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$581+ Cheap flights from Otopeni Intl (OTP) to San Francisco (SFO)

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — SFO
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
1 adult, Economy
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Cheapflights Tip: The best prices from Bucharest Otopeni Intl to San Francisco are usually found in March or April, booked 68 days in advance, depart on a Friday or Tuesday and return on a Monday

Cheap flight deals from Otopeni Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Otopeni Intl (OTP) to San Francisco (SFO). 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 November 19, 2025.

Most accurate provider

oojo
3 stars

Most trusted provider

oojo
3 stars

Round-trip from

$805
(Kiwi.com)

One-way from

$581
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$923
Provider with most accurate pricing for Bucharest Otopeni Intl-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Bucharest Otopeni Intl-San Francisco flights.
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From Bucharest Otopeni Intl to San Francisco
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One-way flight from Bucharest Otopeni Intl to San Francisco
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Highest demand for flights based on searches. 7% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Otopeni Intl to San Francisco

Cheapest flights from Otopeni Intl to San Francisco
Explore the most affordable flight options available from Otopeni Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 19, 2025.

This Delta deal was found by Cheapflights users on 11/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:00 amOTP - SFO
1 stop15h 50mDelta
Thu 4/301:45 pmSFO - OTP
1 stop17h 35mDelta
Deal found 11/18$874
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:00 amOTP - SFO
1 stop15h 50mDelta
Sat 1/103:40 pmSFO - OTP
1 stop21h 10mDelta
Deal found 11/19$891
This KLM deal was found by Cheapflights users on 11/18. 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.
Sat 12/136:00 amOTP - SFO
1 stop15h 50mMultiple Airlines
Sat 12/273:40 pmSFO - OTP
1 stop34h 25mMultiple Airlines
Deal found 11/18$893
This Cheapflightsfares deal was found by Cheapflights users on 11/18. 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.
Sat 12/135:55 amOTP - SFO
1 stop24h 15mLufthansa
Sat 12/279:40 pmSFO - OTP
1 stop17h 25mLufthansa
Deal found 11/18$894
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:00 amOTP - SFO
1 stop15h 50mDelta
Thu 1/812:40 amSFO - OTP
2 stops26h 20mDelta
Deal found 11/19$897
This United Airlines deal was found by Cheapflights users on 11/19. 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 12/222:50 pmOTP - SFO
1 stop31h 50mUnited Airlines
Fri 1/91:35 pmSFO - OTP
1 stop14h 35mUnited Airlines
Deal found 11/19$919
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:05 amOTP - SFO
2 stops21h 59mDelta
Sun 1/117:00 amSFO - OTP
2 stops19h 05mDelta
Deal found 11/19$935
This Lufthansa deal was found by Cheapflights users on 11/19. 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.
Fri 12/195:55 amOTP - SFO
1 stop20h 00mLufthansa
Fri 1/91:35 pmSFO - OTP
1 stop14h 35mLufthansa
Deal found 11/19$947

Cheapflights Fare Finder

 
Customize your flight search to find flights from Otopeni Intl to San Francisco 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 November 19, 2025.
Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to San Francisco that are best for you.

Fly from

Otopeni Intl

Fly to

San Francisco

Route

Depart

Return

Price

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Fri 2/27

9:50 pm-11:05 am

1 stop23h 15m

San Francisco

Thu 3/12

7:50 pm-8:50 am

1 stop28h 00m

$861

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Mon 1/12

8:15 pm-4:30 pm

2 stops30h 15m

San Francisco

Wed 1/28

7:25 pm-1:30 am

2 stops20h 05m

$865

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Sat 2/21

5:55 am-8:10 pm

1 stop24h 15m

San Francisco

Sat 8/8

5:00 am-6:35 pm

2 stops27h 35m

$865

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Mon 1/12

2:50 pm-8:10 pm

1 stop15h 20m

San Francisco

Wed 1/28

8:30 am-2:00 pm

2 stops19h 30m

$866

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Fri 2/27

6:00 am-11:50 am

1 stop15h 50m

San Francisco

Thu 3/12

1:00 pm-10:50 pm

2 stops24h 50m

$869

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Sat 2/21

5:55 am-9:06 pm

2 stops25h 11m

San Francisco

Sun 5/31

9:05 pm-1:00 am

1 stop17h 55m

$870

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Sat 2/21

6:00 am-11:50 am

1 stop15h 50m

San Francisco

Sat 5/30

6:05 am-5:20 pm

2 stops25h 15m

$885

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Thu 12/18

6:00 am-11:50 am

1 stop15h 50m

San Francisco

Sun 1/11

8:55 am-10:50 pm

2 stops27h 55m

$891

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Thu 12/18

6:00 am-11:50 am

1 stop15h 50m

San Francisco

Sat 1/10

3:40 pm-10:50 pm

1 stop21h 10m

$891

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Thu 12/18

6:00 am-11:50 am

1 stop15h 50m

San Francisco

Fri 1/9

5:55 am-10:50 pm

2 stops30h 55m

$891

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 13 results
1
2

Compare providers for flights from Otopeni Intl to San Francisco

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 Otopeni Intl to San Francisco in November.
ProviderPrice AccuracyTrust Score*
oojoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Bucharest Otopeni Intl Airport-San Francisco flights, users find the pricing of oojo to be most consistent on Cheapflights vs. oojo Users can find the same prices on Bucharest Otopeni Intl Airport-San Francisco flight deals on Cheapflights vs. oojo >95% of the time. Price accuracy is based on data collected from Bucharest Otopeni Intl Airport-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bucharest Otopeni Intl Airport-San Francisco flights, Cheapflights users trust oojo the most. oojo 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 Bucharest Otopeni Intl Airport-San Francisco 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 Otopeni Intl to San Francisco

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

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

Use this chart to determine the optimal time to book a round-trip flight from Otopeni Intl to San Francisco. Price data was last updated on November 14, 2025.

Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Bucharest Otopeni Intl Airport to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to San Francisco (average of $444). Flying from Bucharest Otopeni Intl Airport to San Francisco in July is currently the most expensive (average of $820). 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 OTP to SFO?

Find hourly flight availability from Otopeni Intl to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 19, 2025.

One of the essential ways to save on airfare from Bucharest Otopeni Intl Airport to San Francisco is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 16% on airfare.

How much does it cost to fly round-trip from Bucharest Otopeni Intl Airport to San Francisco?

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated November 19, 2025.
Get a feel of what it's like to fly with KLM, SWISS, and Turkish Airlines from Bucharest Otopeni Intl Airport to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,412 reviews

Crew

8.4

Food

7.3

Boarding

7.8

Comfort

7.7

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,412 reviews
KLM
7.7
Good
1,412 reviews

Crew

8.4

Food

7.3

Boarding

7.8

Comfort

7.7

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
SWISS
7.5
Good
1,788 reviews
KLM
7.7
Good
1,412 reviews

Crew

8.4

Food

7.3

Boarding

7.8

Comfort

7.7

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Turkish Airlines
7.3
Good
4,045 reviews
KLM
7.7
Good
1,412 reviews

Crew

8.4

Food

7.3

Boarding

7.8

Comfort

7.7

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,579 reviews
KLM
7.7
Good
1,412 reviews

Crew

8.4

Food

7.3

Boarding

7.8

Comfort

7.7

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,534 reviews
KLM
7.7
Good
1,412 reviews

Crew

8.4

Food

7.3

Boarding

7.8

Comfort

7.7

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Otopeni Intl to San Francisco. 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 into for flights to San Francisco from Bucharest Otopeni Intl?

    Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Bucharest Otopeni Intl. On average, San Francisco has 0 inbound flights from Bucharest Otopeni Intl per day from 5 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

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

    Airlines like Turkish Airlines and United Airlines fly from Bucharest Otopeni Intl Airport to San Francisco in about 23h 15m. The time it takes to get you to your destination can typically vary by up to 1h. Airlines will cover a distance of 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 Bucharest Otopeni Intl Airport to San Francisco round-trip?

    Cheapflights users have booked flights from Bucharest Otopeni Intl Airport to San Francisco round-trip from $714. Other airlines that can offer you cheap pricing are Lufthansa, from $722, and KLM, from $807. British Airways is 22% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to San Francisco (average of $444). Flying from Bucharest Otopeni Intl Airport to San Francisco in July is currently the most expensive (average of $820). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
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Watsonville
Sunnyvale
Santa Clara
Vallejo
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Top 5 airlines flying from Otopeni Intl to San Francisco

Discover the top 5 airlines that operate flights from Otopeni Intl to San Francisco. 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 November 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$714Average$815FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$722Average$925FlexibilityNo cancel feeOn-time76%
KLMCheapest$807Average$880FlexibilityNo cancel feeOn-time75%
SWISSCheapest$827Average$992FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$842Average$1,116FlexibilityNo cancel feeOn-time77%

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