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Shannon

$329+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SNN
Sep 8 — Sep 151
Tue 9/8
Tue 9/15
1 adult, Economy
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Cheap 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 9, 2026.

This United Airlines deal was found by Cheapflights users on 8/7. 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 9/11:25 pm -
1 stop11h 05m
Tue 9/812:30 pm -
1 stop15h 41m
Deal found 8/7$708
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Mon 9/141:42 pm -
1 stop13h 33m
Wed 9/239:30 am -
1 stop12h 01m
Deal found 8/6$738
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/151:25 pm -
2 stops13h 50m
Tue 9/2212:30 pm -
2 stops16h 14m
Deal found 8/6$742
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Fri 9/111:25 pm -
1 stop11h 05m
Tue 9/229:30 am -
1 stop15h 55m
Deal found 8/7$788
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Sun 9/138:00 am -
2 stops16h 30m
Wed 9/169:30 am -
1 stop12h 47m
Deal found 8/6$822
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Sun 9/611:44 am -
2 stops15h 31m
Tue 9/2212:30 pm -
2 stops17h 59m
Deal found 8/4$882
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Sun 10/46:00 am -
1 stop21h 15m
Sun 10/1812:30 pm -
2 stops26h 58m
Deal found 8/7$888

Find 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 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$708
(United Airlines)

One-way from

$329
(United Airlines)

Popular in

November

Cheapest in

January

Average price

$783
Provider with most accurate pricing for Denver Intl-Shannon flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Shannon flights.
Search Deals
From Denver Intl to Shannon
Search Deals
One-way flight from Denver Intl to Shannon
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($232 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($53 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 9, 2026.
Use the filters below to find and compare flights from Denver to Shannon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverShannon

DEN Denver Intl - SNN Shannon

DENSNN

Denver Intl

Tue 9/1

12:40 pm-10:15 am

1 stop14h 35m

Shannon

Tue 9/8

9:30 am-8:09 pm

2 stops17h 39m

$712

DenverShannon

DEN Denver Intl - SNN Shannon

DENSNN

Denver Intl

Fri 9/11

9:36 am-7:30 am

1 stop14h 54m

Shannon

Tue 9/22

9:30 am-6:22 pm

2 stops15h 52m

$792

DenverShannon

DEN Denver Intl - SNN Shannon

DENSNN

Denver Intl

Sun 9/6

9:45 am-7:30 am

1 stop14h 45m

Shannon

Tue 9/22

12:30 pm-10:15 pm

2 stops16h 45m

$882

DenverShannon

DEN Denver Intl - SNN Shannon

DENSNN

Denver Intl

Tue 9/29

8:00 am-10:15 am

2 stops19h 15m

Shannon

Wed 10/7

12:30 pm-10:41 pm

1 stop17h 11m

$942

DenverShannon

DEN Denver Intl - SNN Shannon

DENSNN

Denver Intl

Tue 9/1

11:44 am-10:15 am

1 stop15h 31m

Shannon

Sat 9/12

12:30 pm-11:29 pm

2 stops17h 59m

$942

DenverShannon

DEN Denver Intl - SNN Shannon

DENSNN

Denver Intl

Sun 10/11

12:30 pm-10:15 am

1 stop14h 45m

Shannon

Mon 10/19

12:30 pm-8:47 am

2 stops27h 17m

$955
Quickest round-trip

DenverShannon

DEN Denver Intl - SNN Shannon

DENSNN

Denver Intl

Sat 9/19

1:25 pm-7:30 am

1 stop11h 05m

Shannon

Sun 9/27

12:30 pm-10:41 pm

1 stop17h 11m

$973

DenverShannon

DEN Denver Intl - SNN Shannon

DENSNN

Denver Intl

Sun 1/10

5:01 pm-7:25 pm

1 stop19h 24m

Shannon

Thu 1/14

5:30 pm-3:10 pm

1 stop28h 40m

$996
Cheapest one-way
Quickest one-way

DenverShannon

DEN Denver Intl - SNN Shannon

DENSNN

Denver Intl

Mon 10/5

6:00 am-10:15 am

1 stop21h 15m

$329

DenverShannon

DEN Denver Intl - SNN Shannon

DENSNN

Denver Intl

Mon 8/31

7:45 pm-10:15 am

2 stops31h 30m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/7

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Compare providers for flights from Denver to Shannon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Shannon in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Shannon, Clare flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Shannon, Clare flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Shannon, Clare flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Shannon, Clare flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Shannon, Clare flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Currently, January is the cheapest month in which you can book a flight from Denver to Shannon, Clare (average of $599). Flying from Denver to Shannon, Clare in November is currently the most expensive (average of $1,445). 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.

How much does it cost to fly round-trip from Denver to Shannon, Clare?

Airfare is typical for this route at the moment.

Denver to Shannon, Clare flights typically cost between $707 and $972 in September.
The cheapest round-trip price found within the last 5 days was $708 on United Airlines (Sep 1-Sep 8).

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 9, 2026.
Peruse reviews from past customers who have flown with United Airlines,American Airlines, andBritish Airways 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.
United Airlines
7.4
Good
10,089 reviews

Overall

7.4

Boarding

7.7

Food

6.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
10,089 reviews
United Airlines
7.4
Good
10,089 reviews

Overall

7.4

Boarding

7.7

Food

6.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.1
Good
11,893 reviews
United Airlines
7.4
Good
10,089 reviews

Overall

7.4

Boarding

7.7

Food

6.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
British Airways
6.7
Okay
8,153 reviews
United Airlines
7.4
Good
10,089 reviews

Overall

7.4

Boarding

7.7

Food

6.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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.

  • How long is the flight from Denver to Shannon, Clare?

    Airlines like United Airlines fly from Denver to Shannon, Clare in about 14h 35m. The time it takes to get you to your destination can typically vary by up to . The distance from Denver to Shannon, Clare is about 4309 mi.

  • 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 $402. Other airlines that can offer you cheap pricing are American Airlines, from $483, and United Airlines, from $537. You may be able to fly from Denver to Shannon, Clare for 53% 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, January is the cheapest month in which you can book a flight from Denver to Shannon, Clare (average of $599). Flying from Denver to Shannon, Clare in November is currently the most expensive (average of $1,445). 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

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Top 3 airlines flying from Denver to Shannon

Discover the top 3 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 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$402Average$615FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$483Average$599FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$537Average$828FlexibilityNo cancel feeOn-time69%

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