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$540+ Cheap flights from Colorado to Romania

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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — OTP
nov. 6 — nov. 131
jue. 11/6
jue. 11/13
1 adult, Economy
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Cheap flight deals from Colorado to Romania

Keep the following information in mind while searching for Colorado to Romania flight deals. Data was last updated octubre 7, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$540
(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 Romania
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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 Romania

Cheapest flights from Colorado to Romania
Explore the most affordable flight options available from Colorado to Romania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 7, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
mar. 10/285:20 pmDEN - OTP
1 stop17h 15mLufthansa
jue. 11/66:05 amOTP - DEN
1 stop17h 30mLufthansa
Deal found 10/6$540
This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
lun. 10/275:20 pmDEN - OTP
1 stop17h 15mLufthansa
mar. 11/116:05 amOTP - DEN
1 stop17h 30mLufthansa
Deal found 10/6$542
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
mar. 10/285:20 pmDEN - OTP
1 stop17h 15mLufthansa
mar. 11/116:05 amOTP - DEN
1 stop17h 30mLufthansa
Deal found 10/7$545
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
mar. 10/286:45 pmDEN - OTP
1 stop21h 10mLufthansa
mié. 11/56:05 amOTP - DEN
1 stop18h 55mLufthansa
Deal found 10/7$553
This United Airlines deal was found by Cheapflights users on 10/5. 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.
mié. 10/224:15 pmDEN - CLJ
1 stop16h 05mUnited Airlines
sáb. 11/16:00 amCLJ - DEN
1 stop21h 55mUnited Airlines
Deal found 10/5$679
This Air Canada deal was found by Cheapflights users on 10/6. 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.
mar. 11/2511:15 amDEN - CLJ
2 stops37h 50mMultiple Airlines
dom. 11/306:00 amCLJ - DEN
2 stops39h 23mMultiple Airlines
Deal found 10/6$722
This United Airlines deal was found by Cheapflights users on 10/6. 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.
vie. 11/78:20 pmDEN - SBZ
1 stop12h 55mUnited Airlines
mar. 11/116:00 amSBZ - DEN
1 stop17h 35mUnited Airlines
Deal found 10/6$773
This Trip.com deal was found by Cheapflights users on 10/5. 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.
sáb. 12/277:20 pmDEN - CLJ
1 stop28h 40mTurkish Airlines
vie. 1/29:50 amCLJ - DEN
1 stop16h 45mTurkish Airlines
Deal found 10/5$802
This United Airlines deal was found by Cheapflights users on 10/6. 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.
mar. 11/258:20 pmDEN - CLJ
1 stop32h 20mUnited Airlines
dom. 11/302:25 pmCLJ - DEN
2 stops52h 58mUnited Airlines
Deal found 10/6$828
This Mytrip deal was found by Cheapflights users on 10/6. 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.
jue. 11/2011:15 amDEN - CLJ
3 stops29h 10mMultiple Airlines
jue. 11/275:05 pmCLJ - DEN
3 stops32h 35mMultiple Airlines
Deal found 10/6$900
This oojo deal was found by Cheapflights users on 10/6. 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.
sáb. 10/117:50 pmDEN - CLJ
1 stop28h 15mTurkish Airlines
dom. 10/199:10 pmCLJ - DEN
2 stops34h 54mTurkish Airlines
Deal found 10/6$904
This Ovago deal was found by Cheapflights users on 10/6. 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.
jue. 11/204:05 pmDEN - CLJ
2 stops23h 50mLufthansa
jue. 11/272:25 pmCLJ - DEN
1 stop13h 30mLufthansa
Deal found 10/6$913

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Romania 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 octubre 7, 2025.
Use the filters below to find and compare flights from Colorado to Romania that are best for you.

Fly from

Colorado

Fly to

Romania

Route

Depart

Return

Price

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

lun. 10/27

9:20 pm-6:35 pm

1 stop13h 15m

Bucharest Otopeni Intl

jue. 11/6

5:50 am-1:40 pm

1 stop16h 50m

$583

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

lun. 10/27

9:20 pm-6:35 pm

1 stop13h 15m

Bucharest Otopeni Intl

mié. 11/5

6:05 am-4:00 pm

1 stop18h 55m

$583

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

lun. 10/27

5:25 pm-6:35 pm

2 stops17h 10m

Bucharest Otopeni Intl

mar. 11/11

5:55 am-4:00 pm

1 stop19h 05m

$588

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

mar. 10/28

6:45 pm-6:25 pm

1 stop15h 40m

Bucharest Otopeni Intl

mié. 11/5

6:05 am-9:03 pm

2 stops23h 58m

$603

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

lun. 11/17

4:20 pm-6:35 pm

1 stop17h 15m

Bucharest Otopeni Intl

lun. 11/24

2:50 pm-7:55 pm

2 stops38h 05m

$603

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

dom. 10/26

12:50 am-1:00 pm

2 stops28h 10m

Bucharest Otopeni Intl

lun. 11/10

1:55 pm-5:51 pm

2 stops36h 56m

$605

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

mar. 10/28

5:45 am-1:00 pm

2 stops23h 15m

Bucharest Otopeni Intl

mié. 11/5

1:55 pm-4:47 pm

2 stops35h 52m

$605

DenverBucharest

DEN - OTP

DENOTP

Denver Intl

dom. 10/26

12:50 am-1:00 pm

2 stops28h 10m

Bucharest Otopeni Intl

jue. 11/6

6:00 am-10:24 pm

2 stops25h 24m

$605

DenverCluj Napoca

DEN - CLJ

DENCLJ

Denver Intl

mié. 4/1

4:15 pm-5:20 pm

1 stop16h 05m

Cluj Napoca

dom. 4/5

1:45 pm-1:45 pm

1 stop33h 00m

$632

DenverCluj Napoca

DEN - CLJ

DENCLJ

Denver Intl

mié. 4/1

9:58 am-1:05 pm

2 stops18h 07m

Cluj Napoca

dom. 4/5

6:00 am-12:29 pm

2 stops39h 29m

$638

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 17 results
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Best time to book a flight from Colorado to Romania

Have a flexible travel schedule? Discover the best time to fly to Romania 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 Romania

What is the cheapest month to book a flight from Colorado to Romania?

Currently, April is the cheapest month in which you can book a flight from Colorado to Romania (average of $508). Flying from Colorado to Romania 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 RO?

Find hourly flight availability from Colorado to Romania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 7, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 46% on flights from Colorado to Romania by exploring options for tickets in the morning.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Romania. 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 Romania?

    United Airlines, Air Canada, and Lufthansa can get you from Colorado to Romania in just under 12h 10m. Your travel time can differ by up to 5h 57m. The distance from Colorado to Romania is about 5639 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

  • How can I find direct flights from Colorado to Romania?

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

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

    Yes. Cheapflights offers flight deals from Colorado to Romania 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 Romania?

    Currently, April is the cheapest month in which you can book a flight from Colorado to Romania (average of $508). Flying from Colorado to Romania 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

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Alternative routes for Colorado to Romania

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 Romania

Discover the top 4 airlines that operate flights from Colorado to Romania. 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 octubre 7, 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$1,117FlexibilityNo cancel feeOn-time76%

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