airline reviews

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

2.0 MediocreSusan, Mar 2026
JAX - ATL
Read more Delta reviews

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

Plane from partner PSA was filthy. Plastic needs to be thoroughly cleaned. Really disgusting to look at and wonder about cleanliness of parts less visible.

Arrived early picked up my bag in a few minutes- great trip - thank you

I like that the flight attendant was very attentive and helpful. The meal menu could have more of an variety of food choices.

We missed our flight and got stranded in Miami where we had to rent a hotel we could not afford. they would not work with us because they said it was weather related even though the gate attendant said it was not. I could go on but trying to get satisfaction has wore me down, which I believe is the intent. My only solution is to never fly AA again.

Overall it was a good flight. Because we traveled on a Saturday we were upgraded to FC since my wife and I are both Executive Platinum. The only areas for improvement we noted are better snack assortment and perhaps a little nicer plane as American is flying some older planes now. Everything else on this flight was excellent, which is frankly not the norm for American since we have had multiple issues on prior AA flights.

Didn't get a seat assignment until the last minute even though i picked a seat.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

Could we please end the loud announcements about credit card offers on your flights? We are trying to sleep, work, watch videos, etc. and if we need a credit card, we will ask for one. Flying is already not what it used to be.

Departed Palm Springs over an hour late because there’s only one gate, and it has always delayed by the arriving and departing flight to Toronto and the arriving flight from Vancouver.

I checked a bag and there was only one agent to assist all customers with any issues.

I want to thank Carlos at the Miami AC desk - he was amazing and went over and above to help us out. Thank you Carlos and all the best to you!!! You made our faith in AC feel great! Sincerely, David Cubitt

Flight was canceled due to mechanical issues. After a considerable wait in the queue, Air Canada customer service was very helpful to get us on another flight. I am disappointed to report our rescheduled flight is for three days from now. Three days of extra expenses and inconvenience is unacceptable.

Extremely disappointing. My original Denver–Vancouver–Bangkok itinerary was cancelled due to a crewing issue. I was not proactively supported and had to drive back home after already reaching the airport. Communication was poor throughout, and attempts to contact customer service resulted in being on hold for nearly three hours without reaching anyone. Instead of being rebooked on the same direct routing the following day, I was rerouted onto a much longer itinerary via multiple cities and airlines, which resulted in arriving approximately 30 hours later than scheduled. At Denver airport, there was no visible Air Canada representative available to properly assist. Ground staff offered no real support beyond directing passengers to a phone number. There was no clear communication, no ownership, and no meaningful customer care during a major disruption. The final journey involved three flights instead of the original two, significantly increasing travel time and stress. Overall, the handling of the cancellation and lack of customer support was unacceptable. What could have been better? Clear communication during the cancellation Accessible customer service (phone support that actually answers) Proper in-person assistance at the airport Rebooking onto a comparable routing rather than a significantly longer one

Great setup on both flights except the last flight we got condensed dripping all over me in the last 20 mins of the flight

The last 3 hours it was freezing cold in row 56. Multiple people had their winter coats on and were utilizing the blankets provided by the airline. I also did not have easy access to figure out how to book my food allergy and advance for my meals. Most of everything I received was something I couldn't eat. This needs to be made more accessible. Also, I'm 5'10 which is the average height of the American male. I flew from Philadelphia to Toronto and then to Tokyo and the seats were absolutely unbearable. For that long of a flight it is impossible to get comfortable when doing anything. Flights need to have more space and stop prioritizing costs over people.

Again, we were rerouted all the way to Zurich and had a longer journey than expected.

Was delayed at every point/ connection. Luggages missing for 5days. Had no medications for diabetes and high B/p. when bags where finally delivered on the 30th, the insulin and ozempic were no longer patent, as the ice pack had since dissolved and the authenticity of the med is now questionable, since they must be refrigerated. Please have them refund my bag fees. I should sue them for all the inconveniences caused to me.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Excellent service; they helped me reschedule so I can fly in an earlier flight

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Everything you need to know for your flight from Raleigh to Porto

Information on your arrival and departure airports