$489+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SOU
Mar 6 — Mar 131
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Riverside to Southampton 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 Riverside to Southampton
Cheapest
Best
Last-minute
One-way
Cheapest flights from Riverside to SouthamptonExplore 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 February 4, 2026.
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 February 4, 2026.
This Delta deal was found by Cheapflights users on 2/2. 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 3/51:45 pm
LAX
- SOU
1 stop19h 15m
Delta
Wed 3/115:35 pm
SOU
- LAX
1 stop26h 10m
Delta
Deal found 2/2![Delta logo]()
$759
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 3/61:45 pm
LAX
- SOU
1 stop19h 15m
Delta
Tue 3/108:50 am
SOU
- LAX
2 stops20h 55m
Delta
Deal found 2/2![Delta logo]()
$769
This Delta deal was found by Cheapflights users on 2/2. 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 3/1511:59 pm
LAX
- SOU
2 stops25h 21m
Delta
Wed 3/258:50 am
SOU
- LAX
2 stops23h 06m
Delta
Deal found 2/2![Delta logo]()
$773
This Delta deal was found by Cheapflights users on 2/2. 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 4/194:45 pm
LAX
- SOU
1 stop16h 05m
Delta
Wed 4/295:20 pm
SOU
- LAX
1 stop26h 30m
Delta
Deal found 2/2![Delta logo]()
$774
This Delta deal was found by Cheapflights users on 2/2. 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 3/304:45 pm
LAX
- SOU
1 stop16h 05m
Delta
Thu 4/165:20 pm
SOU
- LAX
1 stop29h 25m
Delta
Deal found 2/2![Delta logo]()
$775
This Delta deal was found by Cheapflights users on 2/3. 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 5/38:10 am
LAX
- SOU
2 stops16h 25m
Delta
Wed 5/139:05 am
SOU
- LAX
1 stop13h 40m
Delta
Deal found 2/3![Delta logo]()
$776
This Delta deal was found by Cheapflights users on 2/2. 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 4/1811:59 pm
LAX
- SOU
2 stops24h 36m
Delta
Thu 4/305:20 pm
SOU
- LAX
1 stop26h 30m
Delta
Deal found 2/2![Delta logo]()
$778
This Delta deal was found by Cheapflights users on 2/2. 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 3/2911:59 pm
LAX
- SOU
2 stops24h 36m
Delta
Wed 4/159:05 am
SOU
- LAX
1 stop13h 40m
Delta
Deal found 2/2![Delta logo]()
$779
This Delta deal was found by Cheapflights users on 2/2. 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 3/304:45 pm
LAX
- SOU
1 stop16h 05m
Delta
Mon 4/135:20 pm
SOU
- LAX
2 stops31h 34m
Delta
Deal found 2/2![Delta logo]()
$784
This Delta deal was found by Cheapflights users on 2/2. 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 4/17:00 am
LAX
- SOU
2 stops17h 35m
Delta
Tue 4/149:05 am
SOU
- LAX
2 stops22h 22m
Delta
Deal found 2/2![Delta logo]()
$788
Best flights from Riverside to SouthamptonDiscover carefully curated flight deals from Riverside to Southampton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
Discover carefully curated flight deals from Riverside to Southampton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
This Delta deal was found by Cheapflights users on 2/2. 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 3/51:45 pm
LAX
- SOU
1 stop19h 15m
Delta
Tue 3/108:50 am
SOU
- LAX
1 stop34h 55m
Delta
Deal found 2/2![Delta logo]()
$759
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 3/61:45 pm
LAX
- SOU
1 stop19h 15m
Delta
Tue 3/108:50 am
SOU
- LAX
1 stop34h 55m
Delta
Deal found 2/2![Delta logo]()
$759
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 3/61:45 pm
LAX
- SOU
1 stop19h 15m
Delta
Wed 3/115:35 pm
SOU
- LAX
1 stop26h 10m
Delta
Deal found 2/2![Delta logo]()
$759
This Delta deal was found by Cheapflights users on 2/2. 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 3/51:45 pm
LAX
- SOU
1 stop19h 15m
Delta
Wed 3/115:35 pm
SOU
- LAX
1 stop26h 10m
Delta
Deal found 2/2![Delta logo]()
$759
This Delta deal was found by Cheapflights users on 2/2. 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 3/1711:59 pm
LAX
- SOU
2 stops25h 21m
Delta
Tue 3/248:50 am
SOU
- LAX
2 stops20h 15m
Delta
Deal found 2/2![Delta logo]()
$773
This Delta deal was found by Cheapflights users on 2/2. 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 3/1810:40 am
LAX
- SOU
2 stops23h 45m
Delta
Tue 3/248:50 am
SOU
- LAX
2 stops20h 15m
Delta
Deal found 2/2![Delta logo]()
$773
This Delta deal was found by Cheapflights users on 2/2. 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 3/1711:59 pm
LAX
- SOU
2 stops25h 21m
Delta
Wed 3/258:50 am
SOU
- LAX
2 stops23h 06m
Delta
Deal found 2/2![Delta logo]()
$773
This Delta deal was found by Cheapflights users on 2/2. 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 4/201:50 pm
LAX
- SOU
1 stop19h 00m
Delta
Thu 4/305:20 pm
SOU
- LAX
1 stop26h 30m
Delta
Deal found 2/2![Delta logo]()
$774
This Delta deal was found by Cheapflights users on 2/2. 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 4/224:45 pm
LAX
- SOU
1 stop16h 05m
Delta
Wed 4/299:05 am
SOU
- LAX
1 stop13h 40m
Delta
Deal found 2/2![Delta logo]()
$774
This Delta deal was found by Cheapflights users on 2/2. 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 4/221:50 pm
LAX
- SOU
1 stop34h 45m
Delta
Thu 4/305:20 pm
SOU
- LAX
1 stop26h 30m
Delta
Deal found 2/2![Delta logo]()
$774
This Delta deal was found by Cheapflights users on 2/2. 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 4/194:45 pm
LAX
- SOU
1 stop16h 05m
Delta
Thu 4/309:05 am
SOU
- LAX
1 stop13h 40m
Delta
Deal found 2/2![Delta logo]()
$774
Last-minute flights from Riverside to SouthamptonDiscover last-minute flight deals from Riverside to Southampton. Data last updated February 4, 2026 and is based on user searches.
Discover last-minute flight deals from Riverside to Southampton. Data last updated February 4, 2026 and is based on user searches.
This British Airways deal was found by Cheapflights users on 2/3. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/143:30 pm
LAX
- SOU
2 stops18h 15m
British Airways
Tue 2/178:30 pm
SOU
- LAX
2 stops26h 50m
British Airways
Deal found 2/3![British Airways logo]()
$6,167
One-way flights from Riverside to SouthamptonSearch for one-way flight options from Riverside to Southampton. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
Search for one-way flight options from Riverside to Southampton. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
This Delta deal was found by Cheapflights users on 2/3. 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 7/261:50 pm
LAX
- SOU
1 stop34h 55m
Delta
Deal found 2/3![Delta logo]()
$489
This Delta deal was found by Cheapflights users on 2/2. 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 4/14:45 pm
LAX
- SOU
1 stop31h 50m
Delta
Deal found 2/2![Delta logo]()
$490
This Delta deal was found by Cheapflights users on 2/2. 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 4/21:50 pm
LAX
- SOU
1 stop34h 55m
Delta
Deal found 2/2![Delta logo]()
$540
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 4/311:59 pm
LAX
- SOU
2 stops24h 46m
Delta
Deal found 2/2![Delta logo]()
$544
This KAYAK deal was found by Cheapflights users on 2/2. 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.
Thu 7/308:10 pm
LAX
- SOU
1 stop28h 30m
Aer Lingus
Deal found 2/2![Aer Lingus logo]()
$620
This Delta deal was found by Cheapflights users on 2/1. 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 5/241:50 pm
LAX
- SOU
1 stop34h 45m
Delta
Deal found 2/1![Delta logo]()
$865
This Delta deal was found by Cheapflights users on 2/1. 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.
Fri 5/224:45 pm
LAX
- SOU
1 stop16h 05m
Delta
Deal found 2/1![Delta logo]()
$935
This Delta deal was found by Cheapflights users on 2/2. 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 6/271:50 pm
LAX
- SOU
1 stop19h 00m
Delta
Deal found 2/2![Delta logo]()
$986
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 February 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $759 (Delta) |
One-way from | $489 (Delta) |
Popular in | July |
Cheapest in | April |
Average price | $826 |
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 February 4, 2026.
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
Thu 3/5
1:45 pm-5:00 pm
1 stop19h 15m
Southampton Eastleigh
Tue 3/10
8:50 am-12:45 pm
1 stop34h 55m
$759
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
Fri 3/6
1:45 pm-5:00 pm
1 stop19h 15m
Southampton Eastleigh
Tue 3/10
8:50 am-12:45 pm
1 stop34h 55m
$759
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
Fri 3/6
1:45 pm-5:00 pm
1 stop19h 15m
Southampton Eastleigh
Wed 3/11
5:35 pm-12:45 pm
1 stop26h 10m
$759
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
Thu 3/5
1:45 pm-5:00 pm
1 stop19h 15m
Southampton Eastleigh
Wed 3/11
5:35 pm-12:45 pm
1 stop26h 10m
$759
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
Tue 3/17
11:59 pm-8:20 am
2 stops25h 21m
Southampton Eastleigh
Tue 3/24
8:50 am-10:05 pm
2 stops20h 15m
$773
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
Wed 3/18
10:40 am-5:25 pm
2 stops23h 45m
Southampton Eastleigh
Tue 3/24
8:50 am-10:05 pm
2 stops20h 15m
$773
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
Tue 3/17
11:59 pm-8:20 am
2 stops25h 21m
Southampton Eastleigh
Wed 3/25
8:50 am-12:56 am
2 stops23h 06m
$773
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
Mon 4/20
1:50 pm-4:50 pm
1 stop19h 00m
Southampton Eastleigh
Thu 4/30
5:20 pm-11:50 am
1 stop26h 30m
$774
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
Wed 4/22
4:45 pm-4:50 pm
1 stop16h 05m
Southampton Eastleigh
Wed 4/29
9:05 am-2:45 pm
1 stop13h 40m
$774
Los AngelesSouthampton
LAX - SOU
LAXSOU
Los Angeles
Wed 4/22
1:50 pm-8:35 am
1 stop34h 45m
Southampton Eastleigh
Thu 4/30
5:20 pm-11:50 am
1 stop26h 30m
$774
Showing 1-10 of 20 results
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.
LAX-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 Riverside to Southampton
R1V-SOU
LAX-SOU
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 $222). Flying from Riverside to Southampton in June is currently the most expensive (average of $574). 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 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 February 4, 2026.
Read reviews from past customers who have flown Delta, KLM, and Aer Lingus 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.
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
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.
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
Popular flights
Southampton flight routes
Top destinations
Alternative routes for Riverside to Southampton
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Southampton by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Riverside to Southampton by cabin class
Find flights from Riverside to Southampton, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Riverside and Southampton flights
Browse other Riverside and Southampton flight options. Last updated on February 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Southampton
Explore flights to Southampton departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 4, 2026.
Riverside to Southampton flights
Consider these flights traveling from Riverside to Southampton.
Top 3 airlines flying from Riverside to Southampton
Discover the top 3 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 February 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$684 | Average$800 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$771 | Average$1,111 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$797 | Average$1,086 | FlexibilityNo cancel fee | On-timeN/A |