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$221+ Cheap flights from Riverside, CA to Heathrow (LHR)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to London Heathrow are usually found in September or October, booked 87 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Riverside to Heathrow

Keep the following information in mind while searching for Riverside to Heathrow flight deals. Data was last updated October 30, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$575
(Scandinavian Airlines)

One-way from

$221
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$668
Provider with most accurate pricing for Los Angeles-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-London (LON) flights.
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From Riverside to London Heathrow
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One-way flight from Riverside to London Heathrow
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Highest demand for flights based on searches. 9% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Riverside to Heathrow

Cheapest flights from Riverside to Heathrow
Explore the most affordable flight options available from Riverside to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 10/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:10 pmLAX - LHR
2 stops20h 30mScandinavian Airlines
Thu 12/119:05 pmLHR - LAX
2 stops27h 55mScandinavian Airlines
Deal found 10/28$575
This lol.travel deal was found by Cheapflights users on 10/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:45 pmLAX - LHR
Nonstop10h 35mFinnair
Tue 11/2510:20 amLHR - LAX
1 stop14h 45mFinnair
Deal found 10/28$577
This Gurufare deal was found by Cheapflights users on 10/28. 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.
Wed 11/1910:25 amLAX - LHR
1 stop14h 10mFinnair
Tue 11/257:30 amLHR - LAX
1 stop17h 35mFinnair
Deal found 10/28$579
This Cheapflightsfares deal was found by Cheapflights users on 10/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/44:45 pmLAX - LHR
1 stop21h 55mTAP AIR PORTUGAL
Tue 11/186:00 amLHR - LAX
1 stop17h 00mTAP AIR PORTUGAL
Deal found 10/30$581
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/53:55 pmLAX - LHR
1 stop16h 55mAer Lingus
Wed 11/129:50 amLHR - LAX
1 stop16h 40mAer Lingus
Deal found 10/28$582
This Booking.com deal was found by Cheapflights users on 10/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:15 pmLAX - LHR
1 stop16h 50mAer Lingus
Wed 11/57:50 amLHR - LAX
1 stop14h 20mAer Lingus
Deal found 10/30$586
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Sun 11/238:15 pmLAX - LHR
1 stop12h 35mAer Lingus
Thu 12/412:10 pmLHR - LAX
1 stop14h 20mAer Lingus
Deal found 10/28$587

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside to Heathrow 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 October 30, 2025.
Use the filters below to find and compare flights from Riverside to London Heathrow Airport that are best for you.

Fly from

Riverside

Fly to

Heathrow

Route

Depart

Return

Price

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 11/30

5:45 pm-12:20 pm

Nonstop10h 35m

London Heathrow

Tue 12/9

7:30 am-5:05 pm

1 stop17h 35m

$583

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Thu 1/15

4:45 pm-5:30 pm

1 stop16h 45m

London Heathrow

Sat 4/25

6:00 am-2:40 pm

1 stop16h 40m

$603

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sat 11/29

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Sat 12/6

6:35 am-3:15 pm

1 stop16h 40m

$604

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 3/4

7:30 pm-9:35 pm

2 stops18h 05m

London Heathrow

Sat 3/14

3:35 pm-6:00 pm

2 stops33h 25m

$606

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Mon 2/16

7:30 pm-9:35 pm

2 stops18h 05m

London Heathrow

Mon 2/23

9:05 pm-5:00 pm

2 stops27h 55m

$609

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 2/8

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Sat 2/21

6:35 am-3:15 pm

1 stop16h 40m

$612

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 2/11

7:30 pm-9:35 pm

2 stops18h 05m

London Heathrow

Mon 2/16

10:20 am-5:00 pm

1 stop14h 40m

$612

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 11/9

5:45 pm-12:20 pm

Nonstop10h 35m

London Heathrow

Tue 11/25

3:10 pm-6:30 pm

Nonstop11h 20m

$613

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 2/20

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Tue 2/24

6:35 am-3:15 pm

1 stop16h 40m

$613

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 1/21

7:00 pm-1:30 pm

Nonstop10h 30m

London Heathrow

Mon 1/26

6:35 am-3:15 pm

1 stop16h 40m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 23 results
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Best time to book a flight from Riverside to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 London Heathrow Airport

How far ahead should I book a flight from Riverside to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Heathrow. Price data was last updated on October 24, 2025.

The price you pay for your flight from Riverside to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Riverside to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Riverside to London Heathrow Airport (average of $436). Flying from Riverside to London Heathrow Airport in June is currently the most expensive (average of $699). 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 LHR?

Find hourly flight availability from Riverside to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

When flying from Riverside to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 4% versus a flight in the morning.

What is the cheapest day to fly from Riverside to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Riverside to Heathrow. Price data was last updated on October 19, 2025.

Travelers seeking maximum savings on their Riverside to London Heathrow Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated October 30, 2025.
Peruse reviews from past customers who have flown with Delta, Virgin Atlantic, and United Airlines from Riverside to London Heathrow Airport 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
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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.
Virgin Atlantic
7.5
Good
671 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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.
United Airlines
7.4
Good
8,996 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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
3,004 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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
7,488 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

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 Heathrow. 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 London Heathrow Airport?

    A quick flight from Riverside to London Heathrow Airport can take about 10h 35m. Finnair provides one of the quickest options available for as low as $583. There are 5439 mi between Riverside and London Heathrow Airport. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Riverside to London Heathrow Airport one-way?

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $335. However, be on the lookout for offers from JetBlue and Finnair, as they are both options that can get you from Riverside to London Heathrow Airport for a low price.

  • What are the most reliable airlines from Riverside to London Heathrow Airport?

    Consider KLM (95%), Air France (95%) or Delta (95%) when booking your flight. These represent the most reliable airlines when flying from Riverside to London Heathrow Airport.

  • What are the cheapest flights from Riverside to London Heathrow Airport?

    On average you can expect to pay $3,109 for a flight from Riverside to London Heathrow Airport. The cheapest flight overall is $329 while the most popular route, (Los Angeles - London Heathrow) is currently priced at $409.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Riverside to Heathrow 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 London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Riverside to London Heathrow Airport (average of $436). Flying from Riverside to London Heathrow Airport in June is currently the most expensive (average of $699). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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Top 10 airlines flying from Riverside to Heathrow

Discover the top 10 airlines that operate flights from Riverside to Heathrow. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$272Average$1,046FlexibilityNo cancel feeOn-time60%
JetBlueCheapest$273Average$810FlexibilityNo cancel feeOn-time62%
SWISSCheapest$336Average$706FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$397Average$893FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$419Average$594FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$427Average$628FlexibilityNo cancel feeOn-timeN/A
Norse Atlantic UKCheapest$463Average$741FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$476Average$691FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$487Average$703FlexibilityNo cancel feeOn-time76%
KLMCheapest$527Average$893FlexibilityNo cancel feeOn-time75%

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