The cheapest times to fly from OTP to IAD are

  • October 8th to April 22nd (except the weeks of December 10th, January 1st, and April 9th)

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 IAD is mid to late November. Prices can be as high as $1139 for Saturday flights during early July, or as low as $674 for Monday flights around mid to late November.


When to Fly to Washington

Flying from Bucharest (OTP) to Washington, DC (IAD) will usually cost between $712 to $1080 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late November with an average ticket price of $712. Due to high demand the most expensive time to fly is early July, with an average price of $1111. Planning your trip to low-cost times can easily save you $399 on economy flights and even more on first-class flights. Generally, any price below $775 can be considered a good price for a round-trip OTP to IAD flight.

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

OTP to IAD Flight Prices

Compared to other flights, the OTP to IAD flight is cheaper than 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

Monday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $78 (9%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $785. Return trip prices are from the IAD 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 IAD can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 9 hour 55 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from OTP to IAD while comparing.

Destination alternative #1: Ronald Reagan Washington National Airport (DCA) in Washington, DC

  • 24 miles (39 km) away from IAD
  • Usually 8.52% less expensive than IAD
  • 1-layover flights available

See OTP to DCA flights


Flight Hacking OTP to IAD

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 IAD — but Champion Traveler does!

Hack #1: Oslo (OTP > OSL > IAD)

  • Price for both tickets: $512
  • Average savings: $263 (33.94%)

See OTP to CPH flights

Hack #2: Copenhagen (OTP > CPH > IAD)

  • Price for both tickets: $548
  • Average savings: $228 (29.35%)

See OTP to OSL flights

Hack #3: Dublin (OTP > DUB > IAD)

  • Price for both tickets: $552
  • Average savings: $223 (28.77%)

See OTP to DUB flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 24 major airlines flying this route most often: Aeroflot, Air Canada, Air Europa, Air France, Alitalia, American, Austrian, British Airways, Brussels Airlines, Delta, Emirates, Finnair, Iberia, KLM, LOT, Lufthansa, Qatar Airways, SAS, SWISS, Tap Air Portugal, TAROM, Turkish Airlines, United, Virgin Atlantic, and potentially more during busy seasons.

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

The distance between the two airports is roughly 4964 miles or 7989 kilometers.

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

The real-world flight time for a nonstop OTP to IAD flight is about 9 hour 55 minutes.

How many flights go between Bucharest and Washington, DC?

It depends on the day of the week and the date, but a typical day might have around 61 available flights from OTP to IAD.


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 IAD
Destination airport name Washington Dulles International Airport
City Washington, DC
Country the United States
Latitude 38.9
Longitude -77.5


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.