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Cheap flights from Austin to Porto from $375

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 8/18. 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.
Lufthansa Logo
4:05 pm - 3:40 pm
AUS
-
OPO
17h 35m
1 stop
Lufthansa Logo
3:10 pm - 2:00 pm
OPO
-
AUS
28h 50m
1 stop
$887Lufthansa
Mon, May 4 - Mon, May 18
Lufthansa Logo
4:05 pm - 3:40 pm
AUS
-
OPO
17h 35m
1 stop
Lufthansa Logo
12:05 pm - 2:00 pm
OPO
-
AUS
31h 55m
1 stop
$900Lufthansa
Mon, May 4 - Tue, May 19
Multiple Airlines Logo
4:05 pm - 3:45 pm
AUS
-
OPO
17h 40m
1 stop
Multiple Airlines Logo
12:05 pm - 10:58 am
OPO
-
AUS
28h 53m
2 stops
$929Multiple Airlines
Tue, May 5 - Tue, May 12
Lufthansa Logo
8:45 am - 10:20 am
AUS
-
OPO
19h 35m
2 stops
Lufthansa Logo
4:35 pm - 2:00 pm
OPO
-
AUS
27h 25m
1 stop
$932Lufthansa
Mon, May 4 - Tue, May 19
KLM Logo
6:05 pm - 10:15 pm
AUS
-
OPO
22h 10m
1 stop
KLM Logo
11:45 am - 4:10 pm
OPO
-
AUS
34h 25m
1 stop
$935KLM
Mon, May 4 - Wed, May 20
Delta Logo
6:05 pm - 10:55 am
AUS
-
OPO
34h 50m
1 stop
Delta Logo
11:45 am - 4:10 pm
OPO
-
AUS
34h 25m
1 stop
$936Delta
Mon, May 4 - Wed, May 13
Delta Logo
11:53 am - 3:25 pm
AUS
-
OPO
21h 32m
2 stops
Delta Logo
5:00 am - 10:11 pm
OPO
-
AUS
23h 11m
2 stops
$937Delta
Mon, May 4 - Tue, May 19
Lufthansa Logo
4:05 pm - 4:50 pm
AUS
-
OPO
18h 45m
1 stop
Lufthansa Logo
12:05 pm - 2:00 pm
OPO
-
AUS
31h 55m
1 stop
$938Lufthansa
Wed, May 13 - Tue, May 19
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
$940KLM
Mon, May 4 - Wed, May 20
Delta Logo
2:00 pm - 3:25 pm
AUS
-
OPO
19h 25m
2 stops
Delta Logo
5:00 am - 10:35 pm
OPO
-
AUS
23h 35m
2 stops
$945Delta
Mon, May 4 - Wed, May 20

KLM flights from Austin to Porto

Our best KLM deals on Austin to Porto flight tickets
KLM
May 4
AUS6:05 pmAustin Bergstrom
22h 10m
1 stop
OPO10:15 pmPorto
May 20
OPO11:45 amPorto
34h 25m
1 stop
AUS4:10 pmAustin Bergstrom
$935
KLM
May 4
AUS6:15 pmAustin Bergstrom
15h 15m
2 stops
OPO3:30 pmPorto
May 20
OPO7:10 pmPorto
27h 00m
1 stop
AUS4:10 pmAustin Bergstrom
$940
KLM
Jul 6
AUS7:35 amAustin Bergstrom
20h 55m
1 stop
OPO10:30 amPorto
Jul 14
OPO12:25 pmPorto
14h 28m
1 stop
AUS8:53 pmAustin Bergstrom
$962

Delta flights from Austin to Porto

Our best Delta deals on Austin to Porto flight tickets
Delta
May 4
AUS6:05 pmAustin Bergstrom
34h 50m
1 stop
OPO10:55 amPorto
May 13
OPO11:45 amPorto
34h 25m
1 stop
AUS4:10 pmAustin Bergstrom
$936
Delta
May 4
AUS11:53 amAustin Bergstrom
21h 32m
2 stops
OPO3:25 pmPorto
May 19
OPO5:00 amPorto
23h 11m
2 stops
AUS10:11 pmAustin Bergstrom
$937
Delta
May 4
AUS2:00 pmAustin Bergstrom
19h 25m
2 stops
OPO3:25 pmPorto
May 20
OPO5:00 amPorto
23h 35m
2 stops
AUS10:35 pmAustin Bergstrom
$945

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 April 28, 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

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 5/4

4:05 pm-3:40 pm

1 stop17h 35m

Porto

Mon 5/18

3:10 pm-2:00 pm

1 stop28h 50m

$887

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 5/4

4:05 pm-3:40 pm

1 stop17h 35m

Porto

Tue 5/19

12:05 pm-2:00 pm

1 stop31h 55m

$900

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 5/5

4:05 pm-3:45 pm

1 stop17h 40m

Porto

Tue 5/12

12:05 pm-10:58 am

2 stops28h 53m

$929

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 5/4

8:45 am-10:20 am

2 stops19h 35m

Porto

Tue 5/19

4:35 pm-2:00 pm

1 stop27h 25m

$932

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 5/4

6:05 pm-10:15 pm

1 stop22h 10m

Porto

Wed 5/20

11:45 am-4:10 pm

1 stop34h 25m

$935

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 5/4

6:05 pm-10:55 am

1 stop34h 50m

Porto

Wed 5/13

11:45 am-4:10 pm

1 stop34h 25m

$936

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 5/4

11:53 am-3:25 pm

2 stops21h 32m

Porto

Tue 5/19

5:00 am-10:11 pm

2 stops23h 11m

$937

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 5/13

4:05 pm-4:50 pm

1 stop18h 45m

Porto

Tue 5/19

12:05 pm-2:00 pm

1 stop31h 55m

$938
Quickest round-trip

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 5/4

6:15 pm-3:30 pm

2 stops15h 15m

Porto

Wed 5/20

7:10 pm-4:10 pm

1 stop27h 00m

$940

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 5/4

2:00 pm-3:25 pm

2 stops19h 25m

Porto

Wed 5/20

5:00 am-10:35 pm

2 stops23h 35m

$945

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 March is, on average, the cheapest month to fly to Porto from Austin, with most prices found around $657. If you aren’t able to travel during the month of March, then book flights to Porto from Austin during February instead. Flights to Porto in February, while not as cheap as those in March, still average around $672.

Can stopping save me money on Austin to Porto flights?

You could potentially save up to 34% 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

12h 45m

Direct flights

None
The fastest flight from Austin to Porto takes 12h 45m
There are no direct flights from Austin to Porto. There are no popular flight routes from Austin to Porto.
Search flight deals

Frequently asked questions about flying from Austin to Porto

  • 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 12h 45m.

  • 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
1,510 reviews
Search KLM flights
DeltaPriceFrom $541Free CancellationRating
7.9
8,466 reviews
Search Delta flights
United AirlinesPriceFrom $589Free CancellationRating
7.4
9,675 reviews
Search United Airlines flights
LufthansaPriceFrom $668Free CancellationRating
6.8
7,956 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
Espinho
Arcos de Valdevez
Ponte de Lima
Viseu
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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