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Otopeni Intl

$267+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — OTP
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This KAYAK deal was found by Cheapflights users on 1/25. 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.
Sun 4/266:40 pm
DEN
-
OTP
1 stop21h 10m
British Airways
Wed 5/68:15 am
OTP
-
DEN
1 stop17h 15m
British Airways
Deal found 1/25$525
This Air Canada deal was found by Cheapflights users on 1/25. 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.
Sat 4/256:05 pm
DEN
-
OTP
2 stops32h 55m
Air Canada
Tue 5/56:05 am
OTP
-
DEN
2 stops21h 07m
Air Canada
Deal found 1/25$541
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Sun 4/268:25 pm
DEN
-
OTP
1 stop19h 45m
United Airlines
Thu 4/306:05 am
OTP
-
DEN
2 stops27h 39m
United Airlines
Deal found 1/25$543
This Air Canada deal was found by Cheapflights users on 1/25. 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.
Sat 4/254:13 pm
DEN
-
OTP
2 stops34h 47m
Air Canada
Thu 4/306:05 am
OTP
-
DEN
2 stops22h 50m
Air Canada
Deal found 1/25$544
This KAYAK deal was found by Cheapflights users on 1/25. 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 4/294:21 pm
DEN
-
OTP
2 stops23h 49m
Lufthansa
Wed 5/66:05 am
OTP
-
DEN
1 stop18h 35m
Lufthansa
Deal found 1/25$547
This United Airlines deal was found by Cheapflights users on 1/25. 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 4/2811:05 am
DEN
-
OTP
2 stops20h 15m
United Airlines
Thu 4/306:05 am
OTP
-
DEN
1 stop18h 35m
United Airlines
Deal found 1/25$548
This Air Canada deal was found by Cheapflights users on 1/25. 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.
Sat 4/254:13 pm
DEN
-
OTP
2 stops34h 47m
Air Canada
Fri 5/16:05 am
OTP
-
DEN
2 stops47h 23m
Air Canada
Deal found 1/25$549
This United Airlines deal was found by Cheapflights users on 1/25. 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 4/297:45 am
DEN
-
OTP
2 stops20h 05m
United Airlines
Fri 5/16:15 am
OTP
-
DEN
1 stop17h 05m
United Airlines
Deal found 1/25$551
This Air Canada deal was found by Cheapflights users on 1/25. 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.
Sun 4/2611:05 am
DEN
-
OTP
2 stops17h 00m
Air Canada
Thu 4/306:05 am
OTP
-
DEN
2 stops22h 50m
Air Canada
Deal found 1/25$552
This Air Canada deal was found by Cheapflights users on 1/25. 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 4/2811:05 am
DEN
-
OTP
2 stops20h 15m
Air Canada
Fri 5/16:05 am
OTP
-
DEN
2 stops23h 23m
Air Canada
Deal found 1/25$556
This KAYAK deal was found by Cheapflights users on 1/25. 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.
Tue 4/284:21 pm
DEN
-
OTP
2 stops23h 49m
Lufthansa
Mon 5/47:20 pm
OTP
-
DEN
1 stop28h 00m
Lufthansa
Deal found 1/25$559

Find 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$525
(KAYAK)

One-way from

$267
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$610
Provider with most accurate pricing for Denver Intl-Bucharest (BUH) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Bucharest (BUH) flights.
Search Deals
From Colorado to Bucharest Otopeni Intl
Search Deals
One-way flight from Colorado to Bucharest Otopeni Intl
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($241 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 27, 2026.
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

Mon 4/27

4:05 pm-6:35 pm

1 stop17h 30m

Bucharest Otopeni Intl

Fri 5/1

6:05 am-11:30 pm

2 stops26h 25m

$543

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Sun 4/26

8:25 pm-1:10 am

1 stop19h 45m

Bucharest Otopeni Intl

Thu 4/30

6:05 am-12:44 am

2 stops27h 39m

$543

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Mon 4/27

8:25 pm-1:10 am

1 stop19h 45m

Bucharest Otopeni Intl

Thu 4/30

6:05 am-10:15 pm

2 stops25h 10m

$543

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Sun 4/26

8:25 pm-1:10 am

1 stop19h 45m

Bucharest Otopeni Intl

Tue 5/5

6:05 am-7:20 pm

2 stops22h 15m

$543

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Mon 4/27

8:25 pm-1:10 am

1 stop19h 45m

Bucharest Otopeni Intl

Tue 5/5

6:05 am-10:14 pm

2 stops25h 09m

$543

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Sun 4/26

8:25 pm-1:10 am

1 stop19h 45m

Bucharest Otopeni Intl

Wed 5/6

6:05 am-12:44 am

2 stops27h 39m

$543

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Mon 4/27

8:25 pm-1:10 am

1 stop19h 45m

Bucharest Otopeni Intl

Wed 5/6

6:05 am-11:37 pm

2 stops26h 32m

$543

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Sun 4/26

8:25 pm-1:10 am

1 stop19h 45m

Bucharest Otopeni Intl

Fri 5/1

6:05 am-12:44 am

2 stops27h 39m

$543

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Sat 4/25

6:05 pm-12:00 pm

2 stops32h 55m

Bucharest Otopeni Intl

Mon 5/4

1:50 pm-6:12 pm

2 stops37h 22m

$561

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

Sat 4/25

6:40 pm-12:20 am

1 stop20h 40m

Bucharest Otopeni Intl

Mon 5/4

3:40 pm-4:30 pm

1 stop33h 50m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 17 results
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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, March is the cheapest month in which you can book a flight from Colorado to Bucharest Otopeni Intl Airport (average of $519). Flying from Colorado to Bucharest Otopeni Intl Airport in December is currently the most expensive (average of $873). 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.

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

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 30m. Fly via United Airlines to get the fastest option. There are 5847 mi between Colorado and Bucharest Otopeni Intl Airport.

  • 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, March is the cheapest month in which you can book a flight from Colorado to Bucharest Otopeni Intl Airport (average of $519). Flying from Colorado to Bucharest Otopeni Intl Airport in December is currently the most expensive (average of $873). 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$534Average$916FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$552Average$825FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$621Average$861FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$622Average$967FlexibilityNo cancel feeOn-time76%

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