The cheapest times to fly from PRG to IAD are

  • January 8th to May 6th
  • October 8th to December 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 PRG to IAD is early November. Prices can be as high as $1195 for Saturday flights during early to mid August, or as low as $623 for Tuesday flights around early November.


When to Fly to Washington

Flying from Prague (PRG) to Washington, DC (IAD) will usually cost between $624 to $965 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $646. Due to high demand the most expensive time to fly is early to mid August, with an average price of $1062. Planning your trip to low-cost times can easily save you $416 on economy flights and even more on first-class flights. Generally, any price below $679 can be considered a good price for a round-trip PRG to IAD flight.

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

PRG to IAD Flight Prices

Compared to other flights, the PRG to IAD flight is cheaper than the average and costs slightly more than the average flight leaving from Prague. 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 IAD, and Monday the cheapest day to fly back into PRG. 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 $101 (11%) 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 $678. Return trip prices are from the IAD to PRG 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 PRG 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 8 hour 43 minutes may not be realistic.


Flight Hacking PRG 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 PRG to IAD — but Champion Traveler does!

Hack #1: Copenhagen (PRG > CPH > IAD)

  • Price for both tickets: $472
  • Average savings: $208 (30.56%)

See PRG to OSL flights

Hack #2: Oslo (PRG > OSL > IAD)

  • Price for both tickets: $498
  • Average savings: $181 (26.66%)

See PRG to CPH flights

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

  • Price for both tickets: $532
  • Average savings: $148 (21.72%)

See PRG to DUB flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 29 major airlines flying this route most often: Adria, Aer Lingus, Aeroflot, Air Canada, Air France, Alitalia, American, Austrian, British Airways, Brussels Airlines, CSA, Delta, Finnair, Iberia, Icelandair, KLM, LOT, Lufthansa, Norwegian, Norwegian Air International, Royal Air Maroc, SAS, SWISS, Tap Air Portugal, THAI, Turkish Airlines, United, Volotea, Wizz Air, and potentially more during busy seasons.

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

The distance between the two airports is roughly 4293 miles or 6909 kilometers.

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

The real-world flight time for a nonstop PRG to IAD flight is about 8 hour 43 minutes.

How many flights go between Prague and Washington, DC?

It depends on the day of the week and the date, but a typical day might have around 63 available flights from PRG to IAD.


Airport Location Info


Departing Airport

Origination code PRG
Origination airport name Ruzyne Airport
City Prague
Country Czechia
Latitude 50.1
Longitude 14.3

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.