HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Otopeni Intl

$559+ Cheap flights from Houston to Otopeni Intl (OTP)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — OTP
Jan 24 — Jan 311
Sat 1/24
Sat 1/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston to Otopeni Intl 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.

Cheap flight deals from Houston to Otopeni Intl

Cheapest flights from Houston to Otopeni Intl
Explore the most affordable flight options available from Houston to Otopeni Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 25, 2025.

This oojo deal was found by Cheapflights users on 12/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:55 pmIAH - OTP
2 stops15h 55mSWISS
Thu 1/84:40 pmOTP - IAH
2 stops30h 00mSWISS
Deal found 12/23$742
This Travelocity deal was found by Cheapflights users on 12/23. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:50 pmIAH - OTP
1 stop17h 45mLufthansa
Thu 1/87:20 pmOTP - IAH
2 stops27h 20mLufthansa
Deal found 12/23$748
This United Airlines deal was found by Cheapflights users on 12/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:55 pmIAH - OTP
1 stop21h 00mUnited Airlines
Wed 1/72:40 pmOTP - IAH
2 stops35h 54mUnited Airlines
Deal found 12/23$801
This United Airlines deal was found by Cheapflights users on 12/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:55 pmIAH - OTP
2 stops44h 00mUnited Airlines
Wed 1/72:40 pmOTP - IAH
2 stops35h 54mUnited Airlines
Deal found 12/23$812
This United Airlines deal was found by Cheapflights users on 12/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:50 pmIAH - OTP
1 stop17h 45mUnited Airlines
Wed 1/72:40 pmOTP - IAH
2 stops36h 30mUnited Airlines
Deal found 12/23$830
This KAYAK deal was found by Cheapflights users on 12/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/278:30 pmIAH - OTP
2 stops33h 35mLufthansa
Wed 1/72:40 pmOTP - IAH
2 stops34h 10mLufthansa
Deal found 12/23$836
This United Airlines deal was found by Cheapflights users on 12/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:35 pmIAH - OTP
2 stops37h 00mUnited Airlines
Wed 1/72:40 pmOTP - IAH
2 stops35h 54mUnited Airlines
Deal found 12/23$841
This KLM deal was found by Cheapflights users on 12/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:30 pmIAH - OTP
1 stop25h 00mMultiple Airlines
Thu 1/81:05 pmOTP - IAH
1 stop32h 50mMultiple Airlines
Deal found 12/23$1,009
This KAYAK deal was found by Cheapflights users on 12/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:20 pmIAH - OTP
2 stops32h 45mAustrian Airlines
Tue 1/66:55 amOTP - IAH
2 stops41h 55mAustrian Airlines
Deal found 12/23$1,065

Find flight deals from Houston to Otopeni Intl

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Otopeni Intl (OTP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 25, 2025.

Round-trip from

$559
(oojo)

Popular in

May

Cheapest in

March

Average price

$1,084
From Houston to Bucharest Otopeni Intl
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($177 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 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 Houston 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 25, 2025.
Use the filters below to find and compare flights from Houston to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Houston

Fly to

Otopeni Intl

Route

Depart

Return

Price

HoustonBucharest

IAH - OTP

IAHOTP

Houston George Bush Intcntl

Fri 5/1

3:30 pm-7:05 pm

1 stop19h 35m

Bucharest Otopeni Intl

Fri 5/8

8:25 am-7:15 pm

1 stop18h 50m

$559

HoustonBucharest

HOU - OTP

HOUOTP

Houston Hobby

Thu 3/26

12:18 pm-7:30 pm

2 stops24h 12m

Bucharest Otopeni Intl

Tue 3/31

8:25 am-7:50 pm

2 stops19h 25m

$583

HoustonBucharest

IAH - OTP

IAHOTP

Houston George Bush Intcntl

Fri 5/1

6:26 pm-7:05 pm

2 stops16h 39m

Bucharest Otopeni Intl

Fri 5/8

8:25 am-7:15 pm

1 stop18h 50m

$589

HoustonBucharest

IAH - OTP

IAHOTP

Houston George Bush Intcntl

Fri 5/1

9:05 pm-8:15 pm

1 stop15h 10m

Bucharest Otopeni Intl

Fri 5/8

9:30 am-7:10 pm

1 stop17h 40m

$632

HoustonBucharest

IAH - OTP

IAHOTP

Houston George Bush Intcntl

Sun 1/25

8:00 am-7:35 pm

2 stops27h 35m

Bucharest Otopeni Intl

Sat 2/14

4:00 pm-10:26 pm

2 stops38h 26m

$642

HoustonBucharest

IAH - OTP

IAHOTP

Houston George Bush Intcntl

Thu 3/19

4:50 pm-7:30 pm

1 stop19h 40m

Bucharest Otopeni Intl

Mon 3/23

4:00 pm-3:05 pm

1 stop30h 05m

$644

HoustonBucharest

HOU - OTP

HOUOTP

Houston Hobby

Sun 1/25

5:45 am-12:05 pm

2 stops22h 20m

Bucharest Otopeni Intl

Mon 2/9

6:00 am-10:33 pm

2 stops24h 33m

$656

HoustonBucharest

IAH - OTP

IAHOTP

Houston George Bush Intcntl

Mon 1/12

3:50 pm-3:30 pm

1 stop15h 40m

Bucharest Otopeni Intl

Wed 5/6

8:25 am-7:15 pm

1 stop18h 50m

$659

HoustonBucharest

IAH - OTP

IAHOTP

Houston George Bush Intcntl

Sun 1/11

3:50 pm-7:35 pm

1 stop19h 45m

Bucharest Otopeni Intl

Wed 5/20

8:25 am-7:15 pm

1 stop18h 50m

$679

HoustonBucharest

HOU - OTP

HOUOTP

Houston Hobby

Wed 1/14

6:36 pm-8:05 pm

2 stops17h 29m

Bucharest Otopeni Intl

Sat 1/24

8:05 am-10:46 pm

2 stops22h 41m

$733

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 15 results
1
2

Best time to book a flight from Houston to Otopeni Intl

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

What is the cheapest month to book a flight from Houston to Bucharest Otopeni Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Houston to Bucharest Otopeni Intl Airport (average of $539). Flying from Houston to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $940). 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 HOU to OTP?

Find hourly flight availability from Houston 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 25, 2025.

One of the essential ways to save on airfare from Houston to Bucharest Otopeni Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 34% on airfare.

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 25, 2025.
Peruse reviews from past customers who have flown with KLM, Air France, and United Airlines from Houston to Bucharest Otopeni Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,434 reviews

Boarding

7.7

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,434 reviews
KLM
7.7
Good
1,434 reviews

Boarding

7.7

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Air France
7.4
Good
1,513 reviews
KLM
7.7
Good
1,434 reviews

Boarding

7.7

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
United Airlines
7.4
Good
9,115 reviews
KLM
7.7
Good
1,434 reviews

Boarding

7.7

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Turkish Airlines
7.3
Good
4,113 reviews
KLM
7.7
Good
1,434 reviews

Boarding

7.7

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Lufthansa
6.8
Okay
7,653 reviews
KLM
7.7
Good
1,434 reviews

Boarding

7.7

Comfort

7.6

Food

7.2

Entertainment

7.1

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

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

    British Airways, Turkish Airlines, and Delta can get you from Houston to Bucharest Otopeni Intl Airport in just under 15h 10m. Your travel time can differ by up to 7h 10m. Airlines will cover a distance of 6100 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Houston to Bucharest Otopeni Intl Airport round-trip?

    Cheapflights users have booked flights from Houston to Bucharest Otopeni Intl Airport round-trip from $551. Other airlines that can offer you cheap pricing are Turkish Airlines, from $591, and KLM, from $645. Lufthansa is 36% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Houston to Bucharest Otopeni Intl Airport (average of $539). Flying from Houston to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $940). 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

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

Top 5 airlines flying from Houston to Otopeni Intl

Discover the top 5 airlines that operate flights from Houston 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 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$551Average$1,081FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$591Average$992FlexibilityNo cancel feeOn-time77%
KLMCheapest$645Average$879FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$669Average$928FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$715Average$1,032FlexibilityNo cancel feeOn-time77%

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.