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Cheap flights from Austin to Porto from $354

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 12/15. 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.
United Airlines Logo
6:00 am - 9:30 amAUS-OPO
21h 30m1 stop
United Airlines Logo
6:00 am - 8:41 pmOPO-AUS
20h 41m2 stops
$523United Airlines
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Mon, Nov 10 - Mon, Nov 24
Multiple Airlines Logo
1:41 pm - 10:30 amAUS-OPO
14h 49m2 stops
Multiple Airlines Logo
4:10 pm - 4:10 pmOPO-AUS
30h 00m1 stop
$531Multiple Airlines
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Wed, Nov 12 - Wed, Nov 19
KLM Logo
6:05 pm - 3:25 pmAUS-OPO
15h 20m1 stop
KLM Logo
6:35 am - 4:10 pmOPO-AUS
15h 35m1 stop
$532KLM
Find Deal
Thu, Nov 6 - Thu, Nov 13
United Airlines Logo
3:00 pm - 9:30 amAUS-OPO
12h 30m1 stop
United Airlines Logo
6:00 am - 8:41 pmOPO-AUS
20h 41m2 stops
$533United Airlines
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Fri, Nov 14 - Sat, Nov 22
Air Canada Logo
11:30 am - 12:05 pmAUS-OPO
18h 35m2 stops
Air Canada Logo
6:00 am - 12:19 pmOPO-AUS
36h 19m2 stops
$534Air Canada
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Thu, Dec 4 - Tue, Dec 9
Lufthansa Logo
12:59 pm - 11:40 pmAUS-OPO
28h 41m2 stops
Lufthansa Logo
6:00 am - 8:41 pmOPO-AUS
20h 41m2 stops
$535Lufthansa
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Wed, Nov 5 - Wed, Nov 12
Delta Logo
7:20 am - 10:30 amAUS-OPO
21h 10m2 stops
Delta Logo
6:30 am - 11:20 pmOPO-AUS
22h 50m2 stops
$541Delta
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Tue, Dec 2 - Mon, Dec 8
KLM Logo
6:05 pm - 3:25 pmAUS-OPO
15h 20m1 stop
KLM Logo
5:00 am - 7:13 pmOPO-AUS
20h 13m2 stops
$542KLM
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Thu, Dec 4 - Sun, Dec 7
Delta Logo
12:10 pm - 3:25 pmAUS-OPO
21h 15m2 stops
Delta Logo
6:05 am - 10:08 pmOPO-AUS
22h 03m2 stops
$547Delta
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Thu, Nov 6 - Tue, Nov 11
Lufthansa Logo
12:59 pm - 11:40 amAUS-OPO
16h 41m2 stops
Lufthansa Logo
12:30 pm - 2:15 pmOPO-AUS
31h 45m1 stop
$580Lufthansa
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Wed, Nov 19 - Wed, Nov 26

KLM flights from Austin to Porto

Our best KLM deals on Austin to Porto flight tickets
KLM
Nov 6
AUS6:05 pmAustin Bergstrom
15h 20m
1 stop
OPO3:25 pmPorto
Nov 13
OPO6:35 amPorto
15h 35m
1 stop
AUS4:10 pmAustin Bergstrom
$532
Find similar
KLM
Dec 4
AUS6:05 pmAustin Bergstrom
15h 20m
1 stop
OPO3:25 pmPorto
Dec 7
OPO5:00 amPorto
20h 13m
2 stops
AUS7:13 pmAustin Bergstrom
$542
Find similar
KLM
Nov 6
AUS6:27 pmAustin Bergstrom
14h 58m
2 stops
OPO3:25 pmPorto
Nov 11
OPO9:55 amPorto
20h 33m
2 stops
AUS12:28 amAustin Bergstrom
$622
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Lufthansa flights from Austin to Porto

Our best Lufthansa deals on Austin to Porto flight tickets
Lufthansa
Nov 5
AUS12:59 pmAustin Bergstrom
28h 41m
2 stops
OPO11:40 pmPorto
Nov 12
OPO6:00 amPorto
20h 41m
2 stops
AUS8:41 pmAustin Bergstrom
$535
Find similar
Lufthansa
Nov 19
AUS12:59 pmAustin Bergstrom
16h 41m
2 stops
OPO11:40 amPorto
Nov 26
OPO12:30 pmPorto
31h 45m
1 stop
AUS2:15 pmAustin Bergstrom
$580
Find similar
Lufthansa
Nov 14
AUS11:40 amAustin Bergstrom
15h 50m
1 stop
OPO9:30 amPorto
Nov 22
OPO12:30 pmPorto
31h 45m
1 stop
AUS2:15 pmAustin Bergstrom
$586
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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 October 9, 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

Mon 11/10

6:00 am-9:30 am

1 stop21h 30m

Porto

Mon 11/24

6:00 am-8:41 pm

2 stops20h 41m

$523

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 11/12

1:41 pm-10:30 am

2 stops14h 49m

Porto

Wed 11/19

4:10 pm-4:10 pm

1 stop30h 00m

$531

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 11/6

6:05 pm-3:25 pm

1 stop15h 20m

Porto

Thu 11/13

6:35 am-4:10 pm

1 stop15h 35m

$532

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Fri 11/14

3:00 pm-9:30 am

1 stop12h 30m

Porto

Sat 11/22

6:00 am-8:41 pm

2 stops20h 41m

$533

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 12/4

11:30 am-12:05 pm

2 stops18h 35m

Porto

Tue 12/9

6:00 am-12:19 pm

2 stops36h 19m

$534

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 11/5

12:59 pm-11:40 pm

2 stops28h 41m

Porto

Wed 11/12

6:00 am-8:41 pm

2 stops20h 41m

$535

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 12/2

7:20 am-10:30 am

2 stops21h 10m

Porto

Mon 12/8

6:30 am-11:20 pm

2 stops22h 50m

$541

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 12/4

6:05 pm-3:25 pm

1 stop15h 20m

Porto

Sun 12/7

5:00 am-7:13 pm

2 stops20h 13m

$542

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 11/6

12:10 pm-3:25 pm

2 stops21h 15m

Porto

Tue 11/11

6:05 am-10:08 pm

2 stops22h 03m

$547

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 11/19

12:59 pm-11:40 am

2 stops16h 41m

Porto

Wed 11/26

12:30 pm-2:15 pm

1 stop31h 45m

$580

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 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 $692. If you aren’t able to travel during the month of February, then book flights to Porto from Austin during November instead. Flights to Porto in November, while not as cheap as those in February, still average around $793.

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 8% 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

Direct flights

None
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 11h 20m.

  • 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 $597Free CancellationRating
7.7
1,399 reviews
Search KLM flights
United AirlinesPriceFrom $623Free CancellationRating
7.4
8,968 reviews
Search United Airlines flights
DeltaPriceFrom $662Free CancellationRating
7.9
7,969 reviews
Search Delta 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
Aveiro
Braga
Matosinhos
Caminha
Esposende
Lamego
Guimarães
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 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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