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Cheap flights from Austin to Portugal from $361

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 8/17. 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

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Find the cheapest flights from Austin to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:46 pm - 5:50 pm
AUS
-
LIS
19h 04m
2 stops
Delta Logo
5:00 am - 4:10 pm
LIS
-
AUS
17h 10m
1 stop
$660Delta
Thu, Apr 23 - Mon, Apr 27
Multiple Airlines Logo
10:30 pm - 11:10 pm
AUS
-
LIS
18h 40m
1 stop
Multiple Airlines Logo
8:25 am - 7:39 pm
LIS
-
AUS
17h 14m
2 stops
$662Multiple Airlines
Mon, Apr 27 - Tue, May 5
United Airlines Logo
4:05 pm - 2:30 pm
AUS
-
FAO
16h 25m
1 stop
United Airlines Logo
3:25 pm - 1:04 pm
FAO
-
AUS
51h 39m
2 stops
$662United Airlines
Mon, Apr 20 - Mon, Apr 27
Delta Logo
6:15 pm - 6:45 pm
AUS
-
LIS
18h 30m
2 stops
Delta Logo
5:00 am - 4:10 pm
LIS
-
AUS
17h 10m
1 stop
$665Delta
Wed, Apr 22 - Mon, Apr 27
United Airlines Logo
5:30 am - 2:30 pm
AUS
-
FAO
27h 00m
2 stops
United Airlines Logo
3:25 pm - 1:04 pm
FAO
-
AUS
51h 39m
2 stops
$666United Airlines
Mon, Apr 20 - Mon, Apr 27
British Airways Logo
10:30 pm - 11:10 pm
AUS
-
LIS
18h 40m
1 stop
British Airways Logo
4:30 pm - 3:25 pm
LIS
-
AUS
28h 55m
1 stop
$671British Airways
Fri, Apr 17 - Fri, Apr 24
KLM Logo
6:15 pm - 6:20 pm
AUS
-
OPO
18h 05m
2 stops
KLM Logo
6:15 am - 5:23 pm
OPO
-
AUS
17h 08m
2 stops
$735KLM
Tue, Apr 21 - Tue, Apr 28
American Airlines Logo
4:55 pm - 4:00 pm
AUS
-
OPO
17h 05m
2 stops
American Airlines Logo
8:20 am - 10:50 pm
OPO
-
AUS
20h 30m
2 stops
$764American Airlines
Tue, Apr 21 - Thu, May 7
KLM Logo
6:15 pm - 3:30 pm
AUS
-
OPO
15h 15m
2 stops
KLM Logo
5:55 am - 5:33 pm
OPO
-
AUS
17h 38m
2 stops
$769KLM
Tue, May 5 - Wed, May 20
British Airways Logo
5:55 pm - 10:20 am
AUS
-
FAO
34h 25m
1 stop
British Airways Logo
6:45 pm - 3:25 pm
FAO
-
AUS
26h 40m
1 stop
$888British Airways
Sun, Apr 26 - Sat, May 9

Delta flights from Austin to Portugal

Our best Delta deals on Austin to Portugal flight tickets
Delta
Apr 23
AUS4:46 pmAustin Bergstrom
19h 04m
2 stops
LIS5:50 pmLisbon Humberto Delgado
Apr 27
LIS5:00 amLisbon Humberto Delgado
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
$660
Delta
Apr 22
AUS6:15 pmAustin Bergstrom
18h 30m
2 stops
LIS6:45 pmLisbon Humberto Delgado
Apr 27
LIS5:00 amLisbon Humberto Delgado
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
$665
Delta
Apr 23
AUS4:46 pmAustin Bergstrom
16h 09m
2 stops
LIS2:55 pmLisbon Humberto Delgado
Apr 27
LIS11:55 amLisbon Humberto Delgado
18h 22m
2 stops
AUS12:17 amAustin Bergstrom
$670

Iberia flights from Austin to Portugal

Our best Iberia deals on Austin to Portugal flight tickets
Iberia
Apr 17
AUS6:45 pmAustin Bergstrom
22h 40m
2 stops
LIS11:25 pmLisbon Humberto Delgado
Apr 24
LIS8:25 amLisbon Humberto Delgado
21h 26m
2 stops
AUS11:51 pmAustin Bergstrom
$673
Iberia
Apr 15
AUS2:46 pmAustin Bergstrom
26h 39m
2 stops
LIS11:25 pmLisbon Humberto Delgado
May 1
LIS8:45 pmLisbon Humberto Delgado
33h 06m
2 stops
AUS11:51 pmAustin Bergstrom
$684
Iberia
Apr 7
AUS9:35 amAustin Bergstrom
17h 30m
1 stop
LIS9:05 amLisbon Humberto Delgado
Apr 21
LIS12:30 pmLisbon Humberto Delgado
16h 20m
2 stops
AUS10:50 pmAustin Bergstrom
$718

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 March 23, 2026.
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

Cheapest round-trip

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Thu 4/23

4:46 pm-5:50 pm

2 stops19h 04m

Lisbon Humberto Delgado

Mon 4/27

5:00 am-4:10 pm

1 stop17h 10m

$660

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Mon 4/27

10:30 pm-11:10 pm

1 stop18h 40m

Lisbon Humberto Delgado

Tue 5/5

8:25 am-7:39 pm

2 stops17h 14m

$662

AustinFaro

AUS - FAO

AUSFAO

Austin Bergstrom

Mon 4/20

4:05 pm-2:30 pm

1 stop16h 25m

Faro

Mon 4/27

3:25 pm-1:04 pm

2 stops51h 39m

$662

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Wed 4/22

6:15 pm-6:45 pm

2 stops18h 30m

Lisbon Humberto Delgado

Mon 4/27

5:00 am-4:10 pm

1 stop17h 10m

$665

AustinFaro

AUS - FAO

AUSFAO

Austin Bergstrom

Mon 4/20

5:30 am-2:30 pm

2 stops27h 00m

Faro

Mon 4/27

3:25 pm-1:04 pm

2 stops51h 39m

$666

AustinLisbon

AUS - LIS

AUSLIS

Austin Bergstrom

Fri 4/17

10:30 pm-11:10 pm

1 stop18h 40m

Lisbon Humberto Delgado

Fri 4/24

4:30 pm-3:25 pm

1 stop28h 55m

$671

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

6:15 pm-6:20 pm

2 stops18h 05m

Porto

Tue 4/28

6:15 am-5:23 pm

2 stops17h 08m

$735

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

4:55 pm-4:00 pm

2 stops17h 05m

Porto

Thu 5/7

8:20 am-10:50 pm

2 stops20h 30m

$764
Quickest round-trip

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 5/5

6:15 pm-3:30 pm

2 stops15h 15m

Porto

Wed 5/20

5:55 am-5:33 pm

2 stops17h 38m

$769

AustinFaro

AUS - FAO

AUSFAO

Austin Bergstrom

Sun 4/26

5:55 pm-10:20 am

1 stop34h 25m

Faro

Sat 5/9

6:45 pm-3:25 pm

1 stop26h 40m

$888

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 February. Flight prices, which tend to average around $656, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Austin during November instead. Flights to Portugal in November, while not as cheap as those in February, still average around $718.

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 $869 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 $798 on momondo.

Can stopping save me money on Austin to Portugal flights?

You could potentially save up to 30% 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

Fastest flight time

12h 45m

Direct flights

None
The fastest flight from Austin to Portugal takes 12h 45m
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
British AirwaysPriceFrom $511Free CancellationRating
6.7
7,813 reviews
Search British Airways flights
KLMPriceFrom $531Free CancellationRating
7.8
1,477 reviews
Search KLM flights
DeltaPriceFrom $541Free CancellationRating
7.9
8,319 reviews
Search Delta flights
United AirlinesPriceFrom $557Free CancellationRating
7.4
9,460 reviews
Search United Airlines flights
American AirlinesPriceFrom $600Free CancellationRating
7.1
11,489 reviews
Search American Airlines flights
LufthansaPriceFrom $605Free CancellationRating
6.8
7,862 reviews
Search Lufthansa flights
Virgin AtlanticPriceFrom $605Free CancellationRating
7.5
685 reviews
Search Virgin Atlantic flights
IberiaPriceFrom $648Free CancellationRating
7.0
3,147 reviews
Search Iberia flights
Air CanadaPriceFrom $759Free CancellationRating
7.1
10,834 reviews
Search Air Canada 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.

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Find better results for your trip to Portugal

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Popular flights according to clicks in the last 7 days on momondo
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