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Cheap flights from Austin to Porto from $250

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 4/26. 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
7:10 am - 9:45 am
AUS
-
OPO
20h 35m
2 stops
United Airlines Logo
6:00 am - 11:25 am
OPO
-
AUS
35h 25m
2 stops
$492United Airlines
Tue, Apr 21 - Thu, May 7
United Airlines Logo
12:15 pm - 9:45 am
AUS
-
OPO
15h 30m
2 stops
United Airlines Logo
6:00 am - 3:41 pm
OPO
-
AUS
39h 41m
2 stops
$497United Airlines
Tue, Apr 21 - Thu, May 7
Lufthansa Logo
10:50 am - 9:45 am
AUS
-
OPO
16h 55m
1 stop
Lufthansa Logo
6:00 am - 9:24 pm
OPO
-
AUS
21h 24m
2 stops
$605Lufthansa
Tue, Apr 21 - Thu, May 7
American Airlines Logo
4:44 pm - 4:00 pm
AUS
-
OPO
17h 16m
2 stops
American Airlines Logo
8:20 am - 10:50 pm
OPO
-
AUS
20h 30m
2 stops
$609American Airlines
Fri, May 1 - Tue, May 19
Lufthansa Logo
10:50 am - 9:45 am
AUS
-
OPO
16h 55m
1 stop
Lufthansa Logo
6:00 am - 9:24 pm
OPO
-
AUS
21h 24m
2 stops
$654Lufthansa
Tue, Apr 21 - Thu, May 7
Multiple Airlines Logo
9:55 am - 12:05 pm
AUS
-
OPO
20h 10m
2 stops
Multiple Airlines Logo
6:00 am - 12:19 pm
OPO
-
AUS
36h 19m
2 stops
$693Multiple Airlines
Fri, Feb 20 - Sat, Feb 28
American Airlines Logo
4:44 pm - 4:00 pm
AUS
-
OPO
17h 16m
2 stops
American Airlines Logo
12:25 pm - 10:50 pm
OPO
-
AUS
16h 25m
2 stops
$707American Airlines
Fri, May 1 - Tue, May 19
Lufthansa Logo
10:50 am - 9:45 am
AUS
-
OPO
16h 55m
1 stop
Lufthansa Logo
4:35 pm - 2:00 pm
OPO
-
AUS
27h 25m
1 stop
$711Lufthansa
Tue, Apr 21 - Thu, May 7
Lufthansa Logo
5:40 pm - 11:00 pm
AUS
-
OPO
23h 20m
2 stops
Lufthansa Logo
12:35 pm - 11:18 pm
OPO
-
AUS
16h 43m
1 stop
$740Lufthansa
Wed, May 6 - Sat, May 23
Air Canada Logo
10:25 am - 6:50 am
AUS
-
OPO
14h 25m
1 stop
Air Canada Logo
11:15 am - 2:40 pm
OPO
-
AUS
33h 25m
2 stops
$752Air Canada
Wed, Jun 3 - Thu, Jun 18

Air Canada flights from Austin to Porto

Our best Air Canada deals on Austin to Porto flight tickets
Air Canada
Jun 3
AUS10:25 amAustin Bergstrom
14h 25m
1 stop
OPO6:50 amPorto
Jun 18
OPO11:15 amPorto
33h 25m
2 stops
AUS2:40 pmAustin Bergstrom
$752
Air Canada
Jun 7
AUS6:45 amAustin Bergstrom
18h 05m
2 stops
OPO6:50 amPorto
Jun 23
OPO11:15 amPorto
33h 25m
2 stops
AUS2:40 pmAustin Bergstrom
$756
Air Canada
Jun 6
AUS7:44 pmAustin Bergstrom
29h 06m
2 stops
OPO6:50 amPorto
Jun 23
OPO11:15 amPorto
33h 25m
2 stops
AUS2:40 pmAustin Bergstrom
$762

United Airlines flights from Austin to Porto

Our best United Airlines deals on Austin to Porto flight tickets
United Airlines
Apr 21
AUS7:10 amAustin Bergstrom
20h 35m
2 stops
OPO9:45 amPorto
May 7
OPO6:00 amPorto
35h 25m
2 stops
AUS11:25 amAustin Bergstrom
$492
United Airlines
Apr 21
AUS12:15 pmAustin Bergstrom
15h 30m
2 stops
OPO9:45 amPorto
May 7
OPO6:00 amPorto
39h 41m
2 stops
AUS3:41 pmAustin Bergstrom
$497
United Airlines
Jul 25
AUS2:00 pmAustin Bergstrom
13h 45m
1 stop
OPO9:45 amPorto
Aug 4
OPO12:15 pmPorto
34h 10m
2 stops
AUS4:25 pmAustin Bergstrom
$753

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 January 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

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

7:10 am-9:45 am

2 stops20h 35m

Porto

Thu 5/7

6:00 am-11:25 am

2 stops35h 25m

$492

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

12:15 pm-9:45 am

2 stops15h 30m

Porto

Thu 5/7

6:00 am-3:41 pm

2 stops39h 41m

$497

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

10:50 am-9:45 am

1 stop16h 55m

Porto

Thu 5/7

6:00 am-9:24 pm

2 stops21h 24m

$605

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Fri 5/1

4:44 pm-4:00 pm

2 stops17h 16m

Porto

Tue 5/19

8:20 am-10:50 pm

2 stops20h 30m

$609

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

10:50 am-9:45 am

1 stop16h 55m

Porto

Thu 5/7

6:00 am-9:24 pm

2 stops21h 24m

$654

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Fri 2/20

9:55 am-12:05 pm

2 stops20h 10m

Porto

Sat 2/28

6:00 am-12:19 pm

2 stops36h 19m

$693

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Fri 5/1

4:44 pm-4:00 pm

2 stops17h 16m

Porto

Tue 5/19

12:25 pm-10:50 pm

2 stops16h 25m

$707

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

10:50 am-9:45 am

1 stop16h 55m

Porto

Thu 5/7

4:35 pm-2:00 pm

1 stop27h 25m

$711

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 5/6

5:40 pm-11:00 pm

2 stops23h 20m

Porto

Sat 5/23

12:35 pm-11:18 pm

1 stop16h 43m

$740

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 6/3

10:25 am-6:50 am

1 stop14h 25m

Porto

Thu 6/18

11:15 am-2:40 pm

2 stops33h 25m

$752

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 March instead. Flights to Porto in March, while not as cheap as those in February, still average around $691.

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

13h 45m

Direct flights

None
The fastest flight from Austin to Porto takes 13h 45m
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 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
7.7
1,443 reviews
Search KLM flights
DeltaPriceFrom $541Free CancellationRating
7.9
8,120 reviews
Search Delta flights
United AirlinesPriceFrom $623Free CancellationRating
7.4
9,205 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
Esposende
Lamego
Guimarães
Espinho
Chaves
Pinhao
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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