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Cheap flights from Southampton to the United States from £350

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — LAX
23 Jul — 30 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to USA

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to USA
Explore the most affordable flight options available from Southampton to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 June 2026.

Thu 2/709:20
SOU
-
IAD
1 stop11h 25m
Aer Lingus
Mon 6/721:00
IAD
-
SOU
1 stop14h 50m
Aer Lingus
Deal found 20/6£449
Sun 11/1009:20
SOU
-
LAX
1 stop17h 05m
British Airways
Tue 20/1020:10
LAX
-
SOU
1 stop15h 20m
British Airways
Deal found 19/6£484
Wed 21/1009:20
SOU
-
LAX
1 stop17h 05m
British Airways
Sat 21/1120:15
LAX
-
SOU
1 stop28h 25m
British Airways
Deal found 19/6£491
Mon 9/1109:20
SOU
-
LAX
1 stop17h 10m
British Airways
Sat 14/1120:15
LAX
-
SOU
1 stop28h 25m
British Airways
Deal found 18/6£493
Thu 17/920:00
SOU
-
LAX
1 stop30h 25m
British Airways
Thu 8/1020:10
LAX
-
SOU
1 stop15h 20m
British Airways
Deal found 18/6£498
Fri 18/920:00
SOU
-
LAX
1 stop30h 25m
British Airways
Fri 9/1020:10
LAX
-
SOU
1 stop28h 25m
British Airways
Deal found 19/6£503
Thu 9/709:20
SOU
-
JFK
1 stop18h 05m
Aer Lingus
Sat 25/723:55
JFK
-
SOU
1 stop14h 35m
Aer Lingus
Deal found 19/6£508
Thu 2/709:20
SOU
-
JFK
1 stop18h 05m
Aer Lingus
Sat 18/723:55
JFK
-
SOU
1 stop11h 55m
Aer Lingus
Deal found 20/6£509
Wed 8/709:20
SOU
-
IAD
1 stop14h 55m
British Airways
Fri 24/717:15
IAD
-
SOU
1 stop18h 35m
British Airways
Deal found 19/6£511
Thu 29/1009:20
SOU
-
IAD
1 stop15h 10m
British Airways
Thu 5/1117:05
IAD
-
SOU
1 stop10h 35m
British Airways
Deal found 19/6£512
Sat 21/1109:20
SOU
-
JFK
1 stop15h 05m
British Airways
Fri 27/1121:10
JFK
-
SOU
1 stop14h 25m
British Airways
Deal found 19/6£512
Tue 1/1209:20
SOU
-
EWR
1 stop11h 55m
British Airways
Wed 9/1217:45
EWR
-
SOU
1 stop17h 50m
British Airways
Deal found 19/6£514

Find flight deals from Southampton to USA

Keep the following information in mind while searching for Southampton to USA flight deals. Data was last updated 23 June 2026.

Round-trip from

£484

One-way from

£350

Popular in

June

Cheapest in

September

Average price

£578
British Airways
  • British Airways
  • 11/10-20/10
  • 2 total stops
  • 32h 25m total
  • Southampton to USA
Search Deals
15/10
  • 15/10
  • 3 total stops
  • 32h 55m total
  • Southampton to USA
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£63 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to USA 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 23 June 2026.
Use the filters below to find and compare flights from Southampton to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sun 11/10

09:20-18:25

1 stop17h 05m

Los Angeles

Tue 20/10

20:10-19:30

1 stop15h 20m

£484

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 9/11

09:20-18:30

1 stop17h 10m

Los Angeles

Sat 14/11

20:15-08:40

1 stop28h 25m

£493

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 17/9

20:00-18:25

1 stop30h 25m

Los Angeles

Thu 8/10

20:10-19:30

1 stop15h 20m

£498

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 29/10

09:20-20:30

1 stop15h 10m

Washington, D.C. Dulles Intl

Thu 5/11

17:05-08:40

1 stop10h 35m

£511

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Sat 21/11

09:20-19:25

1 stop15h 05m

New York John F Kennedy Intl

Fri 27/11

21:10-16:35

1 stop14h 25m

£512

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Tue 1/12

09:20-16:15

1 stop11h 55m

Newark

Wed 9/12

17:45-16:35

1 stop17h 50m

£514

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 2/11

09:20-19:25

1 stop15h 05m

New York John F Kennedy Intl

Sun 8/11

21:10-19:30

1 stop17h 20m

£517

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Sat 21/11

17:05-16:15

1 stop28h 10m

Newark

Fri 27/11

17:45-08:40

1 stop9h 55m

£521

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 6/8

09:20-15:45

1 stop11h 25m

Washington, D.C. Dulles Intl

Thu 13/8

20:40-19:30

1 stop17h 50m

£527

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Thu 17/9

17:20-16:05

1 stop27h 45m

Newark

Thu 8/10

17:35-08:40

1 stop10h 05m

£530

Flights are sorted by cheapest return flights first.

Deals found on 20/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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6

Best time to book a flight from Southampton to USA

Have a flexible travel schedule? Discover the best time to fly to USA 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 the United States

What is the cheapest month to book a flight from Southampton to USA?

Currently, February is the cheapest month in which you can book a flight from Southampton to USA (average of £331). Flying from Southampton to USA in October is currently the most expensive (average of £671). 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.

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. 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 USA. Reviews last updated 23 June 2026.
See what other customers who have flown with Aer Lingus from Southampton to the United States have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,615 reviews
Check prices

Crew

8.1

Food

6.7

Entertainment

7.0

Boarding

7.4

Comfort

7.2

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Aer Lingus
7.3
Good
1,615 reviews
Aer Lingus
7.3
Good
1,615 reviews
Check prices

Crew

8.1

Food

6.7

Entertainment

7.0

Boarding

7.4

Comfort

7.2

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Related info for your journey

Find useful and relevant information for your journey from Southampton to USA. 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 United States?

    Most people fly from Southampton Eastleigh (SOU) if they book a flight from Southampton to United States. Southampton Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.

  • How long is the flight from Southampton to USA?

    British Airways, Delta, and KLM can get you from Southampton to USA in just under 13h 30m. Your travel time can differ by up to 4h 45m. The distance between Southampton and USA is about 5434 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Southampton to USA?

    Most travelers choose Southampton Eastleigh - New York John F Kennedy Intl, Southampton Eastleigh - Newark or Southampton Eastleigh - Los Angeles when deciding on the best route from Southampton to USA.

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

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

  • How can I find direct flights from Southampton to USA?

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

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

    Yes. Cheapflights offers flight deals from Southampton to USA 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 Southampton to USA?

    Currently, February is the cheapest month in which you can book a flight from Southampton to USA (average of £331). Flying from Southampton to USA in October is currently the most expensive (average of £671). 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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Fly with Cheapflights

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How does Cheapflights help users find flights from Southampton to USA?

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

Yes, we can. To see specific flights from Southampton to USA with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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