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$343+ Cheap flights from Riverside, CA to Lisbon (LIS)

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LIS
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to Lisbon Humberto Delgado are usually found in February or March, booked 87 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Riverside to Lisbon

Keep the following information in mind while searching for Riverside to Lisbon flight deals. Data was last updated julio 31, 2025.

Round-trip from

$608
(Ovago)

One-way from

$343
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$977
From Riverside to Lisbon Humberto Delgado
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One-way flight from Riverside to Lisbon Humberto Delgado
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Highest demand for flights based on searches. 4% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($27 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 Lisbon

Cheapest flights from Riverside to Lisbon
Explore the most affordable flight options available from Riverside to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/171:11 amLAX - LIS
1 stop23h 54mBritish Airways
lun. 8/258:25 amLIS - LAX
1 stop15h 40mBritish Airways
Deal found 7/31$608
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.
sáb. 10/119:00 amLAX - LIS
1 stop15h 00mDelta
mar. 10/2811:15 amLIS - LAX
1 stop15h 52mDelta
Deal found 7/31$612
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.
jue. 12/46:30 amLAX - LIS
2 stops18h 50mAir Canada
vie. 12/1911:20 amLIS - LAX
2 stops32h 24mAir Canada
Deal found 7/29$615
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/1110:34 amLAX - LIS
2 stops14h 31mAmerican Airlines
lun. 8/256:35 amLIS - LAX
1 stop17h 30mAmerican Airlines
Deal found 7/29$619
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/77:30 pmLAX - LIS
1 stop29h 25mScandinavian Airlines
sáb. 11/1512:45 pmLIS - LAX
2 stops36h 15mScandinavian Airlines
Deal found 7/31$620
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/179:30 pmLAX - LIS
1 stop17h 40mMultiple Airlines
dom. 10/267:45 amLIS - LAX
1 stop16h 50mMultiple Airlines
Deal found 7/29$622
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.
jue. 9/185:50 pmLAX - LIS
1 stop21h 35mIberia
mié. 10/86:35 amLIS - LAX
1 stop17h 30mIberia
Deal found 7/31$623
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/255:20 pmLAX - LIS
1 stop16h 30mAir France
jue. 10/212:10 pmLIS - LAX
1 stop17h 45mAir France
Deal found 7/31$628
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/157:55 pmLAX - LIS
1 stop19h 40mTurkish Airlines
mar. 9/234:45 pmLIS - LAX
1 stop27h 00mTurkish Airlines
Deal found 7/29$639

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside to Lisbon 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 julio 31, 2025.
Use the filters below to find and compare flights from Riverside to Lisbon that are best for you.

Fly from

Riverside

Fly to

Lisbon

Route

Depart

Return

Price

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

dom. 8/17

1:11 am-9:05 am

1 stop23h 54m

Lisbon Humberto Delgado

lun. 8/25

8:25 am-4:05 pm

1 stop15h 40m

$608

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

sáb. 10/11

9:00 am-8:00 am

1 stop15h 00m

Lisbon Humberto Delgado

mar. 10/28

11:15 am-8:07 pm

1 stop15h 52m

$612

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

jue. 10/23

5:50 pm-4:05 pm

1 stop14h 15m

Lisbon Humberto Delgado

dom. 11/2

7:45 am-7:05 pm

2 stops18h 20m

$615

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

jue. 8/14

10:34 am-9:05 am

2 stops14h 31m

Lisbon Humberto Delgado

vie. 8/29

8:25 am-4:05 pm

1 stop15h 40m

$618

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

vie. 10/17

9:30 pm-11:10 pm

1 stop17h 40m

Lisbon Humberto Delgado

dom. 10/26

7:45 am-5:35 pm

1 stop16h 50m

$622

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

lun. 9/15

7:55 pm-11:35 pm

1 stop19h 40m

Lisbon Humberto Delgado

mar. 9/23

4:45 pm-11:45 am

1 stop27h 00m

$639

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

dom. 8/31

7:40 pm-9:00 am

2 stops53h 20m

Lisbon Humberto Delgado

mié. 9/10

8:00 am-4:20 pm

2 stops40h 20m

$640

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

mié. 10/1

11:10 pm-9:05 am

3 stops49h 55m

$343

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

jue. 8/14

2:10 pm-5:50 pm

2 stops19h 40m

$344

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

mar. 8/5

7:50 pm-9:30 pm

1 stop17h 40m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 15 results
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Best time to book a flight from Riverside to Lisbon

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

How far ahead should I book a flight from Riverside to Lisbon?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Lisbon. Price data was last updated on July 25, 2025.

Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Riverside to Lisbon. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Riverside to Lisbon (average of $612). Flying from Riverside to Lisbon in June is currently the most expensive (average of $1,129). 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 LIS?

Find hourly flight availability from Riverside to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

When flying from Riverside to Lisbon, 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 Lisbon?

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

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

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated julio 31, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and Virgin Atlantic from Riverside to Lisbon. 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
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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.
Scandinavian Airlines
7.4
Good
1,457 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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.
Turkish Airlines
7.3
Good
3,933 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

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 Lisbon. 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 Lisbon from Riverside?

    Lisbon Humberto Delgado (LIS), located 4.2 mi from the city center, is the airport you fly into when you book flights from Riverside to Lisbon. 19 airlines have flights to Humberto Delgado from Riverside on a regular basis. Booking flights from Riverside to Lisbon Humberto Delgado should not be difficult; the airport handles an average of 0 inbound flights from Riverside per day.

  • How popular is this Riverside to Lisbon flight route?

    Within the past month, 41 users have taken a look at flights from Riverside to Lisbon Humberto Delgado.

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

    One-way options have recently been found by users for as low as $344 on Delta. Other airlines that offer cheap prices include Iberia from $348 and Virgin Atlantic from $350 one-way.

  • What are the cheapest flights from Riverside to Lisbon?

    The cheapest flight price from Riverside to Lisbon is $281. On average you can expect to pay $1,616. The most popular route, (Los Angeles - Lisbon Humberto Delgado), can usually be booked for $482.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Riverside to Lisbon (average of $612). Flying from Riverside to Lisbon in June is currently the most expensive (average of $1,129). 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 Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Oeiras
Beja
Nazaré
Ericeira
Costa da Caparica
Torres Vedras
Sesimbra
Colares

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Alternative routes for Riverside to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Riverside to Lisbon

Discover the top 10 airlines that operate flights from Riverside to Lisbon. 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$425Average$609FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$516Average$842FlexibilityNo cancel feeOn-time79%
VuelingCheapest$518Average$663FlexibilityNo cancel feeOn-time88%
IberiaCheapest$535Average$782FlexibilityNo cancel feeOn-time77%
DeltaCheapest$540Average$873FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$540Average$873FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$555Average$709FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$564Average$857FlexibilityNo cancel feeOn-time72%
TAP AIR PORTUGALCheapest$565Average$995FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$568Average$1,004FlexibilityNo cancel feeOn-time69%

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