$402+ Cheap flights from Riverside, CA to Sofia (SOF)
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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Riverside to Sofia 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.Cheapflights Tip: The best prices from Riverside to Sofia are usually found in November or February, booked 71 days in advance, depart on a Monday or Tuesday and return on a Wednesday
Cheap flight deals from Riverside to Sofia
Keep the following information in mind while searching for Riverside to Sofia flight deals. Data was last updated May 1, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $695 (SWISS) |
One-way from | $402 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $982 |
Find flight deals from Riverside to Sofia
Cheapest flights from Riverside to SofiaExplore the most affordable flight options available from Riverside to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.
Explore the most affordable flight options available from Riverside to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.
This SWISS deal was found by Cheapflights users on 4/30. 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 SWISS 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 4/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com 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 oojo deal was found by Cheapflights users on 4/30. 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 oojo 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 4/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines 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 Sofia 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 May 1, 2025.
Use the filters below to find and compare flights from Riverside to Sofia that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Los AngelesSofia
LAX - SOF
LAXSOF
Los Angeles
Tue 7/29
7:35 pm-10:05 am
1 stop28h 30m
Sofia
Tue 8/12
1:15 pm-4:30 pm
1 stop37h 15m
Los AngelesSofia
LAX - SOF
LAXSOF
Los Angeles
Wed 10/8
7:55 pm-2:45 pm
1 stop32h 50m
Sofia
Wed 10/22
3:35 pm-11:45 am
1 stop30h 10m
Los AngelesSofia
LAX - SOF
LAXSOF
Los Angeles
Wed 7/23
6:40 pm-11:40 am
2 stops31h 00m
Sofia
Mon 8/18
6:55 pm-3:15 pm
2 stops30h 20m
Los AngelesSofia
LAX - SOF
LAXSOF
Los Angeles
Wed 5/21
9:25 pm-8:50 am
2 stops25h 25m
Sofia
Wed 6/4
10:15 am-7:05 pm
1 stop18h 50m
Los AngelesSofia
LAX - SOF
LAXSOF
Los Angeles
Mon 10/20
5:30 pm-11:00 pm
1 stop19h 30m
Sofia
Wed 10/29
6:00 am-9:32 pm
2 stops24h 32m
Los AngelesSofia
LAX - SOF
LAXSOF
Los Angeles
Thu 8/7
3:15 pm-5:10 pm
1 stop15h 55m
Sofia
Sun 8/31
6:00 pm-1:15 pm
1 stop29h 15m
Los AngelesSofia
LAX - SOF
LAXSOF
Los Angeles
Mon 10/20
5:30 pm-11:00 pm
1 stop19h 30m
Sofia
Wed 10/29
6:05 am-4:15 pm
1 stop19h 10m
Los AngelesSofia
LAX - SOF
LAXSOF
Los Angeles
Wed 10/22
5:05 pm-1:30 pm
1 stop34h 25m
Sofia
Mon 10/27
5:25 pm-2:30 pm
1 stop30h 05m
Los AngelesSofia
LAX - SOF
LAXSOF
Los Angeles
Wed 10/22
10:54 am-5:50 pm
2 stops20h 56m
Sofia
Mon 10/27
6:00 am-5:30 pm
2 stops20h 30m
Los AngelesSofia
LAX - SOF
LAXSOF
Los Angeles
Tue 10/21
4:50 pm-2:00 pm
1 stop35h 10m
Sofia
Mon 10/27
7:00 am-4:47 pm
2 stops18h 47m
Best time to book a flight from Riverside to Sofia
Have a flexible travel schedule? Discover the best time to fly to Sofia from Riverside with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Riverside to Sofia
How far ahead should I book a flight from Riverside to Sofia?
Use this chart to determine the optimal time to book a round-trip flight from Riverside to Sofia. Price data was last updated on April 25, 2025.
To ensure you get the cheapest price possible for a flight from Riverside to Sofia, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Riverside to Sofia?
Currently, November is the cheapest month in which you can book a flight from Riverside to Sofia (average of $632). Flying from Riverside to Sofia in June is currently the most expensive (average of $1,218). 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 SOF?
Find hourly flight availability from Riverside to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.
When flying from Riverside to Sofia, 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 Sofia?
Use this chart to determine the cheapest time to fly round-trip from Riverside to Sofia. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Riverside to Sofia flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Sofia by month
Plan your trip to Sofia by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Sofia ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sofia when rainfall is around 1.2 in.
Temperature in Sofia by month
Plan your trip to Sofia by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Sofia, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).
Reviews of airlines servicing Sofia
Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated May 1, 2025.
Get a feel of what it's like to fly with LOT, Austrian Airlines and SWISS from Riverside to Sofia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Crew
Boarding
Overall
Comfort
Food
Reviews
Tomasz,Jan 2025
JFK - WAW
Entertainment
Crew
Boarding
Overall
Comfort
Food
Reviews
Tomasz,Jan 2025
JFK - WAW
Entertainment
Crew
Boarding
Overall
Comfort
Food
Reviews
Tomasz,Jan 2025
JFK - WAW
Entertainment
Crew
Boarding
Overall
Comfort
Food
Reviews
Tomasz,Jan 2025
JFK - WAW
Entertainment
Crew
Boarding
Overall
Comfort
Food
Reviews
Tomasz,Jan 2025
JFK - WAW
Entertainment
Crew
Boarding
Overall
Comfort
Food
Reviews
Tomasz,Jan 2025
JFK - WAW
Related info for your journey
Find useful and relevant information for your journey from Riverside to Sofia. 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 Sofia
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Riverside to Sofia
Discover the top 8 airlines that operate flights from Riverside to Sofia. 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 May 1, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$530 | Average$1,294 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$579 | Average$980 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$588 | Average$820 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$593 | Average$1,056 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$597 | Average$710 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$621 | Average$932 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$637 | Average$842 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$663 | Average$929 | FlexibilityNo cancel fee | On-time78% |