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Cheap flights from Austin to Porto from $462

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 7/21. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Austin to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
8:00 am - 10:35 am
AUS
-
OPO
20h 35m
2 stops
Delta Logo
5:00 am - 4:05 pm
OPO
-
AUS
17h 05m
1 stop
$737Delta
Tue, Nov 3 - Thu, Nov 12
Delta Logo
1:40 pm - 10:35 am
AUS
-
OPO
14h 55m
2 stops
Delta Logo
5:00 am - 5:39 pm
OPO
-
AUS
18h 39m
2 stops
$747Delta
Tue, Nov 3 - Thu, Nov 12
Multiple Airlines Logo
3:55 pm - 10:25 pm
AUS
-
OPO
24h 30m
1 stop
Multiple Airlines Logo
12:35 pm - 10:24 am
OPO
-
AUS
27h 49m
1 stop
$771Multiple Airlines
Tue, Nov 3 - Thu, Nov 12
United Airlines Logo
6:45 pm - 9:45 am
AUS
-
OPO
33h 00m
2 stops
United Airlines Logo
12:15 pm - 8:19 pm
OPO
-
AUS
38h 04m
2 stops
$795United Airlines
Sat, Sep 26 - Tue, Oct 6
Multiple Airlines Logo
7:15 am - 7:00 am
AUS
-
OPO
17h 45m
2 stops
Multiple Airlines Logo
8:40 am - 10:48 am
OPO
-
AUS
32h 08m
2 stops
$805Multiple Airlines
Wed, Oct 7 - Fri, Oct 16
Delta Logo
2:05 pm - 3:25 pm
AUS
-
OPO
19h 20m
2 stops
Delta Logo
5:00 am - 5:39 pm
OPO
-
AUS
18h 39m
2 stops
$807Delta
Wed, Oct 7 - Fri, Oct 16
Delta Logo
3:35 pm - 3:25 pm
AUS
-
OPO
17h 50m
2 stops
Delta Logo
12:45 pm - 9:49 pm
OPO
-
AUS
15h 04m
1 stop
$814Delta
Wed, Oct 7 - Fri, Oct 16
Delta Logo
3:35 pm - 3:25 pm
AUS
-
OPO
17h 50m
2 stops
Delta Logo
12:45 pm - 9:49 pm
OPO
-
AUS
15h 04m
1 stop
$815Delta
Wed, Oct 7 - Fri, Oct 16
Multiple Airlines Logo
3:13 pm - 9:45 am
AUS
-
OPO
36h 32m
2 stops
Multiple Airlines Logo
12:05 pm - 2:00 pm
OPO
-
AUS
31h 55m
1 stop
$834Multiple Airlines
Sat, Sep 26 - Tue, Oct 6
United Airlines Logo
6:17 pm - 7:10 am
AUS
-
OPO
30h 53m
2 stops
United Airlines Logo
11:50 am - 7:57 pm
OPO
-
AUS
38h 07m
3 stops
$854United Airlines
Thu, Sep 17 - Thu, Sep 24

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Air Canada flights from Austin to Porto

Our best Air Canada deals on Austin to Porto flight tickets
Air Canada
Nov 22
AUS1:10 pmAustin Bergstrom
40h 35m
2 stops
OPO11:45 amPorto
Nov 27
OPO6:00 amPorto
36h 19m
2 stops
AUS12:19 pmAustin Bergstrom
$762
Air Canada
Aug 4
AUS10:25 amAustin Bergstrom
14h 35m
1 stop
OPO7:00 amPorto
Aug 22
OPO11:20 amPorto
14h 52m
1 stop
AUS8:12 pmAustin Bergstrom
$902
Air Canada
Aug 4
AUS10:25 amAustin Bergstrom
14h 35m
1 stop
OPO7:00 amPorto
Aug 22
OPO11:20 amPorto
30h 29m
2 stops
AUS11:49 amAustin Bergstrom
$909

KLM flights from Austin to Porto

Our best KLM deals on Austin to Porto flight tickets
KLM
Nov 22
AUS3:35 pmAustin Bergstrom
11h 30m
1 stop
OPO9:05 amPorto
Nov 27
OPO11:15 amPorto
19h 17m
2 stops
AUS12:32 amAustin Bergstrom
$773
KLM
Sep 21
AUS7:30 amAustin Bergstrom
21h 00m
1 stop
OPO10:30 amPorto
Sep 28
OPO12:15 pmPorto
14h 37m
1 stop
AUS8:52 pmAustin Bergstrom
$871
KLM
Oct 7
AUS11:20 amAustin Bergstrom
17h 10m
1 stop
OPO10:30 amPorto
Oct 16
OPO12:45 pmPorto
15h 04m
1 stop
AUS9:49 pmAustin Bergstrom
$941

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 June 18, 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

Tue 11/3

8:00 am-10:35 am

2 stops20h 35m

Porto

Thu 11/12

5:00 am-4:05 pm

1 stop17h 05m

$737

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 11/3

1:40 pm-10:35 am

2 stops14h 55m

Porto

Thu 11/12

5:00 am-5:39 pm

2 stops18h 39m

$747

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 11/3

3:55 pm-10:25 pm

1 stop24h 30m

Porto

Thu 11/12

12:35 pm-10:24 am

1 stop27h 49m

$771

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Sat 9/26

6:45 pm-9:45 am

2 stops33h 00m

Porto

Tue 10/6

12:15 pm-8:19 pm

2 stops38h 04m

$795

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 10/7

7:15 am-7:00 am

2 stops17h 45m

Porto

Fri 10/16

8:40 am-10:48 am

2 stops32h 08m

$805

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 10/7

2:05 pm-3:25 pm

2 stops19h 20m

Porto

Fri 10/16

5:00 am-5:39 pm

2 stops18h 39m

$807
Quickest round-trip

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 10/7

3:35 pm-3:25 pm

2 stops17h 50m

Porto

Fri 10/16

12:45 pm-9:49 pm

1 stop15h 04m

$814

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 10/7

3:35 pm-3:25 pm

2 stops17h 50m

Porto

Fri 10/16

12:45 pm-9:49 pm

1 stop15h 04m

$815

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Sat 9/26

3:13 pm-9:45 am

2 stops36h 32m

Porto

Tue 10/6

12:05 pm-2:00 pm

1 stop31h 55m

$834

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 9/17

6:17 pm-7:10 am

2 stops30h 53m

Porto

Thu 9/24

11:50 am-7:57 pm

3 stops38h 07m

$854

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 $672. 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 $752.

Can stopping save me money on Austin to Porto flights?

You could potentially save up to 26% on your flight if you consider stops on a Austin to Porto flight.

How have Austin to Porto flight prices changed over time?

As of June 2026, prices for Austin to Porto flights are approximately 49% cheaper when compared to flights at the same time last year.

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

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 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
1,530 reviews
Search KLM flights
DeltaPriceFrom $541Free CancellationRating
7.8
8,416 reviews
Search Delta flights
United AirlinesPriceFrom $581Free CancellationRating
7.4
9,860 reviews
Search United Airlines flights
LufthansaPriceFrom $668Free CancellationRating
6.8
8,075 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
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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