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$584+ Cheap flights from Fremont, CA to Bulgaria

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SOF
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
1 adult, Economy
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Cheap flight deals from Fremont to Bulgaria

Keep the following information in mind while searching for Fremont 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

$584
(oojo)

Popular in

June

Cheapest in

January

Average price

$699
Provider with most accurate pricing for San Francisco-Sofia flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Sofia flights.
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From Fremont to Bulgaria
Search Deals
Highest demand for flights based on searches. 32% potential increase in price ($428 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($56 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 Fremont to Bulgaria

Cheapest flights from Fremont to Bulgaria
Explore the most affordable flight options available from Fremont 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 2/22. 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 3/257:50 pmSFO - SOF
1 stop16h 00mTurkish Airlines
Tue 4/89:15 amSOF - SFO
1 stop35h 20mTurkish Airlines
Deal found 2/22$584
This Kiwi.com deal was found by Cheapflights users on 2/23. 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.
Wed 3/269:35 pmSFO - SOF
1 stop16h 10mMultiple Airlines
Wed 4/910:50 amSOF - SFO
1 stop15h 20mMultiple Airlines
Deal found 2/23$595
This oojo deal was found by Cheapflights users on 2/23. 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 3/1611:59 pmSFO - SOF
2 stops32h 11mBritish Airways
Sun 3/309:10 pmSOF - SFO
1 stop26h 40mBritish Airways
Deal found 2/23$598
This Kiwi.com deal was found by Cheapflights users on 2/23. 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.
Wed 3/269:35 pmSFO - SOF
1 stop16h 10mLufthansa
Wed 4/96:15 amSOF - SFO
2 stops28h 00mLufthansa
Deal found 2/23$603
This Air Canada deal was found by Cheapflights users on 2/23. 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 3/268:25 amSFO - SOF
2 stops20h 20mAir Canada
Wed 4/92:05 pmSOF - SFO
2 stops30h 32mAir Canada
Deal found 2/23$610
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/259:15 amSFO - SOF
2 stops19h 50mKLM
Tue 4/87:00 amSOF - SFO
2 stops24h 07mKLM
Deal found 2/22$617
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.
Thu 2/2712:50 pmSFO - SOF
2 stops23h 55mUnited Airlines
Sat 3/86:05 amSOF - SFO
1 stop22h 40mUnited Airlines
Deal found 2/22$687
This Austrian Airlines 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/47:15 amSFO - VAR
2 stops22h 00mAustrian Airlines
Mon 3/104:00 pmVAR - SFO
2 stops36h 45mAustrian Airlines
Deal found 2/21$718
This Turkish 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/86:45 pmSFO - VAR
1 stop16h 35mTurkish Airlines
Tue 4/159:30 amVAR - SFO
1 stop35h 05mTurkish Airlines
Deal found 2/22$742
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/89:05 pmSFO - VAR
2 stops56h 10mLufthansa
Tue 4/159:15 amVAR - SFO
1 stop37h 25mLufthansa
Deal found 2/22$932
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/103:15 pmSFO - SOF
1 stop15h 55mITA Airways
Mon 9/112:55 pmSOF - SFO
1 stop34h 20mITA Airways
Deal found 2/22$1,012
This Air France 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/266:15 amSFO - SOF
2 stops21h 45mAir France
Mon 5/127:00 amSOF - SFO
1 stop21h 15mAir France
Deal found 2/22$1,047

Find flights from Fremont to Bulgaria within your budget

Customize your flight search to find flights from Fremont 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

Fremont

Fly to

Bulgaria

Route

Depart

Return

Price

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 3/25

7:50 pm-8:50 pm

1 stop16h 00m

Sofia

Tue 4/8

9:15 am-10:35 am

1 stop35h 20m

$584

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 3/26

9:35 pm-10:45 pm

1 stop16h 10m

Sofia

Wed 4/9

10:50 am-4:10 pm

1 stop15h 20m

$595

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sun 3/16

11:59 pm-5:10 pm

2 stops32h 11m

Sofia

Sun 3/30

9:10 pm-1:50 pm

1 stop26h 40m

$598

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 3/26

9:35 pm-10:45 pm

1 stop16h 10m

Sofia

Wed 4/9

6:15 am-12:15 am

2 stops28h 00m

$603

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 3/26

8:25 am-1:45 pm

2 stops20h 20m

Sofia

Wed 4/9

2:05 pm-10:37 am

2 stops30h 32m

$610

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 3/25

9:15 am-2:05 pm

2 stops19h 50m

Sofia

Tue 4/8

7:00 am-9:07 pm

2 stops24h 07m

$617

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 3/4

7:15 am-3:15 pm

2 stops22h 00m

Varna

Mon 3/10

4:00 pm-7:45 pm

2 stops36h 45m

$718

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 4/8

6:45 pm-9:20 pm

1 stop16h 35m

Varna

Tue 4/15

9:30 am-10:35 am

1 stop35h 05m

$742

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Tue 4/22

1:45 pm-6:40 pm

1 stop18h 55m

Sofia

Fri 5/9

6:15 am-3:35 pm

2 stops19h 20m

$803

San FranciscoVarna

SFO - VAR

SFOVAR

San Francisco

Tue 4/8

9:05 pm-3:15 pm

2 stops56h 10m

Varna

Tue 4/15

9:15 am-12:40 pm

1 stop37h 25m

$932

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Fremont to Bulgaria

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

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

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

Currently, November is the cheapest month in which you can book a flight from Fremont to Bulgaria (average of $632). Flying from Fremont 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 FR8 to BG?

Find hourly flight availability from Fremont 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 Fremont 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.
Read reviews from past customers who have flown KLM, LOT and Austrian Airlines from Fremont to Bulgaria. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,332 reviews

Entertainment

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Boarding

7.8

Food

7.3

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

Entertainment

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Boarding

7.8

Food

7.3

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

Entertainment

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Boarding

7.8

Food

7.3

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

Entertainment

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Boarding

7.8

Food

7.3

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

Entertainment

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Boarding

7.8

Food

7.3

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.

Air France
7.4
Good
1,447 reviews
KLM
7.8
Good
1,332 reviews

Entertainment

7.2

Crew

8.4

Comfort

7.7

Overall

7.8

Boarding

7.8

Food

7.3

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 Fremont 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 most popular routes from Fremont to Bulgaria?

    The most popular route from Fremont to Bulgaria is San Francisco - Sofia. You may also consider San Francisco - Varna or San Francisco - Bourgas.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Fremont to Bulgaria (average of $632). Flying from Fremont 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.

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Top 6 airlines flying from Fremont to Bulgaria

Discover the top 6 airlines that operate flights from Fremont 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$499Average$974FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$578Average$870FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$601Average$1,232FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$609Average$1,220FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$683Average$1,235FlexibilityNo cancel feeOn-time76%
SWISSCheapest$712Average$1,018FlexibilityNo cancel feeOn-time79%
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