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Otopeni Intl

$265+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — OTP
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to Bucharest Otopeni Intl are usually found in September or February, booked 79 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap 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 octubre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$540
(United Airlines)

One-way from

$265
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$635
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
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One-way flight from Riverside to Bucharest Otopeni Intl
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Highest demand for flights based on searches. 2% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 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 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 octubre 30, 2025.

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.
mar. 11/255:30 pmLAX - OTP
2 stops20h 25mLufthansa
lun. 1/127:20 pmOTP - LAX
2 stops39h 14mLufthansa
Deal found 10/28$538
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/287:15 amLAX - OTP
2 stops20h 35mDelta
sáb. 1/176:00 amOTP - LAX
1 stop15h 45mDelta
Deal found 10/28$539
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.
lun. 12/15:30 pmLAX - OTP
2 stops20h 20mAustrian Airlines
lun. 12/157:10 pmOTP - LAX
2 stops27h 55mAustrian Airlines
Deal found 10/28$540
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/295:30 pmLAX - OTP
1 stop15h 05mLufthansa
sáb. 1/175:55 amOTP - LAX
2 stops24h 49mLufthansa
Deal found 10/28$541
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/275:30 pmLAX - OTP
1 stop21h 35mLufthansa
mié. 1/77:20 pmOTP - LAX
1 stop29h 55mLufthansa
Deal found 10/28$542
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.
sáb. 11/295:30 pmLAX - OTP
1 stop15h 05mLufthansa
sáb. 12/136:05 amOTP - LAX
1 stop19h 10mLufthansa
Deal found 10/28$544
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.
sáb. 11/2910:20 pmLAX - OTP
1 stop17h 25mLOT
vie. 1/166:25 pmOTP - LAX
1 stop35h 55mLOT
Deal found 10/28$546
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.
lun. 11/247:10 pmLAX - OTP
1 stop19h 20mSWISS
mié. 1/144:35 pmOTP - LAX
1 stop34h 00mSWISS
Deal found 10/28$549
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.
sáb. 11/295:30 pmLAX - OTP
2 stops20h 20mUnited Airlines
mar. 1/135:55 amOTP - LAX
2 stops23h 18mUnited Airlines
Deal found 10/28$550
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.
sáb. 11/295:30 pmLAX - OTP
1 stop21h 35mLufthansa
jue. 1/86:05 amOTP - LAX
1 stop19h 10mLufthansa
Deal found 10/28$552
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/2910:25 amLAX - OTP
2 stops18h 40mMultiple Airlines
sáb. 1/178:05 amOTP - LAX
2 stops23h 05mMultiple Airlines
Deal found 10/28$553
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.
vie. 11/286:00 amLAX - OTP
2 stops26h 35mUnited Airlines
jue. 1/85:50 amOTP - LAX
2 stops26h 05mUnited Airlines
Deal found 10/28$554

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 octubre 30, 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

vie. 11/28

5:30 pm-6:35 pm

1 stop15h 05m

Bucharest Otopeni Intl

mié. 1/7

7:20 pm-3:15 pm

1 stop29h 55m

$542

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

dom. 4/26

8:45 am-6:35 pm

2 stops23h 50m

Bucharest Otopeni Intl

dom. 5/10

1:50 pm-11:45 pm

2 stops19h 55m

$550

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

sáb. 11/29

5:30 pm-11:50 pm

2 stops20h 20m

Bucharest Otopeni Intl

mar. 1/20

5:55 am-7:09 pm

2 stops23h 14m

$550

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

lun. 3/30

7:35 am-11:55 am

2 stops18h 20m

Bucharest Otopeni Intl

lun. 4/13

6:00 am-3:15 pm

2 stops19h 15m

$551

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

sáb. 2/28

12:25 am-2:05 pm

2 stops27h 40m

Bucharest Otopeni Intl

dom. 3/15

5:55 am-2:05 pm

1 stop17h 10m

$553

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

mar. 1/6

4:49 pm-12:30 pm

2 stops33h 41m

Bucharest Otopeni Intl

mar. 1/13

5:55 am-3:15 pm

2 stops43h 20m

$556

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

jue. 11/27

8:50 am-2:05 pm

2 stops19h 15m

Bucharest Otopeni Intl

lun. 1/12

2:50 pm-5:20 pm

2 stops36h 30m

$557

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

dom. 11/30

5:30 pm-6:35 pm

1 stop15h 05m

Bucharest Otopeni Intl

jue. 12/11

5:50 am-1:05 pm

1 stop17h 15m

$583

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

dom. 11/30

5:30 pm-6:35 pm

1 stop15h 05m

Bucharest Otopeni Intl

vie. 12/12

6:05 am-3:15 pm

1 stop19h 10m

$585

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

dom. 3/1

11:08 am-2:05 pm

2 stops16h 57m

Bucharest Otopeni Intl

dom. 3/15

5:55 am-5:35 pm

2 stops20h 40m

$588

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 October 24, 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 $685). 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 octubre 30, 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 39% 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 octubre 30, 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
862 reviews

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Food

6.8

Entertainment

6.8

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
862 reviews
Austrian Airlines
7.6
Good
862 reviews

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Food

6.8

Entertainment

6.8

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
1,482 reviews
Austrian Airlines
7.6
Good
862 reviews

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Food

6.8

Entertainment

6.8

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
4,033 reviews
Austrian Airlines
7.6
Good
862 reviews

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Food

6.8

Entertainment

6.8

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
7,542 reviews
Austrian Airlines
7.6
Good
862 reviews

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Food

6.8

Entertainment

6.8

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
7,488 reviews
Austrian Airlines
7.6
Good
862 reviews

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Food

6.8

Entertainment

6.8

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 15h 05m. Riverside and Bucharest Otopeni Intl Airport are separated by a distance of 6568 mi. This flight may include one or multiple stops.

  • 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 $685). 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 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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$444Average$729FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$481Average$646FlexibilityNo cancel feeOn-time77%
SWISSCheapest$495Average$625FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$499Average$734FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$502Average$746FlexibilityNo cancel feeOn-time71%
LOTCheapest$507Average$726FlexibilityNo cancel feeOn-time81%
Austrian AirlinesCheapest$555Average$795FlexibilityNo cancel feeOn-time78%
DeltaCheapest$564Average$1,020FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$568Average$800FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$571Average$669FlexibilityNo cancel feeOn-time77%

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