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Cheap flights from Texas to Porto from $297

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 9/21. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Texas to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:35 pm - 9:30 am
IAH
-
OPO
13h 55m
1 stop
United Airlines Logo
6:00 am - 6:15 pm
OPO
-
IAH
18h 15m
1 stop
$707United Airlines
Mon, Dec 7 - Thu, Dec 10
KLM Logo
4:05 pm - 10:35 am
IAH
-
OPO
12h 30m
1 stop
KLM Logo
5:00 am - 1:05 pm
OPO
-
IAH
14h 05m
1 stop
$708KLM
Sun, Nov 8 - Fri, Nov 13
United Airlines Logo
9:45 am - 9:30 am
IAH
-
OPO
17h 45m
2 stops
United Airlines Logo
6:00 am - 6:15 pm
OPO
-
IAH
18h 15m
1 stop
$711United Airlines
Mon, Dec 7 - Thu, Dec 10
Delta Logo
8:15 am - 10:35 am
IAH
-
OPO
20h 20m
2 stops
Delta Logo
5:00 am - 1:05 pm
OPO
-
IAH
14h 05m
1 stop
$712Delta
Sun, Nov 8 - Fri, Nov 13
Multiple Airlines Logo
8:34 pm - 9:30 am
IAH
-
OPO
30h 56m
2 stops
Multiple Airlines Logo
6:00 am - 1:01 am
OPO
-
IAH
25h 01m
2 stops
$721Multiple Airlines
Sun, Nov 8 - Fri, Nov 13
Delta Logo
10:05 am - 9:05 am
HOU
-
OPO
17h 00m
2 stops
Delta Logo
5:00 am - 9:43 pm
OPO
-
HOU
22h 43m
2 stops
$723Delta
Sun, Nov 8 - Fri, Nov 13
Air Transat Logo
4:25 pm - 11:45 am
AUS
-
OPO
13h 20m
1 stop
Air Transat Logo
1:30 pm - 3:25 pm
OPO
-
AUS
31h 55m
1 stop
$729Air Transat
Mon, Sep 14 - Mon, Sep 21
American Airlines Logo
9:28 am - 7:40 am
IAH
-
OPO
16h 12m
2 stops
American Airlines Logo
12:25 pm - 12:30 am
OPO
-
IAH
18h 05m
2 stops
$729American Airlines
Sun, Nov 8 - Fri, Nov 13
Multiple Airlines Logo
7:40 am - 9:30 am
AUS
-
OPO
19h 50m
1 stop
Multiple Airlines Logo
12:35 pm - 2:05 pm
OPO
-
AUS
31h 30m
1 stop
$751Multiple Airlines
Mon, Nov 9 - Mon, Nov 23
American Airlines Logo
10:11 am - 7:40 am
HOU
-
OPO
15h 29m
2 stops
American Airlines Logo
8:40 pm - 9:40 am
OPO
-
HOU
19h 00m
2 stops
$779American Airlines
Sun, Nov 8 - Fri, Nov 13

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KLM flights from Texas to Porto

Our best KLM deals on Texas to Porto flight tickets
KLM
Nov 8
IAH4:05 pmHouston George Bush Intcntl
12h 30m
1 stop
OPO10:35 amPorto
Nov 13
OPO5:00 amPorto
14h 05m
1 stop
IAH1:05 pmHouston George Bush Intcntl
$708
KLM
Oct 16
IAH3:55 pmHouston George Bush Intcntl
17h 30m
1 stop
OPO3:25 pmPorto
Oct 21
OPO11:45 amPorto
31h 30m
1 stop
IAH1:15 pmHouston George Bush Intcntl
$814
KLM
Oct 5
AUS11:20 amAustin Bergstrom
17h 10m
1 stop
OPO10:30 amPorto
Oct 9
OPO8:15 pmPorto
25h 55m
1 stop
AUS4:10 pmAustin Bergstrom
$853

Delta flights from Texas to Porto

Our best Delta deals on Texas to Porto flight tickets
Delta
Nov 8
IAH8:15 amHouston George Bush Intcntl
20h 20m
2 stops
OPO10:35 amPorto
Nov 13
OPO5:00 amPorto
14h 05m
1 stop
IAH1:05 pmHouston George Bush Intcntl
$712
Delta
Nov 8
HOU10:05 amHouston Hobby
17h 00m
2 stops
OPO9:05 amPorto
Nov 13
OPO5:00 amPorto
22h 43m
2 stops
HOU9:43 pmHouston Hobby
$723
Delta
Nov 17
AUS8:00 amAustin Bergstrom
20h 35m
2 stops
OPO10:35 amPorto
Nov 24
OPO5:00 amPorto
23h 05m
2 stops
AUS10:05 pmAustin Bergstrom
$746

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 June 28, 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 - OPO

IAHOPO

Houston George Bush Intcntl

Mon 12/7

1:35 pm-9:30 am

1 stop13h 55m

Porto

Thu 12/10

6:00 am-6:15 pm

1 stop18h 15m

$707
Quickest round-trip

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sun 11/8

4:05 pm-10:35 am

1 stop12h 30m

Porto

Fri 11/13

5:00 am-1:05 pm

1 stop14h 05m

$708

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Mon 12/7

9:45 am-9:30 am

2 stops17h 45m

Porto

Thu 12/10

6:00 am-6:15 pm

1 stop18h 15m

$711

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sun 11/8

8:15 am-10:35 am

2 stops20h 20m

Porto

Fri 11/13

5:00 am-1:05 pm

1 stop14h 05m

$712

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sun 11/8

8:34 pm-9:30 am

2 stops30h 56m

Porto

Fri 11/13

6:00 am-1:01 am

2 stops25h 01m

$721

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 11/8

10:05 am-9:05 am

2 stops17h 00m

Porto

Fri 11/13

5:00 am-9:43 pm

2 stops22h 43m

$723

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 9/14

4:25 pm-11:45 am

1 stop13h 20m

Porto

Mon 9/21

1:30 pm-3:25 pm

1 stop31h 55m

$729

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Sun 11/8

9:28 am-7:40 am

2 stops16h 12m

Porto

Fri 11/13

12:25 pm-12:30 am

2 stops18h 05m

$729

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 11/9

7:40 am-9:30 am

1 stop19h 50m

Porto

Mon 11/23

12:35 pm-2:05 pm

1 stop31h 30m

$751

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 11/8

10:11 am-7:40 am

2 stops15h 29m

Porto

Fri 11/13

8:40 pm-9:40 am

2 stops19h 00m

$779

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 $442. If you aren’t able to travel during the month of March, then book flights to Porto from Texas during April instead. Flights to Porto in April, while not as cheap as those in March, still average around $484.

Can stopping save me money on Texas to Porto flights?

You could potentially save up to 13% 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

11h 55m

Direct flights

None
The fastest flight from Texas to Porto takes 11h 55m
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
1,531 reviews
Search KLM flights
United AirlinesPriceFrom $492Free CancellationRating
7.4
9,896 reviews
Search United Airlines flights
DeltaPriceFrom $541Free CancellationRating
7.8
8,450 reviews
Search Delta flights
IberiaPriceFrom $584Free CancellationRating
7.0
3,247 reviews
Search Iberia flights
American AirlinesPriceFrom $593Free CancellationRating
7.1
11,772 reviews
Search American Airlines flights
Turkish AirlinesPriceFrom $653Free CancellationRating
7.4
4,427 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $672Free CancellationRating
6.8
8,108 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
Lamego
Esposende
Chaves
Pinhao
Guimarães
Arcos de Valdevez
Espinho
Ponte de Lima
Viseu
Curia
Mesao Frio
Penafiel
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.

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