The cheapest times to fly from IAD to GLT are

  • January 22nd to March 25th
  • April 16th to May 13th
  • July 23rd to September 30th
  • November 5th 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 IAD to GLT is late August to early September. Prices can be as high as $3906 for Friday flights during late December, or as low as $1738 for Tuesday flights around late August to early September.


When to Fly to Gladstone Central

Flying from Washington, DC (IAD) to Gladstone (GLT) will usually cost between $1938 to $3103 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late August to early September with an average ticket price of $1916. Due to high demand the most expensive time to fly is late December, with an average price of $3596. Planning your trip to low-cost times can easily save you $1680 on economy flights and even more on first-class flights. Generally, any price below $2124 can be considered a good price for a round-trip IAD to GLT flight.

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

IAD to GLT Flight Prices

Compared to other flights, the IAD to GLT flight is more expensive than the average and costs more than the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.14, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly to Gladstone Central, and Sundays are the most expensive days to return to Washington. Selecting flights on the least expensive days could save you up to $215 (9%) 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 $2117. Return trip prices are from the GLT to IAD 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 IAD to GLT can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 17 hour 56 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 IAD to GLT while comparing.

Destination alternative #1: Hervey Bay Airport (HVB) in Hervey Bay

  • 144 miles (232 km) away from GLT
  • Usually 6.99% less expensive than GLT
  • 2-layover flights available

See IAD to HVB flights

Destination alternative #2: Rockhampton Airport (ROK) in Rockhampton

  • 58 miles (93 km) away from GLT
  • Usually 6.71% less expensive than GLT
  • 2-layover flights available

See IAD to ROK flights


Flight Hacking IAD to GLT

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 IAD to GLT — but Champion Traveler does!

Hack #1: Brisbane (IAD > BNE > GLT)

  • Price for both tickets: $1557
  • Average savings: $567 (26.7%)

See IAD to BNE flights

Hack #2: Los Angeles, CA (IAD > LAX > GLT)

  • Price for both tickets: $1669
  • Average savings: $455 (21.4%)

See IAD to LAX flights

Hack #3: San Jose, CA (IAD > SJC > GLT)

  • Price for both tickets: $1911
  • Average savings: $213 (10.01%)

See IAD to SJC flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 10 major airlines flying this route most often: Air Canada, Air New Zealand, Alaska, American, Delta, Emirates, Qantas, Singapore Airlines, United, Virgin Australia, and potentially more during busy seasons.

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

The distance between the two airports is roughly 9421 miles or 15162 kilometers.

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

The real-world flight time for a nonstop IAD to GLT flight is about 17 hour 56 minutes.

How many flights go between Washington, DC and Gladstone?

It depends on the day of the week and the date, but a typical day might have around 20 available flights from IAD to GLT.


Airport Location Info


Departing Airport

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

Return Airport

Destination code GLT
Destination airport name Gladstone Airport
City Gladstone
Country Australia
Latitude -23.9
Longitude 151.2


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.