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Cheap flights from Portsmouth to Austin from £647

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — AUS
20 Jul — 27 Jul1
1 adult

Cheap flight deals from Portsmouth to Austin

Keep the following information in mind while searching for Portsmouth to Austin flight deals. Data was last updated 15 July 2025.

Round-trip from

£647

Popular in

August

Cheapest in

February

Average price

£750
Delta
  • Delta
  • 27/8-3/9
  • 4 total stops
  • 41h 43m total
  • Portsmouth to Austin
Highest demand for flights based on searches. 13% potential increase in price (£70 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from Portsmouth to Austin

Cheapest flights from Portsmouth to Austin
Explore the most affordable flight options available from Portsmouth to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Wed 27/809:20SOU - AUS
2 stops20h 58mDelta
Wed 3/906:00AUS - SOU
2 stops20h 45mDelta
Deal found 13/7£647
Wed 27/817:35SOU - AUS
1 stop28h 25mVirgin Atlantic
Wed 3/907:25AUS - SOU
2 stops19h 20mVirgin Atlantic
Deal found 13/7£672
Wed 27/820:00SOU - AUS
3 stops30h 12mMultiple Airlines
Wed 3/916:05AUS - SOU
3 stops34h 40mMultiple Airlines
Deal found 13/7£1,093

Cheapflights Fare Finder

Customise your flight search to find flights from Portsmouth 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, Cheapflights users made 858,174 searches. Data last updated 15 July 2025.
Use the filters below to find and compare flights from Portsmouth to Austin that are best for you.

Fly from

Portsmouth

Fly to

Austin

Route

Depart

Return

Price

SouthamptonAustin

SOU - AUS

SOUAUS

Southampton Eastleigh

Wed 27/8

09:20-00:18

2 stops20h 58m

Austin Bergstrom

Wed 3/9

06:00-08:45

2 stops20h 45m

£647

SouthamptonAustin

SOU - AUS

SOUAUS

Southampton Eastleigh

Wed 27/8

17:35-16:00

1 stop28h 25m

Austin Bergstrom

Wed 3/9

07:25-08:45

2 stops19h 20m

£672

SouthamptonAustin

SOU - AUS

SOUAUS

Southampton Eastleigh

Wed 27/8

20:00-20:12

3 stops30h 12m

Austin Bergstrom

Wed 3/9

16:05-08:45

3 stops34h 40m

£1,093

SouthamptonAustin

SOU - AUS

SOUAUS

Southampton Eastleigh

Sun 14/9

18:25-16:00

1 stop27h 35m

£1,166

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Best time to book a flight from Portsmouth to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Portsmouth with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Austin

What is the cheapest month to book a flight from Portsmouth to Austin?

Currently, February is the cheapest month in which you can book a flight from Portsmouth to Austin (average of £636). Flying from Portsmouth to Austin in July is currently the most expensive (average of £901). 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 P0R to AUS?

Find hourly flight availability from Portsmouth to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 July 2025.

When flying from Portsmouth to Austin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Portsmouth to Austin

Explore weekly flight availability from Portsmouth to Austin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 July 2025.

The most flights from P0R to AUS are scheduled on a Monday (7 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. 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 Austin. Reviews last updated 15 July 2025.
Read through reviews of airlines operating flights from Portsmouth to Austin, such as Delta and Virgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
8.0
Very Good

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Austin from Portsmouth?

    For a flight from Portsmouth to Austin, you will be flying into Austin Bergstrom. Austin Bergstrom (AUS) is just 7.5 mi from the center of the city. Austin Bergstrom is the only Austin airport and it handles 0 inbound flights from Portsmouth per day. 10 airlines have flights to Austin Bergstrom from Portsmouth on a regular basis.

  • What are the most reliable airlines from Portsmouth to Austin?

    Before booking your flight to Austin from Portsmouth, check out the most reliable airlines to get you to your destination on time: Aer Lingus (66%), Finnair (66%), Iberia( 66%).

  • What are the cheapest flights from Portsmouth to Austin?

    The cheapest flight price from Portsmouth to Austin is £476. On average you can expect to pay £1,529. The most popular route, (Southampton Eastleigh - Austin Bergstrom), can usually be booked for £647.

  • Can I find deals for flights from Portsmouth to Austin that include hotel bookings?

    Yes. In addition to deals on Portsmouth to Austin flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Austin.

  • Can I find deals for business class flights from Portsmouth to Austin?

    Yes. Cheapflights offers flight deals from Portsmouth to Austin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portsmouth to Austin?

    Currently, February is the cheapest month in which you can book a flight from Portsmouth to Austin (average of £636). Flying from Portsmouth to Austin in July is currently the most expensive (average of £901). 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.

See more FAQs

Travelling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Round Rock

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Alternative routes for Portsmouth to Austin

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Portsmouth to Austin

Discover the top 10 airlines that operate flights from Portsmouth to Austin. 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 858,174 searches. Data last updated 15 July 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£344Average£534FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapest£402Average£569FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£417Average£600FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£433Average£571FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£435Average£611FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest£446Average£661FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapest£450Average£525FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£459Average£622FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£466Average£579FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£490Average£651FlexibilityNo cancel feeOn-time77%
Search Iberia flights

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