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Cheap flights from Texas to Porto from $299

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 3/4. 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 Texas to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:10 am - 9:45 am
AUS
-
OPO
20h 35m
2 stops
United Airlines Logo
6:00 am - 3:41 pm
OPO
-
AUS
39h 41m
2 stops
$497United Airlines
Tue, Apr 21 - Thu, May 7
Delta Logo
11:45 am - 10:30 am
AUS
-
OPO
16h 45m
2 stops
Delta Logo
5:00 am - 9:44 pm
OPO
-
AUS
21h 44m
2 stops
$500Delta
Wed, Mar 4 - Thu, Mar 12
KLM Logo
3:50 pm - 3:25 pm
IAH
-
OPO
17h 35m
1 stop
KLM Logo
5:00 am - 1:15 pm
OPO
-
IAH
14h 15m
1 stop
$550KLM
Tue, Apr 7 - Wed, Apr 15
Iberia Logo
2:43 pm - 11:45 am
AUS
-
OPO
16h 02m
2 stops
Iberia Logo
8:40 pm - 11:06 pm
OPO
-
AUS
32h 26m
2 stops
$559Iberia
Tue, Mar 24 - Tue, Mar 31
American Airlines Logo
6:45 pm - 4:00 pm
AUS
-
OPO
15h 15m
2 stops
American Airlines Logo
12:25 pm - 10:50 pm
OPO
-
AUS
16h 25m
2 stops
$570American Airlines
Sun, May 3 - Tue, May 12
American Airlines Logo
10:50 am - 11:45 am
IAH
-
OPO
18h 55m
2 stops
American Airlines Logo
8:20 am - 11:59 pm
OPO
-
IAH
21h 39m
2 stops
$571American Airlines
Wed, Apr 22 - Wed, May 6
British Airways Logo
10:30 pm - 8:20 pm
AUS
-
OPO
15h 50m
1 stop
British Airways Logo
12:25 pm - 10:50 pm
OPO
-
AUS
16h 25m
2 stops
$581British Airways
Sun, May 3 - Tue, May 12
Iberia Logo
9:45 pm - 8:00 pm
DFW
-
OPO
16h 15m
1 stop
Iberia Logo
8:20 am - 8:10 pm
OPO
-
DFW
17h 50m
1 stop
$585Iberia
Tue, Apr 28 - Thu, May 7
KLM Logo
3:20 pm - 10:15 pm
IAH
-
OPO
24h 55m
1 stop
KLM Logo
7:10 pm - 1:15 pm
OPO
-
IAH
24h 05m
1 stop
$594KLM
Wed, Apr 22 - Wed, May 6
British Airways Logo
10:30 pm - 8:20 pm
AUS
-
OPO
15h 50m
1 stop
British Airways Logo
8:40 pm - 3:25 pm
OPO
-
AUS
24h 45m
1 stop
$616British Airways
Sun, May 3 - Tue, May 12

KLM flights from Texas to Porto

Our best KLM deals on Texas to Porto flight tickets
KLM
Apr 7
IAH3:50 pmHouston George Bush Intcntl
17h 35m
1 stop
OPO3:25 pmPorto
Apr 15
OPO5:00 amPorto
14h 15m
1 stop
IAH1:15 pmHouston George Bush Intcntl
$550
KLM
Apr 22
IAH3:20 pmHouston George Bush Intcntl
24h 55m
1 stop
OPO10:15 pmPorto
May 6
OPO7:10 pmPorto
24h 05m
1 stop
IAH1:15 pmHouston George Bush Intcntl
$594
KLM
Apr 22
IAH3:20 pmHouston George Bush Intcntl
18h 10m
1 stop
OPO3:30 pmPorto
May 6
OPO5:00 amPorto
18h 42m
2 stops
IAH5:42 pmHouston George Bush Intcntl
$604

Iberia flights from Texas to Porto

Our best Iberia deals on Texas to Porto flight tickets
Iberia
Mar 24
AUS2:43 pmAustin Bergstrom
16h 02m
2 stops
OPO11:45 amPorto
Mar 31
OPO8:40 pmPorto
32h 26m
2 stops
AUS11:06 pmAustin Bergstrom
$559
Iberia
Apr 28
DFW9:45 pmDallas/Fort Worth
16h 15m
1 stop
OPO8:00 pmPorto
May 7
OPO8:20 amPorto
17h 50m
1 stop
DFW8:10 pmDallas/Fort Worth
$585
Iberia
May 5
DFW9:45 pmDallas/Fort Worth
16h 15m
1 stop
OPO8:00 pmPorto
May 12
OPO8:20 amPorto
17h 50m
1 stop
DFW8:10 pmDallas/Fort Worth
$616

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 February 8, 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

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

7:10 am-9:45 am

2 stops20h 35m

Porto

Thu 5/7

6:00 am-3:41 pm

2 stops39h 41m

$497

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 3/4

11:45 am-10:30 am

2 stops16h 45m

Porto

Thu 3/12

5:00 am-9:44 pm

2 stops21h 44m

$500

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Tue 4/7

3:50 pm-3:25 pm

1 stop17h 35m

Porto

Wed 4/15

5:00 am-1:15 pm

1 stop14h 15m

$550

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 3/24

2:43 pm-11:45 am

2 stops16h 02m

Porto

Tue 3/31

8:40 pm-11:06 pm

2 stops32h 26m

$559

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Sun 5/3

6:45 pm-4:00 pm

2 stops15h 15m

Porto

Tue 5/12

12:25 pm-10:50 pm

2 stops16h 25m

$570

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Wed 4/22

10:50 am-11:45 am

2 stops18h 55m

Porto

Wed 5/6

8:20 am-11:59 pm

2 stops21h 39m

$571

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Sun 5/3

10:30 pm-8:20 pm

1 stop15h 50m

Porto

Tue 5/12

12:25 pm-10:50 pm

2 stops16h 25m

$581

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 4/28

9:45 pm-8:00 pm

1 stop16h 15m

Porto

Thu 5/7

8:20 am-8:10 pm

1 stop17h 50m

$585

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Wed 4/22

3:20 pm-10:15 pm

1 stop24h 55m

Porto

Wed 5/6

7:10 pm-1:15 pm

1 stop24h 05m

$594

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Sun 5/3

10:30 pm-8:20 pm

1 stop15h 50m

Porto

Tue 5/12

8:40 pm-3:25 pm

1 stop24h 45m

$616

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 December is, on average, the cheapest month to fly to Porto from Texas, with most prices found around $618. If you aren’t able to travel during the month of December, then book flights to Porto from Texas during August instead. Flights to Porto in August, while not as cheap as those in December, still average around $701.

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 $823 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 $703 on momondo.

Can stopping save me money on Texas to Porto flights?

You could potentially save up to 9% 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

13h 00m

Direct flights

None
The fastest flight from Texas to Porto takes 13h 00m
There are no direct flights from Texas to Porto. There are no popular flight routes from Texas to Porto.
Search flight deals

  • 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
7.7
1,450 reviews
Search KLM flights
DeltaPriceFrom $541Free CancellationRating
7.9
8,172 reviews
Search Delta flights
American AirlinesPriceFrom $546Free CancellationRating
7.2
11,252 reviews
Search American Airlines flights
IberiaPriceFrom $565Free CancellationRating
7.0
3,108 reviews
Search Iberia flights
United AirlinesPriceFrom $589Free CancellationRating
7.4
9,256 reviews
Search United Airlines flights
LufthansaPriceFrom $668Free CancellationRating
6.8
7,773 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
Esposende
Lamego
Guimarães
Espinho
Chaves
Pinhao
Arcos de Valdevez
Viseu
Ponte de Lima
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.

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