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Cheap flights from Portugal to Austin from $435

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 10/8. 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 pm
OPO
-
AUS
31h 55m
1 stop
Air Transat Logo
4:25 pm - 11:45 am
AUS
-
OPO
13h 20m
1 stop
$755Air Transat
Mon, Aug 24 - Sun, Aug 30
Air Transat Logo
1:30 pm - 3:25 pm
OPO
-
AUS
31h 55m
1 stop
Air Transat Logo
4:25 pm - 11:45 am
AUS
-
OPO
13h 20m
1 stop
$756Air Transat
Mon, Aug 24 - Fri, Aug 28
Air Canada Logo
11:25 am - 8:12 pm
LIS
-
AUS
14h 47m
1 stop
Air Canada Logo
11:40 am - 11:05 am
AUS
-
LIS
17h 25m
1 stop
$892Air Canada
Thu, Aug 27 - Wed, Sep 9
Air Canada Logo
11:25 am - 8:12 pm
LIS
-
AUS
14h 47m
1 stop
Air Canada Logo
11:40 am - 9:20 am
AUS
-
LIS
15h 40m
2 stops
$894Air Canada
Thu, Aug 27 - Wed, Sep 9
Iberia Logo
8:20 am - 8:55 pm
LIS
-
AUS
18h 35m
2 stops
Iberia Logo
1:15 pm - 9:05 am
AUS
-
LIS
13h 50m
1 stop
$897Iberia
Mon, Dec 21 - Mon, Jan 11
Iberia Logo
7:45 am - 9:01 pm
LIS
-
AUS
19h 16m
2 stops
Iberia Logo
2:40 pm - 9:05 am
AUS
-
LIS
12h 25m
1 stop
$900Iberia
Sun, Nov 1 - Sun, Nov 15
Multiple Airlines Logo
12:30 pm - 11:58 pm
LIS
-
AUS
17h 28m
2 stops
Multiple Airlines Logo
9:30 am - 9:05 am
AUS
-
LIS
17h 35m
1 stop
$902Multiple Airlines
Thu, Aug 27 - Wed, Sep 9
Multiple Airlines Logo
6:05 pm - 10:48 am
LIS
-
AUS
22h 43m
1 stop
Multiple Airlines Logo
9:00 am - 9:20 am
AUS
-
LIS
42h 20m
2 stops
$906Multiple Airlines
Thu, Oct 8 - Mon, Oct 12
United Airlines Logo
12:10 pm - 2:00 pm
OPO
-
AUS
31h 50m
1 stop
United Airlines Logo
7:30 am - 9:45 am
AUS
-
OPO
20h 15m
2 stops
$949United Airlines
Mon, Aug 24 - Sun, Aug 30
United Airlines Logo
12:10 pm - 2:00 pm
OPO
-
AUS
31h 50m
1 stop
United Airlines Logo
7:30 am - 6:55 am
AUS
-
OPO
17h 25m
2 stops
$953United Airlines
Mon, Aug 24 - Sun, Aug 30

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Iberia flights from Portugal to Austin

Our best Iberia deals on Portugal to Austin flight tickets
Iberia
Dec 21
LIS8:20 amLisbon Humberto Delgado
18h 35m
2 stops
AUS8:55 pmAustin Bergstrom
Jan 11
AUS1:15 pmAustin Bergstrom
13h 50m
1 stop
LIS9:05 amLisbon Humberto Delgado
$897
Iberia
Nov 1
LIS7:45 amLisbon Humberto Delgado
19h 16m
2 stops
AUS9:01 pmAustin Bergstrom
Nov 15
AUS2:40 pmAustin Bergstrom
12h 25m
1 stop
LIS9:05 amLisbon Humberto Delgado
$900
Iberia
Dec 21
LIS8:20 amLisbon Humberto Delgado
18h 35m
2 stops
AUS8:55 pmAustin Bergstrom
Jan 11
AUS1:15 pmAustin Bergstrom
13h 50m
1 stop
LIS9:05 amLisbon Humberto Delgado
$901

United Airlines flights from Portugal to Austin

Our best United Airlines deals on Portugal to Austin flight tickets
United Airlines
Nov 1
LIS5:00 amLisbon Humberto Delgado
15h 05m
1 stop
AUS3:05 pmAustin Bergstrom
Nov 15
AUS6:00 amAustin Bergstrom
20h 10m
1 stop
LIS8:10 amLisbon Humberto Delgado
$942
United Airlines
Nov 1
LIS5:00 amLisbon Humberto Delgado
15h 05m
1 stop
AUS3:05 pmAustin Bergstrom
Nov 15
AUS6:00 amAustin Bergstrom
20h 10m
1 stop
LIS8:10 amLisbon Humberto Delgado
$943
United Airlines
Dec 21
LIS5:00 amLisbon Humberto Delgado
18h 29m
2 stops
AUS5:29 pmAustin Bergstrom
Jan 11
AUS7:00 amAustin Bergstrom
19h 10m
2 stops
LIS8:10 amLisbon Humberto Delgado
$946

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 July 5, 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 - AUS

OPOAUS

Porto

Mon 8/24

1:30 pm-3:25 pm

1 stop31h 55m

Austin Bergstrom

Sun 8/30

4:25 pm-11:45 am

1 stop13h 20m

$755

PortoAustin

OPO - AUS

OPOAUS

Porto

Mon 8/24

1:30 pm-3:25 pm

1 stop31h 55m

Austin Bergstrom

Fri 8/28

4:25 pm-11:45 am

1 stop13h 20m

$756

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Thu 8/27

11:25 am-8:12 pm

1 stop14h 47m

Austin Bergstrom

Wed 9/9

11:40 am-11:05 am

1 stop17h 25m

$892
Quickest round-trip

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Thu 8/27

11:25 am-8:12 pm

1 stop14h 47m

Austin Bergstrom

Wed 9/9

11:40 am-9:20 am

2 stops15h 40m

$894

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Mon 12/21

8:20 am-8:55 pm

2 stops18h 35m

Austin Bergstrom

Mon 1/11

1:15 pm-9:05 am

1 stop13h 50m

$897

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Sun 11/1

7:45 am-9:01 pm

2 stops19h 16m

Austin Bergstrom

Sun 11/15

2:40 pm-9:05 am

1 stop12h 25m

$900

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Thu 8/27

12:30 pm-11:58 pm

2 stops17h 28m

Austin Bergstrom

Wed 9/9

9:30 am-9:05 am

1 stop17h 35m

$902

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Thu 10/8

6:05 pm-10:48 am

1 stop22h 43m

Austin Bergstrom

Mon 10/12

9:00 am-9:20 am

2 stops42h 20m

$906

PortoAustin

OPO - AUS

OPOAUS

Porto

Mon 8/24

12:10 pm-2:00 pm

1 stop31h 50m

Austin Bergstrom

Sun 8/30

7:30 am-9:45 am

2 stops20h 15m

$949

PortoAustin

OPO - AUS

OPOAUS

Porto

Mon 8/24

12:10 pm-2:00 pm

1 stop31h 50m

Austin Bergstrom

Sun 8/30

7:30 am-6:55 am

2 stops17h 25m

$953

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 December. Flight prices, which tend to average around $355, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in December, then October is your next best option. Flight prices from Portugal to Austin during October average around $588.

Can stopping save me money on Portugal to Austin flights?

You could potentially save up to 10% 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

Fastest flight time

17h 28m

Direct flights

None
The fastest flight from Portugal to Austin takes 17h 28m
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
Canyon Lake
Horseshoe Bay
Dripping Springs
Seguin
Kyle
Bastrop
Pflugerville
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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