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Cheap flights from Austin to Porto from $337

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Porto departing on 5/11. 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 Austin to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:20 am - 10:25 am
AUS
-
OPO
21h 05m2 stops
Delta Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m1 stop
$483Delta
Thu, Jan 29 - Thu, Feb 5
Delta Logo
6:05 pm - 3:25 pm
AUS
-
OPO
15h 20m1 stop
Delta Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m1 stop
$484Delta
Thu, Jan 15 - Thu, Jan 22
KLM Logo
6:05 pm - 1:20 pm
AUS
-
OPO
13h 15m1 stop
KLM Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m1 stop
$485KLM
Thu, Jan 15 - Thu, Jan 22
Delta Logo
8:45 am - 10:30 am
AUS
-
OPO
19h 45m2 stops
Delta Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m1 stop
$489Delta
Thu, Jan 15 - Thu, Jan 22
KLM Logo
6:05 pm - 1:20 pm
AUS
-
OPO
13h 15m1 stop
KLM Logo
5:00 am - 7:45 pm
OPO
-
AUS
20h 45m2 stops
$490KLM
Thu, Jan 15 - Thu, Jan 22
Delta Logo
6:40 am - 10:25 am
AUS
-
OPO
21h 45m2 stops
Delta Logo
5:00 am - 10:55 pm
OPO
-
AUS
23h 55m2 stops
$493Delta
Thu, Jan 29 - Thu, Feb 5
Delta Logo
7:20 am - 10:30 am
AUS
-
OPO
21h 10m2 stops
Delta Logo
5:00 am - 5:29 pm
OPO
-
AUS
18h 29m2 stops
$499Delta
Thu, Jan 15 - Thu, Jan 22
Iberia Logo
11:21 am - 11:45 am
AUS
-
OPO
18h 24m2 stops
Iberia Logo
8:40 pm - 9:39 pm
OPO
-
AUS
30h 59m2 stops
$511Iberia
Thu, Jan 15 - Thu, Jan 22
Multiple Airlines Logo
11:30 am - 7:00 pm
AUS
-
OPO
25h 30m3 stops
Multiple Airlines Logo
6:35 am - 9:27 pm
OPO
-
AUS
20h 52m2 stops
$597Multiple Airlines
Thu, Jan 15 - Thu, Jan 22
United Airlines Logo
6:30 am - 2:45 pm
AUS
-
OPO
26h 15m3 stops
United Airlines Logo
6:00 am - 9:35 pm
OPO
-
AUS
21h 35m2 stops
$606United Airlines
Thu, Jan 29 - Thu, Feb 5

Delta flights from Austin to Porto

Our best Delta deals on Austin to Porto flight tickets
Delta
Jan 29
AUS7:20 amAustin Bergstrom
21h 05m
2 stops
OPO10:25 amPorto
Feb 5
OPO5:00 amPorto
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
$483
Find similar
Delta
Jan 15
AUS6:05 pmAustin Bergstrom
15h 20m
1 stop
OPO3:25 pmPorto
Jan 22
OPO5:00 amPorto
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
$484
Find similar
Delta
Jan 15
AUS8:45 amAustin Bergstrom
19h 45m
2 stops
OPO10:30 amPorto
Jan 22
OPO5:00 amPorto
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
$489
Find similar

KLM flights from Austin to Porto

Our best KLM deals on Austin to Porto flight tickets
KLM
Jan 15
AUS6:05 pmAustin Bergstrom
13h 15m
1 stop
OPO1:20 pmPorto
Jan 22
OPO5:00 amPorto
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
$485
Find similar
KLM
Jan 15
AUS6:05 pmAustin Bergstrom
13h 15m
1 stop
OPO1:20 pmPorto
Jan 22
OPO5:00 amPorto
20h 45m
2 stops
AUS7:45 pmAustin Bergstrom
$490
Find similar
KLM
Mar 12
AUS7:05 pmAustin Bergstrom
34h 25m
1 stop
OPO10:30 amPorto
Apr 2
OPO5:00 amPorto
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
$872
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Austin 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 December 15, 2025.
Use the filters below to find and compare flights from Austin to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/29

7:20 am-10:25 am

2 stops21h 05m

Porto

Thu 2/5

5:00 am-4:10 pm

1 stop17h 10m

$483

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/15

6:05 pm-3:25 pm

1 stop15h 20m

Porto

Thu 1/22

5:00 am-4:10 pm

1 stop17h 10m

$484

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/15

6:05 pm-1:20 pm

1 stop13h 15m

Porto

Thu 1/22

5:00 am-4:10 pm

1 stop17h 10m

$485

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/15

8:45 am-10:30 am

2 stops19h 45m

Porto

Thu 1/22

5:00 am-4:10 pm

1 stop17h 10m

$489

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/15

6:05 pm-1:20 pm

1 stop13h 15m

Porto

Thu 1/22

5:00 am-7:45 pm

2 stops20h 45m

$490

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/29

6:40 am-10:25 am

2 stops21h 45m

Porto

Thu 2/5

5:00 am-10:55 pm

2 stops23h 55m

$493

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/15

7:20 am-10:30 am

2 stops21h 10m

Porto

Thu 1/22

5:00 am-5:29 pm

2 stops18h 29m

$499

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/15

11:21 am-11:45 am

2 stops18h 24m

Porto

Thu 1/22

8:40 pm-9:39 pm

2 stops30h 59m

$511

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/15

11:30 am-7:00 pm

3 stops25h 30m

Porto

Thu 1/22

6:35 am-9:27 pm

2 stops20h 52m

$597

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 1/29

6:30 am-2:45 pm

3 stops26h 15m

Porto

Thu 2/5

6:00 am-9:35 pm

2 stops21h 35m

$606

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 Austin 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 typical price of a round-trip flight between Austin and Porto?

What is the cheapest month to fly to Porto?

The month of February is, on average, the cheapest month to fly to Porto from Austin, with most prices found around $601. If you aren’t able to travel during the month of February, then book flights to Porto from Austin during March instead. Flights to Porto in March, while not as cheap as those in February, still average around $691.

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 Wednesday when prices can be found for as low as $988. 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 Sunday because tickets tend to average around $1,303. 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?

At noon is the cheapest time of day to fly from Austin to Porto when you can find flight prices for as low as $1,012. Flying to Porto at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,381 on average. Flights to Porto from Austin in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Austin to Porto flights?

You could potentially save up to 14% on your flight if you consider stops on a Austin to Porto flight.

When to book flights from Austin to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Austin to Porto (AUS to OPO) flight deals and tips

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

Fastest flight time

13h 15m

Direct flights

None
The fastest flight from Austin to Porto takes 13h 15m
There are no direct flights from Austin to Porto. There are no popular flight routes from Austin to Porto.
Search flight deals

  • How far is Austin Bergstrom to Porto by plane?

    Austin Bergstrom and Porto are 4833.8 mi apart from one another. In terms of flight time, this usually takes a little over 13h 15m.

  • When did momondo last update prices for flights from Austin Bergstrom Airport to Porto Airport?

    Prices for flights from Austin Bergstrom Airport to Porto Airport are updated daily.

  • How many operators does momondo search for flights from Austin Bergstrom Airport to Porto Airport?

  • How old do you have to be to fly from Austin Bergstrom Airport 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 Austin Bergstrom Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The travel and health documents you'll need for your trip to Porto Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Porto Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Austin to Porto?

Best airlines flying from Austin to Porto

Compare and see reviews for airlines that fly from Austin to Porto with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $531Free CancellationRating
7.7
1,430 reviews
Search KLM flights
DeltaPriceFrom $541Free CancellationRating
7.9
8,008 reviews
Search Delta flights
United AirlinesPriceFrom $624Free CancellationRating
7.4
9,092 reviews
Search United Airlines 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
Guimarães
Esposende
Lamego
Chaves
Viseu
Espinho
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 Austin to Porto?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Austin to Porto. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Porto from Austin with this policy.

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

momondo provides multiple filters to help you find the best flight to Porto from Austin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Austin 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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