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Cheap flights from California to Bucharest from $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Bucharest departing on 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from California to Bucharest

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:17 pm - 11:15 pm
ONT
-
OTP
48h 58m
2 stops
Delta Logo
2:00 pm - 11:16 am
OTP
-
ONT
55h 16m
2 stops
$719Delta
Sat, Oct 31 - Tue, Nov 17
KLM Logo
7:00 am - 3:25 pm
BUR
-
OTP
22h 25m
2 stops
KLM Logo
6:00 pm - 4:06 pm
OTP
-
BUR
32h 06m
2 stops
$722KLM
Sun, Oct 18 - Tue, Nov 3
Air France Logo
12:18 pm - 3:50 pm
ONT
-
OTP
17h 32m
2 stops
Air France Logo
6:05 am - 4:12 pm
OTP
-
ONT
20h 07m
2 stops
$725Air France
Tue, Nov 3 - Wed, Nov 18
United Airlines Logo
9:01 am - 4:30 pm
ONT
-
OTP
21h 29m
2 stops
United Airlines Logo
6:05 am - 8:01 pm
OTP
-
ONT
23h 56m
2 stops
$732United Airlines
Sun, Aug 16 - Wed, Aug 26
United Airlines Logo
1:18 pm - 6:35 pm
ONT
-
OTP
19h 17m
2 stops
United Airlines Logo
6:05 am - 6:16 pm
OTP
-
ONT
22h 11m
2 stops
$743United Airlines
Wed, Aug 26 - Wed, Sep 2
Lufthansa Logo
5:15 pm - 6:35 pm
SAN
-
OTP
15h 20m
1 stop
Lufthansa Logo
6:05 am - 3:45 pm
OTP
-
SAN
19h 40m
1 stop
$748Lufthansa
Wed, Oct 21 - Tue, Nov 3
Lufthansa Logo
5:15 pm - 6:35 pm
SAN
-
OTP
15h 20m
1 stop
Lufthansa Logo
6:05 am - 3:45 pm
OTP
-
SAN
19h 40m
1 stop
$749Lufthansa
Wed, Oct 21 - Tue, Nov 3
Multiple Airlines Logo
5:15 pm - 6:35 pm
SAN
-
OTP
15h 20m
1 stop
Multiple Airlines Logo
6:05 am - 5:59 pm
OTP
-
SAN
21h 54m
2 stops
$750Multiple Airlines
Wed, Oct 21 - Tue, Nov 3
Multiple Airlines Logo
10:25 am - 3:45 pm
ONT
-
OTP
20h 20m
2 stops
Multiple Airlines Logo
8:25 am - 10:23 pm
OTP
-
ONT
23h 58m
2 stops
$759Multiple Airlines
Wed, Oct 28 - Wed, Nov 4
Air France Logo
6:00 am - 3:50 pm
OAK
-
OTP
23h 50m
2 stops
Air France Logo
3:40 pm - 4:14 pm
OTP
-
OAK
34h 34m
2 stops
$1,004Air France
Mon, Aug 10 - Wed, Aug 19

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Air Canada flights from California to Bucharest Otopeni Intl Airport

Our best Air Canada deals on California to Bucharest Otopeni Intl Airport flight tickets
Air Canada
Oct 18
BUR7:00 amBurbank Bob Hope
23h 30m
3 stops
OTP4:30 pmBucharest Otopeni Intl
Nov 3
OTP6:55 amBucharest Otopeni Intl
35h 44m
3 stops
BUR8:39 amBurbank Bob Hope
$755
Air Canada
Nov 9
SAN12:55 pmSan Diego
40h 55m
2 stops
OTP3:50 pmBucharest Otopeni Intl
Nov 12
OTP6:30 amBucharest Otopeni Intl
39h 30m
2 stops
SAN12:00 pmSan Diego
$771
Air Canada
Oct 11
SAN7:00 amSan Diego
25h 35m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Oct 20
OTP6:05 amBucharest Otopeni Intl
20h 07m
2 stops
SAN4:12 pmSan Diego
$772

United Airlines flights from California to Bucharest Otopeni Intl Airport

Our best United Airlines deals on California to Bucharest Otopeni Intl Airport flight tickets
United Airlines
Aug 16
ONT9:01 amOntario
21h 29m
2 stops
OTP4:30 pmBucharest Otopeni Intl
Aug 26
OTP6:05 amBucharest Otopeni Intl
23h 56m
2 stops
ONT8:01 pmOntario
$732
United Airlines
Aug 26
ONT1:18 pmOntario
19h 17m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Sep 2
OTP6:05 amBucharest Otopeni Intl
22h 11m
2 stops
ONT6:16 pmOntario
$743
United Airlines
Aug 26
SNA11:10 amSanta Ana J. Wayne/Orange Cnty
21h 25m
2 stops
OTP6:35 pmBucharest Otopeni Intl
Sep 2
OTP6:05 amBucharest Otopeni Intl
24h 14m
2 stops
SNA8:19 pmSanta Ana J. Wayne/Orange Cnty
$751

momondo Fare Finder

 
Customize your flight search to find flights from California to Bucharest Otopeni Intl Airport 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, momondo users made 832,500 searches. Data last updated July 14, 2026.
Use the filters below to find and compare flights from California to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sat 10/31

1:17 pm-11:15 pm

2 stops48h 58m

Bucharest Otopeni Intl

Tue 11/17

2:00 pm-11:16 am

2 stops55h 16m

$719

BurbankBucharest

BUR - OTP

BUROTP

Burbank Bob Hope

Sun 10/18

7:00 am-3:25 pm

2 stops22h 25m

Bucharest Otopeni Intl

Tue 11/3

6:00 pm-4:06 pm

2 stops32h 06m

$722

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 11/3

12:18 pm-3:50 pm

2 stops17h 32m

Bucharest Otopeni Intl

Wed 11/18

6:05 am-4:12 pm

2 stops20h 07m

$725

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 8/16

9:01 am-4:30 pm

2 stops21h 29m

Bucharest Otopeni Intl

Wed 8/26

6:05 am-8:01 pm

2 stops23h 56m

$732

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 8/26

1:18 pm-6:35 pm

2 stops19h 17m

Bucharest Otopeni Intl

Wed 9/2

6:05 am-6:16 pm

2 stops22h 11m

$743
Quickest round-trip

San DiegoBucharest

SAN - OTP

SANOTP

San Diego

Wed 10/21

5:15 pm-6:35 pm

1 stop15h 20m

Bucharest Otopeni Intl

Tue 11/3

6:05 am-3:45 pm

1 stop19h 40m

$748

San DiegoBucharest

SAN - OTP

SANOTP

San Diego

Wed 10/21

5:15 pm-6:35 pm

1 stop15h 20m

Bucharest Otopeni Intl

Tue 11/3

6:05 am-3:45 pm

1 stop19h 40m

$749

San DiegoBucharest

SAN - OTP

SANOTP

San Diego

Wed 10/21

5:15 pm-6:35 pm

1 stop15h 20m

Bucharest Otopeni Intl

Tue 11/3

6:05 am-5:59 pm

2 stops21h 54m

$750

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 10/28

10:25 am-3:45 pm

2 stops20h 20m

Bucharest Otopeni Intl

Wed 11/4

8:25 am-10:23 pm

2 stops23h 58m

$759

OaklandBucharest

OAK - OTP

OAKOTP

Oakland

Mon 8/10

6:00 am-3:50 pm

2 stops23h 50m

Bucharest Otopeni Intl

Wed 8/19

3:40 pm-4:14 pm

2 stops34h 34m

$1,004

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bucharest from

How to get the cheapest flight ticket from California to Bucharest Otopeni Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Bucharest Otopeni Intl Airport?

If you aren’t able to travel during the month of November, then book flights to Bucharest Otopeni Intl Airport from California during September instead. Flights to Bucharest Otopeni Intl Airport in September, while not as cheap as those in November, still average around $424.

How far in advance should I book a flight from California to Bucharest Otopeni Intl Airport?

You are more likely to see cheaper flights to Bucharest Otopeni Intl Airport from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Bucharest Otopeni Intl Airport for around $769 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bucharest Otopeni Intl Airport from California for as low as $724 on momondo.

Can stopping save me money on California to Bucharest Otopeni Intl Airport flights?

You could potentially save up to 24% on your flight if you consider stops on a California to Bucharest Otopeni Intl Airport flight.

Cheap California to Bucharest Otopeni Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from California to Bucharest Otopeni Intl Airport

Fastest flight time

14h 30m

Direct flights

None
The fastest flight from California to Bucharest Otopeni Intl Airport takes 14h 30m
There are no direct flights from California to Bucharest Otopeni Intl Airport. There are no popular flight routes from California to Bucharest Otopeni Intl Airport.
Search flight deals

Frequently asked questions about flying from California to Bucharest Otopeni Intl Airport

  • When did momondo last update prices for flights from California to Bucharest Otopeni Intl Airport?

    Prices for flights from California to Bucharest Otopeni Intl Airport refresh daily.

  • How many operators does momondo search for flights from California to Bucharest Otopeni Intl Airport?

  • How old do you have to be to fly from California to Bucharest Otopeni Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Bucharest Otopeni Intl Airport.

  • What documentation or ID do you need to fly to Bucharest Otopeni Intl Airport?

    The necessary travel and health documents for your Bucharest Otopeni Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from California to Bucharest Otopeni Intl Airport

Compare and see reviews for airlines that fly from California to Bucharest Otopeni Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
LOTPriceFrom $475Free CancellationRating
7.5
1,210 reviews
Search LOT flights
KLMPriceFrom $489Free CancellationRating
7.8
1,538 reviews
Search KLM flights
SWISSPriceFrom $490Free CancellationRating
7.5
2,004 reviews
Search SWISS flights
DeltaPriceFrom $491Free CancellationRating
7.8
8,467 reviews
Search Delta flights
LufthansaPriceFrom $491Free CancellationRating
6.8
8,134 reviews
Search Lufthansa flights
United AirlinesPriceFrom $501Free CancellationRating
7.4
9,987 reviews
Search United Airlines flights
British AirwaysPriceFrom $501Free CancellationRating
6.7
8,113 reviews
Search British Airways flights
Air FrancePriceFrom $570Free CancellationRating
7.5
1,627 reviews
Search Air France flights
Austrian AirlinesPriceFrom $580Free CancellationRating
7.6
943 reviews
Search Austrian Airlines flights
Turkish AirlinesPriceFrom $592Free CancellationRating
7.4
4,444 reviews
Search Turkish Airlines flights

Traveling to a place near Bucharest?

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

Why use momondo?

Why should I use momondo to find a flight deal from California to Bucharest?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to Bucharest. momondo saves you time and could save you money on your trip.

Can I find flights from California to Bucharest with flexible booking policies on momondo?

Yes. All flights to Bucharest from California on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from California to Bucharest?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bucharest from California.

I’m not ready to book a flight from California to Bucharest right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Bucharest from California. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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