CLT - OPO

$285 Find Cheap Flights from Charlotte to Porto

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Charlotte to Porto departing on 3/16. 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 Charlotte to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Charlotte to Porto, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$559
Typical prices: $719-$856
Multiple Airlines
Mon 3/16Tue 3/31
CLT - OPO • 2 stops
Cheapest one-way
Multiple Airlines
Sun 2/1
CLT - OPO • multi-stop
Top airlines
United Airlines
Cheapest • from $576 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 29% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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 Charlotte to Porto (CLT-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Charlotte 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 Charlotte to Porto

Mon, Mar 16 - Tue, Mar 31
Multiple Airlines Logo
5:05 pm - 12:50 pm
CLT
-
OPO
15h 45m
2 stops
Multiple Airlines Logo
6:20 am - 4:45 pm
OPO
-
CLT
15h 25m
1 stop
$559Multiple Airlines
Mon, Mar 16 - Tue, Mar 31
United Airlines Logo
9:40 am - 9:30 am
CLT
-
OPO
19h 50m
2 stops
United Airlines Logo
6:00 am - 11:57 pm
OPO
-
CLT
22h 57m
2 stops
$576United Airlines
Mon, Mar 16 - Tue, Mar 31
Lufthansa Logo
7:50 pm - 12:50 pm
CLT
-
OPO
13h 00m
1 stop
Lufthansa Logo
11:05 am - 4:45 pm
OPO
-
CLT
34h 40m
1 stop
$578Lufthansa
Sun, Mar 15 - Tue, Mar 31
Lufthansa Logo
7:50 pm - 12:50 pm
CLT
-
OPO
13h 00m
1 stop
Lufthansa Logo
6:20 am - 4:45 pm
OPO
-
CLT
15h 25m
1 stop
$581Lufthansa
Sun, Mar 15 - Thu, Apr 2
Lufthansa Logo
7:50 pm - 12:50 pm
CLT
-
OPO
13h 00m
1 stop
Lufthansa Logo
6:20 am - 4:45 pm
OPO
-
CLT
15h 25m
1 stop
$582Lufthansa
Sun, Mar 15 - Wed, Apr 1
Lufthansa Logo
7:50 pm - 12:50 pm
CLT
-
OPO
13h 00m
1 stop
Lufthansa Logo
11:05 am - 11:57 pm
OPO
-
CLT
17h 52m
2 stops
$585Lufthansa
Tue, Mar 17 - Thu, Apr 2
United Airlines Logo
6:20 pm - 9:30 am
CLT
-
OPO
11h 10m
1 stop
United Airlines Logo
6:00 am - 11:57 pm
OPO
-
CLT
22h 57m
2 stops
$587United Airlines
Sun, Mar 15 - Thu, Apr 2
Lufthansa Logo
7:50 pm - 12:50 pm
CLT
-
OPO
13h 00m
1 stop
Lufthansa Logo
6:00 am - 11:57 pm
OPO
-
CLT
22h 57m
2 stops
$591Lufthansa
Sun, Mar 15 - Thu, Apr 2
United Airlines Logo
6:15 am - 9:30 am
CLT
-
OPO
23h 15m
2 stops
United Airlines Logo
6:00 am - 11:57 pm
OPO
-
CLT
22h 57m
2 stops
$592United Airlines
Tue, Mar 17 - Tue, Mar 31
Delta Logo
6:00 am - 10:30 am
CLT
-
OPO
24h 30m
2 stops
Delta Logo
11:30 am - 4:26 pm
OPO
-
CLT
33h 56m
2 stops
$593Delta
Booking Insights

KAYAK's insights & trends for Charlotte to Porto flights

Get data-powered insights and trends into flights from Charlotte 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 Charlotte 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 Charlotte to Porto departing in March.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Charlotte 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 Charlotte to Porto is November, where tickets cost $642 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,619 and $1,004 respectively.

How far in advance should I book a flight from Charlotte to Porto?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Charlotte to Porto, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Charlotte to Porto, you should book around 2 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$559
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 78% increase in price.
Flight from Charlotte to Porto

When to book flights from Charlotte to Porto

Are your dates flexible? Find out the best times to travel from Charlotte 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 Charlotte to Porto

  • What is the cheapest flight from Charlotte to Porto?

    In the last 3 days, the lowest price for a flight from Charlotte to Porto was $285 for a one-way ticket and $559 for a round-trip.

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

    Yes, you’ll need a passport to travel to Porto from Charlotte.

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

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

  • Which airline alliances offer flights from Charlotte to Porto?

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

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

    The two airlines most popular with KAYAK users for flights from Charlotte to Porto are United Airlines and American Airlines. With an average price for the route of $1,027 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $803 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Charlotte 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 Charlotte to Porto.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Charlotte 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 Charlotte 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 Charlotte with another airline. Booking your flights between Charlotte 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 Charlotte 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 Charlotte 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 Charlotte to Porto

 
See real verified KAYAK customer reviews for airlines flying from Charlotte 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 Charlotte 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.
7.4
United AirlinesOverall score based on 9226 reviews
7.7Boarding
6.6Food
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

10.0 ExcellentLori, Jan 2026
EWR - BGI
Read more United Airlines reviews

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

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.

Bags took over and hour to come out. Delays due to wind caused rebooking.

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

Flight was on time is the only good thing. Person loading the plane called 1-6 to board at the same time, made it chaotic. Plane was too small for even putting backpacks in overhead. Seat for normal sized people were too small. The WIFI didn't work. When we landed had to wait because not enough ground crew.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

After arriving in Dallas, the aircraft taxied for an unusually long time and was unable to park at the gate, which caused a significant delay and made me miss my connecting flight. I then had to wait in a very long line to be rebooked, and I was told that no hotel or meal accommodations would be provided. What is even more unacceptable is that my luggage was mishandled and has still not been located. My suitcase contains important medications that I urgently need, and I have been unable to access them due to the airline’s mishandling. This situation has caused me considerable stress and inconvenience, and I need this issue to be resolved immediately.

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

You can plug your phone in & use their wifi to watch movies, etc, but the plane’s wifi was disconnected for most of the flight.

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Suddenly, I don't find my flight back on the app Help Ticket 0757345716866 Hoeflich Flight back Sunday ib5333 Ib2629 Ib4268

Was all good.l including a sofdrink. AA improved significantly. There was no entertainment.

Flight cancelled, lost a day of travel where we were trying to meet friends we couldn't meet. Iberia website is very difficult to navigate and has lots of dead links. If you do not speak Spanish it is even harder. Tried communicating on their WhatsApp and that was also close to impossible. We were told we'd be compensated 150EU's for this cancelled flight but there is no avenue towards rectifying this issue. I've had to take it up with my credit card to contest the charges and not pay for a flight that didn't happen but doubt I will ever be reimbursed for my two Ubers to the airport where we never even departed or the 150EU's we were told we would receive. I would never fly Iberia again. Clown show.

The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0

The seats are so small that you can barely move at all. Don't try to eat with utensils in your seat either - you will elbow your neighbor in the face. Miserably small and I swear they are shrinking every time I fly. Food was meh (per usual), but at least there is free alcohol on an overseas flight. Doesn't make up for sitting in a torture chamber while hurtling through the air with hundreds of fussy people, but it's something. Entertainment options (movies, shows) are okay, nothing special, but at least there are screens, because most of the seats in these large planes do not have adjustable lighting - or air control - that you can get to, it's too high to reach - which makes reading impossible. Zero stars, AA.

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Getting the boarding passes between the BA and AA apps was very clunky.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

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

Information on your arrival and departure airports