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Shannon

$288+ Cheap flights from Denver (DEN) to Shannon (SNN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SNN
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
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Cheap flight deals from Denver to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Shannon (SNN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 17, 2025.

Round-trip from

$485
(American Airlines)

One-way from

$288
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$553
From Denver Intl to Shannon
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One-way flight from Denver Intl to Shannon
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Highest demand for flights based on searches. 21% potential increase in price ($215 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($72 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Denver to Shannon

Cheapest flights from Denver to Shannon
Explore the most affordable flight options available from Denver to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

This American Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:25 pmDEN - SNN
1 stop16h 20mAmerican Airlines
Mon 11/177:50 amSNN - DEN
1 stop14h 40mAmerican Airlines
Deal found 8/15$485
This American Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/312:21 pmDEN - SNN
2 stops16h 09mAmerican Airlines
Mon 11/107:50 amSNN - DEN
2 stops16h 14mAmerican Airlines
Deal found 8/15$500
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/193:55 pmDEN - SNN
1 stop11h 20mUnited Airlines
Tue 9/29:30 amSNN - DEN
1 stop13h 09mUnited Airlines
Deal found 8/17$517
This American Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/102:04 pmDEN - SNN
2 stops18h 46mAmerican Airlines
Wed 10/159:15 pmSNN - DEN
1 stop26h 10mAmerican Airlines
Deal found 8/15$519
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/166:00 amDEN - SNN
1 stop18h 30mUnited Airlines
Sat 8/239:30 amSNN - DEN
1 stop19h 30mUnited Airlines
Deal found 8/15$542
This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:35 pmDEN - SNN
1 stop19h 00mAmerican Airlines
Thu 10/167:40 amSNN - DEN
1 stop15h 45mAmerican Airlines
Deal found 8/17$545

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Shannon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2025.
Use the filters below to find and compare flights from Denver to Shannon that are best for you.

Fly from

Denver

Fly to

Shannon

Route

Depart

Return

Price

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Mon 11/3

5:25 pm-4:45 pm

1 stop16h 20m

Shannon

Mon 11/10

7:50 am-3:30 pm

1 stop14h 40m

$485

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Wed 12/31

5:25 pm-4:45 pm

1 stop16h 20m

Shannon

Sun 1/11

7:50 am-3:30 pm

1 stop14h 40m

$485

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Sun 11/9

5:25 pm-4:45 pm

1 stop16h 20m

Shannon

Mon 11/17

7:50 am-3:30 pm

1 stop14h 40m

$485

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Sat 10/4

7:47 pm-4:35 pm

3 stops37h 48m

$288

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Mon 10/13

6:00 am-8:20 pm

3 stops55h 20m

$291

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Mon 10/13

6:35 pm-4:10 pm

1 stop14h 35m

$382

DenverShannon

DEN - SNN

DENSNN

Denver Intl

Sat 10/4

2:00 pm-10:15 am

1 stop13h 15m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Best time to book a flight from Denver to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Shannon

How far ahead should I book a flight from Denver to Shannon, Clare?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Shannon. Price data was last updated on August 8, 2025.

The price you pay for your flight from Denver to Shannon, Clare may vary depending on when you book. For the best chance of a lower fare, look to book 32 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Denver to Shannon, Clare?

Currently, February is the cheapest month in which you can book a flight from Denver to Shannon, Clare (average of $533). Flying from Denver to Shannon, Clare in June is currently the most expensive (average of $931). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to SNN?

Find hourly flight availability from Denver to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2025.

A simple way to save on the total cost of your ticket is to fly from Denver to Shannon, Clare in the morning. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shannon. Reviews last updated August 17, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Denver to Shannon to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,986 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,986 reviews
Delta
8.0
Very good
7,986 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,919 reviews
Delta
8.0
Very good
7,986 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,986 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.2
Good
1,220 reviews
Delta
8.0
Very good
7,986 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.7
Okay
7,271 reviews
Delta
8.0
Very good
7,986 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Denver to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Denver to Shannon, Clare round-trip?

    Cheapflights users have booked flights from Denver to Shannon, Clare round-trip from $500. Other airlines that can offer you cheap pricing are United Airlines, from $509, and Delta, from $561. You may be able to fly from Denver to Shannon, Clare for 37% less than the average price by searching for these airlines.

  • Can I find deals for flights from Denver to Shannon that include hotel bookings?

    Yes. In addition to deals on Denver to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Shannon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Shannon.

  • Can I find deals for business class flights from Denver to Shannon?

    Yes. Cheapflights offers flight deals from Denver to Shannon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Shannon, Clare?

    Currently, February is the cheapest month in which you can book a flight from Denver to Shannon, Clare (average of $533). Flying from Denver to Shannon, Clare in June is currently the most expensive (average of $931). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Ennis

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Top 5 airlines flying from Denver to Shannon

Discover the top 5 airlines that operate flights from Denver to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$500Average$674FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$509Average$726FlexibilityNo cancel feeOn-time69%
DeltaCheapest$561Average$732FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$672Average$821FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$674Average$1,168FlexibilityNo cancel feeOn-time70%

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