Lisbon

$342+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LIS
Jun 17 — Jun 241
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1. Tell us where you want to go

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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 Wednesday or Thursday 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 June 12, 2025.

Round-trip from

$759
(Air Canada)

One-way from

$342
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,201
From Riverside to Lisbon Humberto Delgado
One-way flight from Riverside to Lisbon Humberto Delgado
Highest demand for flights based on searches. 2% potential increase in price ($28 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Average for round-trip flights in June 2025

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 June 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/12. 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.
Sun 7/209:55 pmLAX - LIS
1 stop29h 10mAir Canada
Tue 7/2912:55 pmLIS - LAX
2 stops37h 07mAir Canada
Deal found 6/12$759
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 7/2110:30 pmLAX - LIS
1 stop26h 50mUnited Airlines
Fri 8/812:20 pmLIS - LAX
2 stops31h 23mUnited Airlines
Deal found 6/11$761
This KAYAK deal was found by Cheapflights users on 6/12. 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.
Fri 8/15:50 pmLAX - LIS
1 stop21h 35mBritish Airways
Fri 8/157:20 amLIS - LAX
1 stop15h 35mBritish Airways
Deal found 6/12$764
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/12:55 pmLAX - LIS
2 stops22h 55mLufthansa
Tue 10/145:05 amLIS - LAX
2 stops19h 58mLufthansa
Deal found 6/11$768
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/67:35 pmLAX - LIS
1 stop19h 45mSWISS
Wed 7/163:45 pmLIS - LAX
2 stops38h 10mSWISS
Deal found 6/10$769
This Iberia deal was found by Cheapflights users on 6/11. 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.
Tue 9/27:50 pmLAX - LIS
1 stop16h 45mIberia
Sun 9/79:10 amLIS - LAX
1 stop16h 55mIberia
Deal found 6/11$776
This Delta deal was found by Cheapflights users on 6/11. 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 7/2911:30 amLAX - LIS
1 stop15h 15mDelta
Wed 8/1312:45 pmLIS - LAX
2 stops18h 49mDelta
Deal found 6/11$779
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Fri 8/1512:10 amLAX - LIS
1 stop25h 45mTurkish Airlines
Wed 8/275:55 amLIS - LAX
1 stop20h 05mTurkish Airlines
Deal found 6/12$780
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Sat 7/264:40 pmLAX - LIS
Nonstop11h 05mMultiple Airlines
Thu 8/2110:30 pmLIS - LAX
1 stop27h 35mMultiple Airlines
Deal found 6/10$782
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Fri 9/124:40 pmLAX - LIS
Nonstop11h 05mTAP AIR PORTUGAL
Fri 9/269:55 amLIS - LAX
Nonstop12h 40mTAP AIR PORTUGAL
Deal found 6/11$786
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 8/38:05 pmLAX - LIS
1 stop19h 00mAmerican Airlines
Tue 8/1911:05 amLIS - LAX
2 stops18h 26mAmerican Airlines
Deal found 6/10$796
This Brussels Airlines deal was found by Cheapflights users on 6/11. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:30 pmLAX - LIS
2 stops17h 30mBrussels Airlines
Thu 10/237:55 pmLIS - LAX
2 stops25h 05mBrussels Airlines
Deal found 6/11$800

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 June 12, 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

Sun 7/20

9:55 pm-11:05 am

1 stop29h 10m

Lisbon Humberto Delgado

Tue 7/29

12:55 pm-6:02 pm

2 stops37h 07m

$759

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Tue 8/5

11:50 am-10:30 pm

2 stops26h 40m

Lisbon Humberto Delgado

Mon 8/11

10:30 pm-9:00 pm

3 stops30h 30m

$760

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Mon 7/21

10:30 pm-9:20 am

1 stop26h 50m

Lisbon Humberto Delgado

Fri 8/8

12:20 pm-11:43 am

2 stops31h 23m

$761

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Tue 7/8

12:59 am-9:05 am

1 stop24h 06m

Lisbon Humberto Delgado

Wed 7/23

6:35 am-4:05 pm

1 stop17h 30m

$762

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Sun 7/6

7:35 pm-11:20 pm

1 stop19h 45m

Lisbon Humberto Delgado

Wed 7/16

3:45 pm-9:55 pm

2 stops38h 10m

$769

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Tue 7/29

8:15 pm-9:35 pm

1 stop17h 20m

Lisbon Humberto Delgado

Tue 8/5

10:15 pm-6:25 pm

1 stop28h 10m

$771

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Tue 8/19

5:30 pm-10:05 pm

2 stops20h 35m

Lisbon Humberto Delgado

Tue 8/26

5:05 am-5:42 pm

2 stops20h 37m

$773

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Tue 9/2

7:50 pm-8:35 pm

1 stop16h 45m

Lisbon Humberto Delgado

Sun 9/7

9:10 am-6:05 pm

1 stop16h 55m

$776

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Tue 7/29

11:30 am-10:45 am

1 stop15h 15m

Lisbon Humberto Delgado

Wed 8/13

12:45 pm-11:34 pm

2 stops18h 49m

$779

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Fri 8/15

12:10 am-9:55 am

1 stop25h 45m

Lisbon Humberto Delgado

Wed 8/27

5:55 am-6:00 pm

1 stop20h 05m

$780

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 22 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 June 9, 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 $1,136). 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 June 12, 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 Wednesday 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.

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Delta, SWISS and Brussels Airlines from Riverside to Lisbon by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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.
8.0
Very good
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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.
8.0
Very good

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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?

  • 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 Virgin Atlantic. Other airlines that offer cheap prices include Delta from $346 and TAP AIR PORTUGAL from $349 one-way.

  • What are the cheapest flights from Riverside to Lisbon?

    The cheapest flight price from Riverside to Lisbon is $267. On average you can expect to pay $1,981. The most popular route, (Los Angeles - Lisbon Humberto Delgado), can usually be booked for $469.

  • 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 $1,136). 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 Riverside?

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

Browse thousands of different options on Cheapflights for your next trip

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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.

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$403Average$665FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$509Average$674FlexibilityNo cancel feeOn-time88%
SWISSCheapest$524Average$865FlexibilityNo cancel feeOn-time79%
DeltaCheapest$540Average$1,021FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$540Average$874FlexibilityNo cancel feeOn-time76%
IberiaCheapest$541Average$884FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$560Average$709FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$568Average$984FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$598Average$945FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$607Average$870FlexibilityNo cancel feeOn-time72%

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