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$416+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — SFO
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Bucharest Otopeni Intl to San Francisco are usually found in April or March, 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

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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Mon 12/2211:50 pmOTP - SFO
2 stops48h 40mMultiple Airlines
Mon 3/166:20 pmSFO - OTP
1 stop16h 05mMultiple Airlines
Deal found 12/15$926
This Delta deal was found by Cheapflights users on 12/16. 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.
Fri 12/196:05 amOTP - SFO
1 stop17h 20mDelta
Fri 1/97:10 amSFO - OTP
2 stops20h 40mDelta
Deal found 12/16$974
This KLM deal was found by Cheapflights users on 12/15. 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.
Mon 12/226:00 pmOTP - SFO
1 stop27h 50mMultiple Airlines
Thu 5/148:10 pmSFO - OTP
1 stop17h 15mMultiple Airlines
Deal found 12/15$990
This Delta deal was found by Cheapflights users on 12/15. 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.
Mon 12/226:00 amOTP - SFO
2 stops20h 04mDelta
Thu 5/148:55 amSFO - OTP
2 stops22h 25mDelta
Deal found 12/15$1,001
This KLM deal was found by Cheapflights users on 12/17. 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.
Fri 12/196:00 amOTP - SFO
1 stop15h 50mMultiple Airlines
Fri 1/93:40 pmSFO - OTP
1 stop20h 40mMultiple Airlines
Deal found 12/17$1,045
This SmartFares deal was found by Cheapflights users on 12/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:30 amOTP - SFO
1 stop20h 00mSWISS
Wed 1/77:25 pmSFO - OTP
1 stop19h 00mSWISS
Deal found 12/15$3,393

Find 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 December 18, 2025.

Most accurate provider

oojo
3 stars

Most trusted provider

oojo
3 stars

Round-trip from

$707
(Mytrip)

One-way from

$416
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$992
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
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 18, 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 1/30

3:35 pm-2:35 pm

2 stops33h 00m

San Francisco

Fri 2/6

4:40 pm-10:30 pm

3 stops19h 50m

$707

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Thu 1/29

2:35 pm-2:35 pm

3 stops34h 00m

San Francisco

Thu 2/5

4:40 pm-12:30 am

3 stops21h 50m

$739

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Thu 1/15

9:35 pm-2:35 pm

2 stops27h 00m

San Francisco

Thu 1/22

4:40 pm-3:10 am

3 stops24h 30m

$742

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Wed 4/22

9:45 pm-10:45 am

1 stop23h 00m

San Francisco

Wed 5/13

6:50 pm-2:35 pm

1 stop33h 45m

$787

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Fri 2/27

3:30 pm-4:45 pm

1 stop35h 15m

San Francisco

Thu 3/12

7:50 pm-2:10 pm

1 stop33h 20m

$788

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Fri 1/30

9:50 pm-11:05 am

1 stop23h 15m

San Francisco

Fri 2/6

6:50 pm-8:30 pm

1 stop15h 40m

$802

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Mon 1/26

9:50 pm-11:05 am

1 stop23h 15m

San Francisco

Sun 2/8

6:50 pm-8:50 am

1 stop28h 00m

$802

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Mon 1/19

3:30 pm-11:05 am

1 stop29h 35m

San Francisco

Sun 2/1

6:50 pm-2:10 pm

1 stop33h 20m

$806

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Wed 2/4

3:40 pm-12:10 pm

2 stops54h 30m

$416

BucharestSan Francisco

OTP - SFO

OTPSFO

Bucharest Otopeni Intl

Thu 1/15

10:15 am-4:05 pm

3 stops39h 50m

$446

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
oojoPrice Accuracy3 starsTrust Score*3 stars
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 December 12, 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 $445). Flying from Bucharest Otopeni Intl Airport to San Francisco in December 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 December 18, 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 December 18, 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
1,428 reviews

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.2

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,428 reviews
KLM
7.7
Good
1,428 reviews

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.2

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
SWISS
7.5
Good
1,817 reviews
KLM
7.7
Good
1,428 reviews

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.2

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Turkish Airlines
7.3
Good
4,103 reviews
KLM
7.7
Good
1,428 reviews

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.2

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Lufthansa
6.8
Okay
7,637 reviews
KLM
7.7
Good
1,428 reviews

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.2

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,586 reviews
KLM
7.7
Good
1,428 reviews

Entertainment

7.1

Crew

8.4

Overall

7.7

Boarding

7.8

Food

7.2

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 fly from Bucharest Otopeni Intl Airport to San Francisco in about 23h. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 6422 mi.

  • 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 $445). Flying from Bucharest Otopeni Intl Airport to San Francisco in December 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
Manteca
Watsonville
Redwood City
Sunnyvale
Santa Clara
San Bruno
Daly City
San Carlos
Vallejo
Hollister
San Ramon
Foster City
Union City
Davis
Emeryville

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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$714Average$801FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$722Average$972FlexibilityNo cancel feeOn-time76%
KLMCheapest$807Average$918FlexibilityNo cancel feeOn-time75%
SWISSCheapest$827Average$992FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$842Average$1,131FlexibilityNo cancel feeOn-time77%

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