The cheapest times to fly from DEN to SNN are

  • January 1st to April 1st
  • May 7th to May 27th (except the week of May 14th)
  • September 24th to October 7th
  • October 22nd to December 16th

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 DEN to SNN is early November. Prices can be as high as $1363 for Saturday flights during mid December, or as low as $549 for Tuesday flights around early November.


When to Fly to Shannon

Flying from Denver, CO (DEN) to Shannon (SNN) will usually cost between $605 to $1071 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 $632. Due to high demand the most expensive time to fly is mid December, with an average price of $1147. Planning your trip to low-cost times can easily save you $515 on economy flights and even more on first-class flights. Generally, any price below $792 can be considered a good price for a round-trip DEN to SNN flight.

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

DEN to SNN Flight Prices

Compared to other flights, the DEN to SNN flight is cheaper than the average and costs less than the average flight leaving from Denver. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to SNN, and Wednesday the cheapest day to fly back into DEN. Saturdays are the most expensive days to fly to Shannon, and Sundays are the most expensive days to return to Denver. Selecting flights on the least expensive days could save you up to $95 (11%) 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 $738. Return trip prices are from the SNN to DEN 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 DEN 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 8 hour 44 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 DEN to SNN while comparing.

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

  • 121 miles (195 km) away from SNN
  • Usually 10.92% less expensive than SNN
  • 1-layover flights available

See DEN to DUB flights


Flight Hacking DEN 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 DEN to SNN — but Champion Traveler does!

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

  • Price for both tickets: $675
  • Average savings: $117 (14.77%)

See DEN to LGW flights

Hack #2: London (DEN > LHR > SNN)

  • Price for both tickets: $712
  • Average savings: $81 (10.16%)

See DEN to LHR flights


Flight Questions Answered

Still have questions about flying from DEN 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 Denver International Airport?

The distance between the two airports is roughly 4311 miles or 6938 kilometers.

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

The real-world flight time for a nonstop DEN to SNN flight is about 8 hour 44 minutes.

How many flights go between Denver, CO and Shannon?

It depends on the day of the week and the date, but a typical day might have around 41 available flights from DEN to SNN.


Airport Location Info


Departing Airport

Origination code DEN
Origination airport name Denver International Airport
City Denver, CO
Country the United States
Latitude 39.9
Longitude -104.7

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.