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Otopeni Intl

$250+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — OTP
Mar 1 — Mar 81
Sun 3/1
Sun 3/8
1 adult, Economy
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Cheap 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 January 30, 2026.

This Mytrip deal was found by Cheapflights users on 1/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:05 pm
SFO
-
OTP
1 stop18h 05m
Multiple Airlines
Wed 9/166:05 am
OTP
-
SFO
2 stops22h 36m
Multiple Airlines
Deal found 1/29$523
This KAYAK deal was found by Cheapflights users on 1/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:35 pm
SFO
-
OTP
1 stop36h 50m
British Airways
Wed 8/194:15 pm
OTP
-
SFO
1 stop31h 35m
British Airways
Deal found 1/29$527
This KAYAK deal was found by Cheapflights users on 1/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/294:35 pm
SFO
-
OTP
1 stop36h 05m
British Airways
Mon 11/24:00 pm
OTP
-
SFO
1 stop33h 00m
British Airways
Deal found 1/29$532
This CrystalTravel deal was found by Cheapflights users on 1/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:40 pm
SFO
-
OTP
1 stop17h 25m
Lufthansa
Tue 12/16:05 am
OTP
-
SFO
1 stop16h 35m
Lufthansa
Deal found 1/30$534
This CrystalTravel deal was found by Cheapflights users on 1/29. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:05 pm
SFO
-
OTP
1 stop18h 05m
Lufthansa
Wed 9/166:05 am
OTP
-
SFO
1 stop16h 35m
Lufthansa
Deal found 1/29$535
This CrystalTravel deal was found by Cheapflights users on 1/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:05 pm
SFO
-
OTP
1 stop18h 05m
Lufthansa
Fri 9/116:15 am
OTP
-
SFO
1 stop22h 45m
Lufthansa
Deal found 1/30$536
This CrystalTravel deal was found by Cheapflights users on 1/28. 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.
Wed 5/69:05 pm
SFO
-
OTP
1 stop18h 05m
Lufthansa
Wed 5/276:05 am
OTP
-
SFO
1 stop16h 35m
Lufthansa
Deal found 1/28$537
This Mytrip deal was found by Cheapflights users on 1/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:30 am
SFO
-
OTP
2 stops25h 10m
Multiple Airlines
Tue 12/16:05 am
OTP
-
SFO
1 stop16h 35m
Multiple Airlines
Deal found 1/30$540
This Kiwi.com deal was found by Cheapflights users on 1/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2510:40 pm
SFO
-
OTP
1 stop17h 25m
Lufthansa
Wed 4/86:05 am
OTP
-
SFO
1 stop16h 35m
Lufthansa
Deal found 1/30$547
This Air Canada deal was found by Cheapflights users on 1/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/14:30 pm
SFO
-
OTP
2 stops33h 30m
Air Canada
Tue 11/36:30 am
OTP
-
SFO
2 stops24h 52m
Air Canada
Deal found 1/29$548

Find 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 January 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$506
(Mytrip)

One-way from

$250
(oojo)

Popular in

June

Cheapest in

November

Average price

$769
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 Otopeni Intl
Search Deals
One-way flight from Fremont to Bucharest Otopeni Intl
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($230 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 30, 2026.
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

Wed 5/6

9:05 pm-1:10 am

1 stop18h 05m

Bucharest Otopeni Intl

Wed 5/27

6:05 am-12:40 pm

1 stop16h 35m

$551

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Mon 5/4

9:05 pm-1:10 am

1 stop18h 05m

Bucharest Otopeni Intl

Wed 5/27

6:05 am-7:50 pm

1 stop23h 45m

$551

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Sun 5/3

9:05 pm-1:10 am

1 stop18h 05m

Bucharest Otopeni Intl

Wed 5/27

6:05 am-7:50 pm

1 stop23h 45m

$551

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Tue 5/5

9:05 pm-1:10 am

1 stop18h 05m

Bucharest Otopeni Intl

Fri 5/29

6:05 am-3:15 pm

1 stop19h 10m

$551

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Wed 5/6

9:05 pm-1:10 am

1 stop18h 05m

Bucharest Otopeni Intl

Fri 5/29

6:05 am-3:15 pm

1 stop19h 10m

$551

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Mon 5/4

9:05 pm-1:10 am

1 stop18h 05m

Bucharest Otopeni Intl

Fri 5/29

6:05 am-3:15 pm

1 stop19h 10m

$551

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Sun 5/3

9:05 pm-1:10 am

1 stop18h 05m

Bucharest Otopeni Intl

Tue 5/26

6:05 am-5:46 pm

2 stops21h 41m

$561

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Mon 5/4

9:05 pm-1:10 am

1 stop18h 05m

Bucharest Otopeni Intl

Thu 5/28

6:05 am-5:44 pm

2 stops21h 39m

$561

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Mon 5/4

9:05 pm-1:10 am

1 stop18h 05m

Bucharest Otopeni Intl

Tue 5/26

6:05 am-5:46 pm

2 stops21h 41m

$561

San FranciscoBucharest

SFO - OTP

SFOOTP

San Francisco

Tue 5/19

4:35 pm-1:20 am

1 stop22h 45m

$250

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 20 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 January 23, 2026.

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 85 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, March is the cheapest month in which you can book a flight from Fremont to Bucharest Otopeni Intl Airport (average of $506). 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.

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

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 January 30, 2026.
Peruse reviews from past customers who have flown with KLM, United Airlines, and Turkish 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
1,443 reviews

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,443 reviews
KLM
7.7
Good
1,443 reviews

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,215 reviews
KLM
7.7
Good
1,443 reviews

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Turkish Airlines
7.3
Good
4,205 reviews
KLM
7.7
Good
1,443 reviews

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,756 reviews
KLM
7.7
Good
1,443 reviews

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,705 reviews
KLM
7.7
Good
1,443 reviews

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 fly from Fremont to Bucharest Otopeni Intl Airport in about 18h 05m. 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 to fly from Fremont to Bucharest Otopeni Intl Airport one-way?

    The cheapest airline one-way is Turkish Airlines, with whom users have recently found tickets for as low as $421. However, be on the lookout for offers from Lufthansa and KLM, as they are both options that can get you from Fremont to Bucharest Otopeni Intl Airport for a low price.

  • 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, March is the cheapest month in which you can book a flight from Fremont to Bucharest Otopeni Intl Airport (average of $506). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Fremont to Otopeni Intl

Discover the top 6 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 January 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$538Average$888FlexibilityNo cancel feeOn-time70%
SWISSCheapest$560Average$860FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$592Average$691FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$620Average$1,031FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$660Average$1,140FlexibilityNo cancel feeOn-time69%
KLMCheapest$661Average$811FlexibilityNo cancel feeOn-time75%

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