The cheapest times to fly from DEN to IAS are

  • January 8th to May 13th
  • October 29th to November 18th

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 DEN to IAS is late February and early March. Prices can be as high as $4108 for Tuesday flights during early June, or as low as $752 for Wednesday flights around late February and early March.


When to Fly to Iași

Flying from Denver, CO (DEN) to Iasi (IAS) will usually cost between $775 to $3763 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 $1286. Due to high demand the most expensive time to fly is early June, with an average price of $2761. Planning your trip to low-cost times can easily save you $1475 on economy flights and even more on first-class flights. Generally, any price below $1825 can be considered a good price for a round-trip DEN to IAS flight.

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

DEN to IAS Flight Prices

Compared to other flights, the DEN to IAS flight is more expensive than the average and costs more than the average flight leaving from Denver. The average price per mile (for a direct flight) is $0.2, which is below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to fly to IAS, and Sunday the cheapest day to fly back into DEN. Tuesdays are the most expensive days to fly to Iași, and Saturdays are the most expensive days to return to Denver. Selecting flights on the least expensive days could save you up to $740 (27%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $1494. Return trip prices are from the IAS to DEN 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 DEN to IAS can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 11 hour 19 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 DEN to IAS while comparing.

Destination alternative #1: Chisinau International Airport (KIV) in Kishinev

  • 64 miles (103 km) away from IAS
  • Usually 10.93% less expensive than IAS
  • 1-layover flights available

See DEN to KIV flights


Flight Hacking DEN to IAS

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 DEN to IAS — but Champion Traveler does!

Hack #1: Brussels (DEN > BRU > IAS)

  • Price for both tickets: $890
  • Average savings: $935 (51.23%)

See DEN to BRU flights

Hack #2: Billund (DEN > BLL > IAS)

  • Price for both tickets: $1027
  • Average savings: $799 (43.75%)

See DEN to BLL flights

Hack #3: Munich (DEN > MUC > IAS)

  • Price for both tickets: $1055
  • Average savings: $770 (42.19%)

See DEN to MUC flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Air Canada, Air France, Alitalia, Austrian, British Airways, Brussels Airlines, Iberia, KLM, Lufthansa, TAROM, United, and potentially more during busy seasons.

How far away is it from Iasi International Airport to Denver International Airport?

The distance between the two airports is roughly 5745 miles or 9246 kilometers.

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

The real-world flight time for a nonstop DEN to IAS flight is about 11 hour 19 minutes.

How many flights go between Denver, CO and Iasi?

It depends on the day of the week and the date, but a typical day might have around 15 available flights from DEN to IAS.


Airport Location Info


Departing Airport

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

Return Airport

Destination code IAS
Destination airport name Iasi International Airport
City Iasi
Country Romania
Latitude 47.2
Longitude 27.6


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.