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Portsmouth

$659+ Cheap flights from Austin (AUS) to Portsmouth, England

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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — LHR
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Cheap flight deals from Austin to Portsmouth

Keep the following information in mind while searching for Austin to Portsmouth flight deals. Data was last updated November 2, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$792
(Virgin Atlantic)

Popular in

June

Cheapest in

April

Average price

$805
Provider with most accurate pricing for Austin Bergstrom-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Austin Bergstrom-London (LON) flights.
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From Austin Bergstrom to Portsmouth
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Highest demand for flights based on searches. 20% potential increase in price ($216 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Austin to Portsmouth

Cheapest flights from Austin to Portsmouth
Explore the most affordable flight options available from Austin to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This Delta deal was found by Cheapflights users on 11/2. 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.
Sat 11/225:50 pmAUS - SOU
2 stops32h 20mDelta
Fri 11/288:40 amSOU - AUS
2 stops31h 35mDelta
Deal found 11/2$920
This Delta deal was found by Cheapflights users on 11/2. 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.
Sun 11/231:41 pmAUS - SOU
2 stops21h 44mDelta
Fri 11/288:40 amSOU - AUS
2 stops31h 35mDelta
Deal found 11/2$1,013
This Delta deal was found by Cheapflights users on 11/2. 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.
Fri 11/214:40 pmAUS - SOU
2 stops57h 30mDelta
Fri 11/288:40 amSOU - AUS
2 stops31h 35mDelta
Deal found 11/2$1,072
This Delta deal was found by Cheapflights users on 11/2. 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.
Sat 11/226:05 pmAUS - SOU
1 stop32h 05mDelta
Sun 11/306:05 pmSOU - AUS
1 stop28h 05mDelta
Deal found 11/2$1,640
This Delta deal was found by Cheapflights users on 11/2. 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.
Sat 11/226:05 pmAUS - SOU
1 stop17h 20mDelta
Sat 11/299:25 amSOU - AUS
2 stops18h 22mDelta
Deal found 11/2$2,212
This Delta deal was found by Cheapflights users on 11/2. 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.
Fri 11/215:30 amAUS - SOU
2 stops21h 20mDelta
Sat 11/299:25 amSOU - AUS
2 stops21h 03mDelta
Deal found 11/2$2,893
This British Airways deal was found by Cheapflights users on 11/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:12 amAUS - SOU
2 stops24h 43mBritish Airways
Tue 12/98:50 pmSOU - AUS
2 stops26h 00mBritish Airways
Deal found 11/1$4,129

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Portsmouth 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 November 2, 2025.
Use the filters below to find and compare flights from Austin to Portsmouth that are best for you.

Fly from

Austin

Fly to

Portsmouth

Route

Depart

Return

Price

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Thu 2/26

6:05 pm-5:00 pm

1 stop16h 55m

Southampton Eastleigh

Mon 3/2

5:30 pm-7:46 pm

2 stops32h 16m

$792

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Thu 2/26

7:30 am-8:05 am

2 stops18h 35m

Southampton Eastleigh

Mon 3/2

5:30 pm-5:37 pm

2 stops30h 07m

$798

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Sat 11/22

5:50 pm-8:10 am

2 stops32h 20m

Southampton Eastleigh

Fri 11/28

8:40 am-10:15 am

2 stops31h 35m

$920

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Sun 11/23

1:41 pm-5:25 pm

2 stops21h 44m

Southampton Eastleigh

Fri 11/28

8:40 am-10:15 am

2 stops31h 35m

$1,013

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Fri 11/21

4:40 pm-8:10 am

2 stops57h 30m

Southampton Eastleigh

Fri 11/28

8:40 am-10:15 am

2 stops31h 35m

$1,072

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Sat 11/22

6:05 pm-8:10 am

1 stop32h 05m

Southampton Eastleigh

Sun 11/30

6:05 pm-4:10 pm

1 stop28h 05m

$1,640

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Sat 11/22

8:35 am-8:50 am

2 stops18h 15m

Southampton Eastleigh

Sat 11/29

9:25 am-9:34 pm

2 stops18h 09m

$2,217

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Thu 11/20

7:20 am-5:00 pm

2 stops27h 40m

$659

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Fri 11/21

7:20 am-8:50 am

2 stops19h 30m

$1,257

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Best time to book a flight from Austin to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Austin with our price prediction graph.
Estimated round-trip 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 Austin to Portsmouth

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

Currently, August is the cheapest month in which you can book a flight from Austin to Portsmouth (average of $131). Flying from Austin to Portsmouth in June is currently the most expensive (average of $869). 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 P0R?

Find hourly flight availability from Austin to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 16% on flights from Austin to Portsmouth by exploring options for tickets in the morning.

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

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

Travelers seeking maximum savings on their Austin to Portsmouth flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Austin to Portsmouth. 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 from for flights from Austin to Portsmouth?

    Most people fly from Austin Bergstrom (AUS) if they book a flight from Austin to Portsmouth. On average, Austin Bergstrom has 0 outbound flights to Portsmouth per day from 7 airlines. Austin Bergstrom is conveniently located just 7.5 mi from Austin’s city center.

  • How long is the flight from Austin to Portsmouth?

    For as low as $792, Virgin Atlantic can have you in Portsmouth from Austin in 16h 55m. Airlines will cover a distance of 4881 mi. This flight may include one or multiple stops.

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

    Consider American Airlines (66%), British Airways (66%) or Aer Lingus (60%) when booking your flight. These represent the most reliable airlines when flying from Austin to Portsmouth.

  • What are the cheapest flights from Austin to Portsmouth?

    On average you can expect to pay $1,432 for a flight from Austin to Portsmouth. The cheapest flight overall is $458 while the most popular route, (Austin Bergstrom - Southampton Eastleigh) is currently priced at $793.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Austin to Portsmouth 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 Austin to Portsmouth?

    Currently, August is the cheapest month in which you can book a flight from Austin to Portsmouth (average of $131). Flying from Austin to Portsmouth in June is currently the most expensive (average of $869). 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

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Top 7 airlines flying from Austin to Portsmouth

Discover the top 7 airlines that operate flights from Austin to Portsmouth. 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$538Average$881FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$545Average$804FlexibilityNo cancel feeOn-time71%
FinnairCheapest$567Average$748FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$568Average$1,009FlexibilityNo cancel feeOn-time69%
IberiaCheapest$579Average$804FlexibilityNo cancel feeOn-time77%
DeltaCheapest$623Average$831FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$644Average$738FlexibilityNo cancel feeOn-time72%

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