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$304+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LIS
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to Lisbon Humberto Delgado are usually found in February or October, booked 87 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

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 octubre 30, 2025.

This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/286:30 amLAX - LIS
2 stops18h 50mMultiple Airlines
lun. 12/811:50 amLIS - LAX
1 stop36h 45mMultiple Airlines
Deal found 10/28$512
This KAYAK deal was found by Cheapflights users on 10/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/128:00 amLAX - LIS
2 stops19h 35mLufthansa
lun. 11/242:10 pmLIS - LAX
1 stop33h 05mLufthansa
Deal found 10/29$513
This KAYAK deal was found by Cheapflights users on 10/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/137:10 pmLAX - LIS
1 stop32h 35mSWISS
mar. 11/253:25 pmLIS - LAX
1 stop33h 10mSWISS
Deal found 10/29$514
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1112:30 pmLAX - LIS
1 stop12h 50mUnited Airlines
jue. 12/2510:55 amLIS - LAX
1 stop19h 05mUnited Airlines
Deal found 10/28$515
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/299:30 pmLAX - LIS
1 stop26h 30mDelta
mar. 1/1310:00 amLIS - LAX
2 stops20h 01mDelta
Deal found 10/29$516
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/1511:30 pmLAX - LIS
1 stop26h 45mUnited Airlines
lun. 11/245:00 amLIS - LAX
1 stop16h 05mUnited Airlines
Deal found 10/30$517
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.
dom. 11/93:00 pmLAX - LIS
1 stop23h 50mLufthansa
lun. 11/175:00 amLIS - LAX
1 stop16h 05mLufthansa
Deal found 10/30$518
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/115:30 pmLAX - LIS
1 stop22h 00mLufthansa
dom. 3/15:00 amLIS - LAX
2 stops27h 30mLufthansa
Deal found 10/30$519
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/115:00 amLAX - LIS
2 stops20h 20mAir Canada
mar. 12/2311:20 amLIS - LAX
1 stop18h 40mAir Canada
Deal found 10/28$520
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/123:00 pmLAX - LIS
1 stop15h 50mUnited Airlines
dom. 11/235:00 amLIS - LAX
1 stop16h 05mUnited Airlines
Deal found 10/28$521
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/116:30 amLAX - LIS
2 stops18h 50mAir Canada
mié. 12/1711:00 amLIS - LAX
2 stops19h 00mAir Canada
Deal found 10/30$522
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/277:45 amLAX - LIS
2 stops17h 35mAir Canada
jue. 12/1110:55 amLIS - LAX
2 stops37h 34mAir Canada
Deal found 10/28$523

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 octubre 30, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$512
(CheapOair)

One-way from

$304
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$695
Provider with most accurate pricing for Los Angeles-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Lisbon Humberto Delgado flights.
Search Deals
From Riverside to Lisbon Humberto Delgado
Search Deals
One-way flight from Riverside to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 octubre 30, 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

mar. 11/11

5:30 pm-11:30 pm

1 stop22h 00m

Lisbon Humberto Delgado

jue. 11/27

10:15 am-7:35 am

2 stops29h 20m

$512

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

jue. 1/15

12:30 am-9:20 am

2 stops24h 50m

Lisbon Humberto Delgado

mar. 1/20

6:10 am-3:15 pm

1 stop17h 05m

$516

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

lun. 12/29

11:30 pm-10:15 am

1 stop26h 45m

Lisbon Humberto Delgado

mié. 1/14

10:15 am-8:44 pm

2 stops18h 29m

$516

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

mié. 1/28

3:25 pm-3:10 pm

1 stop15h 45m

Lisbon Humberto Delgado

dom. 2/8

5:00 am-6:40 pm

2 stops21h 40m

$521

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

jue. 1/1

7:55 am-8:00 am

1 stop16h 05m

Lisbon Humberto Delgado

jue. 1/15

5:00 am-6:40 pm

2 stops21h 40m

$521

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

jue. 1/1

11:30 pm-10:15 am

1 stop26h 45m

Lisbon Humberto Delgado

vie. 2/13

6:10 am-3:15 pm

1 stop17h 05m

$521

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

vie. 11/14

8:50 am-8:10 am

2 stops15h 20m

Lisbon Humberto Delgado

mié. 11/19

6:10 am-5:40 pm

2 stops19h 30m

$523

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

vie. 12/12

6:00 am-10:15 am

2 stops20h 15m

Lisbon Humberto Delgado

jue. 12/18

10:55 am-10:00 pm

1 stop19h 05m

$524

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

vie. 12/12

9:25 am-8:50 am

1 stop15h 25m

Lisbon Humberto Delgado

vie. 12/19

11:05 am-10:02 pm

1 stop18h 57m

$531

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

vie. 12/12

1:30 pm-10:15 am

1 stop12h 45m

Lisbon Humberto Delgado

mié. 12/17

11:55 am-10:55 pm

2 stops19h 00m

$535

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 20 results
1
2

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 October 24, 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, February is the cheapest month in which you can book a flight from Riverside to Lisbon (average of $476). Flying from Riverside to Lisbon in May is currently the most expensive (average of $690). 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 octubre 30, 2025.

It’s typically best to fly out from Riverside to Lisbon in the evening. Doing so could potentially save you 46% on the flight price compared to flying at noon, which is usually more expensive.

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 evenings 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 octubre 30, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and Air Canada 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
7.9
Good
7,998 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

7.9

Crew

8.5

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

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

7.9

Crew

8.5

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
8,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

7.9

Crew

8.5

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.
Air Canada
7.1
Good
10,381 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

7.9

Crew

8.5

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.
TAP AIR PORTUGAL
7.1
Good
2,040 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

7.9

Crew

8.5

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
7,487 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

7.9

Crew

8.5

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. 18 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, 51 users have taken a look at flights from Riverside to Lisbon Humberto Delgado.

  • How long is the flight from Riverside to Lisbon?

    United Airlines and Delta can get you from Riverside to Lisbon in just under 15h 45m. Your travel time can differ by up to 6h 15m. The distance between Riverside and Lisbon is about 5674 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest flights from Riverside to Lisbon?

    The cheapest flight price from Riverside to Lisbon is $176. On average you can expect to pay $872. The most popular route, (Los Angeles - Lisbon Humberto Delgado), can usually be booked for $438.

  • 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, February is the cheapest month in which you can book a flight from Riverside to Lisbon (average of $476). Flying from Riverside to Lisbon in May is currently the most expensive (average of $690). 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
Fátima
Oeiras
Nazaré
Ericeira
Costa da Caparica
Torres Vedras
Beja
Sesimbra
Colares

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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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$385Average$618FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$472Average$709FlexibilityNo cancel feeOn-time79%
IberiaCheapest$480Average$700FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$498Average$853FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$505Average$957FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$514Average$694FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$515Average$954FlexibilityNo cancel feeOn-time69%
VuelingCheapest$522Average$667FlexibilityNo cancel feeOn-time88%
DeltaCheapest$540Average$886FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$546Average$880FlexibilityNo cancel feeOn-time72%

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