The cheapest times to fly from OTP to DEN are

  • October 1st to April 8th (except the weeks of December 10th and January 1st)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from OTP to DEN is late February and early March. Prices can be as high as $1359 for Saturday flights during early to mid July, or as low as $802 for Tuesday flights around late February and early March.


When to Fly to Denver

Flying from Bucharest (OTP) to Denver, CO (DEN) will usually cost between $828 to $1293 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late February and early March with an average ticket price of $839. Due to high demand the most expensive time to fly is early to mid July, with an average price of $1326. Planning your trip to low-cost times can easily save you $488 on economy flights and even more on first-class flights. Generally, any price below $957 can be considered a good price for a round-trip OTP to DEN flight.

See below for a graph of average weekly prices for the OTP to DEN route. All prices are for round-trip tickets in USD.

OTP to DEN Flight Prices

Compared to other flights, the OTP to DEN flight is priced close to the average and costs slightly more than the average flight leaving from Bucharest. The average price per mile (for a direct flight) is $0.1, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to DEN, and Wednesday the cheapest day to fly back into OTP. Saturdays are the most expensive days to fly to Denver, and Sundays are the most expensive days to return to Bucharest. Selecting flights on the least expensive days could save you up to $160 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $953. Return trip prices are from the DEN to OTP flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from OTP to DEN can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 11 hour 31 minutes may not be realistic.


Flight Hacking OTP to DEN

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from OTP to DEN — but Champion Traveler does!

Hack #1: London (OTP > LHR > DEN)

  • Price for both tickets: $602
  • Average savings: $355 (37.1%)

See OTP to DUB flights

Hack #2: Dublin (OTP > DUB > DEN)

  • Price for both tickets: $629
  • Average savings: $329 (34.33%)

See OTP to LHR flights

Hack #3: Amsterdam (OTP > AMS > DEN)

  • Price for both tickets: $687
  • Average savings: $270 (28.21%)

See OTP to AMS flights


Flight Questions Answered

Still have questions about flying from OTP to DEN? We’ve got answers.

Which airlines fly this route?

You can find 33 major airlines flying this route most often: Aeroflot, Air Canada, Air Europa, Air France, Air Serbia, Alaska, Alitalia, Allegiant, American, Austrian, Blue Air, British Airways, Brussels Airlines, Condor, Delta, Emirates, Finnair, Frontier, Iberia, Icelandair, KLM, LOT, Lufthansa, Norwegian, Norwegian Air UK, Qatar Airways, SAS, Singapore Airlines, SWISS, TAROM, Turkish Airlines, United, Wizz Air, and potentially more during busy seasons.

How far away is it from Denver International Airport to Henri Coanda Airport?

The distance between the two airports is roughly 5849 miles or 9413 kilometers.

How long does it take to fly from OTP to DEN?

The real-world flight time for a nonstop OTP to DEN flight is about 11 hour 31 minutes.

How many flights go between Bucharest and Denver, CO?

It depends on the day of the week and the date, but a typical day might have around 64 available flights from OTP to DEN.


Airport Location Info


Departing Airport

Origination code OTP
Origination airport name Henri Coanda Airport
City Bucharest
Country Romania
Latitude 44.6
Longitude 26.1

Return Airport

Destination code DEN
Destination airport name Denver International Airport
City Denver, CO
Country the United States
Latitude 39.9
Longitude -104.7


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.