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$307+ Cheap flights from San Francisco (SFO) 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 San Francisco 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

Cheap flight deals from San Francisco to Bucharest

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Bucharest (BUH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$507
(CrystalTravel)

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.
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Provider most trusted by Cheapflights users for San Francisco-Bucharest (BUH) flights.
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From San Francisco to Bucharest (BUH)
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One-way flight from San Francisco to Bucharest (BUH)
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Highest demand for flights based on searches. 22% potential increase in price ($238 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from San Francisco to Bucharest

Cheapest flights from San Francisco to Bucharest
Explore the most affordable flight options available from San Francisco 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 stop34h 25mSWISS
Wed 1/144:35 pmOTP - SFO
1 stop33h 55mSWISS
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
Tue 1/138:00 amOTP - SFO
1 stop17h 00mBritish 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
Thu 1/155:50 amOTP - SFO
1 stop20h 05mUnited 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

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 San Francisco to Bucharest that are best for you.

Fly from

San Francisco

Fly to

Bucharest

Route

Depart

Return

Price

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 11/28

6:00 am-1:50 pm

2 stops21h 50m

Bucharest Otopeni Intl

Fri 12/5

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

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

Sat 12/6

10:40 am-10:50 pm

2 stops26h 10m

Bucharest Otopeni Intl

Sat 1/17

1:55 pm-11:50 am

1 stop31h 55m

$539

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Tue 12/9

3:35 pm-10:50 pm

2 stops21h 15m

Bucharest Otopeni Intl

Fri 1/16

6:00 am-11:50 am

1 stop15h 50m

$539

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

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Wed 12/10

4:35 pm-10:25 pm

2 stops19h 50m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 18 results
1
2

Compare providers for flights from San Francisco to Bucharest

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Bucharest in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Bucharest flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Bucharest flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Francisco-Bucharest flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Bucharest flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Bucharest flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Bucharest

Have a flexible travel schedule? Discover the best time to fly to Bucharest from San Francisco 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 San Francisco to Bucharest

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

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

The best time to book flights from San Francisco to Bucharest is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to Bucharest?

Currently, January is the cheapest month in which you can book a flight from San Francisco to Bucharest (average of $538). Flying from San Francisco 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 SFO to BUH?

Find hourly flight availability from San Francisco 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.

A simple way to save on the total cost of your ticket is to fly from San Francisco to Bucharest in the afternoon. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from San Francisco to Bucharest?

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

Travelers seeking maximum savings on their San Francisco 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 San Francisco to Bucharest?

What’s the top layover airport for flights from San Francisco to Bucharest?

Share of 1-stop round-trip flights from San Francisco to Bucharest chosen by Cheapflights users in the past 12 months, using the same layover each way.

Istanbul (IST) – chosen by Cheapflights users on 50% of 1-stop itineraries from San Francisco to Bucharest on Cheapflights.

What’s the cheapest layover airport for flights from San Francisco to Bucharest?

Average round-trip fare for 1-stop flights from San Francisco to Bucharest, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Istanbul (IST) is the most affordable 1-stop option, with an average round-trip price of $691.

What’s the fastest layover option from San Francisco to Bucharest?

Shortest average travel time for 1-stop one-way flights from San Francisco to Bucharest, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Zurich (ZRH) have the shortest average one-way travel time for 1-stop routes: 15h 00m.

Which airport typically offers the quickest layover for flights from San Francisco to Bucharest?

Average layover duration for 1-stop one-way flights from San Francisco to Bucharest, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Istanbul (IST) offer the fastest connection on this route, with an average layover time of 1h 48m.

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.
Read reviews from past customers who have flown Delta, KLM, and United Airlines from San Francisco to Bucharest. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

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

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

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

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

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
8,998 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

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

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

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

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

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

  • What airport do you fly from for flights from San Francisco to Bucharest?

    For a flight from San Francisco to Bucharest, you will be flying from San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 0 outbound flights to Bucharest per day. 7 airlines have flights to Bucharest from San Francisco on a regular basis.

  • How long is the flight from San Francisco to Bucharest?

    A quick flight from San Francisco to Bucharest can take about 17h 45m. United Airlines provides one of the quickest options available for as low as $537. The distance between San Francisco and Bucharest is about 6422 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Francisco to Bucharest round-trip?

    Flying on Scandinavian Airlines is currently your cheapest option to Bucharest, with prices starting at $519. Additional round-trip tickets that might be worth considering are offered by British Airways and SWISS, with the lowest prices starting at $538 and $560, respectively. You may be able to fly from San Francisco to Bucharest for 37% less than the average price by searching for these airlines.

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

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

  • How can I find direct flights from San Francisco to Bucharest?

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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 San Francisco to Bucharest?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Bucharest (average of $538). Flying from San Francisco 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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Top 7 airlines flying from San Francisco to Bucharest

Discover the top 7 airlines that operate flights from San Francisco 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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