$228 Find Cheap Flights from Dallas to Portugal

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 Portugal departing on 3/15. 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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Cheap Flights from Dallas to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon1 stop$582
Porto
Porto1 stop$582
Lisbon
Lisbon1 stop$582
Porto
Porto1 stop$582

Book Cheap Dallas to Portugal Plane Tickets

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

Wed, Apr 8 - Wed, Apr 15
KLM Logo
6:15 pm - 9:40 am
DFW
-
FNC
33h 25m2 stops
KLM Logo
10:25 am - 4:54 pm
FNC
-
DFW
36h 29m2 stops
$566KLM
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
12:20 pm - 8:10 pm
DFW
-
FNC
25h 50m3 stops
Multiple Airlines Logo
6:25 pm - 2:25 pm
FNC
-
DFW
26h 00m2 stops
$575Multiple Airlines
Tue, Mar 17 - Tue, Mar 31
United Airlines Logo
5:20 pm - 9:30 am
DFW
-
OPO
11h 10m1 stop
United Airlines Logo
6:00 am - 2:49 pm
OPO
-
DFW
38h 49m2 stops
$582United Airlines
Fri, Mar 13 - Mon, Mar 23
Multiple Airlines Logo
3:21 pm - 7:55 am
DFW
-
LIS
11h 34m1 stop
Multiple Airlines Logo
4:10 pm - 4:10 pm
LIS
-
DFW
29h 00m1 stop
$582Multiple Airlines
Wed, Jan 14 - Tue, Jan 20
United Airlines Logo
10:25 am - 8:10 am
DFW
-
LIS
15h 45m2 stops
United Airlines Logo
11:20 am - 9:39 pm
LIS
-
DFW
16h 19m1 stop
$584United Airlines
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
1:30 pm - 10:30 am
DFW
-
OPO
15h 00m2 stops
Multiple Airlines Logo
5:00 am - 5:56 pm
OPO
-
DFW
18h 56m2 stops
$584Multiple Airlines
Thu, Jan 8 - Sat, Jan 31
American Airlines Logo
8:35 pm - 6:00 pm
DFW
-
LIS
15h 25m1 stop
American Airlines Logo
8:20 am - 9:40 pm
LIS
-
DFW
19h 20m2 stops
$596American Airlines
Fri, May 15 - Sun, May 24
Air Canada Logo
9:00 pm - 9:20 am
DFW
-
LIS
30h 20m2 stops
Air Canada Logo
11:25 am - 9:45 pm
LIS
-
DFW
16h 20m1 stop
$598Air Canada
Sun, Mar 15 - Fri, Mar 20
Delta Logo
6:45 pm - 9:00 am
DFW
-
LIS
33h 15m1 stop
Delta Logo
10:00 am - 8:56 am
LIS
-
DFW
27h 56m2 stops
$599Delta
Thu, Jan 29 - Mon, Feb 2
Air Canada Logo
12:20 pm - 11:15 pm
DFW
-
TER
29h 55m2 stops
Air Canada Logo
6:40 am - 9:32 pm
TER
-
DFW
19h 52m2 stops
$1,160Air Canada
Booking Insights

KAYAK's insights & trends for Dallas to Portugal flights

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dallas to Portugal, 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 Portugal is February, when tickets cost $587 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $869 and $843 respectively.

What’s the cheapest day of the week to fly from Dallas to Portugal?

The average price of all round-trip flights from Dallas to Portugal clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Dallas to Portugal, look for departures on Tuesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Portugal, Thursday is the cheapest day to fly and Sunday is the most expensive.

How far in advance should I book a flight from Dallas to Portugal?

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 Portugal, 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 Portugal, you should book around 4 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Cheapest flight$228
Flight from Dallas/Fort Worth Airport to Lisbon

FAQs - booking Portugal flights

  • Can I leave my car at DFW?

    Passengers who wish to leave their car at DFW while flying out have long-term, hourly and daily parking options that they can choose from. Those looking for long-term parking options can opt for Valet, Remote, Express and Offsite parking lot options. Alternatively, if you want to park short-term, you should consider parking at the terminal parking lots.

  • What can I do at DFW before boarding my flight?

    DFW is home to multiple amenities that passengers flying through the airport can utilize if they have some time. DFW has artwork and displays various paintings and sculptures at the airport that you can explore. Not only that, but you can also enjoy watching aircraft land and take off at the observation deck. Alternatively, you can get spa services from massages, pedicures, manicures and facials at one of the numerous spas at the airport.

  • Do Portugual airports offer accessibility services?

    If you traveling with a companion with limited mobility through any of the Portugual airports, ensure that you contact your airline earlier to arrange for accessibility services. The airports offer extra assistance and wheelchair service upon request. Additionally, they are equipped with wheelchair-accessible amenities, including washrooms.

  • Are there lounges at any of the Portugual airports?

    All the Portugual airports feature lounges that passengers can take advantage of to unwind and relax. The lounges offer excellent services, including meals, drinks and entertainment. Note that most of these lounges are pay-per-use lounges.

  • How does KAYAK find such low prices on flights from Dallas to Portugal?

    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 Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Dallas to Portugal 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 Portugal?

    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 from Dallas to Portugal with an airline and back with another airline.

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

    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 from Dallas to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Portugal?

    The cheapest time of day to fly to Portugal is generally in the evening, when round-trip flights cost $789 on average. Morning departures are around 8% more expensive than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $891.

Top tips for finding cheap flights to Portugal

  • Dallas Fort Worth International airport (DFW) features shower facilities that passengers flying through the airport can take advantage of before boarding their flights to Portugal. These shower facilities are found in the Minutes Suites. You must pay a premium if you want to access the service.
  • Let your young children play in the McDonald's play area at DFW located at Gate D8 before taking off. The play area is equipped with electrical charging outlets and soft seating for parents.
  • If you risk missing your flight and need to get to the airport faster, you should opt for taxi services. With taxis, you can get to DFW in approximately 23 minutes. On the other hand, if you are traveling on a budget, you should consider a tram which takes 49 minutes to cover the same distance; however, it is the cheapest.
  • Upon arrival at any of the Portugual airports and looking for specific information, you should go to the information desks available at the airports to seek the assistance you need. At Lisbon International Airport (LIS), these booths are found in the departures and arrivals halls. At Porto International Airport (OPO), they are located in the baggage claim area, departure lounge and arrivals area. On the other hand, at Faro Airport (FAO) they are situated airside and landside.
  • If you feel hungry while at LIS, visit the many food booths located in terminal 1 landside and airside and explore the different cuisine. At OPO, these eateries are found on both landside and airside, while at FAO, they are located on the landside. OPO and FAO also have vending machines.

Reviews of the top 5 airlines serving from Dallas to Portugal

 
Need help choosing which airline to fly with from Dallas to Portugal? 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 8008 reviews
8.5Crew
7.3Food
8.1Boarding
7.9Comfort
7.9Entertainment
Airline reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

10.0 ExcellentMargaret, Dec 2025
BOS - PIT
Read more Delta reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

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

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

A little bit more leg room in premium economy. I am 6’4”.

Attendants were pleasant and the flight was smooth and relaxed.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

I have a gluten allergy so did have any food

We were very rushed by a staff member at the gate when transferring from American Airlines to Fijian. Then the plane stayed put for ages anyhow! The plane was delayed and my bag sent to San Francisco instead of Fiji

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

The only thing to like was that we eventually got to our destination

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

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

I was attacked in the Miami airport and the staff did nothing. On my flight from London to Miami one of the flight attendants screamed at me and demanded I keep my seat in the upright position at all times during the fight so the man behind me was comfortable for the flight. I will never in my life use British airways again

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

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

Cabin class types available on flights to Portugal

Cabin classes available on flights to Portugal. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.