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Otopeni Intl

$279+ Cheap flights from Colorado 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — OTP
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Cheap flight deals from Colorado to Otopeni Intl

Keep the following information in mind while searching for Colorado to Otopeni Intl flight deals. Data was last updated October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$543
(Kiwi.com)

One-way from

$279
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$638
Provider with most accurate pricing for Denver Intl-Bucharest (BUH) flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Bucharest (BUH) flights.
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From Colorado to Bucharest Otopeni Intl
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One-way flight from Colorado to Bucharest Otopeni Intl
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Highest demand for flights based on searches. 27% potential increase in price ($297 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($43 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 Colorado to Otopeni Intl

Cheapest flights from Colorado to Otopeni Intl
Explore the most affordable flight options available from Colorado to Otopeni Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/114:20 pmDEN - OTP
1 stop17h 15mLufthansa
Tue 11/186:05 amOTP - DEN
1 stop17h 30mLufthansa
Deal found 10/12$543
This Expedia deal was found by Cheapflights users on 10/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/114:20 pmDEN - OTP
1 stop17h 15mMultiple Airlines
Tue 11/185:55 amOTP - DEN
2 stops23h 00mMultiple Airlines
Deal found 10/12$582
This Cheapflightsfares deal was found by Cheapflights users on 10/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/184:20 pmDEN - OTP
1 stop17h 15mLufthansa
Thu 12/182:45 pmOTP - DEN
2 stops17h 53mLufthansa
Deal found 10/13$586
This Air Canada deal was found by Cheapflights users on 10/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:25 pmDEN - OTP
2 stops17h 20mAir Canada
Tue 11/185:55 amOTP - DEN
2 stops35h 58mAir Canada
Deal found 10/12$591
This Gotogate deal was found by Cheapflights users on 10/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/284:20 pmDEN - OTP
1 stop17h 15mMultiple Airlines
Fri 12/55:55 amOTP - DEN
2 stops20h 49mMultiple Airlines
Deal found 10/14$613
This Booking.com deal was found by Cheapflights users on 10/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/284:20 pmDEN - OTP
1 stop17h 15mLufthansa
Fri 12/56:05 amOTP - DEN
1 stop17h 30mLufthansa
Deal found 10/14$630
This Gotogate deal was found by Cheapflights users on 10/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:25 pmDEN - OTP
1 stop20h 30mBritish Airways
Thu 12/184:35 pmOTP - DEN
1 stop31h 55mBritish Airways
Deal found 10/13$636
This Cheapflightsfares deal was found by Cheapflights users on 10/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:45 pmDEN - OTP
1 stop15h 55mLufthansa
Fri 11/76:05 amOTP - DEN
1 stop17h 30mLufthansa
Deal found 10/14$638

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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 October 14, 2025.
Use the filters below to find and compare flights from Colorado to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Colorado

Fly to

Otopeni Intl

Route

Depart

Return

Price

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Tue 11/11

1:25 pm-3:45 pm

2 stops17h 20m

Bucharest Otopeni Intl

Tue 11/18

5:55 am-8:53 am

2 stops35h 58m

$591

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Fri 11/28

4:20 pm-6:35 pm

1 stop17h 15m

Bucharest Otopeni Intl

Fri 12/5

5:55 am-5:44 pm

2 stops20h 49m

$613

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Fri 11/28

4:20 pm-6:35 pm

1 stop17h 15m

Bucharest Otopeni Intl

Fri 12/5

6:05 am-2:35 pm

1 stop17h 30m

$630

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Thu 4/2

4:15 pm-6:35 pm

1 stop17h 20m

Bucharest Otopeni Intl

Mon 4/6

12:40 pm-1:45 pm

1 stop34h 05m

$637

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Wed 10/29

6:45 pm-6:40 pm

1 stop15h 55m

Bucharest Otopeni Intl

Fri 11/7

6:05 am-2:35 pm

1 stop17h 30m

$638

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Thu 4/2

8:20 pm-1:00 am

1 stop19h 40m

Bucharest Otopeni Intl

Mon 4/6

1:50 pm-11:18 pm

2 stops18h 28m

$694

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Thu 4/2

11:35 am-4:50 pm

2 stops20h 15m

Bucharest Otopeni Intl

Mon 4/6

6:30 am-7:55 pm

2 stops22h 25m

$706

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Fri 11/14

12:16 am-12:30 pm

3 stops51h 14m

$279

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Sat 11/15

4:20 pm-6:35 pm

1 stop17h 15m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/13

Best time to book a flight from Colorado to Otopeni Intl

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

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

Currently, April is the cheapest month in which you can book a flight from Colorado to Bucharest Otopeni Intl Airport (average of $508). Flying from Colorado to Bucharest Otopeni Intl Airport in February is currently the most expensive (average of $1,137). 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 CO to OTP?

Find hourly flight availability from Colorado 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 October 14, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 66% on flights from Colorado to Bucharest Otopeni Intl Airport by exploring options for tickets in the evening.

Related info for your journey

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

    There are many flights that can get you from Colorado to Bucharest Otopeni Intl Airport in 17h 15m. Fly via Air Canada or Lufthansa to get the fastest option. There are 5847 mi between Colorado and Bucharest Otopeni Intl Airport. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Colorado to Bucharest Otopeni Intl Airport (average of $508). Flying from Colorado to Bucharest Otopeni Intl Airport in February is currently the most expensive (average of $1,137). 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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Alternative routes for Colorado to Otopeni Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Colorado to Otopeni Intl

Discover the top 4 airlines that operate flights from Colorado 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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$534Average$890FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$552Average$830FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$621Average$887FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$676Average$1,122FlexibilityNo cancel feeOn-time76%

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