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$307+ Cheap flights from Fremont, CA to Bucharest (BUH)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BUH
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to Bucharest are usually found in January or September, booked 55 days in advance, depart on a Monday or Friday and return on a Tuesday

Find flight deals from Fremont to Bucharest

Cheapest flights from Fremont to Bucharest
Explore the most affordable flight options available from Fremont to Bucharest. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This CrystalTravel 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/89:40 pmSFO - OTP
1 stop17h 25mLufthansa
Fri 1/165:55 amOTP - SFO
1 stop16h 45mLufthansa
Deal found 10/28$507
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:25 pmSFO - OTP
1 stop19h 05mSWISS
Fri 1/166:30 amOTP - SFO
1 stop20h 00mSWISS
Deal found 10/28$519
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/108:40 pmSFO - OTP
1 stop16h 50mBritish Airways
Sun 1/187:35 amOTP - SFO
1 stop17h 25mBritish Airways
Deal found 10/28$523
This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:25 pmSFO - OTP
1 stop34h 25mMultiple Airlines
Wed 12/106:30 amOTP - SFO
2 stops24h 52mMultiple Airlines
Deal found 10/29$524
This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:40 pmSFO - OTP
1 stop17h 25mLufthansa
Wed 12/106:05 amOTP - SFO
1 stop16h 35mLufthansa
Deal found 10/29$526
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/299:40 pmSFO - OTP
1 stop17h 25mLufthansa
Sat 12/131:05 pmOTP - SFO
1 stop16h 30mLufthansa
Deal found 10/29$529
This CrystalTravel 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:30 amSFO - OTP
2 stops18h 00mMultiple Airlines
Fri 1/165:55 amOTP - SFO
1 stop16h 45mMultiple Airlines
Deal found 10/28$531
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.
Fri 11/2811:20 amSFO - OTP
2 stops21h 15mAir Canada
Fri 12/55:55 amOTP - SFO
2 stops40h 25mAir Canada
Deal found 10/28$532
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.
Fri 12/511:11 amSFO - OTP
2 stops21h 24mAir Canada
Sun 1/185:55 amOTP - SFO
2 stops40h 25mAir Canada
Deal found 10/28$533
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.
Sun 11/307:25 pmSFO - OTP
1 stop19h 05mSWISS
Sun 12/146:30 amOTP - SFO
1 stop20h 00mSWISS
Deal found 10/30$535
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.
Mon 12/81:30 pmSFO - OTP
2 stops19h 05mUnited Airlines
Tue 1/135:55 amOTP - SFO
1 stop20h 00mUnited Airlines
Deal found 10/28$537
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/73:35 pmSFO - OTP
2 stops18h 35mMultiple Airlines
Sat 1/176:00 amOTP - SFO
1 stop15h 50mMultiple Airlines
Deal found 10/28$538

Cheap flight deals from Fremont to Bucharest

Keep the following information in mind while searching for Fremont to Bucharest flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$490
(Kiwi.com)

One-way from

$307
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$725
Provider with most accurate pricing for San Francisco-Bucharest (BUH) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Bucharest (BUH) flights.
Search Deals
From Fremont to Bucharest (BUH)
Search Deals
One-way flight from Fremont to Bucharest (BUH)
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($238 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 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 Fremont to Bucharest 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 October 30, 2025.
Use the filters below to find and compare flights from Fremont to Bucharest that are best for you.

Fly from

Fremont

Fly to

Bucharest

Route

Depart

Return

Price

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Thu 11/27

9:40 pm-1:05 am

1 stop17h 25m

Bucharest Otopeni Intl

Wed 12/10

6:05 am-12:40 pm

1 stop16h 35m

$526

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Mon 12/8

2:50 pm-6:35 pm

2 stops17h 45m

Bucharest Otopeni Intl

Sun 1/18

2:50 pm-8:10 pm

1 stop15h 20m

$537

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Mon 12/8

1:30 pm-6:35 pm

2 stops19h 05m

Bucharest Otopeni Intl

Tue 1/13

5:55 am-3:55 pm

1 stop20h 00m

$537

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Sun 12/7

3:35 pm-8:10 pm

2 stops18h 35m

Bucharest Otopeni Intl

Sat 1/17

6:00 am-11:50 am

1 stop15h 50m

$538

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Fri 1/30

6:00 am-1:50 pm

2 stops21h 50m

Bucharest Otopeni Intl

Fri 2/13

6:00 am-11:50 am

1 stop15h 50m

$539

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Sun 12/7

10:40 am-10:50 pm

2 stops26h 10m

Bucharest Otopeni Intl

Sun 1/18

6:00 am-11:50 am

1 stop15h 50m

$539

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Tue 1/27

8:25 am-12:20 pm

2 stops17h 55m

Bucharest Otopeni Intl

Tue 2/10

5:55 am-12:40 pm

1 stop16h 45m

$539

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Sun 12/7

3:35 pm-8:10 pm

2 stops18h 35m

Bucharest Otopeni Intl

Fri 1/16

6:00 am-5:58 pm

2 stops21h 58m

$548

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Thu 1/29

5:00 am-2:05 pm

3 stops23h 05m

Bucharest Otopeni Intl

Thu 2/12

5:50 am-9:22 pm

2 stops25h 32m

$551

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Sun 1/25

12:43 am-2:05 pm

2 stops27h 22m

Bucharest Otopeni Intl

Mon 2/9

5:55 am-12:40 pm

1 stop16h 45m

$551

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 Fremont to Bucharest

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

Cheapflights Insights

Everything you need to know about your flight from Fremont to Bucharest

How far ahead should I book a flight from Fremont to Bucharest?

Use this chart to determine the optimal time to book a round-trip flight from Fremont to Bucharest. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Fremont to Bucharest, you should look to book at least 55 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 Fremont to Bucharest?

Currently, January is the cheapest month in which you can book a flight from Fremont to Bucharest (average of $538). Flying from Fremont to Bucharest in June is currently the most expensive (average of $718). 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 BUH?

Find hourly flight availability from Fremont to Bucharest. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s typically best to fly out from Fremont to Bucharest in the afternoon. Doing so could potentially save you 47% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Fremont to Bucharest?

Use this chart to determine the cheapest time to fly round-trip from Fremont to Bucharest. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Fremont to Bucharest flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Fremont to Bucharest?

Reviews of airlines servicing Bucharest

Get insights into the airlines that provide service to Bucharest. 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 Bucharest. Reviews last updated October 30, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from Fremont to Bucharest to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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
7,993 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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.
KLM
7.7
Good
1,406 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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
8,999 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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.
Turkish Airlines
7.3
Good
4,031 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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.
Lufthansa
6.8
Okay
7,541 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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 Fremont to Bucharest. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Fremont to Bucharest?

    Airlines like Lufthansa, United Airlines, and Delta fly from Fremont to Bucharest in about 17h 25m. The time it takes to get you to your destination can typically vary by up to 4h 25m. There are 6422 mi between Fremont and Bucharest. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Fremont to Bucharest (average of $538). Flying from Fremont to Bucharest in June is currently the most expensive (average of $718). 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 Bucharest?

Book flights to Bucharest if you plan to visit one of these locations
Otopeni

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Fremont to Bucharest

Discover the top 7 airlines that operate flights from Fremont to Bucharest. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$519Average$649FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$538Average$718FlexibilityNo cancel feeOn-time70%
SWISSCheapest$560Average$717FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$590Average$696FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$629Average$1,123FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$660Average$1,082FlexibilityNo cancel feeOn-time69%
KLMCheapest$694Average$1,162FlexibilityNo cancel feeOn-time75%

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