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Cheap flights from Porto to Austin from $526

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Austin departing on 9/17. 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

Find the cheapest flights from Porto to Austin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m
1 stop
Delta Logo
3:35 pm - 3:30 pm
AUS
-
OPO
17h 55m
2 stops
$1,073Delta
Sat, Jul 4 - Sun, Jul 12
Delta Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m
1 stop
Delta Logo
7:35 am - 10:25 am
AUS
-
OPO
20h 50m
1 stop
$1,077Delta
Sat, Jul 4 - Sun, Jul 12
Delta Logo
5:00 am - 7:00 pm
OPO
-
AUS
20h 00m
2 stops
Delta Logo
1:48 pm - 3:30 pm
AUS
-
OPO
19h 42m
2 stops
$1,078Delta
Sat, Jul 4 - Sun, Jul 12
KLM Logo
11:30 am - 12:18 am
OPO
-
AUS
18h 48m
2 stops
KLM Logo
6:05 pm - 10:15 pm
AUS
-
OPO
22h 10m
1 stop
$1,084KLM
Tue, Jul 21 - Sat, Aug 1
Multiple Airlines Logo
12:25 pm - 4:47 pm
OPO
-
AUS
34h 22m
1 stop
Multiple Airlines Logo
6:05 pm - 10:15 pm
AUS
-
OPO
22h 10m
1 stop
$1,098Multiple Airlines
Tue, Jul 21 - Sat, Aug 1
Iberia Logo
8:20 am - 10:18 pm
OPO
-
AUS
19h 58m
2 stops
Iberia Logo
6:20 pm - 4:00 pm
AUS
-
OPO
15h 40m
2 stops
$1,188Iberia
Tue, Jul 21 - Sat, Aug 1
British Airways Logo
7:55 pm - 7:16 pm
OPO
-
AUS
29h 21m
2 stops
British Airways Logo
7:48 pm - 8:35 pm
AUS
-
OPO
18h 47m
2 stops
$1,253British Airways
Sat, Jul 4 - Sun, Jul 12
United Airlines Logo
6:00 am - 8:35 pm
OPO
-
AUS
20h 35m
2 stops
United Airlines Logo
10:10 am - 9:45 am
AUS
-
OPO
17h 35m
1 stop
$1,325United Airlines
Sat, Jul 4 - Sun, Jul 12
United Airlines Logo
9:00 am - 11:58 pm
OPO
-
AUS
20h 58m
1 stop
United Airlines Logo
10:10 am - 9:45 am
AUS
-
OPO
17h 35m
1 stop
$1,331United Airlines
Sat, Jul 4 - Sun, Jul 12
Multiple Airlines Logo
6:00 am - 10:45 am
OPO
-
AUS
34h 45m
2 stops
Multiple Airlines Logo
7:10 am - 6:50 am
AUS
-
OPO
17h 40m
3 stops
$4,498Multiple Airlines
Sat, Jul 4 - Sun, Jul 12

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Delta flights from Porto to Austin

Our best Delta deals on Porto to Austin flight tickets
Delta
Jul 4
OPO5:00 amPorto
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
Jul 12
AUS3:35 pmAustin Bergstrom
17h 55m
2 stops
OPO3:30 pmPorto
$1,073
Delta
Jul 25
OPO5:00 amPorto
21h 53m
2 stops
AUS8:53 pmAustin Bergstrom
Jul 29
AUS3:45 pmAustin Bergstrom
17h 40m
2 stops
OPO3:25 pmPorto
$1,076
Delta
Jul 4
OPO5:00 amPorto
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
Jul 12
AUS7:35 amAustin Bergstrom
20h 50m
1 stop
OPO10:25 amPorto
$1,077

United Airlines flights from Porto to Austin

Our best United Airlines deals on Porto to Austin flight tickets
United Airlines
Jun 24
OPO8:55 amPorto
14h 01m
1 stop
AUS4:56 pmAustin Bergstrom
Jun 27
AUS10:05 amAustin Bergstrom
14h 50m
1 stop
OPO6:55 amPorto
$1,145
United Airlines
Jul 4
OPO6:00 amPorto
20h 35m
2 stops
AUS8:35 pmAustin Bergstrom
Jul 12
AUS10:10 amAustin Bergstrom
17h 35m
1 stop
OPO9:45 amPorto
$1,325
United Airlines
Jul 4
OPO9:00 amPorto
20h 58m
1 stop
AUS11:58 pmAustin Bergstrom
Jul 12
AUS10:10 amAustin Bergstrom
17h 35m
1 stop
OPO9:45 amPorto
$1,331

momondo Fare Finder

 
Customize your flight search to find flights from Porto to Austin 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 23, 2026.
Use the filters below to find and compare flights from Porto to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 7/4

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Sun 7/12

3:35 pm-3:30 pm

2 stops17h 55m

$1,073

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 7/4

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Sun 7/12

7:35 am-10:25 am

1 stop20h 50m

$1,077

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 7/4

5:00 am-7:00 pm

2 stops20h 00m

Austin Bergstrom

Sun 7/12

1:48 pm-3:30 pm

2 stops19h 42m

$1,078

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 7/21

11:30 am-12:18 am

2 stops18h 48m

Austin Bergstrom

Sat 8/1

6:05 pm-10:15 pm

1 stop22h 10m

$1,084

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 7/21

12:25 pm-4:47 pm

1 stop34h 22m

Austin Bergstrom

Sat 8/1

6:05 pm-10:15 pm

1 stop22h 10m

$1,098

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 7/21

8:20 am-10:18 pm

2 stops19h 58m

Austin Bergstrom

Sat 8/1

6:20 pm-4:00 pm

2 stops15h 40m

$1,188

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 7/4

7:55 pm-7:16 pm

2 stops29h 21m

Austin Bergstrom

Sun 7/12

7:48 pm-8:35 pm

2 stops18h 47m

$1,253

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 7/4

6:00 am-8:35 pm

2 stops20h 35m

Austin Bergstrom

Sun 7/12

10:10 am-9:45 am

1 stop17h 35m

$1,325

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 7/4

9:00 am-11:58 pm

1 stop20h 58m

Austin Bergstrom

Sun 7/12

10:10 am-9:45 am

1 stop17h 35m

$1,331

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 7/4

6:00 am-10:45 am

2 stops34h 45m

Austin Bergstrom

Sun 7/12

7:10 am-6:50 am

3 stops17h 40m

$4,498

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 Austin from

How to get the cheapest flight ticket from Porto to Austin

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

Can stopping save me money on Porto to Austin flights?

You could potentially save up to 67% on your flight if you consider stops on a Porto to Austin flight.

When to book flights from Porto to Austin

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Austin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Porto to Austin (OPO to AUS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Austin

Fastest flight time

14h 40m

Direct flights

None
The fastest flight from Porto to Austin takes 14h 40m
There are no direct flights from Porto to Austin. There are no popular flight routes from Porto to Austin.
Search flight deals

Frequently asked questions about flying from Porto to Austin

  • How far is Porto to Austin Bergstrom by plane?

    The straight-line distance from Porto to Austin Bergstrom is 4833.8 mi. By plane, this route typically takes 14h 40m.

  • When did momondo last update prices for flights from Porto Airport to Austin Bergstrom Airport?

    Prices for flights from Porto Airport to Austin Bergstrom Airport were last updated today.

  • How old do you have to be to fly from Porto Airport to Austin Bergstrom Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to Austin Bergstrom Airport.

  • What documentation or ID do you need to fly to Austin Bergstrom Airport?

    The required travel and health documents for your Austin Bergstrom Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Austin Bergstrom Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Fredericksburg
Wimberley
San Marcos
Round Rock
Cedar Park
Marble Falls
Georgetown
Horseshoe Bay
Canyon Lake
Dripping Springs
Seguin
Bastrop
Pflugerville
Kyle
Buda
Flatonia

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Austin?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Porto to Austin. momondo saves you time and could save you money on your trip.

Can I find flights from Porto to Austin with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Austin from Porto with this policy.

How can momondo help me find flights from Porto to Austin?

momondo provides multiple filters to help you find the best flight to Austin from Porto. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Porto to Austin right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Austin from Porto. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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