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Otopeni Intl

$301+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — OTP
Mar 3 — Mar 101
Tue 3/3
Tue 3/10
1 adult, Economy
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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 February 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Tue 3/35:30 pm
LAX
-
OTP
1 stop15h 05m
Lufthansa
Tue 3/105:55 am
OTP
-
LAX
1 stop17h 10m
Lufthansa
Deal found 1/31$443
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.
Tue 3/35:30 pm
LAX
-
OTP
1 stop15h 05m
Lufthansa
Tue 3/175:55 am
OTP
-
LAX
1 stop17h 10m
Lufthansa
Deal found 1/30$446
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.
Tue 3/35:30 pm
LAX
-
OTP
1 stop15h 05m
Multiple Airlines
Tue 3/175:55 am
OTP
-
LAX
2 stops25h 05m
Multiple Airlines
Deal found 1/30$466
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Tue 3/35:30 pm
LAX
-
OTP
1 stop15h 05m
Lufthansa
Mon 3/95:55 am
OTP
-
LAX
1 stop17h 10m
Lufthansa
Deal found 1/31$468
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Sun 3/15:30 pm
LAX
-
OTP
1 stop21h 35m
Lufthansa
Sun 3/85:55 am
OTP
-
LAX
1 stop17h 10m
Lufthansa
Deal found 1/31$469
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 3/27:10 pm
LAX
-
OTP
1 stop19h 20m
SWISS
Mon 3/94:40 pm
OTP
-
LAX
1 stop33h 55m
SWISS
Deal found 1/31$470
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 3/47:10 pm
LAX
-
OTP
1 stop19h 15m
SWISS
Wed 3/186:30 am
OTP
-
LAX
1 stop20h 05m
SWISS
Deal found 1/31$471
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 3/25:30 pm
LAX
-
OTP
1 stop15h 05m
Lufthansa
Mon 3/166:05 am
OTP
-
LAX
1 stop19h 10m
Lufthansa
Deal found 1/31$472
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 3/27:10 pm
LAX
-
OTP
1 stop19h 20m
SWISS
Tue 3/106:30 am
OTP
-
LAX
1 stop20h 05m
SWISS
Deal found 1/31$475
This CrystalTravel deal was found by Cheapflights users on 1/31. 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 10/288:10 pm
LAX
-
OTP
1 stop19h 20m
Multiple Airlines
Wed 11/46:05 am
OTP
-
LAX
1 stop17h 00m
Multiple Airlines
Deal found 1/31$477
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Thu 3/57:10 pm
LAX
-
OTP
1 stop19h 15m
Multiple Airlines
Thu 3/125:50 am
OTP
-
LAX
1 stop17h 15m
Multiple Airlines
Deal found 1/31$481
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.
Sun 8/95:30 pm
LAX
-
OTP
1 stop21h 40m
Lufthansa
Fri 11/136:05 am
OTP
-
LAX
1 stop17h 00m
Lufthansa
Deal found 1/29$484

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 February 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$443
(Kiwi.com)

One-way from

$301
(SWISS)

Popular in

June

Cheapest in

September

Average price

$677
Provider with most accurate pricing for Los Angeles-Bucharest (BUH) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Bucharest (BUH) flights.
Search Deals
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. 9% potential increase in price ($73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 1, 2026.
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

Mon 4/6

5:30 pm-1:10 am

1 stop21h 40m

Bucharest Otopeni Intl

Fri 5/8

6:05 am-1:10 pm

1 stop17h 05m

$489

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Tue 4/7

5:30 pm-1:10 am

1 stop21h 40m

Bucharest Otopeni Intl

Fri 5/8

6:05 am-1:10 pm

1 stop17h 05m

$489

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Wed 4/8

5:30 pm-1:10 am

1 stop21h 40m

Bucharest Otopeni Intl

Wed 5/13

6:15 am-3:15 pm

1 stop19h 00m

$491

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Tue 3/3

2:20 pm-6:35 pm

2 stops18h 15m

Bucharest Otopeni Intl

Thu 3/12

5:50 am-2:05 pm

1 stop17h 15m

$494

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Tue 4/7

8:47 am-1:10 am

2 stops30h 23m

Bucharest Otopeni Intl

Tue 5/12

6:15 am-3:15 pm

1 stop19h 00m

$496

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Mon 4/6

5:30 pm-6:35 pm

1 stop15h 05m

Bucharest Otopeni Intl

Wed 5/13

6:05 am-4:03 pm

2 stops19h 58m

$500

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Tue 4/7

10:50 pm-12:45 pm

2 stops27h 55m

Bucharest Otopeni Intl

Tue 5/12

2:00 pm-12:57 am

2 stops20h 57m

$502

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Wed 3/4

8:40 am-12:20 pm

2 stops17h 40m

Bucharest Otopeni Intl

Wed 3/11

6:05 am-5:51 pm

2 stops20h 46m

$504

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Mon 3/23

8:10 pm-12:30 am

1 stop19h 20m

Bucharest Otopeni Intl

Wed 4/8

6:20 am-4:30 pm

1 stop20h 10m

$514

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Tue 4/7

5:30 pm-1:10 am

1 stop21h 40m

Bucharest Otopeni Intl

Fri 5/15

6:05 am-1:10 pm

1 stop17h 05m

$520

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 21 results
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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 January 30, 2026.

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 $692). 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.

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 February 1, 2026.
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
7.5
Good
896 reviews

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Austrian Airlines
7.5
Good
896 reviews
Austrian Airlines
7.5
Good
896 reviews

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Air France
7.4
Good
1,528 reviews
Austrian Airlines
7.5
Good
896 reviews

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Turkish Airlines
7.3
Good
4,214 reviews
Austrian Airlines
7.5
Good
896 reviews

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Lufthansa
6.8
Okay
7,758 reviews
Austrian Airlines
7.5
Good
896 reviews

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
British Airways
6.7
Okay
7,706 reviews
Austrian Airlines
7.5
Good
896 reviews

Food

6.8

Crew

8.1

Comfort

7.3

Overall

7.5

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful

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 18h 15m. 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 KLM, which is currently one of the cheapest options available, starting at $240. SWISS flights start at $357 while deals on Lufthansa start at $362 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 $692). 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 February 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$464Average$700FlexibilityNo cancel feeOn-time76%
LOTCheapest$475Average$719FlexibilityNo cancel feeOn-time81%
Scandinavian AirlinesCheapest$481Average$646FlexibilityNo cancel feeOn-time77%
KLMCheapest$489Average$874FlexibilityNo cancel feeOn-time75%
SWISSCheapest$490Average$637FlexibilityNo cancel feeOn-time79%
DeltaCheapest$491Average$1,023FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$511Average$734FlexibilityNo cancel feeOn-time70%
Austrian AirlinesCheapest$544Average$792FlexibilityNo cancel feeOn-time78%
Turkish AirlinesCheapest$562Average$678FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$570Average$784FlexibilityNo cancel feeOn-time77%

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