The cheapest times to fly from DCA to SNN are

  • January 1st to March 4th
  • August 27th to March 4th (except the weeks of December 17th and December 24th)

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 SNN is early November. Prices can be as high as $1272 for Saturday flights during mid December, or as low as $640 for Wednesday flights around early November.


When to Fly to Shannon

Flying from Washington, DC (DCA) to Shannon (SNN) will usually cost between $692 to $1066 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $694. Due to high demand the most expensive time to fly is mid December, with an average price of $1134. Planning your trip to low-cost times can easily save you $439 on economy flights and even more on first-class flights. Generally, any price below $929 can be considered a good price for a round-trip DCA to SNN flight.

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

DCA to SNN Flight Prices

Compared to other flights, the DCA to SNN 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 $0.18, which is below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly to Shannon, and Fridays are the most expensive days to return to Washington. Selecting flights on the least expensive days could save you up to $55 (6%) 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 $852. Return trip prices are from the SNN 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 SNN can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 6 hour 54 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 SNN while comparing.

Destination alternative #1: Dublin Airport (DUB) in Dublin

  • 121 miles (195 km) away from SNN
  • Usually 8.77% less expensive than SNN
  • 1-layover flights available

See DCA to DUB flights


Flight Hacking DCA to SNN

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 DCA to SNN — but Champion Traveler does!

Hack #1: London (DCA > LGW > SNN)

  • Price for both tickets: $722
  • Average savings: $208 (22.34%)

See DCA to LGW flights

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

  • Price for both tickets: $728
  • Average savings: $202 (21.69%)

See DCA to BOS flights

Hack #3: New York, NY (DCA > JFK > SNN)

  • Price for both tickets: $729
  • Average savings: $200 (21.53%)

See DCA to JFK flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 12 major airlines flying this route most often: Aer Lingus, Air Canada, Air France, American, British Airways, Delta, Finnair, Iberia, JetBlue, KLM, Lufthansa, United, and potentially more during busy seasons.

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

The distance between the two airports is roughly 3285 miles or 5287 kilometers.

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

The real-world flight time for a nonstop DCA to SNN flight is about 6 hour 54 minutes.

How many flights go between Washington, DC and Shannon?

It depends on the day of the week and the date, but a typical day might have around 52 available flights from DCA to SNN.


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 SNN
Destination airport name Shannon Airport
City Shannon
Country Ireland
Latitude 52.7
Longitude -8.9


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.