Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Porto to Austin from $418

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Austin departing on 5/29. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Porto to Austin

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 9:14 pm
OPO
-
AUS
21h 14m
2 stops
United Airlines Logo
4:57 pm - 9:45 am
AUS
-
OPO
34h 48m
2 stops
$921United Airlines
Fri, Apr 17 - Fri, Apr 24
Delta Logo
5:00 am - 4:10 pm
OPO
-
AUS
17h 10m
1 stop
Delta Logo
5:06 pm - 3:25 pm
AUS
-
OPO
16h 19m
2 stops
$925Delta
Thu, Apr 30 - Mon, May 4
Delta Logo
5:00 am - 9:56 pm
OPO
-
AUS
22h 56m
2 stops
Delta Logo
5:06 pm - 3:25 pm
AUS
-
OPO
16h 19m
2 stops
$930Delta
Thu, Apr 30 - Mon, May 4
Multiple Airlines Logo
11:25 am - 4:10 pm
OPO
-
AUS
34h 45m
1 stop
Multiple Airlines Logo
3:34 pm - 3:25 pm
AUS
-
OPO
17h 51m
2 stops
$943Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
United Airlines Logo
12:10 pm - 2:00 pm
OPO
-
AUS
31h 50m
1 stop
United Airlines Logo
4:05 pm - 3:40 pm
AUS
-
OPO
17h 35m
1 stop
$944United Airlines
Thu, Apr 30 - Mon, May 4
Delta Logo
5:00 am - 6:54 pm
OPO
-
AUS
19h 54m
2 stops
Delta Logo
1:48 pm - 3:25 pm
AUS
-
OPO
19h 37m
2 stops
$949Delta
Wed, Jun 10 - Wed, Jun 24
United Airlines Logo
12:35 pm - 10:24 pm
OPO
-
AUS
15h 49m
1 stop
United Airlines Logo
10:25 am - 7:00 am
AUS
-
OPO
14h 35m
1 stop
$969United Airlines
Wed, Jun 10 - Wed, Jun 24
Multiple Airlines Logo
6:35 am - 11:40 pm
OPO
-
AUS
47h 05m
3 stops
Multiple Airlines Logo
9:25 am - 11:40 am
AUS
-
OPO
20h 15m
2 stops
$974Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
Iberia Logo
8:40 pm - 9:46 pm
OPO
-
AUS
31h 06m
2 stops
Iberia Logo
5:42 pm - 8:00 pm
AUS
-
OPO
20h 18m
2 stops
$984Iberia
Wed, Jun 10 - Wed, Jun 24
Multiple Airlines Logo
6:35 am - 11:40 pm
OPO
-
AUS
47h 05m
3 stops
Multiple Airlines Logo
9:25 am - 2:45 pm
AUS
-
OPO
23h 20m
3 stops
$1,005Multiple Airlines
Fri, Apr 17 - Fri, Apr 24

United Airlines flights from Porto to Austin

Our best United Airlines deals on Porto to Austin flight tickets
United Airlines
Apr 17
OPO6:00 amPorto
21h 14m
2 stops
AUS9:14 pmAustin Bergstrom
Apr 24
AUS4:57 pmAustin Bergstrom
34h 48m
2 stops
OPO9:45 amPorto
$921
United Airlines
Apr 30
OPO6:00 amPorto
20h 43m
2 stops
AUS8:43 pmAustin Bergstrom
May 4
AUS4:05 pmAustin Bergstrom
17h 35m
1 stop
OPO3:40 pmPorto
$930
United Airlines
Apr 30
OPO12:10 pmPorto
31h 50m
1 stop
AUS2:00 pmAustin Bergstrom
May 4
AUS4:05 pmAustin Bergstrom
17h 35m
1 stop
OPO3:40 pmPorto
$944

Delta flights from Porto to Austin

Our best Delta deals on Porto to Austin flight tickets
Delta
Apr 30
OPO5:00 amPorto
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
May 4
AUS5:06 pmAustin Bergstrom
16h 19m
2 stops
OPO3:25 pmPorto
$925
Delta
Apr 6
OPO5:00 amPorto
17h 10m
1 stop
AUS4:10 pmAustin Bergstrom
Apr 13
AUS6:15 pmAustin Bergstrom
17h 40m
2 stops
OPO5:55 pmPorto
$931
Delta
Apr 6
OPO5:00 amPorto
23h 44m
2 stops
AUS10:44 pmAustin Bergstrom
Apr 13
AUS6:39 pmAustin Bergstrom
17h 16m
2 stops
OPO5:55 pmPorto
$936

momondo Fare Finder

 
Customize your flight search to find flights from Porto 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 March 24, 2026.
Use the filters below to find and compare flights from Porto to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoAustin

OPO - AUS

OPOAUS

Porto

Fri 4/17

6:00 am-9:14 pm

2 stops21h 14m

Austin Bergstrom

Fri 4/24

4:57 pm-9:45 am

2 stops34h 48m

$921

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 4/30

5:00 am-4:10 pm

1 stop17h 10m

Austin Bergstrom

Mon 5/4

5:06 pm-3:25 pm

2 stops16h 19m

$925

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 4/30

5:00 am-9:56 pm

2 stops22h 56m

Austin Bergstrom

Mon 5/4

5:06 pm-3:25 pm

2 stops16h 19m

$930

PortoAustin

OPO - AUS

OPOAUS

Porto

Fri 4/17

11:25 am-4:10 pm

1 stop34h 45m

Austin Bergstrom

Fri 4/24

3:34 pm-3:25 pm

2 stops17h 51m

$943

PortoAustin

OPO - AUS

OPOAUS

Porto

Thu 4/30

12:10 pm-2:00 pm

1 stop31h 50m

Austin Bergstrom

Mon 5/4

4:05 pm-3:40 pm

1 stop17h 35m

$944

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 6/10

5:00 am-6:54 pm

2 stops19h 54m

Austin Bergstrom

Wed 6/24

1:48 pm-3:25 pm

2 stops19h 37m

$949
Quickest round-trip

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 6/10

12:35 pm-10:24 pm

1 stop15h 49m

Austin Bergstrom

Wed 6/24

10:25 am-7:00 am

1 stop14h 35m

$969

PortoAustin

OPO - AUS

OPOAUS

Porto

Fri 4/17

6:35 am-11:40 pm

3 stops47h 05m

Austin Bergstrom

Fri 4/24

9:25 am-11:40 am

2 stops20h 15m

$974

PortoAustin

OPO - AUS

OPOAUS

Porto

Wed 6/10

8:40 pm-9:46 pm

2 stops31h 06m

Austin Bergstrom

Wed 6/24

5:42 pm-8:00 pm

2 stops20h 18m

$984

PortoAustin

OPO - AUS

OPOAUS

Porto

Fri 4/17

6:35 am-11:40 pm

3 stops47h 05m

Austin Bergstrom

Fri 4/24

9:25 am-2:45 pm

3 stops23h 20m

$1,005

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Austin from

How to get the cheapest flight ticket from Porto 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

Can stopping save me money on Porto to Austin flights?

You could potentially save up to 57% on your flight if you consider stops on a Porto to Austin flight.

When to book flights from Porto to Austin

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Austin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Porto to Austin (OPO to AUS) flight deals and tips

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

Fastest flight time

17h 10m

Direct flights

None
The fastest flight from Porto to Austin takes 17h 10m
There are no direct flights from Porto to Austin. There are no popular flight routes from Porto to Austin.
Search flight deals

  • How far is Porto to Austin Bergstrom by plane?

    The straight-line distance from Porto to Austin Bergstrom is 4833.8 mi. By plane, this route typically takes 17h 10m.

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

    Prices for flights from Porto Airport to Austin Bergstrom Airport were last updated today.

  • How old do you have to be to fly from Porto Airport 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 Porto Airport 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
Georgetown
Canyon Lake
Marble Falls
Cedar Park
Horseshoe Bay
Dripping Springs
Pflugerville
Seguin
Kyle
Bastrop
Buda
Flatonia

Why use momondo?

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

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

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

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

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

momondo provides multiple filters to help you find the best flight to Austin from Porto. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Austin from Porto. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Austin trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 4/23
Thu 4/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States