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Otopeni Intl

$281+ Cheap flights from Riverside, 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — OTP
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to Bucharest Otopeni Intl are usually found in September or October, booked 79 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Riverside to Otopeni Intl

Cheapest flights from Riverside to Otopeni Intl
Explore the most affordable flight options available from Riverside to Otopeni Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This CrystalTravel deal was found by Cheapflights users on 12/11. 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 12/315:30 pmLAX - OTP
1 stop21h 35mLufthansa
Tue 3/316:05 amOTP - LAX
1 stop17h 00mLufthansa
Deal found 12/11$555
This CrystalTravel deal was found by Cheapflights users on 12/11. 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 12/317:00 pmLAX - OTP
2 stops19h 25mMultiple Airlines
Tue 3/316:05 amOTP - LAX
1 stop17h 00mMultiple Airlines
Deal found 12/11$563
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/105:30 pmLAX - OTP
2 stops20h 20mMultiple Airlines
Wed 12/176:30 amOTP - LAX
1 stop20h 05mMultiple Airlines
Deal found 12/10$608
This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:10 pmLAX - OTP
1 stop19h 15mSWISS
Wed 12/176:30 amOTP - LAX
1 stop20h 05mSWISS
Deal found 12/10$628
This CrystalTravel deal was found by Cheapflights users on 12/10. 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.
Fri 12/125:30 pmLAX - OTP
1 stop15h 05mMultiple Airlines
Sun 12/147:10 pmOTP - LAX
2 stops30h 05mMultiple Airlines
Deal found 12/10$754
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/267:21 amLAX - OTP
2 stops30h 29mUnited Airlines
Fri 1/92:50 pmOTP - LAX
2 stops58h 27mUnited Airlines
Deal found 12/11$774
This FlightHub deal was found by Cheapflights users on 12/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:30 pmLAX - OTP
1 stop15h 05mLufthansa
Sun 12/147:20 pmOTP - LAX
1 stop29h 55mLufthansa
Deal found 12/10$781
This Gotogate deal was found by Cheapflights users on 12/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:00 pmLAX - OTP
2 stops16h 50mAustrian Airlines
Sun 12/147:10 pmOTP - LAX
2 stops27h 55mAustrian Airlines
Deal found 12/10$843
This KAYAK deal was found by Cheapflights users on 12/11. 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 12/125:30 pmLAX - OTP
1 stop21h 35mLufthansa
Fri 1/96:05 amOTP - LAX
2 stops25h 05mLufthansa
Deal found 12/11$897
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 12/313:00 pmLAX - OTP
1 stop22h 55mLufthansa
Wed 1/76:05 amOTP - LAX
2 stops24h 39mLufthansa
Deal found 12/11$905

Find flight deals from Riverside to Otopeni Intl

Keep the following information in mind while searching for Riverside to Otopeni Intl flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$531
(KAYAK)

One-way from

$281
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$851
Provider with most accurate pricing for Los Angeles-Bucharest (BUH) flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Bucharest (BUH) flights.
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From Riverside to Bucharest Otopeni Intl
Search Deals
One-way flight from Riverside to Bucharest Otopeni Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside 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 December 12, 2025.
Use the filters below to find and compare flights from Riverside to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Riverside

Fly to

Otopeni Intl

Route

Depart

Return

Price

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Wed 1/21

9:00 pm-11:30 pm

1 stop16h 30m

Bucharest Otopeni Intl

Sun 1/25

7:35 am-6:30 pm

1 stop20h 55m

$538

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Sun 4/12

5:30 pm-1:00 am

1 stop21h 30m

Bucharest Otopeni Intl

Sat 5/9

6:05 am-3:15 pm

1 stop19h 10m

$538

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Fri 4/10

4:45 pm-11:30 pm

1 stop20h 45m

Bucharest Otopeni Intl

Wed 5/6

8:35 am-2:45 pm

1 stop16h 10m

$538

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Mon 4/6

5:30 pm-1:00 am

1 stop21h 30m

Bucharest Otopeni Intl

Sat 5/9

6:05 am-3:15 pm

1 stop19h 10m

$538

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Fri 4/10

4:45 pm-11:30 pm

1 stop20h 45m

Bucharest Otopeni Intl

Thu 5/7

7:00 am-11:50 am

1 stop14h 50m

$538

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Tue 4/7

5:30 pm-6:35 pm

1 stop15h 05m

Bucharest Otopeni Intl

Sat 5/9

6:05 am-3:15 pm

1 stop19h 10m

$538

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Fri 1/9

8:27 am-2:10 pm

2 stops19h 43m

Bucharest Otopeni Intl

Thu 3/26

5:50 am-6:25 pm

2 stops21h 35m

$538

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Thu 4/9

4:45 pm-5:20 pm

1 stop14h 35m

Bucharest Otopeni Intl

Tue 5/5

7:00 am-11:50 am

1 stop14h 50m

$539

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Sun 4/12

3:30 pm-1:45 pm

2 stops36h 15m

Bucharest Otopeni Intl

Sun 5/10

6:30 am-4:25 pm

1 stop19h 55m

$547

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Fri 1/9

8:27 am-2:10 pm

2 stops19h 43m

Bucharest Otopeni Intl

Mon 3/23

2:50 pm-2:05 pm

1 stop32h 15m

$548

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 20 results
1
2

Best time to book a flight from Riverside to Otopeni Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Otopeni Intl. Price data was last updated on December 5, 2025.

The best time to book flights from Riverside to Bucharest Otopeni Intl Airport is 79 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 Riverside to Bucharest Otopeni Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Riverside to Bucharest Otopeni Intl Airport (average of $441). Flying from Riverside to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $687). 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 R1V to OTP?

Find hourly flight availability from Riverside 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 December 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Riverside to Bucharest Otopeni Intl Airport in the evening. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight at noon.

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

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

Travelers seeking maximum savings on their Riverside to Bucharest Otopeni Intl Airport flight should consider departing on Sunday evenings when fares are most often at their lowest. Sunday at noon 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 December 12, 2025.
See what other customers who have flown with Austrian Airlines, Air France, and Turkish Airlines from Riverside to Bucharest Otopeni Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
879 reviews

Food

6.8

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Austrian Airlines
7.6
Good
879 reviews
Austrian Airlines
7.6
Good
879 reviews

Food

6.8

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Air France
7.4
Good
1,504 reviews
Austrian Airlines
7.6
Good
879 reviews

Food

6.8

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Turkish Airlines
7.3
Good
4,088 reviews
Austrian Airlines
7.6
Good
879 reviews

Food

6.8

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Lufthansa
6.8
Okay
7,626 reviews
Austrian Airlines
7.6
Good
879 reviews

Food

6.8

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
British Airways
6.7
Okay
7,571 reviews
Austrian Airlines
7.6
Good
879 reviews

Food

6.8

Comfort

7.3

Crew

8.1

Boarding

7.6

Entertainment

6.8

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Related info for your journey

Find useful and relevant information for your journey from Riverside 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 Riverside to Bucharest Otopeni Intl Airport?

    Departing from Riverside to Bucharest Otopeni Intl Airport will take you 16h 30m. Riverside and Bucharest Otopeni Intl Airport are separated by a distance of 6568 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Riverside to Bucharest Otopeni Intl Airport one-way?

    To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at $302. SWISS flights start at $319 while deals on Turkish Airlines start at $398 one-way.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Riverside to Bucharest Otopeni Intl Airport (average of $441). Flying from Riverside to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $687). 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 10 airlines flying from Riverside to Otopeni Intl

Discover the top 10 airlines that operate flights from Riverside 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LOTCheapest$443Average$703FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$452Average$733FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$481Average$646FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$484Average$681FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$499Average$733FlexibilityNo cancel feeOn-time70%
SWISSCheapest$542Average$637FlexibilityNo cancel feeOn-time79%
Austrian AirlinesCheapest$555Average$794FlexibilityNo cancel feeOn-time78%
Air FranceCheapest$559Average$783FlexibilityNo cancel feeOn-time77%
DeltaCheapest$560Average$1,007FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$571Average$666FlexibilityNo cancel feeOn-time77%

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