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$844+ Cheap flights from Otopeni Intl (OTP) to Colorado

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — DEN
Dec 23 — Dec 301
Tue 12/23
Tue 12/30
1 adult, Economy
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Cheap flight deals from Otopeni Intl to Colorado

Keep the following information in mind while searching for Otopeni Intl to Colorado flight deals. Data was last updated November 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$803
(Bravofly)

Popular in

December

Cheapest in

March

Average price

$751
Provider with most accurate pricing for Bucharest (BUH)-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Bucharest (BUH)-Denver Intl flights.
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From Bucharest Otopeni Intl to Colorado
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Highest demand for flights based on searches. 1% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Otopeni Intl to Colorado

Cheapest flights from Otopeni Intl to Colorado
Explore the most affordable flight options available from Otopeni Intl to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 23, 2025.

This Mytrip deal was found by Cheapflights users on 11/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:10 pmOTP - DEN
3 stops35h 55mMultiple Airlines
Tue 12/93:40 pmDEN - OTP
2 stops24h 05mMultiple Airlines
Deal found 11/23$846
This Delta deal was found by Cheapflights users on 11/21. 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.
Tue 12/26:05 amOTP - DEN
2 stops25h 48mDelta
Mon 12/83:26 pmDEN - OTP
2 stops22h 24mDelta
Deal found 11/21$859
This flugladen.de deal was found by Cheapflights users on 11/23. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:05 amOTP - DEN
1 stop16h 35mLufthansa
Tue 12/98:20 pmDEN - OTP
1 stop19h 45mLufthansa
Deal found 11/23$889
This Cheapflightsfares deal was found by Cheapflights users on 11/21. 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 12/25:55 amOTP - DEN
2 stops19h 35mLufthansa
Mon 12/88:20 pmDEN - OTP
1 stop19h 45mLufthansa
Deal found 11/21$911
This SWISS deal was found by Cheapflights users on 11/23. 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.
Wed 12/36:30 amOTP - DEN
2 stops22h 34mSWISS
Tue 12/95:35 pmDEN - OTP
2 stops21h 55mSWISS
Deal found 11/23$937
This Trip.com deal was found by Cheapflights users on 11/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:00 amOTP - DEN
2 stops20h 51mKLM
Sat 12/612:25 pmDEN - OTP
2 stops18h 00mKLM
Deal found 11/21$958
This Priceline deal was found by Cheapflights users on 11/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/24:40 pmOTP - DEN
1 stop31h 50mBritish Airways
Mon 12/85:25 pmDEN - OTP
1 stop20h 35mBritish Airways
Deal found 11/21$1,035
This Delta deal was found by Cheapflights users on 11/21. 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.
Sat 12/276:00 amOTP - DEN
2 stops25h 17mDelta
Fri 1/96:30 amDEN - OTP
2 stops22h 20mDelta
Deal found 11/21$1,099
This United Airlines deal was found by Cheapflights users on 11/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:50 pmOTP - DEN
1 stop34h 10mUnited Airlines
Fri 1/911:15 amDEN - OTP
2 stops17h 55mUnited Airlines
Deal found 11/22$1,198

Cheapflights Fare Finder

 
Customize your flight search to find flights from Otopeni Intl to Colorado 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 November 23, 2025.
Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Colorado that are best for you.

Fly from

Otopeni Intl

Fly to

Colorado

Route

Depart

Return

Price

BucharestDenver

OTP - DEN

OTPDEN

Bucharest Otopeni Intl

Wed 4/29

6:05 am-7:55 pm

2 stops22h 50m

Denver Intl

Wed 5/6

10:25 am-11:55 am

2 stops16h 30m

$844

BucharestDenver

OTP - DEN

OTPDEN

Bucharest Otopeni Intl

Mon 4/27

5:55 am-1:35 pm

1 stop16h 40m

Denver Intl

Wed 5/6

4:15 pm-6:35 pm

2 stops17h 20m

$844

BucharestDenver

OTP - DEN

OTPDEN

Bucharest Otopeni Intl

Mon 4/27

5:55 am-1:35 pm

1 stop16h 40m

Denver Intl

Thu 5/7

8:20 pm-1:00 am

1 stop19h 40m

$844

BucharestDenver

OTP - DEN

OTPDEN

Bucharest Otopeni Intl

Sun 4/26

6:05 am-1:35 pm

1 stop16h 30m

Denver Intl

Mon 5/4

8:20 pm-1:00 am

1 stop19h 40m

$844

BucharestDenver

OTP - DEN

OTPDEN

Bucharest Otopeni Intl

Sun 4/26

6:05 am-1:35 pm

1 stop16h 30m

Denver Intl

Tue 5/5

9:30 am-11:55 am

2 stops17h 25m

$844

BucharestDenver

OTP - DEN

OTPDEN

Bucharest Otopeni Intl

Sun 4/26

6:05 am-1:35 pm

1 stop16h 30m

Denver Intl

Wed 5/6

10:25 am-11:55 am

2 stops16h 30m

$844

BucharestDenver

OTP - DEN

OTPDEN

Bucharest Otopeni Intl

Mon 4/27

5:55 am-1:35 pm

1 stop16h 40m

Denver Intl

Tue 5/5

7:45 am-11:55 am

2 stops19h 10m

$844

BucharestDenver

OTP - DEN

OTPDEN

Bucharest Otopeni Intl

Mon 4/27

5:55 am-1:35 pm

1 stop16h 40m

Denver Intl

Fri 5/8

8:20 pm-6:35 pm

1 stop13h 15m

$844

BucharestDenver

OTP - DEN

OTPDEN

Bucharest Otopeni Intl

Sat 1/31

5:55 am-1:40 pm

1 stop16h 45m

Denver Intl

Tue 2/17

3:55 pm-1:55 pm

1 stop13h 00m

$845

BucharestDenver

OTP - DEN

OTPDEN

Bucharest Otopeni Intl

Tue 2/3

5:55 am-1:40 pm

1 stop16h 45m

Denver Intl

Mon 2/16

11:59 pm-1:55 pm

2 stops28h 56m

$845

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 13 results
1
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Best time to book a flight from Otopeni Intl to Colorado

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

How much does it cost to fly round-trip from Bucharest Otopeni Intl Airport to Colorado?

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated November 23, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and British Airways from Bucharest Otopeni Intl Airport to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,999 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
7,999 reviews
Delta
7.9
Good
7,999 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,034 reviews
Delta
7.9
Good
7,999 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,535 reviews
Delta
7.9
Good
7,999 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

    A quick flight from Bucharest Otopeni Intl Airport to Colorado can take about 22h 50m. United Airlines provides one of the quickest options available for as low as $844. Airlines will cover a distance of 5847 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Otopeni Intl to Colorado by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Alternative routes for Otopeni Intl to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Otopeni Intl to Colorado

Discover the top 3 airlines that operate flights from Otopeni Intl to Colorado. 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 November 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$666Average$814FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$816Average$910FlexibilityNo cancel feeOn-time69%
DeltaCheapest$817Average$1,058FlexibilityNo cancel feeOn-timeN/A

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