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Cheap flights from Portsmouth to Austin from £798

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — AUS
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£798

Popular in

August

Cheapest in

February

Average price

£614
KLM
  • KLM
  • 27/7-3/8
  • 3 total stops
  • 45h 10m 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 (£15 potential savings vs. average return price).
Average for round-trip flights in June 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 13 June 2025.

Sun 27/717:35SOU - AUS
1 stop28h 25mKLM
Sun 3/819:05AUS - SOU
2 stops16h 45mKLM
Deal found 12/6£798
Sat 26/709:20SOU - AUS
2 stops17h 57mDelta
Sat 2/814:30AUS - SOU
2 stops20h 30mDelta
Deal found 11/6£862
Sun 27/714:50SOU - AUS
3 stops34h 37mMultiple Airlines
Sun 3/811:15AUS - SOU
3 stops26h 15mMultiple Airlines
Deal found 12/6£1,004

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 13 June 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

Sun 27/7

17:35-16:00

1 stop28h 25m

Austin Bergstrom

Sun 3/8

19:05-17:50

2 stops16h 45m

£798

SouthamptonAustin

SOU - AUS

SOUAUS

Southampton Eastleigh

Sat 26/7

09:20-21:17

2 stops17h 57m

Austin Bergstrom

Sat 2/8

14:30-17:00

2 stops20h 30m

£862

SouthamptonAustin

SOU - AUS

SOUAUS

Southampton Eastleigh

Sun 27/7

14:50-19:27

3 stops34h 37m

Austin Bergstrom

Sun 3/8

11:15-19:30

3 stops26h 15m

£1,004

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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 13 June 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.

What is the cheapest day to fly from Portsmouth to Austin?

Use this chart to determine the cheapest time to fly return from Portsmouth to Austin. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Portsmouth to Austin flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 13 June 2025.

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

Rainfall in Austin by month

Plan your trip to Austin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Austin ranges from 53.0 - 107.0 inches per month. May is typically the wettest month, when rainfall can reach 107.0 mm. July is typically the driest time to visit Austin when rainfall is around 53.0 mm.

Temperature in Austin by month

Plan your trip to Austin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Austin, 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 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 10.0 C).

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 13 June 2025.

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 (72%), Finnair (72%), Iberia( 72%).

  • What are the cheapest flights from Portsmouth to Austin?

    The cheapest flight price from Portsmouth to Austin is £374. On average you can expect to pay £1,483. The most popular route, (Southampton Eastleigh - Austin Bergstrom), can usually be booked for £798.

  • 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 Portsmouth?

Book flights to Portsmouth 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£341Average£529FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapest£406Average£570FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£413Average£592FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£429Average£564FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£431Average£583FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest£442Average£667FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapest£446Average£520FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£454Average£620FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£466Average£579FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£488Average£661FlexibilityNo cancel feeOn-time77%
Search Iberia flights

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How does Cheapflights help users find flights from Portsmouth to Austin?

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Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Austin?

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Need flexible booking options for your flight to Austin from Portsmouth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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