DEN - SNN

$370 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 5/1. 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 24% 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
$713
Typical prices: $789-$562
United Airlines
Sat 9/5Wed 9/16
DEN - SNN • 2 stops
Cheapest one-way
$490
Multiple Airlines
Fri 5/1
DEN - SNN • 3 stops
Top airlines
Cheapest • from $713 (round-trip)
Best reviews • 7.4 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
Cheapest • Avg $900 (round-trip)
Shortest trip • 11h 48m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
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

Sat, Sep 5 - Wed, Sep 16
United Airlines Logo
8:53 pm - 7:30 am
DEN
-
SNN
27h 37m
2 stops
United Airlines Logo
9:30 am - 11:34 pm
SNN
-
DEN
21h 04m
1 stop
$713United Airlines
Sat, Sep 5 - Wed, Sep 16
Delta Logo
11:59 pm - 11:10 am
DEN
-
SNN
28h 11m
1 stop
Delta Logo
1:05 pm - 10:49 pm
SNN
-
DEN
16h 44m
1 stop
$714Delta
Wed, Aug 19 - Sun, Aug 30
KLM Logo
12:20 pm - 11:10 am
DEN
-
SNN
15h 50m
1 stop
KLM Logo
1:05 pm - 10:49 pm
SNN
-
DEN
16h 44m
1 stop
$718KLM
Sat, Sep 5 - Wed, Sep 16
KLM Logo
10:45 am - 11:10 am
DEN
-
SNN
17h 25m
2 stops
KLM Logo
1:05 pm - 5:58 pm
SNN
-
DEN
35h 53m
2 stops
$723KLM
Thu, Sep 3 - Tue, Sep 8
KLM Logo
11:59 pm - 11:10 am
DEN
-
SNN
28h 11m
1 stop
KLM Logo
1:05 pm - 10:49 pm
SNN
-
DEN
16h 44m
1 stop
$724KLM
Thu, Sep 3 - Tue, Sep 8
Delta Logo
11:59 pm - 11:10 am
DEN
-
SNN
28h 11m
1 stop
Delta Logo
1:05 pm - 10:04 am
SNN
-
DEN
27h 59m
2 stops
$728Delta
Tue, Sep 29 - Wed, Oct 7
United Airlines Logo
3:35 pm - 10:15 am
DEN
-
SNN
11h 40m
1 stop
United Airlines Logo
12:30 pm - 7:34 pm
SNN
-
DEN
14h 04m
1 stop
$748United Airlines
Tue, Sep 29 - Wed, Oct 7
United Airlines Logo
3:35 pm - 10:15 am
DEN
-
SNN
11h 40m
1 stop
United Airlines Logo
12:30 pm - 11:10 pm
SNN
-
DEN
17h 40m
2 stops
$753United Airlines
Sat, Sep 12 - Fri, Sep 25
United Airlines Logo
1:40 pm - 10:15 am
DEN
-
SNN
13h 35m
1 stop
United Airlines Logo
12:30 pm - 9:18 pm
SNN
-
DEN
15h 48m
1 stop
$758United Airlines
Wed, May 27 - Wed, Jun 3
KLM Logo
6:19 pm - 11:10 am
DEN
-
SNN
33h 51m
2 stops
KLM Logo
1:05 pm - 5:57 pm
SNN
-
DEN
35h 52m
2 stops
$782KLM
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 September.

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 $536 (return) on average. On the other hand, the most expensive months are June and November, where the average cost of round-trip tickets is $1,014 and $889 respectively.

Good to know

Low seasonDecember
Cheapest flight$490
Best time to beat the crowds with an average 7% 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 $370 for a one-way ticket and $713 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?

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

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

    The two airlines most popular with KAYAK users for flights from Denver to Shannon are United Airlines and American Airlines. With an average price for the route of $790 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $612 and an overall rating of 7.1.

  • 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 3 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.
7.4
United AirlinesOverall score based on 9587 reviews
7.1Entertainment
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

10.0 ExcellentMargaret, Apr 2026
DEN - ORD
Read more United Airlines reviews

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

No seat back entertainment. And app had a hard time getting entertainment loaded.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

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.

Friendly crew is the only nice thing. Seats uncomfortable. Food and snacks horrible. Movies were the same as the first 10 hour flight two weeks before

When I booked my flight a month ago - I selected a seat. That seat was NOT the one I ended up with when I checked into my flight the day before. This is the second time this has occurred. So, I checked my next flight on Wednesday and Thursday and no seat was assigned. Poor, very poor customer service.

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

Incredibly delayed. First delay was due to plane coming in being late. Resulted in 30 minute delay. Boarded and then had multiple mechanical issues. Was on plane for an hour until they told people they could get off if they wanted but couldn't come back. Then gate agent rushed in and said they had lost control of who went off and we would all have to deplane and then get back on. They said flight had not been cancelled. Then while sitting waiting to board again they announced it would take two hours to get new plane and to wait at new gate. New plane arrived, reboarded only to find out that pilots had timed out. Waited for new pilots. In that time one of the flight attendants timed out. Never received food or water while waiting. Was confusing mess as to what was happening. Even flight attendants and gate agents were getting frustrated. Almost 6 hours delayed. Called American to received flight credit but can't get anywhere as Kayak reservation and don't have a ticket number. Reached out to Kayak but never heard back.

American flight was diverted and delayed but app didn’t show that information so I wasn’t able to change my connection until the last min.

Wifi was spotty. Tray table was very dirty when I sat down.

Very disappointing. Flight was delayed by 1.5 hours and food options are very underwhelming even for first class seats (same food given to economy seats)

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

The plane was very creaky and lots of ringing. Plane was dirty and dingy. I couldn't hear the captain's announcements from the flight deck. Not sure if it was the captain or the audio equipment, but good thing there wasn't an emergency where we needed clear instructions. The overhead compartments were clearly full, but the flight crew allowed people to stand in the back with their carry on luggage. Then after everyone boarded, they had to go to the front to gate check their luggage because there was no room for their bags and then they returned to their seats...such a waste of time when clearly the overhead compartments were full when they originally boarded.

The new planes (American Eagle) are beautiful and especially comfortable. The flight attendants are consistently professional and courteous. And, while it may seem inconsequential, the new liquid tube of coffee creamer—in contrast to the powdered coffee creamer—makes all the difference in a cup of coffee.

Even if you wait for connecting passengers you should not be an hour late departing waiting their luggage. Your passengers may have connections in the other end and you harm them.

I’ve never been on a trans-Atlantic (or Pacific) flight where the seats don’t recline—not even a little. I asked my seat mate when BA starting doing this and he said “Oh, a few years ago.” I couldn’t sleep, with my head falling forward waking me continuously, and came off the plane incredibly stiff. I booked a Premium Economy seat to get a more comfortable seat, which was worse than most basic Economy seats I’ve ever booked.

Nice aircraft. Good crew. Delayed departure from Houston, but arrived on time in London. Main thing I don’t like about flying BA is having to transit through security in London Heathrow. A major pain!

The gate agent made me check my carry-on in Denver, even though I've traveled all over taking this case on the plane. Beware folks. Food in Premium Economy was quite good - excellent blanket! Flight attendants on the Heathrow-to-Budapest flight on 3-27-2026 were quite snappy. I got a frown when asked to unscrew the water bottle cap for me (I had a cast on my right arm). Also woke up right when they were handing out biscuits. She had given my rowmates one and was in the process of giving water when I asked for a biscuit. She scolded me and said, "You snooze, you lose". She did give me one, but I thought that comment was uncalled for.

Wish the food and overall service was better. They treat Business class passengers same as economy

WiFi wasn’t available to economy until the end of the flight.

Very good staff members with sincere passion and responsibility in their job.

We paid for Business Class seats, but system did not have us and they were not available.

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

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

Information on your arrival and departure airports