The cheapest times to fly from YYT to IAD are

  • January 8th to March 4th
  • August 13th 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 YYT to IAD is early September. Prices can be as high as $708 for Sunday flights during early to mid April, or as low as $327 for Wednesday flights around early September.


When to Fly to Washington

Flying from St. John’s (YYT) to Washington, DC (IAD) will usually cost between $349 to $594 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early September with an average ticket price of $349. Due to high demand the most expensive time to fly is early to mid April, with an average price of $593. Planning your trip to low-cost times can easily save you $244 on economy flights and even more on first-class flights. Generally, any price below $504 can be considered a good price for a round-trip YYT to IAD flight.

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

YYT to IAD Flight Prices

Compared to other flights, the YYT to IAD flight is cheaper than the average and costs less than the average flight leaving from St. John’s. The average price per mile (for a direct flight) is $0.23, which is below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Sundays 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 $69 (12%) 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 $455. Return trip prices are from the IAD to YYT 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 YYT 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 3 hour 27 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 YYT to IAD while comparing.

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

  • 24 miles (39 km) away from IAD
  • Usually 5.36% less expensive than IAD
  • 1-layover flights available

See YYT to DCA flights

Destination alternative #2: Baltimore/Washington International Thurgood Marshall Airport (BWI) in Baltimore, MD

  • 45 miles (72 km) away from IAD
  • Usually 3.08% less expensive than IAD
  • 1-layover flights available

See YYT to BWI flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 7 major airlines flying this route most often: Air Canada, Alaska, Avianca, Delta, Porter Airlines, United, WestJet, and potentially more during busy seasons.

How far away is it from Washington Dulles International Airport to St. John’s International Airport?

The distance between the two airports is roughly 1371 miles or 2206 kilometers.

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

The real-world flight time for a nonstop YYT to IAD flight is about 3 hour 27 minutes.

How many flights go between St. John’s and Washington, DC?

It depends on the day of the week and the date, but a typical day might have around 58 available flights from YYT to IAD.


Airport Location Info


Departing Airport

Origination codeYYT
Origination airport nameSt. John’s International Airport
CitySt. John’s

Return Airport

Destination codeIAD
Destination airport nameWashington Dulles International Airport
CityWashington, DC
Countrythe United States


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.