The cheapest times to fly from ILY to DCA are

  • October 8th to March 18th (except the week of October 22nd)

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 ILY to DCA is early February. Prices can be as high as $6920 for Saturday flights during early to mid April, or as low as $745 for Tuesday flights around early February.


When to Fly to Washington

Flying from Islay (ILY) to Washington, DC (DCA) will usually cost between $752 to $4735 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early February with an average ticket price of $788. Due to high demand the most expensive time to fly is early to mid April, with an average price of $4953. Planning your trip to low-cost times can easily save you $4165 on economy flights and even more on first-class flights. Generally, any price below $1041 can be considered a good price for a round-trip ILY to DCA flight.

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

ILY to DCA Flight Prices

Compared to other flights, the ILY to DCA flight is priced close to the average and costs slightly more than the average flight leaving from Islay. The average price per mile (for a direct flight) is $0.19, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to DCA, and Monday the cheapest day to fly back into ILY. Saturdays are the most expensive days to fly to Washington, and Fridays are the most expensive days to return to Islay. 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 Tuesday and returning a week later will cost an average of $1548. Return trip prices are from the DCA to ILY 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 ILY to DCA 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 ILY to DCA while comparing.

Destination alternative #1: Washington Dulles International Airport (IAD) in Washington, DC

  • 24 miles (39 km) away from DCA
  • Usually 1.63% less expensive than DCA
  • 2-layover flights available

See ILY to IAD flights


Flight Hacking ILY to DCA

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 ILY to DCA — but Champion Traveler does!

Hack #1: Glasgow (ILY > GLA > DCA)

  • Price for both tickets: $856
  • Average savings: $186 (17.82%)

See ILY to BOS flights

Hack #2: Boston, MA (ILY > BOS > DCA)

  • Price for both tickets: $908
  • Average savings: $134 (12.82%)

See ILY to GLA flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Aer Lingus, American, British Airways, Delta, Loganair, United, and potentially more during busy seasons.

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

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

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

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

How many flights go between Islay and Washington, DC?

It depends on the day of the week and the date, but a typical day might have around 9 available flights from ILY to DCA.


Airport Location Info


Departing Airport

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

Return Airport

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


Other Resources

Flights from ILY

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.