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Cheap flights from Dallas to Porto from $391

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dallas to Porto departing on 3/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Dallas to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
4:05 pm - 10:30 amDFW-OPO
12h 25m1 stop
KLM Logo
11:15 am - 12:16 amOPO-DFW
19h 01m2 stops
$537KLM
Find Deal
Sun, Nov 9 - Mon, Nov 24
Delta Logo
11:47 am - 10:30 amDFW-OPO
16h 43m2 stops
Delta Logo
6:30 am - 12:16 amOPO-DFW
23h 46m2 stops
$542Delta
Find Deal
Sun, Nov 9 - Mon, Nov 24
Scandinavian Airlines Logo
3:59 pm - 4:45 pmDAL-OPO
18h 46m2 stops
Scandinavian Airlines Logo
5:35 pm - 11:59 pmOPO-DAL
36h 24m2 stops
$571Scandinavian Airlines
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Sun, Dec 7 - Fri, Dec 12
SWISS Logo
12:25 pm - 11:15 amDFW-OPO
40h 50m2 stops
SWISS Logo
12:05 pm - 10:44 pmOPO-DFW
40h 39m2 stops
$576SWISS
Find Deal
Mon, Dec 8 - Tue, Dec 16
United Airlines Logo
5:35 pm - 9:30 amDFW-OPO
10h 55m1 stop
United Airlines Logo
6:00 am - 10:40 pmOPO-DFW
21h 40m2 stops
$583United Airlines
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Sun, Mar 15 - Tue, Mar 24
Air Canada Logo
12:20 pm - 12:05 pmDFW-OPO
17h 45m2 stops
Air Canada Logo
6:00 am - 9:32 pmOPO-DFW
44h 32m2 stops
$584Air Canada
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Wed, Mar 4 - Fri, Mar 13
Air Canada Logo
12:20 pm - 12:05 pmDFW-OPO
17h 45m2 stops
Air Canada Logo
6:00 am - 9:32 pmOPO-DFW
20h 32m2 stops
$585Air Canada
Find Deal
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
7:00 am - 9:30 amDFW-OPO
20h 30m2 stops
United Airlines Logo
6:00 am - 10:40 pmOPO-DFW
21h 40m2 stops
$588United Airlines
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Wed, Mar 4 - Thu, Mar 12
Delta Logo
4:05 pm - 10:30 amDFW-OPO
12h 25m1 stop
Delta Logo
11:25 am - 9:03 amOPO-DFW
27h 38m2 stops
$593Delta
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Tue, Nov 4 - Wed, Nov 12
SWISS Logo
12:25 pm - 11:15 amDFW-OPO
40h 50m2 stops
SWISS Logo
12:05 pm - 10:45 pmOPO-DFW
40h 40m2 stops
$626SWISS
Find Deal
Mon, Dec 8 - Sun, Dec 14

Air Canada flights from Dallas to Porto

Our best Air Canada deals on Dallas to Porto flight tickets
Air Canada
Mar 4
DFW12:20 pmDallas/Fort Worth
17h 45m
2 stops
OPO12:05 pmPorto
Mar 13
OPO6:00 amPorto
44h 32m
2 stops
DFW9:32 pmDallas/Fort Worth
$584
Find similar
Air Canada
Mar 4
DFW12:20 pmDallas/Fort Worth
17h 45m
2 stops
OPO12:05 pmPorto
Mar 11
OPO6:00 amPorto
20h 32m
2 stops
DFW9:32 pmDallas/Fort Worth
$585
Find similar
Air Canada
Nov 9
DFW7:05 amDallas/Fort Worth
23h 45m
2 stops
OPO12:50 pmPorto
Nov 24
OPO6:00 amPorto
21h 32m
2 stops
DFW9:32 pmDallas/Fort Worth
$599
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Lufthansa flights from Dallas to Porto

Our best Lufthansa deals on Dallas to Porto flight tickets
Lufthansa
Dec 29
DFW4:15 pmDallas/Fort Worth
24h 10m
1 stop
OPO10:25 pmPorto
Jan 12
OPO1:45 pmPorto
39h 14m
2 stops
DFW10:59 pmDallas/Fort Worth
$602
Find similar
Lufthansa
Nov 4
DFW4:15 pmDallas/Fort Worth
24h 10m
1 stop
OPO10:25 pmPorto
Nov 12
OPO12:30 pmPorto
31h 55m
1 stop
DFW2:25 pmDallas/Fort Worth
$608
Find similar
Lufthansa
Nov 5
DFW7:25 pmDallas/Fort Worth
21h 00m
2 stops
OPO10:25 pmPorto
Nov 14
OPO6:00 amPorto
42h 29m
2 stops
DFW6:29 pmDallas/Fort Worth
$609
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Dallas to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 7, 2025.
Use the filters below to find and compare flights from Dallas to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 11/9

4:05 pm-10:30 am

1 stop12h 25m

Porto

Mon 11/24

11:15 am-12:16 am

2 stops19h 01m

$537

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 11/9

11:47 am-10:30 am

2 stops16h 43m

Porto

Mon 11/24

6:30 am-12:16 am

2 stops23h 46m

$542

DallasPorto

DAL - OPO

DALOPO

Dallas Love Field

Sun 12/7

3:59 pm-4:45 pm

2 stops18h 46m

Porto

Fri 12/12

5:35 pm-11:59 pm

2 stops36h 24m

$571

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 12/8

12:25 pm-11:15 am

2 stops40h 50m

Porto

Tue 12/16

12:05 pm-10:44 pm

2 stops40h 39m

$576

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 3/15

5:35 pm-9:30 am

1 stop10h 55m

Porto

Tue 3/24

6:00 am-10:40 pm

2 stops21h 40m

$583

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/4

12:20 pm-12:05 pm

2 stops17h 45m

Porto

Fri 3/13

6:00 am-9:32 pm

2 stops44h 32m

$584

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/4

12:20 pm-12:05 pm

2 stops17h 45m

Porto

Wed 3/11

6:00 am-9:32 pm

2 stops20h 32m

$585

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/4

7:00 am-9:30 am

2 stops20h 30m

Porto

Thu 3/12

6:00 am-10:40 pm

2 stops21h 40m

$588

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 11/4

4:05 pm-10:30 am

1 stop12h 25m

Porto

Wed 11/12

11:25 am-9:03 am

2 stops27h 38m

$593

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 12/8

12:25 pm-11:15 am

2 stops40h 50m

Porto

Sun 12/14

12:05 pm-10:45 pm

2 stops40h 40m

$626

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Dallas to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Dallas and Porto?

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Dallas, with most prices found around $507. If you aren’t able to travel during the month of January, then book flights to Porto from Dallas during February instead. Flights to Porto in February, while not as cheap as those in January, still average around $656.

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Tuesday when prices can be found for as low as $729. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $1,033. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the evening is the cheapest time of day to fly from Dallas to Porto when you can find flight prices for as low as $802. Flying to Porto in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,218 on average. Flights to Porto from Dallas at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Porto from Dallas when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $794 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Dallas for as low as $585 on momondo.

Cheap Dallas to Porto flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dallas to Porto

Direct flights

None
There are no direct flights from Dallas to Porto. There are no popular flight routes from Dallas to Porto.
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  • How far is Dallas to Porto by plane?

    The distance between Dallas and Porto is about 4687.1 mi. A reasonable flight in good conditions will take 10h 55m.

  • When did momondo last update prices for flights from Dallas to Porto Airport?

    Prices for flights from Dallas to Porto Airport were last updated today.

  • How many operators does momondo search for flights from Dallas to Porto Airport?

  • How old do you have to be to fly from Dallas to Porto Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dallas to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Dallas to Porto

Compare and see reviews for airlines that fly from Dallas to Porto with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $534Free CancellationRating
7.9
7,969 reviews
Search Delta flights
American AirlinesPriceFrom $546Free CancellationRating
7.2
11,041 reviews
Search American Airlines flights
IberiaPriceFrom $576Free CancellationRating
7.0
2,974 reviews
Search Iberia flights
British AirwaysPriceFrom $631Free CancellationRating
6.7
7,436 reviews
Search British Airways flights
United AirlinesPriceFrom $693Free CancellationRating
7.4
8,957 reviews
Search United Airlines flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Aveiro
Braga
Matosinhos
Caminha
Esposende
Lamego
Guimarães
Chaves
Espinho
Viseu
Ponte de Lima
Arcos de Valdevez
Pinhao
Santa Maria da Feira
Curia
Penafiel
Mesao Frio
Mira

Why use momondo?

Why should I use momondo to find a flight deal from Dallas to Porto?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Porto from Dallas.

Can I find flights from Dallas to Porto with flexible booking policies on momondo?

Yes. All flights to Porto from Dallas on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Dallas to Porto?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Dallas to Porto.

I’m not ready to book a flight from Dallas to Porto right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Dallas to Porto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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