The cheapest times to fly from IAD to SNU are

  • January 1st to March 4th (except the week of February 12th)
  • August 6th to December 16th (except the week of November 19th)

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 SNU is mid to late September. Prices can be as high as $1432 for Sunday flights during late December, or as low as $310 for Tuesday flights around mid to late September.


When to Fly to Santa Clara

Flying from Washington, DC (IAD) to Santa Clara (SNU) will usually cost between $436 to $1193 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $431. Due to high demand the most expensive time to fly is late December, with an average price of $1106. Planning your trip to low-cost times can easily save you $675 on economy flights and even more on first-class flights. Generally, any price below $626 can be considered a good price for a round-trip IAD to SNU flight.

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

IAD to SNU Flight Prices

Compared to other flights, the IAD to SNU flight is cheaper than the average and costs less than the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.34, which is in the normal range for a flight.


Flight Prices by Day of the Week

Tuesday 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 $381 (42%) 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 $510. Return trip prices are from the SNU 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 SNU can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 3 hour 3 minutes may not be realistic.


Flight Hacking IAD to SNU

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 SNU — but Champion Traveler does!

Hack #1: Miami, FL (IAD > MIA > SNU)

  • Price for both tickets: $534
  • Average savings: $92 (14.71%)

See IAD to MIA flights

Hack #2: Fort Lauderdale, FL (IAD > FLL > SNU)

  • Price for both tickets: $558
  • Average savings: $68 (10.79%)

See IAD to FLL flights

Hack #3: New York, NY (IAD > JFK > SNU)

  • Price for both tickets: $617
  • Average savings: $9 (1.44%)

See IAD to JFK flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 2 major airlines flying this route most often: American, United, and potentially more during busy seasons.

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

The distance between the two airports is roughly 1146 miles or 1844 kilometers.

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

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

How many flights go between Washington, DC and Santa Clara?

It depends on the day of the week and the date, but a typical day might have around 6 available flights from IAD to SNU.


Airport Location Info


Departing Airport

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

Return Airport

Destination codeSNU
Destination airport nameAbel Santamaria International Airport
CitySanta Clara


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.