DEN - SNN

$409 Find Cheap Flights from Denver to Shannon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Shannon departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Shannon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Shannon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Shannon, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$480
Typical prices: $575-$871
United Airlines
Sun 4/5Tue 4/21
DEN - SNN • 2 stops
Cheapest one-way
$409
United Airlines
Tue 5/5
DEN - SNN • 1 stop
Top airlines
United Airlines
Cheapest • from $480 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Denver and Shannon. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
London (LHR)
Cheapest • Avg $851 (round-trip)
Newark (EWR)
Shortest trip • 11h 42m (one-way)
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 25% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Shannon!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Shannon (DEN-SNN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Shannon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Shannon

Sun, Apr 5 - Tue, Apr 21
United Airlines Logo
5:51 pm - 10:15 am
DEN
-
SNN
33h 24m
2 stops
United Airlines Logo
12:30 pm - 10:05 pm
SNN
-
DEN
16h 35m
2 stops
$480United Airlines
Sun, Apr 12 - Thu, Apr 30
United Airlines Logo
7:45 am - 10:15 am
DEN
-
SNN
19h 30m
2 stops
United Airlines Logo
12:30 pm - 8:26 am
SNN
-
DEN
26h 56m
2 stops
$493United Airlines
Sun, Apr 26 - Sun, May 3
United Airlines Logo
6:00 am - 10:15 am
DEN
-
SNN
21h 15m
2 stops
United Airlines Logo
12:30 pm - 12:44 am
SNN
-
DEN
19h 14m
2 stops
$503United Airlines
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
3:40 pm - 10:15 am
DEN
-
SNN
11h 35m
1 stop
United Airlines Logo
12:30 pm - 6:10 pm
SNN
-
DEN
12h 40m
1 stop
$509United Airlines
Sun, Apr 12 - Thu, Apr 30
United Airlines Logo
7:45 am - 10:15 am
DEN
-
SNN
19h 30m
2 stops
United Airlines Logo
12:30 pm - 11:28 pm
SNN
-
DEN
17h 58m
2 stops
$513United Airlines
Sun, Apr 19 - Mon, Apr 27
United Airlines Logo
3:40 pm - 10:15 am
DEN
-
SNN
11h 35m
1 stop
United Airlines Logo
12:30 pm - 6:10 pm
SNN
-
DEN
12h 40m
1 stop
$519United Airlines
Sun, Apr 19 - Mon, Apr 27
United Airlines Logo
7:45 am - 10:15 am
DEN
-
SNN
19h 30m
2 stops
United Airlines Logo
12:30 pm - 11:44 pm
SNN
-
DEN
18h 14m
2 stops
$523United Airlines
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
3:40 pm - 10:15 am
DEN
-
SNN
11h 35m
1 stop
United Airlines Logo
12:30 pm - 6:10 pm
SNN
-
DEN
12h 40m
1 stop
$529United Airlines
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
3:40 pm - 10:15 am
DEN
-
SNN
11h 35m
1 stop
United Airlines Logo
12:30 pm - 11:57 pm
SNN
-
DEN
18h 27m
2 stops
$533United Airlines
Mon, Jul 6 - Mon, Aug 24
United Airlines Logo
8:00 am - 7:30 am
DEN
-
SNN
16h 30m
1 stop
United Airlines Logo
9:30 am - 4:50 pm
SNN
-
DEN
14h 20m
1 stop
$539United Airlines
Booking Insights

KAYAK's insights & trends for Denver to Shannon flights

Get data-powered insights and trends into flights from Denver to Shannon to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Denver to Shannon, Clare?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Shannon, Clare departing in April.

What is the cheapest month to fly from Denver to Shannon?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Shannon, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Shannon is August, where tickets cost $537 (return) on average. On the other hand, the most expensive months are June and November, where the average cost of round-trip tickets is $970 and $889 respectively.

How far in advance should I book a flight from Denver to Shannon?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Shannon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Shannon, you should book around 5 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$409
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Denver to Shannon

When to book flights from Denver to Shannon

Are your dates flexible? Find out the best times to travel from Denver to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Shannon

  • What is the cheapest flight from Denver to Shannon?

    In the last 3 days, the lowest price for a flight from Denver to Shannon was $409 for a one-way ticket and $480 for a round-trip.

  • Do I need a passport to fly between Denver and Shannon?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Denver and on arrival in Shannon.

  • Which aircraft models fly most regularly from Denver to Shannon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Shannon?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Denver and Shannon, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Denver to Shannon, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to Shannon are Delta and United Airlines. With an average price for the route of $732 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $765 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Denver to Shannon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Shannon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Shannon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Shannon from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Shannon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Shannon with an airline and back to Denver with another airline. Booking your flights between Denver and SNN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Shannon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Shannon from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Denver to Shannon

 
See real verified KAYAK customer reviews for airlines flying from Denver to Shannon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Shannon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8239 reviews
7.9Comfort
7.8Entertainment
8.1Boarding
8.5Crew
7.2Food
Airline reviews

2+hrs delay without any reason provided and a cramped flight

2.0 MediocreYogendra Kumar, Feb 2026
DTW - MDT
Read more Delta reviews

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Very Very late. Subsequent flights left an hour before ours

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Flight was good but there are way to many announcements for credit cards etc.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

Boarding is always an ordeal. Less dogs on flights. I am highly allergic to dogs and cats. Why are there so many animals these days?

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

Worst experience ever. Flight could not land in Charlotte for what we were told was a ground stop. Had to be diverted to Raleigh to refuel. Strangely during ground stop, our connecting flight had no issue taking off on time causing us to miss our flight. We were told there were no other flights that day to our final destination and that two days out was the next one. The only flights to get us there were from Chicago the next morning. Completely opposite direction but it was a direct flight. So we get flown to Chicago and have to find a hotel in our own dime. The flight in the morning was also delayed. Thankfully only a short time. The non too of all this, our luggage did not arrive by the time we were there. Communication was terrible, through the entire trip. Complete incompetence. Will never fly American again.

Horrible. Got delayed many hours because their pilot wasn't trained for night landing at the airport and a rain delay made it a night landing. We have to wait hours for a qualified crew. They give us 12 dollar meal vouchers but most everything in the airport was closed and definitely more expensive than the vouchers.

I am an AA flyer for a very long time... AA has yet to disappoint.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

Never ontime and always delays. Long waits for customer service and often app doesn’t work

I had a great experience. I would definitely use them again

The pre-check (passport control) for all US flights from Dublin airport is brilliant, meaning these flights come into the domestic airport in the US - it was so quick and easy getting to my hotel once we landed. The plane itself was great, staff were lovely and food was fine.

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The trip was mostly nice, till the last moment when they had some issue with opening the flight door. The flight arrived late by 10 minutes, which was ok-ish, but then we got stuck on the plane for 35 minutes at the bridge and that costed our connection flight to LAX which left with 12+ passengers still on our flight. It added 2 days to our trip home, and we had to make lots of rearrangements to deal with the ripple effects. Don't book a 1+ stop trip with a layover time less than 2 hours.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

The staff was amazing, so friendly and responsive. Check in was tedious as the online service was not available and the desk understaffed. It took a full hour in line to check in. The seats, in economy, where quite spacious until the people in front of us reclined their seats which then meant the seat was touching our knees. The inconsiderate people who were seated in a bulkhead kept their seats reclined for 80% of the flight and then got annoyed when we bumped their seats while shifting positions. It was highly unpleasant..

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

Really appreciated the care, attention and friendliness of cabin crew. Very comfortable, prompt and efficient flight.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

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

Information on your arrival and departure airports