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Cheap flights from Texas to Porto from $324

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Texas to Porto departing on 11/3. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Texas to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:50 am - 12:50 pmIAH  Houston George Bush Intcntl-OPO Porto
19h 00m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss
Multiple Airlines Logo
6:00 am - 12:30 amOPO  Porto-IAH Houston George Bush Intcntl
24h 30m2 stops Frankfurt am Main Chicago O'Hare Intl
$701Multiple Airlines
Sun, Nov 8 - Fri, Nov 13
United Airlines Logo
11:00 am - 9:30 amIAH  Houston George Bush Intcntl-OPO Porto
16h 30m1 stop Newark
United Airlines Logo
6:00 am - 6:15 pmOPO  Porto-IAH Houston George Bush Intcntl
18h 15m1 stop Frankfurt am Main
$707United Airlines
Mon, Dec 7 - Fri, Dec 11
KLM Logo
7:10 pm - 10:00 pmIAH  Houston George Bush Intcntl-OPO Porto
20h 50m1 stop Paris Charles de Gaulle
KLM Logo
5:00 am - 1:05 pmOPO  Porto-IAH Houston George Bush Intcntl
14h 05m1 stop Amsterdam Schiphol
$709KLM
Sun, Nov 8 - Fri, Nov 13
Lufthansa Logo
4:10 pm - 11:45 amIAH  Houston George Bush Intcntl-OPO Porto
13h 35m1 stop Frankfurt am Main
Lufthansa Logo
6:00 am - 7:10 pmOPO  Porto-IAH Houston George Bush Intcntl
19h 10m2 stops Frankfurt am Main Chicago O'Hare Intl
$710Lufthansa
Sun, Nov 8 - Fri, Nov 13
United Airlines Logo
9:45 am - 9:30 amIAH  Houston George Bush Intcntl-OPO Porto
17h 45m2 stops Washington, D.C. Reagan-National Newark
United Airlines Logo
6:00 am - 6:15 pmOPO  Porto-IAH Houston George Bush Intcntl
18h 15m1 stop Frankfurt am Main
$711United Airlines
Mon, Dec 7 - Fri, Dec 11
Multiple Airlines Logo
11:50 am - 12:05 pmIAH  Houston George Bush Intcntl-OPO Porto
18h 15m2 stops Montreal Pierre Elliott Trudeau Intl Brussels Bruxelles-National
Multiple Airlines Logo
7:20 pm - 9:34 pmOPO  Porto-IAH Houston George Bush Intcntl
32h 14m2 stops Zurich Montreal Pierre Elliott Trudeau Intl
$719Multiple Airlines
Tue, Nov 24 - Mon, Dec 7
Delta Logo
6:09 am - 9:05 amHOU  Houston Hobby-OPO Porto
20h 56m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl
Delta Logo
5:00 am - 11:13 pmOPO  Porto-HOU Houston Hobby
24h 13m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$723Delta
Sun, Nov 8 - Fri, Nov 13
Delta Logo
11:25 am - 9:05 amAUS  Austin Bergstrom-OPO Porto
15h 40m1 stop New York John F Kennedy Intl
Delta Logo
5:00 am - 4:05 pmOPO  Porto-AUS Austin Bergstrom
17h 05m1 stop Amsterdam Schiphol
$733Delta
Wed, Nov 25 - Thu, Dec 3
KLM Logo
6:01 pm - 3:25 pmAUS  Austin Bergstrom-OPO Porto
15h 24m1 stop Amsterdam Schiphol
KLM Logo
5:00 am - 4:05 pmOPO  Porto-AUS Austin Bergstrom
17h 05m1 stop Amsterdam Schiphol
$737KLM
Mon, Nov 23 - Thu, Dec 3
Lufthansa Logo
2:25 pm - 9:30 amAUS  Austin Bergstrom-OPO Porto
13h 05m1 stop Newark
Lufthansa Logo
12:35 pm - 9:45 pmOPO  Porto-AUS Austin Bergstrom
15h 10m1 stop Newark
$780Lufthansa
Mon, Nov 23 - Tue, Dec 1

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Air Transat flights from Texas to Porto

Our best Air Transat deals on Texas to Porto flight tickets
Air Transat
Sep 20
AUS4:25 pmAustin Bergstrom
13h 20m
1 stop
OPO11:45 amPorto
Oct 5
OPO1:30 pmPorto
31h 55m
1 stop
AUS3:25 pmAustin Bergstrom
$838
Air Transat
Oct 16
AUS4:25 pmAustin Bergstrom
13h 20m
1 stop
OPO11:45 amPorto
Oct 24
OPO1:30 pmPorto
33h 10m
1 stop
AUS4:40 pmAustin Bergstrom
$861
Air Transat
Aug 13
AUS4:25 pmAustin Bergstrom
13h 20m
1 stop
OPO11:45 amPorto
Aug 17
OPO1:30 pmPorto
31h 55m
1 stop
AUS3:25 pmAustin Bergstrom
$1,133

KLM flights from Texas to Porto

Our best KLM deals on Texas to Porto flight tickets
KLM
Nov 8
IAH7:10 pmHouston George Bush Intcntl
20h 50m
1 stop
OPO10:00 pmPorto
Nov 13
OPO5:00 amPorto
14h 05m
1 stop
IAH1:05 pmHouston George Bush Intcntl
$709
KLM
Nov 23
AUS6:01 pmAustin Bergstrom
15h 24m
1 stop
OPO3:25 pmPorto
Dec 3
OPO5:00 amPorto
17h 05m
1 stop
AUS4:05 pmAustin Bergstrom
$737
KLM
Oct 16
IAH3:55 pmHouston George Bush Intcntl
17h 30m
1 stop
OPO3:25 pmPorto
Oct 20
OPO5:00 amPorto
14h 20m
1 stop
IAH1:20 pmHouston George Bush Intcntl
$868

momondo Fare Finder

 
Customize your flight search to find flights from Texas 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 August 10, 2026.
Use the filters below to find and compare flights from Texas to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Sun 11/8

11:50 am-12:50 pm

2 stops19h 00m

Porto

Fri 11/13

6:00 am-12:30 am

2 stops24h 30m

$701

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Mon 12/7

11:00 am-9:30 am

1 stop16h 30m

Porto

Fri 12/11

6:00 am-6:15 pm

1 stop18h 15m

$707

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Sun 11/8

7:10 pm-10:00 pm

1 stop20h 50m

Porto

Fri 11/13

5:00 am-1:05 pm

1 stop14h 05m

$709

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Sun 11/8

4:10 pm-11:45 am

1 stop13h 35m

Porto

Fri 11/13

6:00 am-7:10 pm

2 stops19h 10m

$710

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Mon 12/7

9:45 am-9:30 am

2 stops17h 45m

Porto

Fri 12/11

6:00 am-6:15 pm

1 stop18h 15m

$711

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Tue 11/24

11:50 am-12:05 pm

2 stops18h 15m

Porto

Mon 12/7

7:20 pm-9:34 pm

2 stops32h 14m

$719

HoustonPorto

HOU Houston Hobby - OPO Porto

HOUOPO

Houston Hobby

Sun 11/8

6:09 am-9:05 am

2 stops20h 56m

Porto

Fri 11/13

5:00 am-11:13 pm

2 stops24h 13m

$723

AustinPorto

AUS Austin Bergstrom - OPO Porto

AUSOPO

Austin Bergstrom

Wed 11/25

11:25 am-9:05 am

1 stop15h 40m

Porto

Thu 12/3

5:00 am-4:05 pm

1 stop17h 05m

$733

AustinPorto

AUS Austin Bergstrom - OPO Porto

AUSOPO

Austin Bergstrom

Mon 11/23

6:01 pm-3:25 pm

1 stop15h 24m

Porto

Thu 12/3

5:00 am-4:05 pm

1 stop17h 05m

$737
Quickest round-trip

AustinPorto

AUS Austin Bergstrom - OPO Porto

AUSOPO

Austin Bergstrom

Mon 11/23

2:25 pm-9:30 am

1 stop13h 05m

Porto

Tue 12/1

12:35 pm-9:45 pm

1 stop15h 10m

$780

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

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

What is the cheapest month to fly to Porto?

The month of March is, on average, the cheapest month to fly to Porto from Texas, with most prices found around $697. If you aren’t able to travel during the month of March, then book flights to Porto from Texas during January instead. Flights to Porto in January, while not as cheap as those in March, still average around $704.

Can stopping save me money on Texas to Porto flights?

You could potentially save up to 1% 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

Fastest flight time

12h 53m

Direct flights

None
The fastest flight from Texas to Porto takes 12h 53m
There are no direct flights from Texas to Porto. There are no popular flight routes from Texas to Porto.
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Frequently asked questions about flying from Texas to Porto

  • 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?

  • 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
KLMPriceFrom $476Free CancellationRating
7.8
1,556 reviews
Search KLM flights
DeltaPriceFrom $478Free CancellationRating
7.8
8,505 reviews
Search Delta flights
United AirlinesPriceFrom $581Free CancellationRating
7.4
10,102 reviews
Search United Airlines flights
IberiaPriceFrom $584Free CancellationRating
7.0
3,263 reviews
Search Iberia flights
American AirlinesPriceFrom $593Free CancellationRating
7.1
11,902 reviews
Search American Airlines flights
Turkish AirlinesPriceFrom $653Free CancellationRating
7.4
4,480 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $672Free CancellationRating
6.8
8,177 reviews
Search Lufthansa 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
Braga
Aveiro
Matosinhos
Pinhao
Esposende
Lamego
Chaves
Arcos de Valdevez
Guimarães
Viseu
Espinho
Ponte de Lima
Mesao Frio
Penafiel
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.

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