RDU - OPO

$299 Find Cheap Flights from Raleigh to Porto - Compare and Save

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 8/5. 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

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Everything you should know

Cheapest round-trip
$651
Typical prices: $740-$887
Multiple Airlines
Fri 10/2Mon 10/5
RDU - OPO • 2 stops
Cheapest one-way
$299
Multiple Airlines
Wed 8/5
RDU - OPO • 3 stops
Top airlines
Cheapest • from $715 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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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
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Insights
Top layover airports
Cheapest • Avg $1,004 (round-trip)
Shortest trip • 10h 00m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 46% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Fri, Oct 2 - Mon, Oct 5
Multiple Airlines Logo
8:30 pm - 11:25 pm
RDU
-
OPO
21h 55m
2 stops
Multiple Airlines Logo
2:20 pm - 7:30 pm
OPO
-
RDU
34h 10m
3 stops
$651Multiple Airlines
Thu, Sep 10 - Tue, Sep 15
Multiple Airlines Logo
8:30 pm - 8:00 am
RDU
-
OPO
30h 30m
3 stops
Multiple Airlines Logo
7:10 am - 7:30 pm
OPO
-
RDU
17h 20m
2 stops
$654Multiple Airlines
Wed, Sep 30 - Mon, Oct 5
Multiple Airlines Logo
8:30 pm - 12:40 am
RDU
-
OPO
23h 10m
3 stops
Multiple Airlines Logo
2:20 pm - 7:30 pm
OPO
-
RDU
34h 10m
3 stops
$678Multiple Airlines
Wed, Sep 30 - Mon, Oct 5
Multiple Airlines Logo
8:30 pm - 10:55 am
RDU
-
OPO
33h 25m
3 stops
Multiple Airlines Logo
2:20 pm - 7:30 pm
OPO
-
RDU
34h 10m
3 stops
$698Multiple Airlines
Sun, Aug 23 - Sun, Aug 30
Multiple Airlines Logo
9:10 am - 8:30 pm
RDU
-
OPO
30h 20m
2 stops
Multiple Airlines Logo
4:00 pm - 9:32 pm
OPO
-
RDU
34h 32m
3 stops
$712Multiple Airlines
Mon, Nov 9 - Wed, Nov 18
Delta Logo
6:25 pm - 10:35 am
RDU
-
OPO
11h 10m
1 stop
Delta Logo
5:55 am - 4:15 pm
OPO
-
RDU
15h 20m
1 stop
$715Delta
Mon, Nov 9 - Tue, Nov 17
United Airlines Logo
12:45 pm - 9:30 am
RDU
-
OPO
15h 45m
1 stop
United Airlines Logo
6:00 am - 9:18 pm
OPO
-
RDU
20h 18m
2 stops
$717United Airlines
Mon, Nov 9 - Wed, Nov 18
Delta Logo
6:25 pm - 10:35 am
RDU
-
OPO
11h 10m
1 stop
Delta Logo
5:00 am - 10:28 pm
OPO
-
RDU
22h 28m
2 stops
$718Delta
Wed, Nov 11 - Mon, Nov 16
Multiple Airlines Logo
1:20 pm - 12:05 pm
RDU
-
OPO
17h 45m
2 stops
Multiple Airlines Logo
7:20 pm - 8:33 pm
OPO
-
RDU
30h 13m
2 stops
$719Multiple Airlines
Tue, Nov 10 - Wed, Nov 18
Delta Logo
12:00 pm - 10:35 am
RDU
-
OPO
17h 35m
2 stops
Delta Logo
5:55 am - 4:15 pm
OPO
-
RDU
15h 20m
1 stop
$720Delta
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.

How much is a round-trip flight from Raleigh to Porto?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Raleigh to Porto departing in October.

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 May and July, where the average cost of round-trip tickets is $1,193 and $1,175 respectively.

Good to know

Low seasonJanuary
Cheapest flight$299
Best time to beat the crowds with an average 47% drop in price.
Most popular time to fly with an average 3% 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 5 days, the lowest price for a flight from Raleigh to Porto was $299 for a one-way ticket and $651 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 $837 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,235 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.
7.8
DeltaOverall score based on 8467 reviews
7.8Comfort
7.8Entertainment
8.1Boarding
8.5Crew
7.2Food
Airline reviews

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

2.0 MediocreAnonymous, Jun 2026
RDU - LGA
Read more Delta reviews

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Two delays on two separate planes with parts they could not easily find and replace.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Flight was 3 hours late so only had an OK experience

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

Flight was late. Club was full. Experience is exactly what I expected.

Everything would be much better if Kayak stopped nosing into my business with Delta.

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Food is terrible. Flight is outdated and seats are not comfy.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

Boarding was easy. RDU gates can get crowded, be prepared to be patient. Flight was smooth, with excellent service. Pilots really provided a lot of visibility into flight details. Plane and seats were clean and serviceable. TY!

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Got automatically assigned middle seats unless you fork out extra money for a seat assignment, not impressed.

Late by nearly 2 hours due to taking that long to change a tire on the plane.

It’s love good long way travel!! I always want more give me price down i want ever month travel I miss travel only North Carolina to Thailand in my love her !!

I found the seats ergonomically uncomfortable forcing the body to seat slightly hunched. For a short flight I worked on adjustments but for a longer flight, it would be difficult.

For some unknown reason, my checked bag didn't arrive at the same time. I got to my destination about 30 minutes late (5pm) and my bag was delivered to my hotel at 2:06am.... in the past 4 flights with AA, they been delayed and I've missed connections and my bags. Poor service.

Check in for 5am flight at RDU was hampered by American check in counters being seriously understaffed , was told even supervisor called out. Took so long in line for special services check in that we missed our 5am departure even after arriving at 3:30am. Had to be rescheduled to later flight from Charlotte to St Thomas.

Awfully rude American worker at door when we started boarding flight. Then, walk into a blazing hot airplane with no air conditioning until twenty minutes into the flight. Free entertainment was non existent! My husband, along with the fellow passenger in our row, and I could not get entertainment to work, no WIFI! Really?? Been flying American a long time. Was very disappointed.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

Very below average , plane from Dallas to Toyko was very poor designed plane. I had to sit for 13 hours next to fat man. Really bad seat and entertainment screen sucked

This flight never occurred because AA couldn’t get their act together.

Everything was great except boarding for the flight from Charlotte to Raleigh and seating from New Orleans to Charlotte.

For an over three hour long flight one pack of cookies was not enough.

When arriving over 2 hours early to check k in at Charlotte airport I was told I would have to check my carry on ? Apparently the flight was full and may not be room. I was not given a choice and the agent was quite unpleasant about it. I am a senior amd was not comfortable me having to worry about my bag being lost vut it didn’t seem to bother him. There were lots and lots of people of all ages in line when we boarded with carryons and most larger than mine .the rest of my journey was pleasant vut this was totally unacceptable.

My wife was in a wheelchair. Most accommodating and kind staff!

From charlotte to Toronto was not good From Toronto to Dubai was very good

The gate crew were very efficient and diligent with respect to helping people with carry-on luggage. Because of their diligence, only a few "bad apples" snuck through and subsequently delayed onboarding because of the lengthy attempts they had to make to get their oversized roller bags to fit in the relatively small overhead luggage compartments in the Embraer 175 we were flying in. I also appreciated Air Canada's attempts to head off this situation by offering, during check in, the opportunity to have carry-on luggage checked through to one's ultimate destination. This made onboarding and subsequent transfers very convenient for me.

Great flight crew. Flight delayed but still made connection because I rushed through the terminal. If I’d waited for the requested wheelchair I never would have made the next flight. Also, there was no one readily available to ask for assistance, I had to search for assistance. The workers at customs seemed annoyed to help.

Plane had a problem with the steering mechanism, which causes a 2.5 hour delay while boarded.

I will never fly with Air Canada again. Our flight to Montreal to Munich was delayed. We missed our connecting flight to Marseille and we’re stuck in Munich airport for 11 hours. I will never fly Air Canada or Lufthansa again.

Missed connection by a couple of minutes. I’m hat was followed by 2.5 hours in line for a hopelessly overmatched customer service desk that actually closed after 75 minutes and directed us join the back of another one at the other end of the terminal. Gross and truly remarkable levels of incompetence with Air Canada. Buyer beware!

The departing flight from Raleigh NC (RDU) on Monday June 5th was delayed four times that day due to a technical issue that was not explained to passengers. We arrived in Toronto over three hours later than scheduled. As instructed, I have filed a claim with Air Canada for possible compensation.

There was a 1 hour delay on the return flight but it was caused by ATC restrictions in Montreal. One of 2 runways was under repair.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

Parents with permanently crying baby on board. Neither parents nor crew did anything to calm the baby. The food was extremely disappointing. Seafood stew was very, very small! Not even appetizer size! Seat had a gap in the back. Had to use a pillow to fill it.

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

Flight was great only departure was delayed to saome ground crew issues

Staff very helpful. Seat comfortable. Food generous and pretty good.

Numerous delays, missed connections flight. Then connection flights were late as well

Could not check in early online, even after multiple attempts. Got the last row when checked in at airport. Food was bad tasting and no choice at all. Comfort was poor. Overall a very bad experience. I wouldn’t fly again with Lufthansa.

Prompt boarding, safe landing and they didn't lose our luggage. No entertainment and no USB plugs to charge phones. No food, though I might have been asleep.

Excellent service by united air staff. Very helpful, understanding and do friendly.

The seat arm rest was solid and would not go up making a long flight uncomfortable

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

Information on your arrival and departure airports