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Cheap flights from Austin to Portugal from $277

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Portugal departing on 10/13. 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 Austin to Portugal

Cheap round-trip flights

United Airlines Logo
5:05 pm - 9:20 amAUS-LIS
35h 15m2 stops
United Airlines Logo
5:00 am - 8:45 pmLIS-AUS
21h 45m2 stops
$506United Airlines
Find Deal
Mon, Oct 27 - Wed, Nov 5
United Airlines Logo
5:05 pm - 10:15 amAUS-LIS
12h 10m1 stop
United Airlines Logo
5:00 am - 8:41 pmLIS-AUS
21h 41m2 stops
$509United Airlines
Find Deal
Mon, Oct 27 - Wed, Nov 5
United Airlines Logo
1:05 pm - 8:55 amAUS-LIS
13h 50m1 stop
United Airlines Logo
11:20 am - 2:11 pmLIS-AUS
32h 51m2 stops
$534United Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 9
Delta Logo
7:23 pm - 9:00 amAUS-LIS
31h 37m1 stop
Delta Logo
10:00 am - 9:35 pmLIS-AUS
17h 35m1 stop
$561Delta
Find Deal
Sun, Nov 23 - Tue, Dec 9
Delta Logo
7:23 pm - 9:00 amAUS-LIS
31h 37m1 stop
Delta Logo
10:00 am - 12:35 amLIS-AUS
20h 35m2 stops
$565Delta
Find Deal
Sun, Nov 23 - Tue, Dec 9
Iberia Logo
9:45 am - 7:40 amAUS-LIS
15h 55m2 stops
Iberia Logo
8:45 pm - 8:22 amLIS-AUS
17h 37m2 stops
$567Iberia
Find Deal
Sun, Feb 8 - Mon, Feb 16
British Airways Logo
6:55 pm - 9:45 pmAUS-LIS
20h 50m1 stop
British Airways Logo
6:30 am - 11:49 pmLIS-AUS
23h 19m2 stops
$571British Airways
Find Deal
Sun, Nov 9 - Fri, Nov 21
British Airways Logo
6:55 pm - 9:45 pmAUS-LIS
20h 50m1 stop
British Airways Logo
7:05 am - 4:50 pmLIS-AUS
15h 45m1 stop
$609British Airways
Find Deal
Sun, Nov 9 - Fri, Nov 21
American Airlines Logo
1:19 pm - 9:05 amAUS-LIS
13h 46m1 stop
American Airlines Logo
11:05 am - 11:52 pmLIS-AUS
18h 47m2 stops
$610American Airlines
Find Deal
Sun, Feb 8 - Mon, Feb 16
American Airlines Logo
7:12 am - 7:40 amAUS-OPO
18h 28m2 stops
American Airlines Logo
8:20 am - 9:12 pmOPO-AUS
18h 52m2 stops
$628American Airlines
Find Deal
Fri, Nov 7 - Fri, Nov 14

United Airlines flights from Austin to Portugal

Our best United Airlines deals on Austin to Portugal flight tickets
United Airlines
Oct 27
AUS5:05 pmAustin Bergstrom
35h 15m
2 stops
LIS9:20 amLisbon Humberto Delgado
Nov 5
LIS5:00 amLisbon Humberto Delgado
21h 45m
2 stops
AUS8:45 pmAustin Bergstrom
$506
Find similar
United Airlines
Oct 27
AUS5:05 pmAustin Bergstrom
12h 10m
1 stop
LIS10:15 amLisbon Humberto Delgado
Nov 5
LIS5:00 amLisbon Humberto Delgado
21h 41m
2 stops
AUS8:41 pmAustin Bergstrom
$509
Find similar
United Airlines
Nov 26
AUS1:05 pmAustin Bergstrom
13h 50m
1 stop
LIS8:55 amLisbon Humberto Delgado
Dec 9
LIS11:20 amLisbon Humberto Delgado
32h 51m
2 stops
AUS2:11 pmAustin Bergstrom
$534
Find similar

British Airways flights from Austin to Portugal

Our best British Airways deals on Austin to Portugal flight tickets
British Airways
Nov 9
AUS6:55 pmAustin Bergstrom
20h 50m
1 stop
LIS9:45 pmLisbon Humberto Delgado
Nov 21
LIS6:30 amLisbon Humberto Delgado
23h 19m
2 stops
AUS11:49 pmAustin Bergstrom
$571
Find similar
British Airways
Nov 9
AUS6:55 pmAustin Bergstrom
20h 50m
1 stop
LIS9:45 pmLisbon Humberto Delgado
Nov 21
LIS7:05 amLisbon Humberto Delgado
15h 45m
1 stop
AUS4:50 pmAustin Bergstrom
$609
Find similar
British Airways
Nov 17
AUS6:55 pmAustin Bergstrom
21h 00m
1 stop
LIS9:55 pmLisbon Humberto Delgado
Nov 24
LIS6:35 pmLisbon Humberto Delgado
28h 15m
1 stop
AUS4:50 pmAustin Bergstrom
$613
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Austin to Portugal 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 September 16, 2025.
Use the filters below to find and compare flights from Austin to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Mon 10/27

5:05 pm-9:20 am

2 stops35h 15m

Lisbon Humberto Delgado

Wed 11/5

5:00 am-8:45 pm

2 stops21h 45m

$506

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Mon 10/27

5:05 pm-10:15 am

1 stop12h 10m

Lisbon Humberto Delgado

Wed 11/5

5:00 am-8:41 pm

2 stops21h 41m

$509

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Wed 11/26

1:05 pm-8:55 am

1 stop13h 50m

Lisbon Humberto Delgado

Tue 12/9

11:20 am-2:11 pm

2 stops32h 51m

$534

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Sun 11/23

7:23 pm-9:00 am

1 stop31h 37m

Lisbon Humberto Delgado

Tue 12/9

10:00 am-9:35 pm

1 stop17h 35m

$561

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Sun 11/23

7:23 pm-9:00 am

1 stop31h 37m

Lisbon Humberto Delgado

Tue 12/9

10:00 am-12:35 am

2 stops20h 35m

$565

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Sun 2/8

9:45 am-7:40 am

2 stops15h 55m

Lisbon Humberto Delgado

Mon 2/16

8:45 pm-8:22 am

2 stops17h 37m

$567

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Sun 11/9

6:55 pm-9:45 pm

1 stop20h 50m

Lisbon Humberto Delgado

Fri 11/21

6:30 am-11:49 pm

2 stops23h 19m

$571

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Sun 11/9

6:55 pm-9:45 pm

1 stop20h 50m

Lisbon Humberto Delgado

Fri 11/21

7:05 am-4:50 pm

1 stop15h 45m

$609

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Sun 2/8

1:19 pm-9:05 am

1 stop13h 46m

Lisbon Humberto Delgado

Mon 2/16

11:05 am-11:52 pm

2 stops18h 47m

$610

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Fri 11/7

7:12 am-7:40 am

2 stops18h 28m

Porto

Fri 11/14

8:20 am-9:12 pm

2 stops18h 52m

$628

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 Portugal from

How to get the cheapest flight ticket from Austin to Portugal

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 Portugal?

The cheapest month to fly to Portugal from Austin is in January. Flight prices, which tend to average around $647, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Austin during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $689.

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

According to our data, Wednesday is the cheapest day to fly to Portugal from Austin. The lowest ticket price found for a Wednesday departure recently was $883. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $1,193.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from Austin to Portugal during this time can be as low as $796. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,086 per ticket.

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $951 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Austin for as low as $856 on momondo.

Can stopping save me money on Austin to Portugal flights?

You could potentially save up to 38% on your flight if you consider stops on a Austin to Portugal flight.

Cheap Austin to Portugal flight deals and tips

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

Direct flights

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

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

    Prices for flights from Austin Bergstrom Airport to Portugal refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Austin Bergstrom Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The required travel and health documents for your Portugal 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 Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Austin to Portugal

Compare and see reviews for airlines that fly from Austin to Portugal with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $524Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $561Free CancellationRating
7.0
2,924 reviews
Search Iberia flights
Air FrancePriceFrom $581Free CancellationRating
7.4
1,468 reviews
Search Air France flights
DeltaPriceFrom $587Free CancellationRating
7.9
7,957 reviews
Search Delta flights
KLMPriceFrom $597Free CancellationRating
7.8
1,386 reviews
Search KLM flights
United AirlinesPriceFrom $606Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
British AirwaysPriceFrom $633Free CancellationRating
6.7
7,363 reviews
Search British Airways flights
Virgin AtlanticPriceFrom $668Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
Air CanadaPriceFrom $759Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
LufthansaPriceFrom $941Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Austin to Portugal for you.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Portugal from Austin.

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

Price alerts on flights to Portugal from Austin are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Portugal trip

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Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $358
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Flights to Pico Islandfrom $563
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