What is the cheapest airline that flies from Texas to Porto?

Air Canada, Lufthansa, and United Airlines are the most popular carriers operating from Texas to Porto

How long does it take to fly to Porto?

Flight times from Texas to Porto vary, but if you’re flying out of Houston and flying into Porto (one of the most popular routes), then the duration is 12h 25m on average. Another popular route from Texas to Porto is flying from Austin to Porto, which will take roughly 12h 32m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Porto?

United Airlines, Iberia and American Airlines are the top three most popular airlines that fly to Porto from Texas according to our data. United Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 6 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

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

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

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

As of November 2025, there are 6 operators available to choose from for flights from Texas to Porto Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Texas 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.

$219 Cheap Flights from Texas to Porto in 2025/26

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Find the cheapest flights from Texas to Porto

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:05 pm - 1:20 pmAUS-OPO

13h 15m1 stop

6:35 am - 4:10 pmOPO-AUS

15h 35m1 stop

$480KLM

Find Deal

Thu, Dec 11 - Thu, Dec 25

6:40 am - 10:30 amAUS-OPO

21h 50m2 stops

11:15 am - 4:10 pmOPO-AUS

34h 55m1 stop

$481Delta

Find Deal

Mon, Feb 2 - Wed, Feb 11

11:30 am - 12:05 pmAUS-OPO

18h 35m2 stops

6:00 am - 12:19 pmOPO-AUS

36h 19m2 stops

$484Air Canada

Find Deal

Mon, Feb 2 - Tue, Feb 10

11:30 am - 12:05 pmAUS-OPO

18h 35m2 stops

6:00 am - 12:19 pmOPO-AUS

36h 19m2 stops

$485Air Canada

Find Deal

Mon, Feb 2 - Wed, Feb 11

1:00 pm - 12:50 pmAUS-OPO

17h 50m2 stops

6:00 am - 8:49 pmOPO-AUS

20h 49m2 stops

$486Lufthansa

Find Deal

Tue, Jan 13 - Sun, Jan 18

4:10 pm - 11:40 amAUS-OPO

13h 30m1 stop

6:00 am - 12:19 pmOPO-AUS

36h 19m2 stops

$495United Airlines

Find Deal

Tue, Feb 3 - Tue, Feb 10

11:30 am - 2:55 pmAUS-OPO

21h 25m2 stops

6:00 am - 12:04 pmOPO-AUS

36h 04m3 stops

$498United Airlines

Find Deal

Mon, Dec 1 - Mon, Dec 8

12:17 pm - 11:40 amAUS-OPO

17h 23m2 stops

6:00 am - 8:44 pmOPO-AUS

20h 44m2 stops

$504Lufthansa

Find Deal

Fri, Feb 6 - Fri, Feb 13

10:36 am - 9:30 amDFW-OPO

17h 54m1 stop

4:15 pm - 3:25 pmOPO-DFW

28h 10m1 stop

$589Multiple Airlines

Find Deal

Mon, Mar 16 - Wed, Mar 25

12:09 pm - 10:30 amDAL-OPO

16h 21m2 stops

6:05 am - 5:51 pmOPO-DAL

17h 46m2 stops

$591Multiple Airlines

Find Deal

Tue, Dec 30 - Tue, Jan 27

KLM flights from Texas to Porto

Our best KLM deals on Texas to Porto flight tickets

KLM

Dec 11

AUS6:05 pmAustin Bergstrom

13h 15m

1 stop

OPO1:20 pmPorto

Dec 25

OPO6:35 amPorto

15h 35m

1 stop

AUS4:10 pmAustin Bergstrom

$480

Find similar

KLM

Feb 5

AUS6:05 pmAustin Bergstrom

13h 15m

1 stop

OPO1:20 pmPorto

Feb 12

OPO6:35 amPorto

15h 35m

1 stop

AUS4:10 pmAustin Bergstrom

$482

Find similar

KLM

Dec 11

AUS6:05 pmAustin Bergstrom

15h 20m

1 stop

OPO3:25 pmPorto

Dec 25

OPO6:35 amPorto

22h 27m

2 stops

AUS11:02 pmAustin Bergstrom

$567

Find similar

Delta flights from Texas to Porto

Our best Delta deals on Texas to Porto flight tickets

Delta

Feb 2

AUS6:40 amAustin Bergstrom

21h 50m

2 stops

OPO10:30 amPorto

Feb 11

OPO11:15 amPorto

34h 55m

1 stop

AUS4:10 pmAustin Bergstrom

$481

Find similar

Delta

Feb 2

AUS6:10 pmAustin Bergstrom

15h 15m

1 stop

OPO3:25 pmPorto

Feb 13

OPO11:15 amPorto

34h 55m

1 stop

AUS4:10 pmAustin Bergstrom

$483

Find similar

Delta

Feb 6

AUS7:20 amAustin Bergstrom

21h 10m

2 stops

OPO10:30 amPorto

Feb 12

OPO6:35 amPorto

15h 35m

1 stop

AUS4:10 pmAustin Bergstrom

$487

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 12/11

6:05 pm-1:20 pm

1 stop13h 15m

Porto

Thu 12/25

6:35 am-4:10 pm

1 stop15h 35m

$480

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 2/2

6:40 am-10:30 am

2 stops21h 50m

Porto

Wed 2/11

11:15 am-4:10 pm

1 stop34h 55m

$481

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 2/2

11:30 am-12:05 pm

2 stops18h 35m

Porto

Tue 2/10

6:00 am-12:19 pm

2 stops36h 19m

$484

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 2/2

11:30 am-12:05 pm

2 stops18h 35m

Porto

Wed 2/11

6:00 am-12:19 pm

2 stops36h 19m

$485

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 1/13

1:00 pm-12:50 pm

2 stops17h 50m

Porto

Sun 1/18

6:00 am-8:49 pm

2 stops20h 49m

$486

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 2/3

4:10 pm-11:40 am

1 stop13h 30m

Porto

Tue 2/10

6:00 am-12:19 pm

2 stops36h 19m

$495

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 12/1

11:30 am-2:55 pm

2 stops21h 25m

Porto

Mon 12/8

6:00 am-12:04 pm

3 stops36h 04m

$498

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Fri 2/6

12:17 pm-11:40 am

2 stops17h 23m

Porto

Fri 2/13

6:00 am-8:44 pm

2 stops20h 44m

$504

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 3/16

10:36 am-9:30 am

1 stop17h 54m

Porto

Wed 3/25

4:15 pm-3:25 pm

1 stop28h 10m

$589

DallasPorto

DAL - OPO

DALOPO

Dallas Love Field

Tue 12/30

12:09 pm-10:30 am

2 stops16h 21m

Porto

Tue 1/27

6:05 am-5:51 pm

2 stops17h 46m

$591

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Texas 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

Prices

Airlines

Other information

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Texas, with most prices found around $507. If you aren’t able to travel during the month of January, then book flights to Porto from Texas 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 Texas 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 Texas 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 Texas 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 Texas for as low as $585 on momondo.

Can stopping save me money on Texas to Porto flights?

You could potentially save up to 11% on your flight if you consider stops on a Texas to Porto flight.

Cheap Texas to Porto flight deals and tips

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

Direct flights	None

There are no direct flights from Texas to Porto. There are no popular flight routes from Texas to Porto.

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When did momondo last update prices for flights from Texas to Porto Airport?
Prices for flights from Texas to Porto Airport were last updated today.
How many operators does momondo search for flights from Texas to Porto Airport?
As of November 2025, there are 6 operators available to choose from for flights from Texas to Porto Airport.
How old do you have to be to fly from Texas to Porto Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Texas 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 Texas to Porto

Compare and see reviews for airlines that fly from Texas to Porto with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $531	Free Cancellation	Rating 7.7 1,405 reviews	Search KLM flights
Delta	PriceFrom $534	Free Cancellation	Rating 7.9 8,004 reviews	Search Delta flights
American Airlines	PriceFrom $546	Free Cancellation	Rating 7.2 11,039 reviews	Search American Airlines flights
Iberia	PriceFrom $576	Free Cancellation	Rating 7.0 3,007 reviews	Search Iberia flights
United Airlines	PriceFrom $623	Free Cancellation	Rating 7.4 9,001 reviews	Search United Airlines flights
Lufthansa	PriceFrom $679	Free Cancellation	Rating 6.8 7,553 reviews	Search Lufthansa flights

Vila Nova de Gaia

Coimbra

Aveiro

Matosinhos

Braga

Lamego

Guimarães

Esposende

Chaves

Espinho

Viseu

Ponte de Lima

Arcos de Valdevez

Pinhao

Curia

Penafiel

Mesao Frio

Mira

Baiao

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Texas to Porto for you.

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

All flight searches from Texas to Porto on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Texas and Porto by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Texas 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.