$1,102+ Cheap flights from Austin (AUS) to Portsmouth, England
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — LHR
Sep 21 — Sep 281
Round-trip
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
Best
Cheapest flights from Austin to PortsmouthExplore 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 August 22, 2026.
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 August 22, 2026.
This KLM deal was found by Cheapflights users on 8/18. 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.
Mon 10/56:05 pm -
1 stop16h 45m
Tue 10/139:05 am -
2 stops20h 05m
Deal found 8/18![KLM logo]()
$1,102
This Delta deal was found by Cheapflights users on 8/18. 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 10/512:00 pm -
2 stops22h 50m
Tue 10/139:05 am -
2 stops20h 05m
Deal found 8/18![Delta logo]()
$1,106
This Mytrip deal was found by Cheapflights users on 8/18. 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.
Mon 10/54:25 pm -
3 stops21h 05m
Tue 10/136:50 am -
2 stops19h 45m
Deal found 8/18![Multiple Airlines logo]()
$1,441
This Orbitz deal was found by Cheapflights users on 8/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:48 pm -
2 stops40h 02m
Sat 10/178:00 pm -
2 stops33h 13m
Deal found 8/19![Multiple Airlines logo]()
$5,622
This BusinessClass deal was found by Cheapflights users on 8/19. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:32 pm -
2 stops18h 18m
Fri 10/169:20 am -
2 stops18h 13m
Deal found 8/19![Multiple Airlines logo]()
$6,140
This AranGrant deal was found by Cheapflights users on 8/19. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:08 pm -
2 stops20h 42m
Fri 10/169:20 am -
2 stops18h 13m
Deal found 8/19![Multiple Airlines logo]()
$6,183
This Delta deal was found by Cheapflights users on 8/19. 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.
Thu 10/16:05 pm -
1 stop16h 45m
Wed 10/145:20 pm -
1 stop28h 50m
Deal found 8/19![Delta logo]()
$6,428
This BusinessClass deal was found by Cheapflights users on 8/19. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:32 pm -
2 stops18h 18m
Sun 10/189:20 am -
2 stops20h 52m
Deal found 8/19![Multiple Airlines logo]()
$7,360
This AranGrant deal was found by Cheapflights users on 8/19. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:08 pm -
2 stops20h 42m
Fri 10/169:20 am -
2 stops18h 13m
Deal found 8/19![Multiple Airlines logo]()
$7,458
Best flights from Austin to PortsmouthDiscover carefully curated flight deals from Austin to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
Discover carefully curated flight deals from Austin to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
This Virgin Atlantic deal was found by Cheapflights users on 8/18. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:05 pm -
1 stop16h 45m
Tue 10/139:05 am -
2 stops20h 05m
Deal found 8/18![Virgin Atlantic logo]()
$1,102
This KLM deal was found by Cheapflights users on 8/18. 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.
Mon 10/56:05 pm -
1 stop16h 45m
Tue 10/139:05 am -
2 stops20h 05m
Deal found 8/18![KLM logo]()
$1,102
This Delta deal was found by Cheapflights users on 8/18. 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 10/512:00 pm -
2 stops22h 50m
Tue 10/139:05 am -
2 stops20h 05m
Deal found 8/18![Delta logo]()
$1,106
This Mytrip deal was found by Cheapflights users on 8/18. 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.
Mon 10/54:25 pm -
3 stops21h 05m
Tue 10/136:50 am -
2 stops19h 45m
Deal found 8/18![Multiple Airlines logo]()
$1,441
This Orbitz deal was found by Cheapflights users on 8/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:48 pm -
2 stops40h 02m
Sat 10/178:00 pm -
2 stops33h 13m
Deal found 8/19![Multiple Airlines logo]()
$5,622
This Delta deal was found by Cheapflights users on 8/19. 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 10/56:05 pm -
1 stop16h 45m
Wed 10/145:20 pm -
1 stop28h 50m
Deal found 8/19![Delta logo]()
$6,428
This BusinessClass deal was found by Cheapflights users on 8/19. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:32 pm -
2 stops18h 18m
Fri 10/169:20 am -
2 stops18h 13m
Deal found 8/19![Multiple Airlines logo]()
$6,140
This Delta deal was found by Cheapflights users on 8/19. 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.
Thu 10/16:05 pm -
1 stop16h 45m
Wed 10/145:20 pm -
1 stop28h 50m
Deal found 8/19![Delta logo]()
$6,428
This AranGrant deal was found by Cheapflights users on 8/19. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:08 pm -
2 stops20h 42m
Fri 10/169:20 am -
2 stops18h 13m
Deal found 8/19![Multiple Airlines logo]()
$6,183
This Delta deal was found by Cheapflights users on 8/19. 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 10/36:05 pm -
1 stop32h 30m
Wed 10/145:20 pm -
1 stop28h 50m
Deal found 8/19![Delta logo]()
$6,428
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 August 22, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,102 (KLM) |
Popular in | June |
Cheapest in | March |
Average price | $932 |
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 7,457,451 searches. Data last updated August 22, 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
Cheapest round-trip
AustinSouthampton
AUS Austin Bergstrom - SOU Southampton Eastleigh
AUSSOU
Austin Bergstrom
Mon 10/5
6:05 pm-4:50 pm
1 stop16h 45m
Southampton Eastleigh
Tue 10/13
9:05 am-11:10 pm
2 stops20h 05m
$1,102
AustinSouthampton
AUS Austin Bergstrom - SOU Southampton Eastleigh
AUSSOU
Austin Bergstrom
Mon 10/5
6:05 pm-4:50 pm
1 stop16h 45m
Southampton Eastleigh
Tue 10/13
9:05 am-11:10 pm
2 stops20h 05m
$1,102
AustinSouthampton
AUS Austin Bergstrom - SOU Southampton Eastleigh
AUSSOU
Austin Bergstrom
Mon 10/5
12:00 pm-4:50 pm
2 stops22h 50m
Southampton Eastleigh
Tue 10/13
9:05 am-11:10 pm
2 stops20h 05m
$1,106
AustinSouthampton
AUS Austin Bergstrom - SOU Southampton Eastleigh
AUSSOU
Austin Bergstrom
Mon 10/5
4:25 pm-7:30 pm
3 stops21h 05m
Southampton Eastleigh
Tue 10/13
6:50 am-8:35 pm
2 stops19h 45m
$1,441
AustinSouthampton
AUS Austin Bergstrom - SOU Southampton Eastleigh
AUSSOU
Austin Bergstrom
Fri 10/2
6:48 pm-4:50 pm
2 stops40h 02m
Southampton Eastleigh
Sat 10/17
8:00 pm-11:13 pm
2 stops33h 13m
$5,622
Quickest round-trip
AustinSouthampton
AUS Austin Bergstrom - SOU Southampton Eastleigh
AUSSOU
Austin Bergstrom
Sat 10/3
4:32 pm-4:50 pm
2 stops18h 18m
Southampton Eastleigh
Fri 10/16
9:20 am-9:33 pm
2 stops18h 13m
$6,140
AustinSouthampton
AUS Austin Bergstrom - SOU Southampton Eastleigh
AUSSOU
Austin Bergstrom
Thu 10/1
2:08 pm-4:50 pm
2 stops20h 42m
Southampton Eastleigh
Fri 10/16
9:20 am-9:33 pm
2 stops18h 13m
$6,183
AustinSouthampton
AUS Austin Bergstrom - SOU Southampton Eastleigh
AUSSOU
Austin Bergstrom
Mon 10/5
6:05 pm-4:50 pm
1 stop16h 45m
Southampton Eastleigh
Wed 10/14
5:20 pm-4:10 pm
1 stop28h 50m
$6,428
AustinSouthampton
AUS Austin Bergstrom - SOU Southampton Eastleigh
AUSSOU
Austin Bergstrom
Thu 10/1
6:05 pm-4:50 pm
1 stop16h 45m
Southampton Eastleigh
Wed 10/14
5:20 pm-4:10 pm
1 stop28h 50m
$6,428
AustinSouthampton
AUS Austin Bergstrom - SOU Southampton Eastleigh
AUSSOU
Austin Bergstrom
Sat 10/3
6:05 pm-8:35 am
1 stop32h 30m
Southampton Eastleigh
Wed 10/14
5:20 pm-4:10 pm
1 stop28h 50m
$6,428
Sorted by cheapest first
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.
AUS-SOU
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
AUS-P0R
AUS-SOU
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 August 22, 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.
Weekly flight availability from Austin to Portsmouth
Explore weekly flight availability from Austin to Portsmouth. 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 August 22, 2026.
The most flights from AUS to P0R are scheduled on a Wednesday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).
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.
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Austin
Popular flights
Top destinations
Alternative routes for Austin to Portsmouth
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Portsmouth by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Austin to Portsmouth by cabin class
Find flights from Austin to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Austin and Portsmouth flights
Browse other Austin and Portsmouth flight options. Last updated on August 22, 2026.
Other flights from Austin
Browse through other flights departing from Austin. Flights are based on user searches made on Cheapflights and were last updated on August 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Austin to Portsmouth flights
Consider these flights traveling from Austin to Portsmouth.
Top 9 airlines flying from Austin to Portsmouth
Discover the top 9 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 7,457,451 searches. Data last updated August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$393 | Average$752 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$568 | Average$860 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$581 | Average$717 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$618 | Average$992 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$624 | Average$1,059 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$639 | Average$970 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$647 | Average$881 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$663 | Average$1,185 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$703 | Average$1,351 | FlexibilityNo cancel fee | On-time62% |