$336+ Cheap flights from Austin (AUS) to Porto (OPO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Austin to Porto with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Austin to Porto
Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.
Round-trip from | $673 (Mytrip) |
|---|---|
One-way from | $336 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $1,556 |
Find flight deals from Austin to Porto
Cheapest flights from Austin to PortoExplore the most affordable flight options available from Austin to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Austin to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This Mytrip deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Gotogate deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This KAYAK deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Expedia deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This KLM deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This SWISS deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air France deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Austin to Porto 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Austin to Porto that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Mon 8/4
11:15 am-10:25 pm
2 stops29h 10m
Porto
Wed 8/20
7:15 am-10:29 am
2 stops33h 14m
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Mon 8/4
6:00 am-6:55 am
1 stop18h 55m
Porto
Wed 8/20
6:00 am-8:50 pm
2 stops20h 50m
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 10/1
10:15 pm-10:25 am
1 stop30h 10m
Porto
Fri 10/10
11:15 am-12:22 pm
2 stops31h 07m
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 10/1
3:35 pm-3:30 pm
2 stops17h 55m
Porto
Fri 10/10
6:40 am-12:27 am
2 stops23h 47m
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Thu 8/21
6:37 pm-3:55 pm
2 stops15h 18m
Porto
Wed 9/3
12:20 pm-10:49 pm
2 stops16h 29m
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Thu 8/21
7:22 pm-3:55 pm
2 stops14h 33m
Porto
Mon 9/1
8:35 pm-11:54 pm
2 stops33h 19m
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Tue 7/22
11:15 am-9:20 am
2 stops40h 05m
Porto
Tue 7/29
6:00 am-10:29 am
2 stops34h 29m
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Thu 8/21
6:00 pm-10:40 am
1 stop34h 40m
Porto
Mon 9/1
6:30 am-4:00 pm
1 stop15h 30m
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Wed 7/9
2:55 pm-6:30 pm
2 stops21h 35m
Porto
Tue 7/15
12:15 pm-8:55 pm
2 stops38h 40m
AustinPorto
AUS - OPO
AUSOPO
Austin Bergstrom
Sat 7/5
4:59 pm-3:30 pm
2 stops16h 31m
Porto
Wed 7/16
9:20 am-9:17 pm
2 stops17h 57m
Best time to book a flight from Austin to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from Austin with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Austin to Porto
What is the cheapest month to book a flight from Austin to Porto?
Currently, January is the cheapest month in which you can book a flight from Austin to Porto (average of $523). Flying from Austin to Porto in June is currently the most expensive (average of $1,047). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from AUS to OPO?
Find hourly flight availability from Austin to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.
One of the essential ways to save on airfare from Austin to Porto is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 27% on airfare.
Rainfall in Porto by month
Plan your trip to Porto by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.
Temperature in Porto by month
Plan your trip to Porto by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).
Reviews of airlines servicing Porto
Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated June 12, 2025.
To help decide which airline to fly from Austin to Porto, see what other customers have to say about Delta, KLM and Air France. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Austin to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Austin to Porto
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Austin to Porto
Discover the top 3 airlines that operate flights from Austin to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$644 | Average$1,307 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$655 | Average$939 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$754 | Average$1,168 | FlexibilityNo cancel fee | On-time69% |