HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bucharest

$232+ Cheap flights from Irvine, CA to Bucharest (BUH)

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BUH
Jul 30 — Aug 61
Wed 7/30
Wed 8/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Irvine to Bucharest with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Irvine to Bucharest are usually found in October or March, booked 71 days in advance, depart on a Sunday or Tuesday and return on a Wednesday

Cheap flight deals from Irvine to Bucharest

Keep the following information in mind while searching for Irvine to Bucharest flight deals. Data was last updated July 25, 2025.

Round-trip from

$571
(United Airlines)

One-way from

$232
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$805
From Irvine to Bucharest (BUH)
Search Deals
One-way flight from Irvine to Bucharest (BUH)
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Irvine to Bucharest

Cheapest flights from Irvine to Bucharest
Explore the most affordable flight options available from Irvine to Bucharest. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

This United Airlines deal was found by Cheapflights users on 7/24. 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.
Wed 8/2711:00 amLAX - OTP
2 stops21h 35mUnited Airlines
Tue 9/236:00 amOTP - LAX
2 stops19h 34mUnited Airlines
Deal found 7/24$571
This Austrian Airlines deal was found by Cheapflights users on 7/24. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/33:05 pmLAX - OTP
1 stop14h 15mAustrian Airlines
Mon 9/224:05 pmOTP - LAX
1 stop31h 00mAustrian Airlines
Deal found 7/24$573
This Orbitz deal was found by Cheapflights users on 7/24. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:35 pmLAX - OTP
1 stop33h 45mMultiple Airlines
Mon 9/221:55 pmOTP - LAX
2 stops36h 13mMultiple Airlines
Deal found 7/24$574
This FlightHub deal was found by Cheapflights users on 7/23. 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.
Wed 9/1012:10 amLAX - OTP
1 stop22h 00mTurkish Airlines
Thu 9/259:45 pmOTP - LAX
1 stop34h 40mTurkish Airlines
Deal found 7/23$575
This oojo deal was found by Cheapflights users on 7/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3110:05 pmLAX - OTP
1 stop15h 05mLOT
Mon 9/226:30 pmOTP - LAX
1 stop35h 35mLOT
Deal found 7/22$577
This Travelocity deal was found by Cheapflights users on 7/22. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:05 amLAX - OTP
2 stops22h 45mAir Canada
Mon 9/221:55 pmOTP - LAX
2 stops36h 13mAir Canada
Deal found 7/22$579
This Lufthansa deal was found by Cheapflights users on 7/24. 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.
Mon 9/12:55 pmLAX - OTP
2 stops22h 35mLufthansa
Mon 9/226:40 pmOTP - LAX
1 stop28h 20mLufthansa
Deal found 7/24$585
This Ovago deal was found by Cheapflights users on 7/24. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/219:00 pmLAX - OTP
1 stop32h 05mBritish Airways
Fri 12/58:00 amOTP - LAX
1 stop22h 25mBritish Airways
Deal found 7/24$589
This Delta deal was found by Cheapflights users on 7/24. 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.
Sun 8/3111:20 pmLAX - OTP
2 stops27h 40mDelta
Fri 9/266:30 amOTP - LAX
1 stop25h 25mDelta
Deal found 7/24$592
This SWISS deal was found by Cheapflights users on 7/23. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:35 pmLAX - OTP
1 stop19h 30mSWISS
Mon 9/224:10 pmOTP - LAX
1 stop34h 20mSWISS
Deal found 7/23$611

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine to Bucharest 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 July 25, 2025.
Use the filters below to find and compare flights from Irvine to Bucharest that are best for you.

Fly from

Irvine

Fly to

Bucharest

Route

Depart

Return

Price

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Wed 8/27

11:00 am-6:35 pm

2 stops21h 35m

Bucharest Otopeni Intl

Tue 9/23

6:00 am-3:34 pm

2 stops19h 34m

$571

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Wed 9/3

3:05 pm-3:20 pm

1 stop14h 15m

Bucharest Otopeni Intl

Mon 9/22

4:05 pm-1:05 pm

1 stop31h 00m

$573

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Wed 9/3

7:35 pm-3:20 pm

1 stop33h 45m

Bucharest Otopeni Intl

Mon 9/22

1:55 pm-4:08 pm

2 stops36h 13m

$574

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Wed 9/10

12:10 am-8:10 am

1 stop22h 00m

Bucharest Otopeni Intl

Thu 9/25

9:45 pm-10:25 pm

1 stop34h 40m

$575

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Sun 8/31

10:05 pm-11:10 pm

1 stop15h 05m

Bucharest Otopeni Intl

Mon 9/22

6:30 pm-8:05 pm

1 stop35h 35m

$577

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Wed 9/3

8:05 am-4:50 pm

2 stops22h 45m

Bucharest Otopeni Intl

Mon 9/22

1:55 pm-4:08 pm

2 stops36h 13m

$579

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Mon 9/1

2:55 pm-11:30 pm

2 stops22h 35m

Bucharest Otopeni Intl

Mon 9/22

6:40 pm-1:00 pm

1 stop28h 20m

$585

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Fri 11/21

9:00 pm-3:05 pm

1 stop32h 05m

Bucharest Otopeni Intl

Fri 12/5

8:00 am-8:25 pm

1 stop22h 25m

$589

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Sun 8/31

11:20 pm-1:00 pm

2 stops27h 40m

Bucharest Otopeni Intl

Wed 9/17

6:30 am-4:05 pm

1 stop19h 35m

$592

Los AngelesBucharest

LAX - OTP

LAXOTP

Los Angeles

Thu 9/4

7:35 pm-1:05 am

1 stop19h 30m

Bucharest Otopeni Intl

Mon 9/22

4:10 pm-4:30 pm

1 stop34h 20m

$611

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 18 results
1
2

Best time to book a flight from Irvine to Bucharest

Have a flexible travel schedule? Discover the best time to fly to Bucharest from Irvine 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 Irvine to Bucharest

How far ahead should I book a flight from Irvine to Bucharest?

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Bucharest. Price data was last updated on July 18, 2025.

The price you pay for your flight from Irvine to Bucharest may vary depending on when you book. For the best chance of a lower fare, look to book 70 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 Irvine to Bucharest?

Currently, November is the cheapest month in which you can book a flight from Irvine to Bucharest (average of $604). Flying from Irvine to Bucharest in June is currently the most expensive (average of $1,133). 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 IR9 to BUH?

Find hourly flight availability from Irvine to Bucharest. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2025.

When flying from Irvine to Bucharest, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Irvine to Bucharest?

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

Travelers seeking maximum savings on their Irvine to Bucharest flight should consider departing on Monday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Irvine to Bucharest?

Reviews of airlines servicing Bucharest

Get insights into the airlines that provide service to Bucharest. 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 Bucharest. Reviews last updated July 25, 2025.
Get a feel of what it's like to fly with Delta, LOT, and Austrian Airlines from Irvine to Bucharest by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,967 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,967 reviews
Delta
8.0
Very good
7,967 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LOT
7.6
Good
1,103 reviews
Delta
8.0
Very good
7,967 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
820 reviews
Delta
8.0
Very good
7,967 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,462 reviews
Delta
8.0
Very good
7,967 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,676 reviews
Delta
8.0
Very good
7,967 reviews

Entertainment

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Bucharest. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Irvine to Bucharest one-way?

    The cheapest airline one-way is Lufthansa, with whom users have recently found tickets for as low as $388. However, be on the lookout for offers from United Airlines and SWISS, as they are both options that can get you from Irvine to Bucharest for a low price.

  • Can I find deals for flights from Irvine to Bucharest that include hotel bookings?

    Yes. In addition to deals on Irvine to Bucharest flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Bucharest?

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

  • Can I find deals for business class flights from Irvine to Bucharest?

    Yes. Cheapflights offers flight deals from Irvine to Bucharest 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 Irvine to Bucharest?

    Currently, November is the cheapest month in which you can book a flight from Irvine to Bucharest (average of $604). Flying from Irvine to Bucharest in June is currently the most expensive (average of $1,133). 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?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Irvine to Bucharest

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Otopeni Intl flights
San Francisco to Otopeni Intl flights
Ontario to Otopeni Intl flights
Las Vegas to Otopeni Intl flights
Santa Ana to Otopeni Intl flights
Los Angeles to Cluj Napoca flights
San Francisco to Cluj Napoca flights
San Diego to Otopeni Intl flights
Los Angeles to Sibiu flights
Burbank to Otopeni Intl flights
Long Beach to Otopeni Intl flights
Ontario to Cluj Napoca flights
Los Angeles to Timisoara flights
San Francisco to Iaşi flights
Los Angeles to Iaşi flights
San Francisco to Sibiu flights
San Jose to Otopeni Intl flights
San Jose to Sibiu flights
Sacramento to Cluj Napoca flights
San Francisco to Timisoara flights
Sacramento to Otopeni Intl flights
Sacramento to Sibiu flights
Reno to Cluj Napoca flights
Oakland to Otopeni Intl flights
Oakland to Iaşi flights
Santa Rosa to Cluj Napoca flights
San Jose to Cluj Napoca flights
Sacramento to Timisoara flights
Santa Ana to Cluj Napoca flights
San Jose to Iaşi flights
Burbank to Cluj Napoca flights
Monterey to Otopeni Intl flights
Oakland to Bacău flights
Oakland to Cluj Napoca flights
San Francisco to Satu Mare flights
San Diego to Timisoara flights
San Francisco to Bacău flights
San Francisco to Constanţa flights

Top 10 airlines flying from Irvine to Bucharest

Discover the top 10 airlines that operate flights from Irvine to Bucharest. 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 July 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$442Average$732FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$481Average$646FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$486Average$668FlexibilityNo cancel feeOn-time71%
SWISSCheapest$494Average$625FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$505Average$715FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$527Average$830FlexibilityNo cancel feeOn-time69%
KLMCheapest$538Average$824FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$555Average$777FlexibilityNo cancel feeOn-time78%
Air FranceCheapest$568Average$808FlexibilityNo cancel feeOn-time77%
DeltaCheapest$569Average$1,006FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.