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Cheap flights from Porto to Dallas from $485

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Dallas departing on 9/29. 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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0 bags

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Find the cheapest flights from Porto to Dallas

Cheap round-trip flights

Logo
6:00 am - 10:17 pmOPO-DFW
22h 17m2 stops
Logo
5:10 am - 6:15 pmDFW-OPO
31h 05m2 stops
$713
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Wed, Oct 1 - Sun, Oct 5
KLM Logo
6:15 am - 5:33 pmOPO-DFW
17h 18m2 stops
KLM Logo
3:50 pm - 3:30 pmDFW-OPO
17h 40m1 stop
$744KLM
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Wed, Oct 1 - Sun, Oct 5
British Airways Logo
8:20 pm - 4:15 pmOPO-DFW
25h 55m1 stop
British Airways Logo
5:40 pm - 8:20 pmDFW-OPO
20h 40m1 stop
$753British Airways
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Wed, Oct 1 - Sun, Oct 5
KLM Logo
4:20 pm - 1:35 pmOPO-DFW
27h 15m1 stop
KLM Logo
3:50 pm - 3:30 pmDFW-OPO
17h 40m1 stop
$758KLM
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Wed, Oct 1 - Sun, Oct 12
Logo
6:55 am - 11:59 pmOPO-DFW
23h 04m2 stops
Logo
5:10 am - 10:35 pmDFW-OPO
35h 25m3 stops
$765
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Wed, Oct 1 - Sun, Oct 12
Iberia Logo
8:40 pm - 3:00 pmOPO-DFW
24h 20m2 stops
Iberia Logo
12:29 pm - 11:45 amDFW-OPO
17h 16m2 stops
$776Iberia
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Thu, Feb 19 - Mon, Feb 23
Iberia Logo
8:40 pm - 5:00 pmOPO-DFW
26h 20m1 stop
Iberia Logo
12:29 pm - 11:45 amDFW-OPO
17h 16m2 stops
$780Iberia
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Thu, Feb 19 - Mon, Feb 23
Iberia Logo
8:40 pm - 5:00 pmOPO-DFW
26h 20m1 stop
Iberia Logo
5:20 pm - 7:40 amDFW-OPO
32h 20m1 stop
$788Iberia
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Thu, Feb 19 - Mon, Feb 23
Delta Logo
6:15 am - 5:33 pmOPO-DFW
17h 18m2 stops
Delta Logo
6:50 am - 10:40 amDFW-OPO
21h 50m2 stops
$808Delta
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Wed, Oct 1 - Sun, Oct 12
British Airways Logo
12:20 pm - 12:30 pmOPO-DFW
30h 10m2 stops
British Airways Logo
4:40 pm - 3:55 pmDFW-OPO
17h 15m1 stop
$2,274British Airways
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Sun, Sep 28 - Thu, Oct 2

Turkish Airlines flights from Porto to Dallas/Fort Worth Airport

Our best Turkish Airlines deals on Porto to Dallas/Fort Worth Airport flight tickets
Turkish Airlines
Sep 28
OPO10:45 amPorto
32h 00m
1 stop
DFW12:45 pmDallas/Fort Worth
Oct 2
DFW8:55 pmDallas/Fort Worth
36h 55m
1 stop
OPO3:50 pmPorto
$1,043
Find similar
Turkish Airlines
Sep 28
OPO5:10 pmPorto
25h 35m
1 stop
DFW12:45 pmDallas/Fort Worth
Oct 2
DFW8:55 pmDallas/Fort Worth
36h 55m
1 stop
OPO3:50 pmPorto
$6,363
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United Airlines flights from Porto to Dallas/Fort Worth Airport

Our best United Airlines deals on Porto to Dallas/Fort Worth Airport flight tickets
United Airlines
Oct 31
OPO12:35 pmPorto
16h 24m
1 stop
DFW11:59 pmDallas/Fort Worth
Nov 7
DFW7:30 pmDallas/Fort Worth
32h 00m
2 stops
OPO9:30 amPorto
$854
Find similar
United Airlines
Sep 28
OPO6:00 amPorto
21h 29m
2 stops
DFW9:29 pmDallas/Fort Worth
Oct 2
DFW9:25 amDallas/Fort Worth
18h 20m
2 stops
OPO9:45 amPorto
$1,148
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momondo Fare Finder

 
Customize your flight search to find flights from Porto to Dallas/Fort Worth Airport 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 September 16, 2025.
Use the filters below to find and compare flights from Porto to Dallas/Fort Worth Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortoDallas

OPO - DFW

OPODFW

Porto

Wed 10/1

6:00 am-10:17 pm

2 stops22h 17m

Dallas/Fort Worth

Sun 10/5

5:10 am-6:15 pm

2 stops31h 05m

$713

PortoDallas

OPO - DFW

OPODFW

Porto

Wed 10/1

6:15 am-5:33 pm

2 stops17h 18m

Dallas/Fort Worth

Sun 10/5

3:50 pm-3:30 pm

1 stop17h 40m

$744

PortoDallas

OPO - DFW

OPODFW

Porto

Wed 10/1

8:20 pm-4:15 pm

1 stop25h 55m

Dallas/Fort Worth

Sun 10/5

5:40 pm-8:20 pm

1 stop20h 40m

$753

PortoDallas

OPO - DFW

OPODFW

Porto

Wed 10/1

4:20 pm-1:35 pm

1 stop27h 15m

Dallas/Fort Worth

Sun 10/12

3:50 pm-3:30 pm

1 stop17h 40m

$758

PortoDallas

OPO - DFW

OPODFW

Porto

Wed 10/1

6:55 am-11:59 pm

2 stops23h 04m

Dallas/Fort Worth

Sun 10/12

5:10 am-10:35 pm

3 stops35h 25m

$765

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/19

8:40 pm-3:00 pm

2 stops24h 20m

Dallas/Fort Worth

Mon 2/23

12:29 pm-11:45 am

2 stops17h 16m

$776

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/19

8:40 pm-5:00 pm

1 stop26h 20m

Dallas/Fort Worth

Mon 2/23

12:29 pm-11:45 am

2 stops17h 16m

$780

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/19

8:40 pm-5:00 pm

1 stop26h 20m

Dallas/Fort Worth

Mon 2/23

5:20 pm-7:40 am

1 stop32h 20m

$788

PortoDallas

OPO - DFW

OPODFW

Porto

Wed 10/1

6:15 am-5:33 pm

2 stops17h 18m

Dallas/Fort Worth

Sun 10/12

6:50 am-10:40 am

2 stops21h 50m

$808

PortoDallas

OPO - DFW

OPODFW

Porto

Sun 9/28

12:20 pm-12:30 pm

2 stops30h 10m

Dallas/Fort Worth

Thu 10/2

4:40 pm-3:55 pm

1 stop17h 15m

$2,274

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 Porto to Dallas/Fort Worth Airport

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 cheapest day to depart on your flight to Dallas/Fort Worth Airport?

On average, the least expensive day to fly to Dallas/Fort Worth Airport from Porto is on a Sunday. momondo users have found tickets for Sunday departures for as low as $845. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Porto to Dallas/Fort Worth Airport for around $962.

When to book flights from Porto to Dallas/Fort Worth Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Dallas/Fort Worth Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Porto to Dallas/Fort Worth Airport (OPO to DFW) flight deals and tips

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

Direct flights

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

    Dallas/Fort Worth is 4693.4 mi away from Porto. In terms of flight time, this usually takes a little over 16h 24m.

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

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

  • How old do you have to be to fly from Porto Airport to Dallas/Fort Worth 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 Porto Airport to Dallas/Fort Worth Airport.

  • What documentation or ID do you need to fly to Dallas/Fort Worth Airport?

    The travel and health documents required for your trip to Dallas/Fort Worth 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 Dallas/Fort Worth Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Dallas?

Book flights to Dallas if you plan to visit one of these locations
Fort Worth
Arlington
Frisco
Irving
Grapevine
Plano
Denton
Thackerville
Grand Prairie
Garland
McKinney
Durant
Rockwall
Richardson
Lewisville
Ardmore
Addison
Allen
Waxahachie
Granbury

Why use momondo?

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

It is quick and easy to find Porto to Dallas flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Dallas that suits you.

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

Flights from Porto to Dallas with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Dallas from Porto.

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

Price alerts on flights to Dallas from Porto are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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