$298+ Cheap flights from Riverside, CA to Portugal
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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Riverside to Portugal with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Riverside to Portugal
Keep the following information in mind while searching for Riverside to Portugal flight deals. Data was last updated April 29, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $607 (Kiwi.com) |
One-way from | $341 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $871 |
Find flight deals from Riverside to Portugal
Cheapest flights from Riverside to PortugalExplore the most affordable flight options available from Riverside to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.
Explore the most affordable flight options available from Riverside to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Ticket deal was found by Cheapflights users on 4/29. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Iberia deal was found by Cheapflights users on 4/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Scandinavian Airlines deal was found by Cheapflights users on 4/28. 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.
This Lufthansa deal was found by Cheapflights users on 4/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 4/28. 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.
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub deal was found by Cheapflights users on 4/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 4/29. 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.
Cheapflights Fare Finder
Customize your flight search to find flights from Riverside to Portugal 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 April 29, 2025.
Use the filters below to find and compare flights from Riverside to Portugal that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Los AngelesFaro
LAX - FAO
LAXFAO
Los Angeles
Sun 5/4
9:25 pm-4:05 pm
1 stop34h 40m
Faro
Sat 5/17
3:25 pm-5:30 pm
2 stops34h 05m
Los AngelesFunchal
LAX - FNC
LAXFNC
Los Angeles
Fri 10/10
4:40 pm-6:35 pm
1 stop17h 55m
Funchal Madeira
Sun 10/19
4:05 am-2:25 pm
1 stop18h 20m
Los AngelesFaro
LAX - FAO
LAXFAO
Los Angeles
Sun 5/4
5:30 pm-8:00 am
1 stop30h 30m
Faro
Sat 5/17
6:35 pm-3:30 pm
1 stop28h 55m
Los AngelesLisbon
LAX - LIS
LAXLIS
Los Angeles
Sun 5/4
7:45 pm-10:30 pm
1 stop18h 45m
Lisbon Humberto Delgado
Sat 5/17
5:55 am-5:30 pm
1 stop19h 35m
Los AngelesPorto
LAX - OPO
LAXOPO
Los Angeles
Mon 5/12
7:45 pm-8:00 am
2 stops28h 15m
Porto
Tue 5/27
10:00 pm-5:30 pm
2 stops27h 30m
Los AngelesPorto
LAX - OPO
LAXOPO
Los Angeles
Mon 10/6
7:30 pm-11:00 am
1 stop31h 30m
Porto
Tue 10/21
6:15 am-4:20 pm
2 stops42h 05m
Los AngelesPorto
LAX - OPO
LAXOPO
Los Angeles
Tue 10/14
10:30 pm-11:25 am
2 stops28h 55m
Porto
Fri 10/31
6:00 am-9:27 pm
2 stops22h 27m
Los AngelesPonta Delgada
LAX - PDL
LAXPDL
Los Angeles
Sat 5/10
8:50 pm-6:45 am
1 stop26h 55m
Ponta Delgada Nordela
Fri 5/23
8:25 pm-7:05 pm
2 stops29h 40m
Los AngelesLisbon
LAX - LIS
LAXLIS
Los Angeles
Mon 5/12
10:20 pm-9:20 am
1 stop27h 00m
Lisbon Humberto Delgado
Tue 5/20
11:25 am-1:02 pm
2 stops33h 37m
Los AngelesLisbon
LAX - LIS
LAXLIS
Los Angeles
Mon 5/12
10:20 pm-9:20 am
1 stop27h 00m
Lisbon Humberto Delgado
Fri 5/23
10:25 am-10:33 pm
2 stops20h 08m
Best time to book a flight from Riverside to Portugal
Have a flexible travel schedule? Discover the best time to fly to Portugal from Riverside with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Riverside to Portugal
What is the cheapest month to book a flight from Riverside to Portugal?
Currently, January is the cheapest month in which you can book a flight from Riverside to Portugal (average of $612). Flying from Riverside to Portugal in June is currently the most expensive (average of $1,178). 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 PT?
Find hourly flight availability from Riverside to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.
When flying from Riverside to Portugal, 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 Portugal?
Use this chart to determine the cheapest time to fly round-trip from Riverside to Portugal. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Riverside to Portugal flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Portugal by month
Plan your trip to Portugal by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Portugal 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 Portugal when rainfall is around 0.2 in.
Temperature in Portugal by month
Plan your trip to Portugal by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Portugal, 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 Portugal
Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated April 29, 2025.
Get a feel of what it's like to fly with Delta, KLM and Air Transat from Riverside to Portugal by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Food
Crew
Overall
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Food
Crew
Overall
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Food
Crew
Overall
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Food
Crew
Overall
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Food
Crew
Overall
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Comfort
Food
Crew
Overall
Entertainment
Boarding
Reviews
Aaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Riverside to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Riverside to Portugal
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Riverside to Portugal
Discover the top 10 airlines that operate flights from Riverside to Portugal. 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 April 29, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$428 | Average$605 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$502 | Average$709 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$537 | Average$1,026 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$540 | Average$1,047 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$540 | Average$926 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$566 | Average$719 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$568 | Average$1,166 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$596 | Average$958 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$598 | Average$1,093 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$607 | Average$906 | FlexibilityNo cancel fee | On-time72% |