HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
United Kingdom

$178+ Cheap flights from Riverside, CA to the United Kingdom

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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Riverside to United Kingdom 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 United Kingdom

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

Round-trip from

$500
(Gurufare)

One-way from

$178
(Booking.com)

Popular in

December

Cheapest in

September

Average price

$604
From Riverside to United Kingdom
Search Deals
One-way flight from Riverside to United Kingdom
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Riverside to United Kingdom

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

This Gurufare deal was found by Cheapflights users on 9/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/184:40 pmLAX - LHR
1 stop21h 20mTAP AIR PORTUGAL
vie. 10/317:55 pmLHR - LAX
1 stop27h 05mTAP AIR PORTUGAL
Deal found 9/14$500
This Connections by easyJet deal was found by Cheapflights users on 9/15. 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 Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/172:30 pmLAX - LGW
1 stop38h 15mMultiple Airlines
sáb. 11/226:55 amLGW - LAX
1 stop21h 30mMultiple Airlines
Deal found 9/15$501
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/13. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/244:40 pmLAX - LHR
1 stop21h 20mTAP AIR PORTUGAL
vie. 10/317:55 pmLHR - LAX
1 stop27h 05mTAP AIR PORTUGAL
Deal found 9/13$502
This Norse Atlantic Airways deal was found by Cheapflights users on 9/13. 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 Norse Atlantic Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/104:30 pmLAX - LGW
Nonstop10h 25mNorse Atlantic UK
vie. 10/1710:55 amLGW - LAX
Nonstop11h 15mNorse Atlantic UK
Deal found 9/13$502
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/172:30 pmLAX - LTN
1 stop34h 00mMultiple Airlines
sáb. 11/229:25 amLTN - LAX
1 stop19h 00mMultiple Airlines
Deal found 9/15$504
This Gurufare deal was found by Cheapflights users on 9/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/184:40 pmLAX - LGW
1 stop33h 05mTAP AIR PORTUGAL
vie. 10/314:40 pmLGW - LAX
1 stop30h 20mTAP AIR PORTUGAL
Deal found 9/14$504
This Mytrip deal was found by Cheapflights users on 9/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/34:30 pmLAX - LGW
Nonstop10h 25mNorse Atlantic UK
vie. 10/1710:55 amLGW - LAX
Nonstop11h 15mNorse Atlantic UK
Deal found 9/13$506
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/15. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/244:40 pmLAX - LGW
1 stop34h 10mTAP AIR PORTUGAL
vie. 10/314:40 pmLGW - LAX
1 stop30h 20mTAP AIR PORTUGAL
Deal found 9/15$507
This Gurufare deal was found by Cheapflights users on 9/13. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/194:40 pmLAX - LHR
1 stop22h 15mTAP AIR PORTUGAL
vie. 10/318:15 amLHR - LAX
1 stop38h 45mTAP AIR PORTUGAL
Deal found 9/13$508
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/124:30 pmLAX - LGW
Nonstop10h 25mNorse Atlantic UK
mié. 10/2210:55 amLGW - LAX
Nonstop11h 15mNorse Atlantic UK
Deal found 9/14$508
This Norse Atlantic Airways deal was found by Cheapflights users on 9/13. 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 Norse Atlantic Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/244:30 pmLAX - LGW
Nonstop10h 25mNorse Atlantic UK
mié. 10/2210:55 amLGW - LAX
Nonstop11h 15mNorse Atlantic UK
Deal found 9/13$510
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/145:15 pmLAX - LGW
1 stop20h 10mMultiple Airlines
sáb. 11/226:55 amLGW - LAX
1 stop21h 30mMultiple Airlines
Deal found 9/15$511

Cheapflights Fare Finder

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

Fly from

Riverside

Fly to

United Kingdom

Route

Depart

Return

Price

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles

dom. 11/9

8:45 am-11:30 am

2 stops18h 45m

London Stansted

mar. 11/18

8:25 pm-4:35 pm

2 stops28h 10m

$519

Los AngelesLondon

LAX - LTN

LAXLTN

Los Angeles

jue. 11/13

1:00 pm-9:05 pm

1 stop24h 05m

London Luton

jue. 11/20

9:50 pm-3:15 pm

1 stop25h 25m

$527

Los AngelesLondon

LAX - STN

LAXSTN

Los Angeles

mar. 11/11

8:45 am-1:50 pm

2 stops21h 05m

London Stansted

mar. 11/18

8:25 pm-4:35 pm

2 stops28h 10m

$537

Los AngelesLondon

LAX - LGW

LAXLGW

Los Angeles

mar. 11/18

6:50 pm-10:35 pm

1 stop19h 45m

London Gatwick

dom. 11/23

7:25 am-12:30 pm

1 stop37h 05m

$548

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

mié. 9/24

4:40 pm-11:10 am

Nonstop10h 30m

London Heathrow

mié. 10/22

8:40 am-4:30 pm

1 stop15h 50m

$554

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

mar. 11/4

5:45 pm-12:20 pm

Nonstop10h 35m

London Heathrow

mar. 11/25

10:20 am-5:05 pm

1 stop14h 45m

$557

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

jue. 10/30

4:25 pm-9:40 pm

2 stops22h 15m

London Heathrow

jue. 11/6

6:40 am-5:00 pm

1 stop18h 20m

$558

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

mié. 12/3

10:25 am-8:15 am

1 stop13h 50m

London Heathrow

mar. 12/16

7:30 am-5:05 pm

1 stop17h 35m

$561

Los AngelesGlasgow

LAX - GLA

LAXGLA

Los Angeles

mar. 10/14

9:30 pm-7:40 pm

1 stop14h 10m

Glasgow Intl

mar. 10/28

9:50 am-9:15 pm

1 stop18h 25m

$562

Los AngelesGlasgow

LAX - GLA

LAXGLA

Los Angeles

mié. 10/15

9:30 pm-7:45 pm

1 stop14h 15m

Glasgow Intl

mié. 10/22

8:40 am-8:15 pm

1 stop19h 35m

$563

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Riverside to United Kingdom

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

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

Currently, November is the cheapest month in which you can book a flight from Riverside to United Kingdom (average of $661). Flying from Riverside to United Kingdom in June is currently the most expensive (average of $1,097). 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 GB?

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

When flying from Riverside to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Riverside to United Kingdom

Explore weekly flight availability from Riverside to United Kingdom. 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 septiembre 15, 2025.

The most flights from R1V to GB0 are scheduled on a Monday (56 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (52 on average).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated septiembre 15, 2025.
Peruse reviews from past customers who have flown with Delta, American Airlines, and Norse Atlantic UK from Riverside to the United Kingdom to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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.
Norse Atlantic UK
7.1
Good
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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.
Iberia
7.0
Good
2,924 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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.
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

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 United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Riverside to United Kingdom?

    There are many flights that can get you from Riverside to United Kingdom in 10h 30m. Fly via United Airlines, Finnair, or Scandinavian Airlines to get the fastest option. Riverside and United Kingdom are separated by a distance of 5439 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Riverside to United Kingdom one-way?

    For one-way options, check prices for Norse Atlantic UK. According to our data, you can fly for as low as $179. Users have also found prices from $180 and $243 on TAP AIR PORTUGAL and WestJet, respectively.

  • What are the most popular routes from Riverside to United Kingdom?

    The most popular flight routes from Riverside to United Kingdom are Los Angeles - London Heathrow, Los Angeles - London City and Los Angeles - London Gatwick.

  • What are the most reliable airlines from Riverside to United Kingdom?

    The top 3 most reliable airlines when flying from Riverside to United Kingdom are KLM (94%), Air France (94%) and Delta (94%).

  • What are the cheapest flights from Riverside to United Kingdom?

    Looking at all options, your cheapest flight can be booked for $347. While the most popular route (Los Angeles - London Heathrow) can be booked for $479 on average, our data indicates $3,098 when flying from Riverside to United Kingdom.

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

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

  • How can I find direct flights from Riverside to United Kingdom?

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

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

    Yes. Cheapflights offers flight deals from Riverside to United Kingdom 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 United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Riverside to United Kingdom (average of $661). Flying from Riverside to United Kingdom in June is currently the most expensive (average of $1,097). 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

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 for Riverside to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to Charles de Gaulle flights
San Francisco to Charles de Gaulle flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
San Francisco to Leonardo da Vinci/Fiumicino flights
Los Angeles to London City flights
Los Angeles to Istanbul flights
Los Angeles to Frankfurt flights
Los Angeles to Barcelona-El Prat flights
San Francisco to Barcelona-El Prat flights
San Francisco to Istanbul flights
San Francisco to Lisbon flights
Los Angeles to Madrid flights
Los Angeles to Gatwick flights
Los Angeles to Orly flights
San Francisco to Gatwick flights
San Francisco to London City flights
San Francisco to Orly flights
San Diego to Heathrow flights
San Francisco to Madrid flights
Los Angeles to Dublin flights
San Francisco to Dublin flights
Los Angeles to Amsterdam flights
San Francisco to Frankfurt flights
San Francisco to Zurich flights
San Francisco to Amsterdam flights
Ontario to Heathrow flights
Ontario to Charles de Gaulle flights
Ontario to Leonardo da Vinci/Fiumicino flights
Los Angeles to Stansted flights
Los Angeles to Zurich flights
San Francisco to Munich flights
Santa Ana to Leonardo da Vinci/Fiumicino flights
Los Angeles to Lisbon flights
Los Angeles to Luton flights
Santa Ana to Heathrow flights
Los Angeles to Munich flights
Los Angeles to Malpensa flights
San Francisco to Malpensa flights
San Francisco to Athens flights
Los Angeles to Athens flights
San Francisco to Linate flights
Santa Ana to Charles de Gaulle flights
Burbank to Charles de Gaulle flights
Los Angeles to Sabiha Gokcen flights
Las Vegas to Heathrow flights
Los Angeles to Copenhagen flights
Los Angeles to Linate flights
Los Angeles to Frederic Chopin flights

Top 10 airlines flying from Riverside to United Kingdom

Discover the top 10 airlines that operate flights from Riverside to United Kingdom. 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$272Average$983FlexibilityNo cancel feeOn-time60%
JetBlueCheapest$273Average$904FlexibilityNo cancel feeOn-time62%
SWISSCheapest$336Average$747FlexibilityNo cancel feeOn-time79%
Norse Atlantic UKCheapest$360Average$681FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$363Average$944FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$375Average$651FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$419Average$593FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$469Average$1,000FlexibilityNo cancel feeOn-time72%
Aer LingusCheapest$475Average$863FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$490Average$703FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.