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Cheap flights from Portugal to Austin from $422

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

Recent round-trip flight deals from Portugal to Austin

Enter your travel dates to find the best prices.
Air Transat Logo
1:30 pm - 3:25 pmOPO  Porto-AUS Austin Bergstrom
31h 55m1 stop Toronto Pearson Intl
Air Transat Logo
4:25 pm - 11:45 amAUS  Austin Bergstrom-OPO Porto
13h 20m1 stop Toronto Pearson Intl
$778Air Transat
Thu, Sep 10 - Mon, Sep 14
Air Transat Logo
11:35 am - 3:25 pmLIS  Lisbon Humberto Delgado-AUS Austin Bergstrom
33h 50m1 stop Toronto Pearson Intl
Air Transat Logo
5:40 pm - 6:45 amAUS  Austin Bergstrom-LIS Lisbon Humberto Delgado
32h 05m1 stop Toronto Pearson Intl
$800Air Transat
Mon, Oct 12 - Tue, Oct 27
Air Transat Logo
11:35 am - 3:25 pmLIS  Lisbon Humberto Delgado-AUS Austin Bergstrom
33h 50m1 stop Toronto Pearson Intl
Air Transat Logo
5:40 pm - 6:45 amAUS  Austin Bergstrom-LIS Lisbon Humberto Delgado
32h 05m1 stop Toronto Pearson Intl
$802Air Transat
Sun, Oct 11 - Tue, Oct 27
Air Transat Logo
1:30 pm - 3:25 pmOPO  Porto-AUS Austin Bergstrom
31h 55m1 stop Toronto Pearson Intl
Air Transat Logo
4:25 pm - 11:45 amAUS  Austin Bergstrom-OPO Porto
13h 20m1 stop Toronto Pearson Intl
$815Air Transat
Thu, Sep 10 - Mon, Sep 14
Air Transat Logo
11:35 am - 3:25 pmLIS  Lisbon Humberto Delgado-AUS Austin Bergstrom
33h 50m1 stop Toronto Pearson Intl
Air Transat Logo
5:40 pm - 6:45 amAUS  Austin Bergstrom-LIS Lisbon Humberto Delgado
32h 05m1 stop Toronto Pearson Intl
$819Air Transat
Sun, Oct 11 - Tue, Oct 27
Air Transat Logo
11:35 am - 3:25 pmLIS  Lisbon Humberto Delgado-AUS Austin Bergstrom
33h 50m1 stop Toronto Pearson Intl
Air Transat Logo
4:25 pm - 7:45 amAUS  Austin Bergstrom-LIS Lisbon Humberto Delgado
33h 20m1 stop Toronto Pearson Intl
$829Air Transat
Thu, Oct 8 - Fri, Oct 23
Iberia Logo
8:20 am - 10:50 pmOPO  Porto-AUS Austin Bergstrom
19h 30m2 stops Madrid Barajas Miami
Iberia Logo
5:10 pm - 4:00 pmAUS  Austin Bergstrom-OPO Porto
16h 50m2 stops Miami Madrid Barajas
$925Iberia
Wed, Oct 28 - Wed, Nov 4
Multiple Airlines Logo
12:30 pm - 10:35 pmLIS  Lisbon Humberto Delgado-AUS Austin Bergstrom
16h 05m2 stops Madrid Barajas Dallas/Fort Worth
Multiple Airlines Logo
7:25 am - 9:05 amAUS  Austin Bergstrom-LIS Lisbon Humberto Delgado
19h 40m1 stop Philadelphia
$927Multiple Airlines
Fri, Sep 4 - Sun, Sep 20
Iberia Logo
6:35 am - 10:43 pmLIS  Lisbon Humberto Delgado-AUS Austin Bergstrom
22h 08m2 stops Madrid Barajas Dallas/Fort Worth
Iberia Logo
2:56 pm - 9:05 amAUS  Austin Bergstrom-LIS Lisbon Humberto Delgado
12h 09m1 stop Philadelphia
$929Iberia
Thu, Oct 8 - Fri, Oct 23
Multiple Airlines Logo
6:45 am - 10:48 amLIS  Lisbon Humberto Delgado-AUS Austin Bergstrom
34h 03m3 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Multiple Airlines Logo
4:25 pm - 11:05 amAUS  Austin Bergstrom-LIS Lisbon Humberto Delgado
12h 40m1 stop Toronto Pearson Intl
$932Multiple Airlines
Tue, Oct 6 - Thu, Oct 15

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Air Transat flights from Portugal to Austin

Our best Air Transat deals on Portugal to Austin flight tickets
Air Transat
Sep 10
OPO1:30 pmPorto
31h 55m
1 stop
AUS3:25 pmAustin Bergstrom
Sep 14
AUS4:25 pmAustin Bergstrom
13h 20m
1 stop
OPO11:45 amPorto
$778
Air Transat
Oct 12
LIS11:35 amLisbon Humberto Delgado
33h 50m
1 stop
AUS3:25 pmAustin Bergstrom
Oct 27
AUS5:40 pmAustin Bergstrom
32h 05m
1 stop
LIS6:45 amLisbon Humberto Delgado
$800
Air Transat
Oct 11
LIS11:35 amLisbon Humberto Delgado
33h 50m
1 stop
AUS3:25 pmAustin Bergstrom
Oct 27
AUS5:40 pmAustin Bergstrom
32h 05m
1 stop
LIS6:45 amLisbon Humberto Delgado
$802

United Airlines flights from Portugal to Austin

Our best United Airlines deals on Portugal to Austin flight tickets
United Airlines
Nov 14
OPO6:00 amPorto
20h 58m
2 stops
AUS8:58 pmAustin Bergstrom
Nov 17
AUS2:25 pmAustin Bergstrom
13h 05m
1 stop
OPO9:30 amPorto
$962
United Airlines
Nov 14
OPO6:00 amPorto
20h 58m
2 stops
AUS8:58 pmAustin Bergstrom
Nov 17
AUS2:25 pmAustin Bergstrom
13h 05m
1 stop
OPO9:30 amPorto
$965
United Airlines
Oct 29
OPO6:00 amPorto
18h 04m
2 stops
AUS7:04 pmAustin Bergstrom
Nov 4
AUS10:22 amAustin Bergstrom
17h 08m
1 stop
OPO9:30 amPorto
$966

momondo Fare Finder

 
Customize your flight search to find flights from Portugal 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 August 18, 2026.
Use the filters below to find and compare flights from Portugal to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Thu 9/10

1:30 pm-3:25 pm

1 stop31h 55m

Austin Bergstrom

Mon 9/14

4:25 pm-11:45 am

1 stop13h 20m

$778

LisbonAustin

LIS Lisbon Humberto Delgado - AUS Austin Bergstrom

LISAUS

Lisbon Humberto Delgado

Mon 10/12

11:35 am-3:25 pm

1 stop33h 50m

Austin Bergstrom

Tue 10/27

5:40 pm-6:45 am

1 stop32h 05m

$800

LisbonAustin

LIS Lisbon Humberto Delgado - AUS Austin Bergstrom

LISAUS

Lisbon Humberto Delgado

Sun 10/11

11:35 am-3:25 pm

1 stop33h 50m

Austin Bergstrom

Tue 10/27

5:40 pm-6:45 am

1 stop32h 05m

$802

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Thu 9/10

1:30 pm-3:25 pm

1 stop31h 55m

Austin Bergstrom

Mon 9/14

4:25 pm-11:45 am

1 stop13h 20m

$815

LisbonAustin

LIS Lisbon Humberto Delgado - AUS Austin Bergstrom

LISAUS

Lisbon Humberto Delgado

Sun 10/11

11:35 am-3:25 pm

1 stop33h 50m

Austin Bergstrom

Tue 10/27

5:40 pm-6:45 am

1 stop32h 05m

$819

LisbonAustin

LIS Lisbon Humberto Delgado - AUS Austin Bergstrom

LISAUS

Lisbon Humberto Delgado

Thu 10/8

11:35 am-3:25 pm

1 stop33h 50m

Austin Bergstrom

Fri 10/23

4:25 pm-7:45 am

1 stop33h 20m

$829

PortoAustin

OPO Porto - AUS Austin Bergstrom

OPOAUS

Porto

Wed 10/28

8:20 am-10:50 pm

2 stops19h 30m

Austin Bergstrom

Wed 11/4

5:10 pm-4:00 pm

2 stops16h 50m

$925

LisbonAustin

LIS Lisbon Humberto Delgado - AUS Austin Bergstrom

LISAUS

Lisbon Humberto Delgado

Fri 9/4

12:30 pm-10:35 pm

2 stops16h 05m

Austin Bergstrom

Sun 9/20

7:25 am-9:05 am

1 stop19h 40m

$927
Quickest round-trip

LisbonAustin

LIS Lisbon Humberto Delgado - AUS Austin Bergstrom

LISAUS

Lisbon Humberto Delgado

Thu 10/8

6:35 am-10:43 pm

2 stops22h 08m

Austin Bergstrom

Fri 10/23

2:56 pm-9:05 am

1 stop12h 09m

$929

LisbonAustin

LIS Lisbon Humberto Delgado - AUS Austin Bergstrom

LISAUS

Lisbon Humberto Delgado

Tue 10/6

6:45 am-10:48 am

3 stops34h 03m

Austin Bergstrom

Thu 10/15

4:25 pm-11:05 am

1 stop12h 40m

$932

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 Portugal 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

What is the cheapest month to fly to Austin?

The cheapest month to fly to Austin from Portugal is in May. Flight prices, which tend to average around $724, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in May, then February is your next best option. Flight prices from Portugal to Austin during February average around $740.

Can stopping save me money on Portugal to Austin flights?

You could potentially save up to 27% on your flight if you consider stops on a Portugal to Austin flight.

Cheap Portugal to Austin flight deals and tips

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

Best Price Found

$422

Fastest flight time

17h 02m

Direct flights

None
The best one-way flight to Austin from Portugal in the past 72 hours is $422. The best round-trip flight deal from Portugal to Austin found on momondo in the last 72 hours is $778.
The fastest flight from Portugal to Austin takes 17h 02m
There are no direct flights from Portugal to Austin. There are no popular flight routes from Portugal to Austin.
Search flight deals

Frequently asked questions about flying from Portugal to Austin

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

    Prices for flights from Portugal to Austin Bergstrom Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Portugal 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 Portugal 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
Seguin
Dripping Springs
Horseshoe Bay
Bastrop
Kyle
Pflugerville
Canyon Lake
Buda
Flatonia

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Austin from Portugal which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Portugal and Austin by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Portugal to Austin now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Austin and let you know when they change.

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