$321 Find Cheap Flights from Shannon to the United States - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Shannon to the United States departing on 10/20. 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

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Cheap Flights from Shannon to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
Newarknonstop$513
Los Angeles
Los Angeles1 stop$709
Las Vegas
Las Vegas1 stop$761
San Francisco
San Francisco1 stop$700
Miami
Miami1 stop$652
Boston
Boston2 stops$558
Fort Lauderdale
Fort Lauderdale1 stop$837
Denver
Denver2 stops$943
Seattle
Seattle1 stop$850
Houston
Houston2 stops$1,043
San Diego
San Diego1 stop$1,066
Philadelphia
Philadelphia1 stop$618
New York
Newarknonstop$513
Los Angeles
Los Angeles1 stop$709
Las Vegas
Las Vegas1 stop$761
San Francisco
San Francisco1 stop$700
Miami
Miami1 stop$652
Boston
Boston2 stops$558
Fort Lauderdale
Fort Lauderdale1 stop$837
Denver
Denver2 stops$943
Seattle
Seattle1 stop$850
Houston
Houston2 stops$1,043
San Diego
San Diego1 stop$1,066
Philadelphia
Philadelphia1 stop$618

Book Cheap Shannon to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Shannon to the United States 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 Shannon to the United States

Mon, Sep 28 - Mon, Oct 12
Multiple Airlines Logo
6:20 am - 6:25 pm
SNN
-
MCO
17h 05m
1 stop
Multiple Airlines Logo
8:30 pm - 9:35 pm
MCO
-
SNN
20h 05m
1 stop
$483Multiple Airlines
Sun, Sep 27 - Mon, Oct 12
Multiple Airlines Logo
7:30 am - 6:25 pm
SNN
-
MCO
15h 55m
1 stop
Multiple Airlines Logo
8:30 pm - 9:35 pm
MCO
-
SNN
20h 05m
1 stop
$504Multiple Airlines
Thu, Sep 10 - Mon, Sep 21
Lufthansa Logo
12:30 pm - 2:55 pm
SNN
-
EWR
7h 25mnonstop
Lufthansa Logo
10:50 pm - 10:15 am
EWR
-
SNN
6h 25mnonstop
$513Lufthansa
Thu, Aug 27 - Fri, Sep 4
Lufthansa Logo
12:30 pm - 2:55 pm
SNN
-
EWR
7h 25mnonstop
Lufthansa Logo
10:50 pm - 10:15 am
EWR
-
SNN
6h 25mnonstop
$514Lufthansa
Thu, Aug 27 - Thu, Sep 3
Delta Logo
1:05 pm - 3:30 pm
SNN
-
JFK
7h 25mnonstop
Delta Logo
11:55 pm - 11:10 am
JFK
-
SNN
6h 15mnonstop
$519Delta
Tue, Sep 8 - Sun, Sep 20
United Airlines Logo
12:30 pm - 2:55 pm
SNN
-
EWR
7h 25mnonstop
United Airlines Logo
10:50 pm - 10:15 am
EWR
-
SNN
6h 25mnonstop
$519United Airlines
Thu, Sep 10 - Sat, Sep 19
United Airlines Logo
12:30 pm - 2:55 pm
SNN
-
EWR
7h 25mnonstop
United Airlines Logo
10:50 pm - 10:15 am
EWR
-
SNN
6h 25mnonstop
$520United Airlines
Thu, Sep 3 - Sat, Sep 12
KLM Logo
1:05 pm - 3:44 pm
SNN
-
JFK
7h 39mnonstop
KLM Logo
11:55 pm - 11:10 am
JFK
-
SNN
6h 15mnonstop
$520KLM
Thu, Aug 27 - Mon, Aug 31
Delta Logo
1:05 pm - 3:30 pm
SNN
-
JFK
7h 25mnonstop
Delta Logo
11:55 pm - 11:10 am
JFK
-
SNN
6h 15mnonstop
$522Delta
Thu, Sep 3 - Wed, Sep 9
KLM Logo
1:05 pm - 4:13 pm
SNN
-
BOS
32h 08m
1 stop
KLM Logo
9:20 pm - 11:10 am
BOS
-
SNN
8h 50m
1 stop
$559KLM
Booking Insights

KAYAK's insights & trends for Shannon to the United States flights

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

What is the cheapest Shannon to the United States flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United States from Shannon found in the last 5 days was to New York, at $522 round-trip. The most popular route is from Shannon (SNN) to New York John F Kennedy Intl Airport (JFK), and the cheapest round-trip airline ticket found on this route in the last 5 days was $522.

What is the cheapest time of day to fly to the United States?

The average price for all round-trip flights from Shannon to the United States depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to the United States is generally in the afternoon, when round-trip flights cost $650 on average. The most expensive time of day to fly to the United States is generally in the morning, which is peak travel time and where the average cost of a ticket is $829.

Can I save money by flying with a layover from Shannon to the United States?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $759, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Shannon to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Shannon to the United States, 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 Shannon to the United States is June, when tickets cost $373 (return) on average. On the other hand, the most expensive months are February and May, when the average cost of round-trip tickets is $527 and $430 respectively.

What’s the cheapest day of the week to fly from Shannon to United States?

The average price of all round-trip flights from Shannon to the United States clicked on KAYAK for each day over the last 12 months.

When flying from Shannon to United States, you should consider leaving on a Thursday and avoid Saturdays if you are looking for the best rates. For your return to Shannon, you’ll find the best rates on Sundays and the most expensive ones on Thursdays.

How far in advance should I book a flight from Shannon to the United States?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Shannon to the United States, 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 Shannon to the United States, you should book around 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$321
Best time to beat the crowds but there is an average 18% increase in price.
Flight from Shannon to Boston

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Shannon to the United States?

    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 Shannon to the United States.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Shannon to the United States 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 Shannon to the United States?

    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 from Shannon to the United States with an airline and back with another airline.

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

    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 from Shannon to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Shannon to the following destinations at these prices or less: New York $557 one-way - $539 round-trip

Reviews of the top airline flying from Shannon to the United States

 
Need help choosing which airline to fly with from Shannon to the United States? 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.
7.3
Aer LingusOverall score based on 1604 reviews
7.0Entertainment
8.1Crew
7.2Comfort
6.7Food
7.4Boarding
Airline reviews

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

8.0 ExcellentTim, Jun 2026
DUB - LAX
Read more Aer Lingus reviews

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

Vegetarian food option was very poor. Effectively, overcooked rice ("risotto"). Zero protein which is always disappointing with no vegetables and poorly seasoned. Basically had lots of carbs on 6-hour flight. Not acceptable for business class in 2026. Flight was otherwise very good.

Small plane. Tight seating . What can one say except that it was fast!

I sat in the first row behind first class. There was plenty of legroom. The entertainment was great. I saw two excellent movies and one episode of a sitcom. Also enjoyed the flight tracker.

OK overall. Flight was delayed Crew on flight was good

On time, only a little turbulence, very competent and caring attendants. Clear information.

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

The crew was friendly. The plane was comfortable. In-flight wifi didn't work well at all. The ride was quite turbulent but understandable given the weather.

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

Everything you need to know for your flight from Shannon to the United States

Information on your arrival and departure airports