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Cheap flights from Porto to Dallas from $474

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 5/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Porto to Dallas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:40 pm - 7:55 pm
OPO
-
DFW
31h 15m2 stops
Multiple Airlines Logo
1:36 pm - 3:00 pm
DFW
-
OPO
19h 24m2 stops
$677Multiple Airlines
Mon, Feb 9 - Tue, Feb 17
Delta Logo
5:00 am - 11:19 pm
OPO
-
DFW
24h 19m2 stops
Delta Logo
4:05 pm - 10:30 am
DFW
-
OPO
12h 25m1 stop
$825Delta
Mon, Feb 9 - Tue, Feb 17
KLM Logo
11:25 am - 2:00 pm
OPO
-
DFW
32h 35m1 stop
KLM Logo
4:05 pm - 10:30 am
DFW
-
OPO
12h 25m1 stop
$839KLM
Mon, Feb 9 - Tue, Feb 17
Multiple Airlines Logo
12:25 pm - 5:30 am
OPO
-
DFW
23h 05m1 stop
Multiple Airlines Logo
9:15 pm - 5:45 pm
DFW
-
OPO
14h 30m1 stop
$870Multiple Airlines
Mon, Feb 9 - Tue, Feb 17
Air Canada Logo
6:15 am - 9:32 pm
OPO
-
DFW
21h 17m2 stops
Air Canada Logo
12:00 pm - 2:45 pm
DFW
-
OPO
20h 45m2 stops
$876Air Canada
Mon, Feb 9 - Tue, Feb 17
United Airlines Logo
12:35 pm - 9:59 pm
OPO
-
DFW
15h 24m1 stop
United Airlines Logo
9:55 am - 9:30 am
DFW
-
OPO
17h 35m2 stops
$878United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
12:35 pm - 9:59 pm
OPO
-
DFW
15h 24m1 stop
United Airlines Logo
4:15 pm - 2:55 pm
DFW
-
OPO
16h 40m1 stop
$883United Airlines
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
8:20 am - 4:50 pm
OPO
-
DFW
14h 30m1 stop
American Airlines Logo
5:20 pm - 4:00 pm
DFW
-
OPO
16h 40m1 stop
$889American Airlines
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
8:20 am - 10:29 pm
OPO
-
DFW
20h 09m2 stops
American Airlines Logo
10:34 am - 7:40 am
DFW
-
OPO
15h 06m2 stops
$895American Airlines
Thu, Feb 26 - Mon, Mar 2

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
Feb 26
OPO12:35 pmPorto
16h 40m
2 stops
DFW11:15 pmDallas/Fort Worth
Mar 2
DFW12:06 pmDallas/Fort Worth
15h 24m
2 stops
OPO9:30 amPorto
$878
Find similar
United Airlines
Feb 26
OPO12:35 pmPorto
15h 24m
1 stop
DFW9:59 pmDallas/Fort Worth
Mar 2
DFW4:15 pmDallas/Fort Worth
16h 40m
1 stop
OPO2:55 pmPorto
$883
Find similar

American Airlines flights from Porto to Dallas/Fort Worth Airport

Our best American Airlines deals on Porto to Dallas/Fort Worth Airport flight tickets
American Airlines
Feb 26
OPO8:20 amPorto
14h 30m
1 stop
DFW4:50 pmDallas/Fort Worth
Mar 2
DFW5:20 pmDallas/Fort Worth
16h 40m
1 stop
OPO4:00 pmPorto
$889
Find similar
American Airlines
Feb 26
OPO8:20 amPorto
20h 09m
2 stops
DFW10:29 pmDallas/Fort Worth
Mar 2
DFW10:34 amDallas/Fort Worth
15h 06m
2 stops
OPO7:40 amPorto
$895
Find similar

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 December 18, 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

Mon 2/9

6:40 pm-7:55 pm

2 stops31h 15m

Dallas/Fort Worth

Tue 2/17

1:36 pm-3:00 pm

2 stops19h 24m

$677

PortoDallas

OPO - DFW

OPODFW

Porto

Mon 2/9

5:00 am-11:19 pm

2 stops24h 19m

Dallas/Fort Worth

Tue 2/17

4:05 pm-10:30 am

1 stop12h 25m

$825

PortoDallas

OPO - DFW

OPODFW

Porto

Mon 2/9

11:25 am-2:00 pm

1 stop32h 35m

Dallas/Fort Worth

Tue 2/17

4:05 pm-10:30 am

1 stop12h 25m

$839

PortoDallas

OPO - DFW

OPODFW

Porto

Mon 2/9

12:25 pm-5:30 am

1 stop23h 05m

Dallas/Fort Worth

Tue 2/17

9:15 pm-5:45 pm

1 stop14h 30m

$870

PortoDallas

OPO - DFW

OPODFW

Porto

Mon 2/9

6:15 am-9:32 pm

2 stops21h 17m

Dallas/Fort Worth

Tue 2/17

12:00 pm-2:45 pm

2 stops20h 45m

$876

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/26

12:35 pm-9:59 pm

1 stop15h 24m

Dallas/Fort Worth

Mon 3/2

9:55 am-9:30 am

2 stops17h 35m

$878

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/26

12:35 pm-9:59 pm

1 stop15h 24m

Dallas/Fort Worth

Mon 3/2

4:15 pm-2:55 pm

1 stop16h 40m

$883

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/26

8:20 am-4:50 pm

1 stop14h 30m

Dallas/Fort Worth

Mon 3/2

5:20 pm-4:00 pm

1 stop16h 40m

$889

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/26

8:20 am-10:29 pm

2 stops20h 09m

Dallas/Fort Worth

Mon 3/2

10:34 am-7:40 am

2 stops15h 06m

$895

PortoDallas

OPO - DFW

OPODFW

Porto

Sun 5/3

6:35 am-8:50 pm

2 stops44h 15m

$474

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Dallas from

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

Fastest flight time

18h 23m

Direct flights

None
The fastest flight from Porto to Dallas/Fort Worth Airport takes 18h 23m
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.
Search flight deals

  • 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 18h 23m.

  • 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
Plano
Grapevine
Irving
Denton
Thackerville
Grand Prairie
Durant
McKinney
Garland
Rockwall
Richardson
Lewisville
Ardmore
Addison
Allen
Mansfield
Waxahachie

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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