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$313+ Cheap flights from Riverside, CA to Bulgaria

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SOF
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
1 adult, Economy
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Cheap flight deals from Riverside to Bulgaria

Keep the following information in mind while searching for Riverside to Bulgaria flight deals. Data was last updated February 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$598
(oojo)

One-way from

$313
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$657
Provider with most accurate pricing for Los Angeles-Sofia flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Sofia flights.
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From Riverside to Bulgaria
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One-way flight from Riverside to Bulgaria
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($294 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Riverside to Bulgaria

Cheapest flights from Riverside to Bulgaria
Explore the most affordable flight options available from Riverside to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2025.

This oojo deal was found by Cheapflights users on 2/21. 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.
Tue 4/151:40 pmLAX - SOF
1 stop20h 45mTurkish Airlines
Tue 4/293:35 pmSOF - LAX
1 stop36h 25mTurkish Airlines
Deal found 2/21$598
This Billigflug deal was found by Cheapflights users on 2/21. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/96:30 pmLAX - SOF
1 stop14h 40mMultiple Airlines
Tue 3/252:15 pmSOF - LAX
2 stops29h 17mMultiple Airlines
Deal found 2/21$603
This oojo deal was found by Cheapflights users on 2/22. 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.
Tue 3/1811:15 amLAX - SOF
2 stops17h 55mBritish Airways
Tue 3/256:05 pmSOF - LAX
2 stops32h 15mBritish Airways
Deal found 2/22$607
This Billigflug deal was found by Cheapflights users on 2/21. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/96:30 pmLAX - SOF
1 stop14h 40mLufthansa
Tue 3/256:05 amSOF - LAX
1 stop19h 10mLufthansa
Deal found 2/21$610
This American Airlines deal was found by Cheapflights users on 2/22. 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.
Mon 3/104:30 pmLAX - SOF
1 stop15h 40mAmerican Airlines
Mon 3/245:25 pmSOF - LAX
2 stops33h 40mAmerican Airlines
Deal found 2/22$613
This KLM deal was found by Cheapflights users on 2/21. 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.
Wed 3/122:45 pmLAX - SOF
1 stop14h 20mKLM
Wed 3/197:00 amSOF - LAX
2 stops21h 18mKLM
Deal found 2/21$618
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Tue 3/258:30 amLAX - SOF
2 stops19h 55mUnited Airlines
Tue 4/88:00 amSOF - LAX
2 stops24h 46mUnited Airlines
Deal found 2/22$635
This Flighttix deal was found by Cheapflights users on 2/21. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/128:10 pmLAX - SOF
2 stops31h 50mSWISS
Wed 3/191:45 pmSOF - LAX
2 stops36h 45mSWISS
Deal found 2/21$650
This oojo deal was found by Cheapflights users on 2/22. 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.
Sun 3/167:55 pmLAX - VAR
1 stop15h 45mTurkish Airlines
Fri 4/49:30 amVAR - LAX
1 stop36h 15mTurkish Airlines
Deal found 2/22$684
This Air Canada deal was found by Cheapflights users on 2/22. 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.
Wed 10/112:05 pmLAX - SOF
2 stops19h 45mAir Canada
Fri 10/176:15 amSOF - LAX
2 stops25h 13mAir Canada
Deal found 2/22$696
This United deal was found by Cheapflights users on 2/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1611:59 pmLAX - VAR
2 stops30h 16mMultiple Airlines
Fri 4/44:00 pmVAR - LAX
2 stops57h 15mMultiple Airlines
Deal found 2/22$761
This Austrian Airlines deal was found by Cheapflights users on 2/22. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/63:05 pmLAX - SOF
1 stop14h 15mAustrian Airlines
Tue 5/2712:25 pmSOF - LAX
1 stop34h 40mAustrian Airlines
Deal found 2/22$761

Find flights from Riverside to Bulgaria within your budget

Customize your flight search to find flights from Riverside to Bulgaria 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 February 23, 2025.

Fly from

Riverside

Fly to

Bulgaria

Route

Depart

Return

Price

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Tue 4/15

1:40 pm-8:25 pm

1 stop20h 45m

Sofia

Tue 4/29

3:35 pm-6:00 pm

1 stop36h 25m

$598

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Sun 3/9

6:30 pm-6:10 pm

1 stop14h 40m

Sofia

Tue 3/25

2:15 pm-10:32 am

2 stops29h 17m

$603

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Tue 3/18

11:15 am-2:10 pm

2 stops17h 55m

Sofia

Tue 3/25

6:05 pm-5:20 pm

2 stops32h 15m

$607

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Sun 3/9

6:30 pm-6:10 pm

1 stop14h 40m

Sofia

Tue 3/25

6:05 am-4:15 pm

1 stop19h 10m

$610

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Mon 3/10

4:30 pm-5:10 pm

1 stop15h 40m

Sofia

Mon 3/24

5:25 pm-6:05 pm

2 stops33h 40m

$613

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Wed 3/12

2:45 pm-2:05 pm

1 stop14h 20m

Sofia

Wed 3/19

7:00 am-7:18 pm

2 stops21h 18m

$618

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Tue 3/25

8:30 am-1:25 pm

2 stops19h 55m

Sofia

Tue 4/8

8:00 am-10:46 pm

2 stops24h 46m

$635

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Wed 3/12

8:10 pm-1:00 pm

2 stops31h 50m

Sofia

Wed 3/19

1:45 pm-5:30 pm

2 stops36h 45m

$650

Los AngelesVarna

LAX - VAR

LAXVAR

Los Angeles

Sun 3/16

7:55 pm-8:40 pm

1 stop15h 45m

Varna

Fri 4/4

9:30 am-11:45 am

1 stop36h 15m

$684

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Wed 5/7

8:05 am-5:50 pm

2 stops23h 45m

Sofia

Sun 5/25

6:20 am-10:59 pm

2 stops26h 39m

$746

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 26 results
1
2
3

Best time to book a flight from Riverside to Bulgaria

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

Travel insights for flights from Riverside to Bulgaria

Get recent, data-driven insights about flights from Riverside to Bulgaria including ideal travel times, pricing trends, and more.

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

Currently, November is the cheapest month in which you can book a flight from Riverside to Bulgaria (average of $632). Flying from Riverside to Bulgaria in June is currently the most expensive (average of $1,243). 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 BG?

Find hourly flight availability from Riverside to Bulgaria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 23, 2025.

When flying from Riverside to Bulgaria, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Bulgaria by month

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

In terms of precipitation, rainfall in Bulgaria 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 Bulgaria when rainfall is around 1.2 in.

Temperature in Bulgaria by month

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

If weather is an important factor for your trip to Bulgaria, 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 Bulgaria

Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated February 23, 2025.
Peruse reviews from past customers who have flown with KLM, LOT and Austrian Airlines from Riverside to Bulgaria to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,332 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,332 reviews
KLM
7.8
Good
1,332 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

LOT
7.6
Good
1,081 reviews
KLM
7.8
Good
1,332 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Austrian Airlines
7.5
Good
771 reviews
KLM
7.8
Good
1,332 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

SWISS
7.5
Good
1,568 reviews
KLM
7.8
Good
1,332 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

United Airlines
7.4
Good
8,754 reviews
KLM
7.8
Good
1,332 reviews

Overall

7.8

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Riverside to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    To fly one-way, consider booking your trip with Austrian Airlines, which is currently one of the cheapest options available, starting at $517. United Airlines flights start at $522 while deals on Air Canada start at $569 one-way.

  • What are the most popular routes from Riverside to Bulgaria?

    When deciding which route to take from Riverside to Bulgaria consider Los Angeles - Sofia, Los Angeles - Varna or Los Angeles - Bourgas as they are the most popular.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Riverside to Bulgaria (average of $632). Flying from Riverside to Bulgaria in June is currently the most expensive (average of $1,243). 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

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Top 8 airlines flying from Riverside to Bulgaria

Discover the top 8 airlines that operate flights from Riverside to Bulgaria. 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 February 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$530Average$1,115FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$603Average$917FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$603Average$895FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$611Average$967FlexibilityNo cancel feeOn-time78%
KLMCheapest$613Average$871FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$631Average$845FlexibilityNo cancel feeOn-time70%
LOTCheapest$635Average$1,115FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$656Average$892FlexibilityNo cancel feeOn-time69%
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