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$168+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to London Heathrow are usually found in October or September, booked 44 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

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 July 31, 2025.

Round-trip from

$506
(Iberia)

One-way from

$168
(Booking.com)

Popular in

December

Cheapest in

October

Average price

$884
From Riverside to London Heathrow
Search Deals
One-way flight from Riverside to London Heathrow
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Iberia deal was found by Cheapflights users on 7/31. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/248:00 amLAX - LHR
1 stop16h 05mIberia
Tue 9/28:50 pmLHR - LAX
2 stops34h 09mIberia
Deal found 7/31$506
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/234:13 pmLAX - LHR
1 stop33h 27mUnited Airlines
Tue 9/29:30 amLHR - LAX
1 stop33h 35mUnited Airlines
Deal found 7/31$507
This United deal was found by Cheapflights users on 7/31. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2011:00 amLAX - LHR
1 stop17h 20mMultiple Airlines
Wed 8/276:50 amLHR - LAX
2 stops20h 50mMultiple Airlines
Deal found 7/31$508
This British Airways deal was found by Cheapflights users on 7/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:40 pmLAX - LHR
Nonstop10h 25mBritish Airways
Tue 10/2111:40 amLHR - LAX
Nonstop11h 15mBritish Airways
Deal found 7/30$511
This Delta deal was found by Cheapflights users on 7/31. 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 8/209:48 amLAX - LHR
1 stop16h 02mDelta
Wed 8/279:00 amLHR - LAX
1 stop17h 10mDelta
Deal found 7/31$512
This Air Canada deal was found by Cheapflights users on 7/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/810:54 amLAX - LHR
1 stop18h 26mAir Canada
Wed 10/229:30 amLHR - LAX
2 stops19h 58mAir Canada
Deal found 7/29$517
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/29. 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.
Sat 12/134:45 pmLAX - LHR
1 stop18h 10mTAP AIR PORTUGAL
Mon 12/296:30 pmLHR - LAX
1 stop28h 30mTAP AIR PORTUGAL
Deal found 7/29$518
This SWISS deal was found by Cheapflights users on 7/31. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/511:45 amLAX - LHR
2 stops22h 05mSWISS
Mon 11/106:40 pmLHR - LAX
1 stop29h 55mSWISS
Deal found 7/31$521
This Booking.com deal was found by Cheapflights users on 7/30. 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 9/228:15 pmLAX - LHR
1 stop14h 40mAer Lingus
Sat 9/2712:00 pmLHR - LAX
1 stop14h 25mAer Lingus
Deal found 7/30$523
This Finnair deal was found by Cheapflights users on 7/29. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/202:53 pmLAX - LHR
1 stop13h 52mFinnair
Wed 8/2710:30 amLHR - LAX
1 stop15h 32mFinnair
Deal found 7/29$530
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/75:30 pmLAX - LHR
1 stop15h 35mLufthansa
Mon 9/228:25 pmLHR - LAX
2 stops24h 35mLufthansa
Deal found 7/29$532
This Austrian Airlines deal was found by Cheapflights users on 7/28. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/103:05 pmLAX - LHR
1 stop22h 35mAustrian Airlines
Tue 9/169:05 amLHR - LAX
2 stops41h 53mAustrian Airlines
Deal found 7/28$537

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 July 31, 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 8/24

8:00 am-8:05 am

1 stop16h 05m

London Heathrow

Tue 9/2

8:50 pm-10:59 pm

2 stops34h 09m

$506

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sat 8/23

4:13 pm-9:40 am

1 stop33h 27m

London Heathrow

Tue 9/2

9:30 am-11:05 am

1 stop33h 35m

$507

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 8/20

11:00 am-12:20 pm

1 stop17h 20m

London Heathrow

Wed 8/27

6:50 am-7:40 pm

2 stops20h 50m

$508

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 8/12

1:30 pm-8:00 am

Nonstop10h 30m

London Heathrow

Tue 8/26

11:40 am-2:55 pm

Nonstop11h 15m

$510

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 8/20

9:48 am-9:50 am

1 stop16h 02m

London Heathrow

Wed 8/27

9:00 am-6:10 pm

1 stop17h 10m

$512

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 10/8

10:54 am-1:20 pm

1 stop18h 26m

London Heathrow

Wed 10/22

9:30 am-9:28 pm

2 stops19h 58m

$517

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Fri 8/15

8:15 pm-8:20 pm

1 stop16h 05m

London Heathrow

Fri 9/5

8:50 am-6:25 pm

1 stop17h 35m

$518

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Tue 8/12

4:45 pm-11:10 am

Nonstop10h 25m

London Heathrow

Mon 8/18

6:40 pm-4:30 pm

1 stop29h 50m

$522

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Wed 8/20

2:53 pm-12:45 pm

1 stop13h 52m

London Heathrow

Wed 8/27

10:30 am-6:02 pm

1 stop15h 32m

$530

Los AngelesLondon

LAX - LHR

LAXLHR

Los Angeles

Sun 9/7

5:30 pm-5:05 pm

1 stop15h 35m

London Heathrow

Mon 9/22

8:25 pm-1:00 pm

2 stops24h 35m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 14 results
1
2

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 July 25, 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 44 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, November is the cheapest month in which you can book a flight from Riverside to London Heathrow Airport (average of $661). Flying from Riverside to London Heathrow Airport 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 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 July 31, 2025.

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

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 July 27, 2025.

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

Weekly flight availability from Riverside to London Heathrow Airport

Explore weekly flight availability from Riverside to Heathrow. 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 July 31, 2025.

The most flights from R1V to LHR are scheduled on a Monday (59 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

How much does it cost to fly round-trip from Riverside to London Heathrow Airport?

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 July 31, 2025.
Peruse reviews from past customers who have flown with Delta, Austrian Airlines, and Finnair 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
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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.
Austrian Airlines
7.6
Good
823 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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.
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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.
WestJet
7.2
Good
2,978 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

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

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

    Consider KLM (89%), Air France (89%) or Delta (89%) 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 $3,320 for a flight from Riverside to London Heathrow Airport. The cheapest flight overall is $377 while the most popular route, (Los Angeles - London Heathrow) is currently priced at $425.

  • 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, November is the cheapest month in which you can book a flight from Riverside to London Heathrow Airport (average of $661). Flying from Riverside to London Heathrow Airport 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Dartford
Broadway
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Swindon

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$272Average$1,046FlexibilityNo cancel feeOn-time60%
JetBlueCheapest$273Average$791FlexibilityNo cancel feeOn-time62%
SWISSCheapest$336Average$706FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$375Average$673FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$418Average$592FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$427Average$732FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$476Average$703FlexibilityNo cancel feeOn-timeN/A
Norse Atlantic UKCheapest$477Average$743FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$540Average$720FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$553Average$830FlexibilityNo cancel feeOn-time70%

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