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Cheap flights from Austin to Porto from $429

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 6/13. 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.
Multiple Airlines Logo
4:46 pm - 3:25 pm
AUS
-
OPO
16h 39m
2 stops
Multiple Airlines Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m
1 stop
$697Multiple Airlines
Tue, Apr 21 - Thu, May 7
Multiple Airlines Logo
4:46 pm - 3:25 pm
AUS
-
OPO
16h 39m
2 stops
Multiple Airlines Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m
1 stop
$698Multiple Airlines
Tue, Apr 21 - Thu, May 7
Multiple Airlines Logo
4:46 pm - 3:25 pm
AUS
-
OPO
16h 39m
2 stops
Multiple Airlines Logo
11:25 am - 12:31 am
OPO
-
AUS
19h 06m
2 stops
$707Multiple Airlines
Tue, Apr 21 - Thu, May 7
KLM Logo
6:15 pm - 3:30 pm
AUS
-
OPO
15h 15m
2 stops
KLM Logo
7:10 pm - 4:10 pm
OPO
-
AUS
27h 00m
1 stop
$732KLM
Tue, May 5 - Wed, May 20
British Airways Logo
10:30 pm - 8:05 pm
AUS
-
OPO
15h 35m
1 stop
British Airways Logo
8:20 am - 10:50 pm
OPO
-
AUS
20h 30m
2 stops
$740British Airways
Mon, May 4 - Wed, May 20
KLM Logo
6:15 pm - 3:30 pm
AUS
-
OPO
15h 15m
2 stops
KLM Logo
5:00 am - 6:30 pm
OPO
-
AUS
19h 30m
2 stops
$741KLM
Tue, May 5 - Wed, May 20
British Airways Logo
10:30 pm - 8:35 pm
AUS
-
OPO
16h 05m
1 stop
British Airways Logo
9:25 pm - 3:25 pm
OPO
-
AUS
24h 00m
1 stop
$743British Airways
Sun, Apr 12 - Mon, Apr 27
British Airways Logo
8:30 pm - 8:05 pm
AUS
-
OPO
17h 35m
2 stops
British Airways Logo
8:20 am - 10:50 pm
OPO
-
AUS
20h 30m
2 stops
$744British Airways
Mon, May 4 - Wed, May 20
British Airways Logo
6:45 pm - 8:35 pm
AUS
-
OPO
19h 50m
2 stops
British Airways Logo
9:25 pm - 3:25 pm
OPO
-
AUS
24h 00m
1 stop
$747British Airways
Sun, Apr 12 - Mon, Apr 27
Delta Logo
3:56 pm - 10:00 pm
AUS
-
OPO
24h 04m
2 stops
Delta Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m
1 stop
$748Delta
Mon, Apr 27 - Mon, May 4

KLM flights from Austin to Porto

Our best KLM deals on Austin to Porto flight tickets
KLM
May 5
AUS6:15 pmAustin Bergstrom
15h 15m
2 stops
OPO3:30 pmPorto
May 20
OPO7:10 pmPorto
27h 00m
1 stop
AUS4:10 pmAustin Bergstrom
$732
KLM
May 5
AUS6:15 pmAustin Bergstrom
15h 15m
2 stops
OPO3:30 pmPorto
May 20
OPO5:00 amPorto
19h 30m
2 stops
AUS6:30 pmAustin Bergstrom
$741
KLM
May 4
AUS6:05 pmAustin Bergstrom
22h 10m
1 stop
OPO10:15 pmPorto
May 20
OPO4:20 pmPorto
29h 50m
1 stop
AUS4:10 pmAustin Bergstrom
$754

British Airways flights from Austin to Porto

Our best British Airways deals on Austin to Porto flight tickets
British Airways
May 4
AUS10:30 pmAustin Bergstrom
15h 35m
1 stop
OPO8:05 pmPorto
May 20
OPO8:20 amPorto
20h 30m
2 stops
AUS10:50 pmAustin Bergstrom
$740
British Airways
Apr 12
AUS10:30 pmAustin Bergstrom
16h 05m
1 stop
OPO8:35 pmPorto
Apr 27
OPO9:25 pmPorto
24h 00m
1 stop
AUS3:25 pmAustin Bergstrom
$743
British Airways
May 4
AUS8:30 pmAustin Bergstrom
17h 35m
2 stops
OPO8:05 pmPorto
May 19
OPO12:25 pmPorto
16h 25m
2 stops
AUS10:50 pmAustin Bergstrom
$744

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 March 15, 2026.
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

Cheapest round-trip
Quickest round-trip

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

4:46 pm-3:25 pm

2 stops16h 39m

Porto

Thu 5/7

5:00 am-4:10 pm

1 stop17h 10m

$697

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

4:46 pm-3:25 pm

2 stops16h 39m

Porto

Thu 5/7

5:00 am-4:10 pm

1 stop17h 10m

$698

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

4:46 pm-3:25 pm

2 stops16h 39m

Porto

Thu 5/7

11:25 am-12:31 am

2 stops19h 06m

$707

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 5/5

6:15 pm-3:30 pm

2 stops15h 15m

Porto

Wed 5/20

7:10 pm-4:10 pm

1 stop27h 00m

$732

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 5/4

10:30 pm-8:05 pm

1 stop15h 35m

Porto

Wed 5/20

8:20 am-10:50 pm

2 stops20h 30m

$740

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 5/5

6:15 pm-3:30 pm

2 stops15h 15m

Porto

Wed 5/20

5:00 am-6:30 pm

2 stops19h 30m

$741

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Sun 4/12

10:30 pm-8:35 pm

1 stop16h 05m

Porto

Mon 4/27

9:25 pm-3:25 pm

1 stop24h 00m

$743

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 5/4

8:30 pm-8:05 pm

2 stops17h 35m

Porto

Wed 5/20

8:20 am-10:50 pm

2 stops20h 30m

$744

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Sun 4/12

6:45 pm-8:35 pm

2 stops19h 50m

Porto

Mon 4/27

9:25 pm-3:25 pm

1 stop24h 00m

$747

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 4/27

3:56 pm-10:00 pm

2 stops24h 04m

Porto

Mon 5/4

5:00 am-4:10 pm

1 stop17h 10m

$748

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 $672. 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 $730.

Can stopping save me money on Austin to Porto flights?

You could potentially save up to 33% 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

14h 35m

Direct flights

None
The fastest flight from Austin to Porto takes 14h 35m
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 14h 35m.

  • 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
7.8
1,471 reviews
Search KLM flights
DeltaPriceFrom $541Free CancellationRating
7.9
8,292 reviews
Search Delta flights
United AirlinesPriceFrom $589Free CancellationRating
7.4
9,428 reviews
Search United Airlines flights
LufthansaPriceFrom $668Free CancellationRating
6.8
7,850 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
Aveiro
Braga
Matosinhos
Esposende
Lamego
Chaves
Pinhao
Guimarães
Espinho
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 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.

An easier way to manage your Porto trip

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