The cheapest times to fly from DCA to ILY are

  • January 8th to March 25th
  • September 10th to November 4th (except the weeks of September 17th and October 15th)

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 DCA to ILY is early March. Prices can be as high as $5231 for Friday flights during mid July, or as low as $813 for Monday flights around early March.


When to Fly to Islay

Flying from Washington, DC (DCA) to Islay (ILY) will usually cost between $820 to $2223 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early March with an average ticket price of $846. Due to high demand the most expensive time to fly is mid July, with an average price of $2414. Planning your trip to low-cost times can easily save you $1568 on economy flights and even more on first-class flights. Generally, any price below $928 can be considered a good price for a round-trip DCA to ILY flight.

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

DCA to ILY Flight Prices

Compared to other flights, the DCA to ILY flight is priced close to the average and costs less than the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.17, which is below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to ILY, and Tuesday the cheapest day to fly back into DCA. Fridays are the most expensive days to fly to Islay, and Saturdays are the most expensive days to return to Washington. Selecting flights on the least expensive days could save you up to $805 (38%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $949. Return trip prices are from the ILY to DCA 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 DCA to ILY can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 7 hour 1 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 DCA to ILY while comparing.

Destination alternative #1: Glasgow Airport (GLA) in Glasgow

  • 72 miles (116 km) away from ILY
  • Usually 4.69% less expensive than ILY
  • 1-layover flights available

See DCA to GLA flights


Flight Questions Answered

Still have questions about flying from DCA to ILY? We’ve got answers.

Which airlines fly this route?

You can find 8 major airlines flying this route most often: Aer Lingus, Air Canada, American, British Airways, Delta, Loganair, SAS, United, and potentially more during busy seasons.

How far away is it from Islay Airport to Ronald Reagan Washington National Airport?

The distance between the two airports is roughly 3350 miles or 5391 kilometers.

How long does it take to fly from DCA to ILY?

The real-world flight time for a nonstop DCA to ILY flight is about 7 hour 1 minutes.

How many flights go between Washington, DC and Islay?

It depends on the day of the week and the date, but a typical day might have around 22 available flights from DCA to ILY.


Airport Location Info


Departing Airport

Origination code DCA
Origination airport name Ronald Reagan Washington National Airport
City Washington, DC
Country the United States
Latitude 38.9
Longitude -77

Return Airport

Destination code ILY
Destination airport name Islay Airport
City Islay
Country the United Kingdom
Latitude 55.7
Longitude -6.3


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.