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Cheap flights from Portugal to Austin from $405

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 1/10. 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 Portugal to Austin

Recent round-trip flight deals from Portugal to Austin

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:35 am - 12:08 pmOPO-AUS
35h 33m3 stops
Multiple Airlines Logo
10:35 am - 8:40 pmAUS-OPO
28h 05m3 stops
$815Multiple Airlines
Find Deal
Thu, Dec 11 - Sat, Jan 10
United Airlines Logo
6:00 am - 10:29 pmOPO-AUS
22h 29m2 stops
United Airlines Logo
2:00 pm - 9:45 amAUS-OPO
13h 45m1 stop
$816United Airlines
Find Deal
Thu, Apr 23 - Thu, Apr 30
Multiple Airlines Logo
6:35 am - 12:08 pmOPO-AUS
35h 33m3 stops
Multiple Airlines Logo
10:35 am - 11:50 amAUS-OPO
19h 15m2 stops
$817Multiple Airlines
Find Deal
Thu, Dec 11 - Sat, Jan 10
Lufthansa Logo
6:00 am - 8:44 pmOPO-AUS
20h 44m2 stops
Lufthansa Logo
4:10 pm - 2:45 pmAUS-OPO
16h 35m1 stop
$823Lufthansa
Find Deal
Fri, Feb 13 - Tue, Feb 17
Delta Logo
11:15 am - 12:28 amOPO-AUS
19h 13m2 stops
Delta Logo
6:10 pm - 10:25 pmAUS-OPO
22h 15m1 stop
$829Delta
Find Deal
Thu, Dec 11 - Sat, Jan 10
Delta Logo
5:00 am - 4:10 pmLIS-AUS
17h 10m1 stop
Delta Logo
7:25 am - 8:00 amAUS-LIS
18h 35m1 stop
$829Delta
Find Deal
Sat, Nov 22 - Sat, Nov 29
Scandinavian Airlines Logo
4:55 pm - 9:27 pmLIS-AUS
34h 32m2 stops
Scandinavian Airlines Logo
12:34 pm - 8:55 amAUS-LIS
38h 21m2 stops
$834Scandinavian Airlines
Find Deal
Sun, Jan 11 - Thu, Jan 15
Lufthansa Logo
11:55 am - 8:41 pmLIS-AUS
14h 46m1 stop
Lufthansa Logo
11:20 am - 8:10 amAUS-LIS
14h 50m1 stop
$838Lufthansa
Find Deal
Thu, Dec 11 - Sat, Jan 10
American Airlines Logo
10:55 am - 10:22 pmLIS-AUS
17h 27m1 stop
American Airlines Logo
6:55 pm - 6:55 pmAUS-LIS
18h 00m1 stop
$839American Airlines
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Thu, Feb 5 - Mon, Feb 9
American Airlines Logo
10:55 am - 10:22 pmLIS-AUS
17h 27m1 stop
American Airlines Logo
6:55 pm - 2:55 pmAUS-LIS
14h 00m1 stop
$840American Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 9

Lufthansa flights from Portugal to Austin

Our best Lufthansa deals on Portugal to Austin flight tickets
Lufthansa
Feb 13
OPO6:00 amPorto
20h 44m
2 stops
AUS8:44 pmAustin Bergstrom
Feb 17
AUS4:10 pmAustin Bergstrom
16h 35m
1 stop
OPO2:45 pmPorto
$823
Find similar
Lufthansa
Dec 11
LIS11:55 amLisbon Humberto Delgado
14h 46m
1 stop
AUS8:41 pmAustin Bergstrom
Jan 10
AUS11:20 amAustin Bergstrom
14h 50m
1 stop
LIS8:10 amLisbon Humberto Delgado
$838
Find similar
Lufthansa
Nov 29
LIS12:20 pmLisbon Humberto Delgado
31h 55m
1 stop
AUS2:15 pmAustin Bergstrom
Dec 6
AUS4:50 pmAustin Bergstrom
11h 25m
1 stop
LIS10:15 amLisbon Humberto Delgado
$1,555
Find similar

United Airlines flights from Portugal to Austin

Our best United Airlines deals on Portugal to Austin flight tickets
United Airlines
Apr 23
OPO6:00 amPorto
22h 29m
2 stops
AUS10:29 pmAustin Bergstrom
Apr 30
AUS2:00 pmAustin Bergstrom
13h 45m
1 stop
OPO9:45 amPorto
$816
Find similar
United Airlines
Dec 11
OPO6:00 amPorto
40h 47m
2 stops
AUS4:47 pmAustin Bergstrom
Jan 10
AUS11:20 amAustin Bergstrom
18h 20m
2 stops
OPO11:40 amPorto
$821
Find similar
United Airlines
Feb 13
OPO6:00 amPorto
20h 44m
2 stops
AUS8:44 pmAustin Bergstrom
Feb 17
AUS4:10 pmAustin Bergstrom
16h 35m
1 stop
OPO2:45 pmPorto
$822
Find similar

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 November 3, 2025.
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

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 12/11

6:35 am-12:08 pm

3 stops35h 33m

Austin Bergstrom

Sat 1/10

10:35 am-8:40 pm

3 stops28h 05m

$815

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 4/23

6:00 am-10:29 pm

2 stops22h 29m

Austin Bergstrom

Thu 4/30

2:00 pm-9:45 am

1 stop13h 45m

$816

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 12/11

6:35 am-12:08 pm

3 stops35h 33m

Austin Bergstrom

Sat 1/10

10:35 am-11:50 am

2 stops19h 15m

$817

PortoAustin

OPO - AUS

OPOAUS

Porto

Fri 2/13

6:00 am-8:44 pm

2 stops20h 44m

Austin Bergstrom

Tue 2/17

4:10 pm-2:45 pm

1 stop16h 35m

$823

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 12/11

11:15 am-12:28 am

2 stops19h 13m

Austin Bergstrom

Sat 1/10

6:10 pm-10:25 pm

1 stop22h 15m

$829

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Sat 11/22

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Sat 11/29

7:25 am-8:00 am

1 stop18h 35m

$829

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Sun 1/11

4:55 pm-9:27 pm

2 stops34h 32m

Austin Bergstrom

Thu 1/15

12:34 pm-8:55 am

2 stops38h 21m

$834

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Thu 12/11

11:55 am-8:41 pm

1 stop14h 46m

Austin Bergstrom

Sat 1/10

11:20 am-8:10 am

1 stop14h 50m

$838

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Thu 2/5

10:55 am-10:22 pm

1 stop17h 27m

Austin Bergstrom

Mon 2/9

6:55 pm-6:55 pm

1 stop18h 00m

$839

LisbonAustin

LIS - AUS

LISAUS

Lisbon Humberto Delgado

Thu 2/5

10:55 am-10:22 pm

1 stop17h 27m

Austin Bergstrom

Mon 2/9

6:55 pm-2:55 pm

1 stop14h 00m

$840

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 $727, 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 April is your next best option. Flight prices from Portugal to Austin during April average around $763.

What is the cheapest day to depart on your flight to Austin?

The cheapest day to depart on your flight to Austin is on a Wednesday when prices can be found for as low as $786. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Portugal to Austin for around $1,047.

Can stopping save me money on Portugal to Austin flights?

You could potentially save up to 19% 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

Direct flights

None
There are no direct flights from Portugal to Austin. There are no popular flight routes from Portugal to Austin.
Search flight deals

  • 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 many operators does momondo search for flights from Portugal to Austin Bergstrom Airport?

  • 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.

Best airlines flying from Portugal to Austin

Compare and see reviews for airlines that fly from Portugal to Austin with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $809Free CancellationRating
7.7
1,405 reviews
Search KLM flights

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
Seguin
Pflugerville
Kyle
Bastrop
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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