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$300+ Cheap flights from Riverside, CA to Southampton (SOU)

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SOU
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Riverside to Southampton

Cheapest flights from Riverside to Southampton
Explore the most affordable flight options available from Riverside to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Delta deal was found by Cheapflights users on 12/14. 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 12/157:20 amLAX - SOU
2 stops25h 40mDelta
Tue 12/235:30 pmSOU - LAX
1 stop26h 15mDelta
Deal found 12/14$1,031
This Delta deal was found by Cheapflights users on 12/14. 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 12/157:20 amLAX - SOU
2 stops25h 40mDelta
Mon 12/226:05 pmSOU - LAX
2 stops37h 53mDelta
Deal found 12/14$1,042
This Delta deal was found by Cheapflights users on 12/14. 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 12/1411:55 pmLAX - SOU
2 stops24h 15mDelta
Tue 12/235:30 pmSOU - LAX
1 stop26h 15mDelta
Deal found 12/14$1,094
This Delta deal was found by Cheapflights users on 12/14. 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 12/147:40 amLAX - SOU
2 stops16h 30mDelta
Mon 12/226:05 pmSOU - LAX
2 stops37h 53mDelta
Deal found 12/14$1,105
This Delta deal was found by Cheapflights users on 12/14. 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 12/157:20 amLAX - SOU
2 stops25h 40mDelta
Sun 12/216:05 pmSOU - LAX
2 stops32h 35mDelta
Deal found 12/14$1,157
This Delta deal was found by Cheapflights users on 12/14. 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.
Wed 12/171:45 pmLAX - SOU
1 stop19h 40mDelta
Tue 12/238:40 amSOU - LAX
1 stop35h 05mDelta
Deal found 12/14$1,643
This Delta deal was found by Cheapflights users on 12/14. 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.
Wed 12/171:45 pmLAX - SOU
1 stop19h 40mDelta
Mon 12/226:05 pmSOU - LAX
1 stop25h 40mDelta
Deal found 12/14$1,708
This KAYAK deal was found by Cheapflights users on 12/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:15 pmLAX - SOU
1 stop28h 30mAer Lingus
Thu 1/88:10 pmSOU - LAX
1 stop30h 20mAer Lingus
Deal found 12/13$1,718
This Delta deal was found by Cheapflights users on 12/14. 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 12/161:45 pmLAX - SOU
1 stop19h 15mDelta
Wed 12/245:30 pmSOU - LAX
1 stop26h 15mDelta
Deal found 12/14$1,773
This Delta deal was found by Cheapflights users on 12/14. 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 12/181:45 pmLAX - SOU
1 stop35h 05mDelta
Wed 12/248:40 amSOU - LAX
1 stop35h 05mDelta
Deal found 12/14$2,038
This Delta deal was found by Cheapflights users on 12/14. 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.
Wed 12/171:45 pmLAX - SOU
1 stop34h 20mDelta
Sun 12/219:30 amSOU - LAX
1 stop34h 15mDelta
Deal found 12/14$2,132

Find flight deals from Riverside to Southampton

Keep the following information in mind while searching for Riverside to Southampton flight deals. Data was last updated December 15, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$748
(Delta)

One-way from

$300
(Kiwi.com)

Popular in

January

Cheapest in

April

Average price

$978
Provider with most accurate pricing for Los Angeles-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-London (LON) flights.
Search Deals
From Riverside to Southampton Eastleigh
Search Deals
One-way flight from Riverside to Southampton Eastleigh
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($200 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($115 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside to Southampton 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 December 15, 2025.
Use the filters below to find and compare flights from Riverside to Southampton that are best for you.

Fly from

Riverside

Fly to

Southampton

Route

Depart

Return

Price

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Wed 1/14

1:45 pm-5:05 pm

1 stop19h 20m

Southampton Eastleigh

Wed 1/21

5:35 pm-11:45 am

1 stop26h 10m

$748

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Mon 1/12

1:45 pm-5:05 pm

1 stop19h 20m

Southampton Eastleigh

Wed 1/21

5:35 pm-11:45 am

1 stop26h 10m

$748

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Mon 3/2

1:45 pm-5:00 pm

1 stop19h 15m

Southampton Eastleigh

Sun 3/22

5:45 pm-12:45 pm

1 stop26h 00m

$748

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Tue 1/13

1:45 pm-5:05 pm

1 stop19h 20m

Southampton Eastleigh

Fri 1/23

5:35 pm-11:45 am

1 stop26h 10m

$748

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Thu 1/15

1:45 pm-5:05 pm

1 stop19h 20m

Southampton Eastleigh

Wed 1/21

5:35 pm-11:45 am

1 stop26h 10m

$748

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Wed 1/14

1:45 pm-5:05 pm

1 stop19h 20m

Southampton Eastleigh

Tue 1/20

5:35 pm-11:45 am

1 stop26h 10m

$748

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Wed 1/14

1:45 pm-5:05 pm

1 stop19h 20m

Southampton Eastleigh

Thu 1/22

5:35 pm-11:45 am

1 stop26h 10m

$748

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Thu 1/29

1:45 pm-5:05 pm

1 stop19h 20m

Southampton Eastleigh

Thu 2/5

5:35 pm-11:45 am

1 stop26h 10m

$748

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Tue 3/3

5:45 am-5:00 pm

2 stops27h 15m

Southampton Eastleigh

Fri 3/20

8:40 am-12:45 pm

1 stop35h 05m

$752

Los AngelesSouthampton

LAX - SOU

LAXSOU

Los Angeles

Sun 1/11

11:55 pm-8:50 am

2 stops24h 55m

Southampton Eastleigh

Fri 1/23

9:00 am-11:45 am

1 stop34h 45m

$752

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 17 results
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Best time to book a flight from Riverside to Southampton

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

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

Currently, October is the cheapest month in which you can book a flight from Riverside to Southampton (average of $226). Flying from Riverside to Southampton in June is currently the most expensive (average of $556). 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 R1V to SOU?

Find hourly flight availability from Riverside to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

It’s typically best to fly out from Riverside to Southampton in the evening. Doing so could potentially save you 23% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Riverside to Southampton?

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

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

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. 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 Southampton. Reviews last updated December 15, 2025.
Read reviews from past customers who have flown Delta, KLM, and Virgin Atlantic from Riverside to Southampton. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,010 reviews

Crew

8.5

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
7.9
Good
8,010 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.7
Good
1,432 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.5
Good
675 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.2
Good
1,394 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Riverside to Southampton. 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 into for flights to Southampton from Riverside?

    For a flight from Riverside to Southampton, you will be flying into Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city. Eastleigh is the only Southampton airport and it handles 0 inbound flights from Riverside per day. 4 airlines have flights to Southampton Eastleigh from Riverside on a regular basis.

  • How long is the flight from Riverside to Southampton?

    A quick flight from Riverside to Southampton can take about 19h 20m. Delta provides one of the quickest options available for as low as $748. The distance between Riverside and Southampton is about 5434 mi.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Riverside to Southampton (average of $226). Flying from Riverside to Southampton in June is currently the most expensive (average of $556). 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 4 airlines flying from Riverside to Southampton

Discover the top 4 airlines that operate flights from Riverside to Southampton. 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$684Average$800FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$771Average$1,108FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$797Average$1,086FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$802Average$1,186FlexibilityNo cancel feeOn-time72%

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