HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portsmouth

$479+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — LHR
Apr 26 — May 31
Sun 4/26
Sun 5/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Austin to Portsmouth 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 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 March 27, 2026.

This Delta deal was found by Cheapflights users on 3/25. 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.
Mon 8/176:05 pm
AUS
-
SOU
1 stop17h 30m
Delta
Thu 9/39:05 am
SOU
-
AUS
1 stop13h 05m
Delta
Deal found 3/25$1,063
This Delta deal was found by Cheapflights users on 3/25. 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 8/1610:52 am
AUS
-
SOU
2 stops15h 53m
Delta
Thu 9/39:05 am
SOU
-
AUS
1 stop13h 05m
Delta
Deal found 3/25$1,068
This Delta deal was found by Cheapflights users on 3/25. 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.
Mon 8/176:05 pm
AUS
-
SOU
1 stop17h 30m
Delta
Mon 8/315:20 pm
SOU
-
AUS
2 stops28h 10m
Delta
Deal found 3/25$1,073
This Delta deal was found by Cheapflights users on 3/25. 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.
Tue 8/183:35 pm
AUS
-
SOU
2 stops20h 00m
Delta
Tue 9/15:20 pm
SOU
-
AUS
2 stops28h 27m
Delta
Deal found 3/25$1,077
This Delta deal was found by Cheapflights users on 3/25. 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 8/152:05 pm
AUS
-
SOU
2 stops36h 40m
Delta
Thu 9/39:05 am
SOU
-
AUS
1 stop13h 05m
Delta
Deal found 3/25$1,082
This Delta deal was found by Cheapflights users on 3/25. 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 8/152:05 pm
AUS
-
SOU
2 stops36h 40m
Delta
Fri 9/49:05 am
SOU
-
AUS
2 stops17h 17m
Delta
Deal found 3/25$1,086
This Delta deal was found by Cheapflights users on 3/25. 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.
Mon 5/46:05 pm
AUS
-
SOU
1 stop32h 30m
Delta
Wed 5/135:20 pm
SOU
-
AUS
1 stop28h 50m
Delta
Deal found 3/25$1,093
This Delta deal was found by Cheapflights users on 3/25. 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 5/37:20 am
AUS
-
SOU
2 stops19h 15m
Delta
Wed 5/135:20 pm
SOU
-
AUS
1 stop28h 50m
Delta
Deal found 3/25$1,098
This Delta deal was found by Cheapflights users on 3/25. 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.
Mon 5/46:05 pm
AUS
-
SOU
1 stop16h 45m
Delta
Mon 5/115:20 pm
SOU
-
AUS
2 stops29h 59m
Delta
Deal found 3/25$1,103
This Delta deal was found by Cheapflights users on 3/25. 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 5/35:12 am
AUS
-
SOU
2 stops21h 23m
Delta
Mon 5/115:20 pm
SOU
-
AUS
2 stops28h 35m
Delta
Deal found 3/25$1,107
This Delta deal was found by Cheapflights users on 3/25. 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 5/25:05 pm
AUS
-
SOU
2 stops33h 30m
Delta
Wed 5/135:20 pm
SOU
-
AUS
1 stop28h 50m
Delta
Deal found 3/25$1,110
This Delta deal was found by Cheapflights users on 3/25. 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 5/25:05 pm
AUS
-
SOU
2 stops33h 30m
Delta
Tue 5/129:05 am
SOU
-
AUS
2 stops17h 28m
Delta
Deal found 3/25$1,114

Find flight deals from Austin to Portsmouth

Keep the following information in mind while searching for Austin to Portsmouth flight deals. Data was last updated March 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,063
(Delta)

One-way from

$479
(Justfly.com)

Popular in

June

Cheapest in

February

Average price

$725
Provider with most accurate pricing for Austin Bergstrom-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-London (LON) flights.
Search Deals
From Austin Bergstrom to Portsmouth
Search Deals
One-way flight from Austin Bergstrom to Portsmouth
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($227 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 27, 2026.
Use the filters below to find and compare flights from Austin to Portsmouth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Mon 5/4

3:34 pm-8:35 am

2 stops35h 01m

Southampton Eastleigh

Wed 5/13

5:20 pm-4:10 pm

1 stop28h 50m

$1,098

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Mon 5/4

6:05 pm-4:50 pm

1 stop16h 45m

Southampton Eastleigh

Mon 5/11

5:20 pm-5:19 pm

2 stops29h 59m

$1,103

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Fri 8/21

5:30 am-8:45 am

2 stops21h 15m

Southampton Eastleigh

Mon 8/31

5:20 pm-3:30 pm

2 stops28h 10m

$1,127

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Tue 5/5

8:25 am-8:35 am

2 stops18h 10m

Southampton Eastleigh

Thu 5/7

9:05 am-8:33 pm

2 stops17h 28m

$1,161
Quickest round-trip

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Sun 5/24

7:30 am-8:35 am

2 stops19h 05m

Southampton Eastleigh

Wed 6/17

9:05 am-4:10 pm

1 stop13h 05m

$1,174

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Thu 4/16

6:05 pm-4:50 pm

1 stop16h 45m

Southampton Eastleigh

Wed 4/22

5:20 pm-4:10 pm

1 stop28h 50m

$1,187

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Thu 4/16

2:00 pm-4:50 pm

2 stops20h 50m

Southampton Eastleigh

Tue 4/21

9:05 am-10:39 pm

2 stops19h 34m

$1,201

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Thu 4/30

3:34 pm-4:50 pm

2 stops19h 16m

Southampton Eastleigh

Tue 5/12

9:05 am-8:33 pm

2 stops17h 28m

$1,204

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Fri 5/1

6:15 pm-4:50 pm

2 stops16h 35m

Southampton Eastleigh

Tue 5/12

9:05 am-10:35 pm

2 stops19h 30m

$1,204

AustinSouthampton

AUS - SOU

AUSSOU

Austin Bergstrom

Mon 5/25

10:38 am-8:35 am

2 stops39h 57m

Southampton Eastleigh

Tue 6/16

5:20 pm-6:54 pm

2 stops31h 34m

$1,250

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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, September is the cheapest month in which you can book a flight from Austin to Portsmouth (average of $526). Flying from Austin to Portsmouth in June is currently the most expensive (average of $826). 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 March 27, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Austin to Portsmouth as you normally would.

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 8 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 $1,063, Delta can have you in Portsmouth from Austin in 17h 30m. Airlines will cover a distance of 4881 mi.

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

    Consider American Airlines (76%), Aer Lingus (76%) or Finnair (76%) 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 $1,767 for a flight from Austin to Portsmouth. The cheapest flight overall is $316 while the most popular route, (Austin Bergstrom - Southampton Eastleigh) is currently priced at $1,068.

  • 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, September is the cheapest month in which you can book a flight from Austin to Portsmouth (average of $526). Flying from Austin to Portsmouth in June is currently the most expensive (average of $826). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 8 airlines flying from Austin to Portsmouth

Discover the top 8 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 March 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$545Average$809FlexibilityNo cancel feeOn-time71%
FinnairCheapest$567Average$909FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$567Average$860FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$604Average$859FlexibilityNo cancel feeOn-time70%
IberiaCheapest$609Average$904FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$624Average$1,000FlexibilityNo cancel feeOn-time76%
DeltaCheapest$644Average$884FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$646Average$770FlexibilityNo cancel feeOn-time72%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.