OPO

$350 Find Cheap Flights from Dallas 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 Dallas to Porto departing on 3/24. 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 Dallas 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 Dallas to Porto, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$652
Overall average: $663
Iberia
Mon 4/13Tue 4/28
DFW - OPO • 1 stop
Cheapest one-way
$318
Typical prices: $525-$652
Multiple Airlines
Tue 3/24
DFW - OPO • 2 stops
Top airlines
Cheapest • from $654 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
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 Dallas to Porto

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

Mon, Apr 13 - Tue, Apr 28
Iberia Logo
9:45 pm - 4:00 pm
DFW
-
OPO
12h 15m
1 stop
Iberia Logo
8:20 am - 8:10 pm
OPO
-
DFW
17h 50m
1 stop
$652Iberia
Tue, May 5 - Tue, May 12
Turkish Airlines Logo
9:30 pm - 10:00 am
DFW
-
OPO
30h 30m
1 stop
Turkish Airlines Logo
10:40 am - 7:35 pm
OPO
-
DFW
38h 55m
1 stop
$654Turkish Airlines
Thu, Apr 23 - Mon, May 4
Turkish Airlines Logo
9:30 pm - 3:40 pm
DFW
-
OPO
36h 10m
1 stop
Turkish Airlines Logo
4:50 pm - 10:53 pm
OPO
-
DFW
36h 03m
2 stops
$666Turkish Airlines
Thu, Apr 2 - Thu, Apr 9
Turkish Airlines Logo
9:30 pm - 9:45 am
DFW
-
OPO
30h 15m
1 stop
Turkish Airlines Logo
6:10 am - 7:35 pm
OPO
-
DFW
19h 25m
1 stop
$677Turkish Airlines
Mon, Apr 13 - Wed, Apr 29
KLM Logo
3:45 pm - 3:25 pm
DFW
-
OPO
17h 40m
1 stop
KLM Logo
11:45 am - 11:44 pm
OPO
-
DFW
17h 59m
2 stops
$694KLM
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
6:40 pm - 3:25 pm
DAL
-
OPO
14h 45m
2 stops
Multiple Airlines Logo
11:30 am - 11:56 pm
OPO
-
DAL
18h 26m
2 stops
$868Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
6:40 pm - 3:25 pm
DAL
-
OPO
14h 45m
2 stops
Multiple Airlines Logo
11:30 am - 11:56 pm
OPO
-
DAL
18h 26m
2 stops
$869Multiple Airlines
Mon, Mar 30 - Thu, Apr 16
KLM Logo
6:40 pm - 5:55 pm
DAL
-
OPO
17h 15m
2 stops
KLM Logo
5:55 am - 5:50 pm
OPO
-
DAL
17h 55m
2 stops
$884KLM
Mon, Apr 27 - Tue, May 5
Delta Logo
3:53 pm - 3:15 pm
DAL
-
OPO
17h 22m
2 stops
Delta Logo
7:35 am - 10:33 pm
OPO
-
DAL
20h 58m
2 stops
$958Delta
Mon, Apr 27 - Mon, May 4
Delta Logo
3:53 pm - 3:15 pm
DAL
-
OPO
17h 22m
2 stops
Delta Logo
7:35 am - 10:33 pm
OPO
-
DAL
20h 58m
2 stops
$1,008Delta
Booking Insights

KAYAK's insights & trends for Dallas to Porto flights

Get data-powered insights and trends into flights from Dallas 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 Dallas to Porto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dallas 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 Dallas to Porto is December, where tickets cost $618 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,083 and $1,076 respectively.

How far in advance should I book a flight from Dallas 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 Dallas 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 Dallas to Porto, you should book around 3 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Cheapest flight$318
Flight from Dallas/Fort Worth Airport to Porto

When to book flights from Dallas to Porto

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

  • What is the cheapest flight from Dallas to Porto?

    In the last 3 days, the lowest price for a flight from Dallas to Porto was $318 for a one-way ticket and $654 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Dallas and on arrival in Porto.

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

    Dallas has 2 major airports: Dallas Love Field and Dallas/Fort Worth. Porto is the only airport in Porto. You’ll usually find the cheapest deals if you fly from Dallas/Fort Worth Airport.

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

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

  • Which airline alliances offer flights from Dallas to Porto?

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

  • What is the most popular layover when flying to Porto from Dallas?

    Madrid is the most popular layover city among KAYAK users traveling from Dallas to Porto.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Dallas 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 Dallas 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 Dallas with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dallas 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 Dallas up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Dallas to Porto

 
See real verified KAYAK customer reviews for airlines flying from Dallas 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 Dallas 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 8292 reviews
7.9Comfort
8.1Boarding
7.2Food
8.5Crew
7.8Entertainment
Airline reviews

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

10.0 ExcellentAnonymous, Mar 2026
ATL - DTW
Read more Delta reviews

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

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.

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

Delayed, toilets did not flush, pilot parked to far away from Gate

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Check in was rough because the check in crew did not know how to manage my international visa documents. Required a long process and 4 people to finally be able to proceed to security. They told us incorrect information several times before acknowledging we did indeed have everything we needed from the start.

Poor communication ahead of time about flight delays and old planes/other equipment.

Mechanical issue delayed us 2hrs and then once we landed sat on tarmac for 30mins because someone left a vehicle in front of the gaye

The crew was excellent and overall the flight was good. No complaints.

Like all of the flights I took to get down to Dallas. They were delayed

Flight pulled out on time but sat on runway for 30 mins. It was extremely cold in the aircraft despite wearing a winter coat. Surprisingly they had a vegetarian meal but could have some better snack choices for a 8 hour flight.

We had a male flight attendant who was super attentive and wonderful! Very professional. I have both gluten and dairy intolerance, and was only able to get a gluten free part, and not the dairy free part of the meal. Easy to order ahead of time and I appreciate being able to do that.

It was a train wreck but on an airplane. First off, flight was delayed then we board only to hear two announcements, First weather delays in Orlando and second backup battery warning on emergency lights. After sitting on the plane for almost 2 hours they have us deplane due to the maintenance issue. We were told they were getting another plane. In the mean time, I notice another American- Orlando flight and ask the gate agent if I can switch. He says he cant help me and I'd have to walk to A13 from A37. Really!? I get down there and get a seat only to get an announcement my original flight was RE-boarding. The Then inflight there's no communication and I notice on flightaware were circling over the Gulf of America. I call the flight attendant and of course she has no clue and apparently 5m later the pilot finally tells us about another delay. Why does American always have these service and delay issues? They are my LAST choice in flights now!

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Awful. They didn't even show concern that her connecting flight( Dallas to Mardrid) was gone/missing. I don't understand how that is even possible. Rudest answer from one of the crew was that American Airlines sold the tickets to somebody else. My daughter was not in the list.

The flight was canceled on a Thursday last minute. I lost thousands of dollars in hotels and car rental

Excellent lie flat seat for premium economy! Great staff. Bad food . Not so great entertainment. My bag didn’t make it either.

Really like the idea experience on this airline I will use again

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.

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

Information on your arrival and departure airports