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Cheap flights from Porto to Austin from $580

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 6/16. 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 Porto to Austin

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 10:45 pm
OPO
-
AUS
22h 45m
2 stops
United Airlines Logo
4:10 pm - 9:30 am
AUS
-
OPO
11h 20m
1 stop
$860United Airlines
Wed, Feb 25 - Sun, Mar 1
KLM Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m
1 stop
KLM Logo
7:05 pm - 10:25 pm
AUS
-
OPO
22h 20m
1 stop
$866KLM
Sat, Feb 14 - Mon, Mar 9
KLM Logo
5:00 am - 9:42 pm
OPO
-
AUS
22h 42m
2 stops
KLM Logo
5:15 pm - 3:25 pm
AUS
-
OPO
17h 10m
2 stops
$872KLM
Sat, Feb 14 - Mon, Mar 9
United Airlines Logo
12:35 pm - 8:56 pm
OPO
-
AUS
14h 21m
1 stop
United Airlines Logo
4:10 pm - 9:30 am
AUS
-
OPO
11h 20m
1 stop
$884United Airlines
Wed, Feb 25 - Sun, Mar 1
Multiple Airlines Logo
1:55 pm - 4:04 pm
OPO
-
AUS
32h 09m
3 stops
Multiple Airlines Logo
6:10 am - 8:30 pm
AUS
-
OPO
33h 20m
3 stops
$1,186Multiple Airlines
Sat, Feb 14 - Mon, Mar 9
Multiple Airlines Logo
1:55 pm - 4:04 pm
OPO
-
AUS
32h 09m
3 stops
Multiple Airlines Logo
11:30 am - 5:00 pm
AUS
-
OPO
24h 30m
2 stops
$1,187Multiple Airlines
Sat, Feb 14 - Mon, Mar 9

American Airlines flights from Porto to Austin

Our best American Airlines deals on Porto to Austin flight tickets
American Airlines
Feb 6
OPO8:40 pmPorto
18h 56m
2 stops
AUS9:36 amAustin Bergstrom
Feb 9
AUS7:00 amAustin Bergstrom
22h 45m
2 stops
OPO11:45 amPorto
$936
American Airlines
Feb 6
OPO8:40 pmPorto
19h 47m
2 stops
AUS10:27 amAustin Bergstrom
Feb 9
AUS11:21 amAustin Bergstrom
18h 24m
2 stops
OPO11:45 amPorto
$937

United Airlines flights from Porto to Austin

Our best United Airlines deals on Porto to Austin flight tickets
United Airlines
Feb 25
OPO6:00 amPorto
22h 45m
2 stops
AUS10:45 pmAustin Bergstrom
Mar 1
AUS4:10 pmAustin Bergstrom
11h 20m
1 stop
OPO9:30 amPorto
$860
United Airlines
Feb 25
OPO12:35 pmPorto
14h 21m
1 stop
AUS8:56 pmAustin Bergstrom
Mar 1
AUS4:10 pmAustin Bergstrom
11h 20m
1 stop
OPO9:30 amPorto
$884

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 February 4, 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

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 2/25

6:00 am-10:45 pm

2 stops22h 45m

Austin Bergstrom

Sun 3/1

4:10 pm-9:30 am

1 stop11h 20m

$860

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 2/14

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Mon 3/9

7:05 pm-10:25 pm

1 stop22h 20m

$866

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 2/14

5:00 am-9:42 pm

2 stops22h 42m

Austin Bergstrom

Mon 3/9

5:15 pm-3:25 pm

2 stops17h 10m

$872

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 2/25

12:35 pm-8:56 pm

1 stop14h 21m

Austin Bergstrom

Sun 3/1

4:10 pm-9:30 am

1 stop11h 20m

$884

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 2/14

1:55 pm-4:04 pm

3 stops32h 09m

Austin Bergstrom

Mon 3/9

6:10 am-8:30 pm

3 stops33h 20m

$1,186

PortoAustin

OPO - AUS

OPOAUS

Porto

Sat 2/14

1:55 pm-4:04 pm

3 stops32h 09m

Austin Bergstrom

Mon 3/9

11:30 am-5:00 pm

2 stops24h 30m

$1,187

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 6/16

8:20 am-9:52 pm

2 stops19h 32m

$580

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 6/16

8:20 am-9:52 pm

2 stops19h 32m

$585

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 6/16

7:00 pm-4:10 pm

1 stop27h 10m

$877

PortoAustin

OPO - AUS

OPOAUS

Porto

Tue 6/16

7:00 pm-4:10 pm

1 stop27h 10m

$879

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 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 18% 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

22h 45m

Direct flights

None
The fastest flight from Porto to Austin takes 22h 45m
There are no direct flights from Porto to Austin. There are no popular flight routes from Porto to Austin.
Search flight deals

  • 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 22h 45m.

  • 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
Georgetown
Canyon Lake
Marble Falls
Cedar Park
Horseshoe Bay
Dripping Springs
Pflugerville
Kyle
Seguin
Bastrop
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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