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Cheap flights from Southampton to Buenos Aires from £515

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — BUE
11 Sep — 18 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Buenos Aires

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Buenos Aires
Explore the most affordable flight options available from Southampton to Buenos Aires. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 August 2026.

Thu 3/909:05 -
2 stops28h 40m
Mon 7/920:10 -
2 stops40h 40m
Deal found 12/8£1,292
Thu 3/915:25 -
3 stops43h 20m
Mon 7/906:00 -
3 stops30h 50m
Deal found 12/8£1,373
Thu 3/909:05 -
2 stops28h 40m
Sun 6/920:10 -
2 stops40h 40m
Deal found 12/8£1,376
Thu 3/909:05 -
1 stop24h 45m
Mon 7/915:05 -
1 stop21h 45m
Deal found 12/8£1,402
Thu 3/917:20 -
2 stops47h 05m
Sun 6/915:05 -
1 stop37h 30m
Deal found 12/8£1,442
Thu 3/915:25 -
3 stops43h 20m
Sat 5/902:45 -
3 stops34h 05m
Deal found 12/8£1,443
Wed 9/909:15 -
3 stops41h 10m
Tue 15/923:55 -
3 stops36h 55m
Deal found 11/8£3,814

Find flight deals from Southampton to Buenos Aires

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to Buenos Aires (BUE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 August 2026.

Round-trip from

£3,814

One-way from

£515

Popular in

December

Cheapest in

September

Average price

£1,076
9/9-15/9
  • 9/9-15/9
  • 6 total stops
  • 78h 05m total
  • Southampton to Buenos Aires
Search Deals
2/9
  • 2/9
  • 3 total stops
  • 56h 40m total
  • Southampton to Buenos Aires
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Buenos Aires 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 12 August 2026.
Use the filters below to find and compare flights from Southampton to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonBuenos Aires

SOU Southampton Eastleigh - EZE Buenos Aires Ministro Pistarini

SOUEZE

Southampton Eastleigh

Thu 3/9

09:05-09:45

2 stops28h 40m

Buenos Aires Ministro Pistarini

Mon 7/9

20:10-16:50

2 stops40h 40m

£1,292

SouthamptonBuenos Aires

SOU Southampton Eastleigh - EZE Buenos Aires Ministro Pistarini

SOUEZE

Southampton Eastleigh

Thu 3/9

15:25-06:45

3 stops43h 20m

Buenos Aires Ministro Pistarini

Mon 7/9

06:00-16:50

3 stops30h 50m

£1,373

SouthamptonBuenos Aires

SOU Southampton Eastleigh - EZE Buenos Aires Ministro Pistarini

SOUEZE

Southampton Eastleigh

Thu 3/9

09:05-09:45

2 stops28h 40m

Buenos Aires Ministro Pistarini

Sun 6/9

20:10-16:50

2 stops40h 40m

£1,376

SouthamptonBuenos Aires

SOU Southampton Eastleigh - EZE Buenos Aires Ministro Pistarini

SOUEZE

Southampton Eastleigh

Thu 3/9

17:20-12:25

2 stops47h 05m

Buenos Aires Ministro Pistarini

Sun 6/9

15:05-08:35

1 stop37h 30m

£1,442

SouthamptonBuenos Aires

SOU Southampton Eastleigh - EZE Buenos Aires Ministro Pistarini

SOUEZE

Southampton Eastleigh

Wed 9/9

09:15-22:25

3 stops41h 10m

Buenos Aires Ministro Pistarini

Tue 15/9

23:55-16:50

3 stops36h 55m

£3,814
Fastest return journey

SouthamptonBuenos Aires

SOU Southampton Eastleigh - EZE Buenos Aires Ministro Pistarini

SOUEZE

Southampton Eastleigh

Wed 9/9

09:15-21:50

2 stops40h 35m

Buenos Aires Ministro Pistarini

Tue 15/9

15:05-16:50

1 stop21h 45m

£4,195
Cheapest one-way

SouthamptonBuenos Aires

SOU Southampton Eastleigh - EZE Buenos Aires Ministro Pistarini

SOUEZE

Southampton Eastleigh

Wed 2/9

15:35-20:15

3 stops56h 40m

£515
Fastest single journey

SouthamptonBuenos Aires

SOU Southampton Eastleigh - EZE Buenos Aires Ministro Pistarini

SOUEZE

Southampton Eastleigh

Wed 2/9

09:15-05:50

1 stop24h 35m

£920

SouthamptonBuenos Aires

SOU Southampton Eastleigh - EZE Buenos Aires Ministro Pistarini

SOUEZE

Southampton Eastleigh

Sun 27/12

09:30-07:35

2 stops49h 05m

£2,390

SouthamptonBuenos Aires

SOU Southampton Eastleigh - EZE Buenos Aires Ministro Pistarini

SOUEZE

Southampton Eastleigh

Tue 29/12

17:30-09:40

2 stops43h 10m

£2,390

Flights are sorted by cheapest return flights first.

Deals found on 12/8

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Best time to book a flight from Southampton to Buenos Aires

Have a flexible travel schedule? Discover the best time to fly to Buenos Aires from Southampton 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 Southampton to Buenos Aires

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Buenos Aires. 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 Southampton to Buenos Aires?

    Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly out of when you book flights from Southampton to Buenos Aires. 0 airlines have flights from Eastleigh to Buenos Aires on a regular basis. Booking flights from Southampton Eastleigh to Buenos Aires should not be difficult; the airport handles an average of 0 outbound flights to Buenos Aires per day.

  • How long is the flight from Southampton to Buenos Aires?

    There are many flights that can get you from Southampton to Buenos Aires in 28h 40m. Fly via Delta or KLM to get the fastest option. The distance from Southampton to Buenos Aires is about 6862 mi. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Southampton to Buenos Aires that include hotel bookings?

    Yes. In addition to deals on Southampton to Buenos Aires flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Southampton to Buenos Aires?

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

  • Can I find deals for business class flights from Southampton to Buenos Aires?

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

See more FAQs

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How does Cheapflights help users find flights from Southampton to Buenos Aires?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Southampton to Buenos Aires. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Buenos Aires?

Cheapflights helps you find that perfect flight to Buenos Aires from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Southampton to Buenos Aires with no change fees?

Certainly. Search results for flights to Buenos Aires from Southampton shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Southampton to Buenos Aires become cheaper?

Not ready to book yet? You can track prices for flights from Southampton to Buenos Aires on Cheapflights with our Price Alert feature and get notified when better prices are available.

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