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Otopeni Intl

$307+ Cheap flights from Fremont, CA to Otopeni Intl (OTP)

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 — OTP
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 Otopeni Intl are usually found in October or November, booked 48 days in advance, depart on a Monday or Saturday and return on a Friday

Cheap flight deals from Fremont to Otopeni Intl

Keep the following information in mind while searching for Fremont to Otopeni Intl flight deals. Data was 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

October

Average price

$656
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 Fremont to Bucharest Otopeni Intl
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One-way flight from Fremont to Bucharest Otopeni Intl
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Highest demand for flights based on searches. 27% potential increase in price ($319 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($52 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 Fremont to Otopeni Intl

Cheapest flights from Fremont to Otopeni Intl
Explore the most affordable flight options available from Fremont to Otopeni Intl. 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 Fremont to Otopeni Intl 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 Otopeni Intl Airport that are best for you.

Fly from

Fremont

Fly to

Otopeni Intl

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

Best time to book a flight from Fremont to Otopeni Intl

Have a flexible travel schedule? Discover the best time to fly to Otopeni Intl 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 Otopeni Intl Airport

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

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

The price you pay for your flight from Fremont to Bucharest Otopeni Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 48 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Fremont to Bucharest Otopeni Intl Airport (average of $538). Flying from Fremont to Bucharest Otopeni Intl Airport 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 OTP?

Find hourly flight availability from Fremont to Otopeni Intl. 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.

One of the essential ways to save on airfare from Fremont to Bucharest Otopeni Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 47% on airfare.

What is the cheapest day to fly from Fremont to Bucharest Otopeni Intl Airport?

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

Travelers seeking maximum savings on their Fremont to Bucharest Otopeni Intl Airport 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.

Reviews of airlines servicing Otopeni Intl

Get insights into the airlines that provide service to Otopeni Intl. 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 Otopeni Intl. Reviews last updated October 30, 2025.
Peruse reviews from past customers who have flown with KLM, Scandinavian Airlines, and United Airlines from Fremont to Bucharest Otopeni Intl Airport 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.
KLM
7.7
Good
1,406 reviews

Overall

7.7

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.1

Comfort

7.7

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
1,406 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.1

Comfort

7.7

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.
Scandinavian Airlines
7.4
Good
1,548 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.1

Comfort

7.7

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.
United Airlines
7.4
Good
8,998 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.1

Comfort

7.7

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
4,031 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.1

Comfort

7.7

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
7,541 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.1

Comfort

7.7

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 Fremont to Otopeni Intl. 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 Otopeni Intl Airport?

    Airlines like United Airlines and Delta fly from Fremont to Bucharest Otopeni Intl Airport in about 17h 45m. The time it takes to get you to your destination can typically vary by up to 4h 05m. Airlines will cover a distance of 6422 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Fremont to Otopeni Intl 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 Otopeni Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Fremont to Bucharest Otopeni Intl Airport (average of $538). Flying from Fremont to Bucharest Otopeni Intl Airport 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 Otopeni Intl Airport?

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

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Top 7 airlines flying from Fremont to Otopeni Intl

Discover the top 7 airlines that operate flights from Fremont to Otopeni Intl. 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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