DEN - SNN

$247 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 4/19. 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
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Everything you should know

Cheapest round-trip
$400
Overall average: $723
British Airways
Sun 4/19Thu 4/30
DEN - SNN • 2 stops
Cheapest one-way
$247
American Airlines
Sun 4/19
DEN - SNN • 1 stop
When to travel
February
Cheapest • 31% 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 19 - Thu, Apr 30
British Airways Logo
10:36 am - 11:20 am
DEN
-
SNN
17h 44m
2 stops
British Airways Logo
9:15 pm - 6:15 pm
SNN
-
DEN
28h 00m
2 stops
$400British Airways
Sun, Apr 19 - Thu, Apr 30
British Airways Logo
6:40 pm - 8:35 pm
DEN
-
SNN
18h 55m
1 stop
British Airways Logo
4:55 pm - 4:30 pm
SNN
-
DEN
30h 35m
1 stop
$402British Airways
Sun, Apr 19 - Thu, Apr 30
British Airways Logo
6:40 pm - 4:10 pm
DEN
-
SNN
14h 30m
1 stop
British Airways Logo
9:15 pm - 6:15 pm
SNN
-
DEN
28h 00m
2 stops
$403British Airways
Sun, May 3 - Wed, May 13
British Airways Logo
6:30 pm - 11:20 am
DEN
-
SNN
33h 50m
2 stops
British Airways Logo
7:40 am - 6:15 pm
SNN
-
DEN
17h 35m
2 stops
$411British Airways
Sun, May 3 - Wed, May 13
British Airways Logo
5:44 pm - 4:10 pm
DEN
-
SNN
39h 26m
2 stops
British Airways Logo
7:40 am - 4:30 pm
SNN
-
DEN
15h 50m
1 stop
$415British Airways
Tue, Mar 17 - Tue, Mar 31
British Airways Logo
6:25 pm - 7:25 pm
DEN
-
SNN
19h 00m
1 stop
British Airways Logo
9:15 pm - 4:30 pm
SNN
-
DEN
26h 15m
1 stop
$423British Airways
Mon, Jan 26 - Tue, Feb 10
British Airways Logo
5:25 pm - 4:45 pm
DEN
-
SNN
16h 20m
1 stop
British Airways Logo
7:50 am - 3:30 pm
SNN
-
DEN
14h 40m
1 stop
$424British Airways
Tue, Mar 17 - Tue, Mar 31
British Airways Logo
9:10 am - 7:25 pm
DEN
-
SNN
28h 15m
2 stops
British Airways Logo
9:15 pm - 4:30 pm
SNN
-
DEN
26h 15m
1 stop
$427British Airways
Tue, Mar 17 - Mon, Mar 30
British Airways Logo
6:25 pm - 4:45 pm
DEN
-
SNN
16h 20m
1 stop
British Airways Logo
9:15 pm - 10:40 pm
SNN
-
DEN
32h 25m
2 stops
$433British Airways
Tue, Mar 17 - Tue, Mar 31
British Airways Logo
9:10 am - 11:30 am
DEN
-
SNN
20h 20m
2 stops
British Airways Logo
9:15 pm - 3:53 pm
SNN
-
DEN
25h 38m
2 stops
$438British Airways
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.

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 February, where tickets cost $495 (return) on average. On the other hand, the most expensive months are June and November, where the average cost of round-trip tickets is $984 and $889 respectively.

Good to know

Low seasonFebruary
Cheapest flight$247
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 9% 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 $247 for a one-way ticket and $400 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 $780 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 4 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 8049 reviews
7.8Entertainment
7.9Comfort
7.2Food
8.5Crew
8.1Boarding
Airline reviews

The entertainment screens were not working and there was no air condition the entire flight. Very uncomfortable.

4.0 OkayKyle, Jan 2026
LGA - DFW
Read more Delta reviews

The entertainment screens were not working and there was no air condition the entire flight. Very uncomfortable.

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

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.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Flight delay and multiple gate changes including a change near boarding time to another terminal, which in DFW is a pain. Pre-boarding delay and also a further delay on the ground after boarding. About an hour and a half total delay.

On the plus side, crew was attentive, drinks were cold, and in-flight entertainment selection was better than some other airlines. On the negative aide, Plane was delayed almost an hour, either no announcements from the gate crew. Biscoff cookies are gross, appreciate airlines that give a choice. Also, crew had no personality or enthusiasm at all.

Little warm on the plane and delayed for an hour

Tell the crew (when boarding) to yell at the imbeciles blocking us from walking up to scan. I promise everyone crowds around and half of us (most the time I’m group 4) have to push our way through. Your staff is awesome, the public - not so much-

Bags took over and hour to come out. Delays due to wind caused rebooking.

The flight was good. We had to spend almost an hour on the tarmac when we arrived in Dallas. Waiting for a gate. What’s the point of arriving early if you have no gate to park at?

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

UGH I HAD TO MISS MY FIRST FLIGHT TO TAMPA CAUSE OF THE 10 MINUTE DELAY OF THE ORLANDO TO MIAMI ONE SO THEY HAD ME GET ANOTHER TICKET. I AM NOT HAPPY AT ALL BECAUSE IT MADE ME MISS MY CONNECTING FLIGHT FROM TAMPA TO LONDON AND FORCED ME TO MISS A DAY AT MY ROOM IN THE UK.

Wish they didnt delay off-boarding for 10 minutes so i could connect to my flight from miami to tampa

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..

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

I was not admitted to the flight!!! I need a refund for this

Well, I think we left close to on time. Crew was “eh”.

This is a bit of a rant, but I'll try to keep it civil. The flight was delayed for 2 hours with almost ZERO updates from agents. Just "there's technical issues, we don't know if or when it'll be resolved" once an hour maybe? And the gate signs, and app never updated to show the delay until it was finally resolved. So when I called Aer Lingus to see if I could rebook, I had literally the dumbest conversation with the person on the phone there where he says "It's showing your flight departed at 11:10. So it's already departed!", where I responded, "Well, it's 12:45 and I'm on the phone with you, standing in the airport, staring at the plane. So...I'm not sure what your system is saying, but we aren't in the air right now.". He said "Nothing I can do. Since it doesn't show delayed in my system, you would be charged to reschedule." Once we finally departed 2 hours late, things were going smoothly as I would expect, except in another very strange way. The stewardesses were rolling the cart down the aisle offering drinks and I asked for a water, to which they said "Sure, you can buy a bottle". I'm not sure if this is an Aer Lingus thing. Maybe something I'd expect from Ryan Air, but for a 3 hour international flight, to not have complimentary water available for customers is an absolute first, in 15 years of flying for me. I'm not upset with the plane staff at all. They were very friendly, but Aer Lingus' policies, how they handled the delay, and the unbelievable conversation with the customer service representative, leaves a lot to be desired in those areas. Also, I'm not upset about the delay. Things happen. Technical issues. But this is a place where airlines really need to clearly communicate with their customers. They also changed gates from 12N to 13N and there was no notification on any app, or announcement over the PA. End of rant. I hope they get some feedback on how to improve communication, because otherwise, they were great. And the second leg of my trip was incredibly smooth - no nickle and diming water, no communication issues. Very professional and efficient and even landed early

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

Information on your arrival and departure airports