$307 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 9/15. 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
New Yorknonstop$378
Los Angeles
Los Angeles1 stop$710
Las Vegas
Las Vegas1 stop$644
San Francisco
San Francisco1 stop$701
Miami
Miami1 stop$644
Boston
Boston1 stop$557
Fort Lauderdale
Fort Lauderdale1 stop$644
Denver
Denver1 stop$904
Seattle
Seattle2 stops$869
Houston
Houston2 stops$1,016
San Diego
San Diego2 stops$898
Philadelphia
Philadelphia1 stop$607
New York
New Yorknonstop$378
Los Angeles
Los Angeles1 stop$710
Las Vegas
Las Vegas1 stop$644
San Francisco
San Francisco1 stop$701
Miami
Miami1 stop$644
Boston
Boston1 stop$557
Fort Lauderdale
Fort Lauderdale1 stop$644
Denver
Denver1 stop$904
Seattle
Seattle2 stops$869
Houston
Houston2 stops$1,016
San Diego
San Diego2 stops$898
Philadelphia
Philadelphia1 stop$607

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, Nov 2 - Sun, Nov 8
Aer Lingus Logo
2:00 pm - 4:25 pm
SNN
-
JFK
7h 25mnonstop
Aer Lingus Logo
6:30 pm - 5:55 am
JFK
-
SNN
6h 25mnonstop
$378Aer Lingus
Sun, Nov 15 - Sat, Nov 28
Aer Lingus Logo
2:00 pm - 4:25 pm
SNN
-
JFK
7h 25mnonstop
Aer Lingus Logo
6:30 pm - 5:55 am
JFK
-
SNN
6h 25mnonstop
$416Aer Lingus
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
$510Lufthansa
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
$519Lufthansa
Thu, Aug 27 - Fri, Sep 4
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
$524United Airlines
Thu, Aug 27 - Fri, Sep 4
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
$525United Airlines
Thu, Aug 27 - Fri, Sep 4
Multiple Airlines Logo
7:30 am - 5:00 pm
SNN
-
BOS
14h 30m
1 stop
Multiple Airlines Logo
7:40 pm - 11:20 am
BOS
-
SNN
10h 40m
1 stop
$557Multiple Airlines
Thu, Sep 3 - Wed, Sep 9
Multiple Airlines Logo
7:30 am - 8:05 pm
SNN
-
BOS
17h 35m
1 stop
Multiple Airlines Logo
7:40 pm - 11:20 am
BOS
-
SNN
10h 40m
1 stop
$561Multiple Airlines
Wed, Sep 9 - Sun, Sep 13
Delta Logo
1:05 pm - 11:10 pm
SNN
-
BOS
15h 05m
1 stop
Delta Logo
5:05 pm - 11:10 am
BOS
-
SNN
13h 05m
1 stop
$563Delta
Wed, Sep 9 - Sun, Sep 13
Delta Logo
1:05 pm - 11:10 pm
SNN
-
BOS
15h 05m
1 stop
Delta Logo
5:05 pm - 11:10 am
BOS
-
SNN
13h 05m
1 stop
$564Delta
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 $482 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 $562.

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 $714 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 $809, 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 October, when the average cost of round-trip tickets is $527 and $433 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 Wednesdays if you are looking for the best rates. For your return to Shannon, you’ll find the best rates on Saturdays and the most expensive ones on Tuesdays.

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$307
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Shannon to Orlando

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: Newark $787 one-way - $760 round-trip; New York $647 one-way - $646 round-trip

Reviews of the top airlines 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.
7.8
DeltaOverall score based on 8471 reviews
8.1Boarding
7.8Entertainment
7.8Comfort
8.5Crew
7.2Food
Airline reviews

I missed the flight because the Minneapolis flight was 49 minutes LATE, and the Boise flight LEFT 24 minutes EARLY!

2.0 MediocreAnonymous, Jul 2026
MSP - BOI
Read more Delta reviews

I missed the flight because the Minneapolis flight was 49 minutes LATE, and the Boise flight LEFT 24 minutes EARLY!

Our flight was delayed multiple times and then canceled at almost 1 in the morning. We are a family of 7, traveling with 5 young children. When the flight we were supposed to fly on finally arrived after waiting all day after an international flight into JFK we were informed our flight was in need of a copilot and once they located one we would take off. Then our flight was cancelled because the copilot was over his hours and they couldn't locate another. They knew before taking off from the previous location that the copilot would be unable to fly. They could have communicated the cancellation of the flight hours in advance. Once they cancelled and the pilot and copilot got off the flight, they joked about it. While there are understandably limits on flight time for pilots, they can still handle the situation in a professional manner. The late cancellation resulted in angry passengers that required police intervention in the airport. It also occurred so late and included other delta flights that after trying 15 different hotels, we were unable to secure a hotel room, they were all booked. No rental cars were available in the area either. We ended up staying in the airport with the 5 children. We made it home after 54 hours of travel with maybe 2 hours of sleep. Our luggage was lost and had to be claimed at the airport at our final destination. This was the worst trip I have ever taken and the worst airport I have ever spent time in. I met two individuals in the airport that were kind and helpful; Tonya Maingot Williams from the can we hel desk that worked to help get us rebooked and home, as well as provide us with care bags for our extended stay in the airport. The other individual was Danielle from Buffalo Wild Wings that was so very kind when we found a place to take our family we were traveling with to eat, all 11 of us and we were able to sit down together to enjoy a meal during such a stressful time.

My flight home from Knoxville, TN, included a layover in Atlanta. I boarded the aircraft in Zone 5 and although there was limited overhead space, I was able to put my 'backpack' style roller-bag above my seat. Unfortunately, due to continued bad weather, we had to deplane. There were many people who would have missed their connection, so they rebooked. When we were re-boarding, the gate agent welcomed zone 5 and then made an announcement: All roller-bags for zone 5 passengers and higher will need to be gate checked. I promptly pushed the telescoping handle in and held my bag like a backpack. I was able to bring it on board, which was a relief. Upon entering the aircraft it became apparent that there was easily 40% open overhead space. There were audible signs of angry passengers who felt duped into checking their bags when in fact there were noticeably LESS passengers on the aircraft and TONS of overhead space. I'm not sure what kinds of parameters are used to determine when to cut off roller-bags from being brought on board, but it seemed deceptive and underhanded to have so many people get stuck checking their bags when clearly there was ample room for at least one more zone.

Flight was delayed and then "they did not have time to load food". No snack or drink at all for 1.5 how flight. Somebody wasn't prepared.

No Internet, no backseat screen, no nothing. I bought a Delta ticket and ended up on American Airlines. How did that happen?

It is usually very pleasant. Good service for the price, international flights are even better

We never made it on this flight because we missed our connection due to o delayed flight from Jackson.

We had a terrible experience. The flight was delayed several hours, so we missed our connection. We were told to wait at the airport. At around 11:00 pm, the flight was cancelled. There were no available seats out of Jackson for the next two days. Fortunately, we had the foresight to rebook on United for the next day. However, we had to spend a long day at the airport and an overnight at a mediocre hotel. It was a miserable way to spend part of our vacation. We also sacrificed our $450 deposit on our California hotel because we could not get there.

delta wifi wouldn’t work boarding was not in sequence flight crew spent most of their time on the phone with the lights off pretending no one wanted or needed anything

The food was good. I ate gnocchi with marinara sauce and cheese, salted caramel tiramisu. And later in the trip cheese calzone. I watched 3 movies. The selection is really good. Have new and old movies. The flight attendances were nice and cordially. Overall the 6 hours trip was really pleasant ☺️. Planning the next trip.

This was a great flight. I love the way they had general boarding board from the back first by seat row and in general the flight was very comfortable. The seats were actually comfy, and the food served was surprisingly good.

A seat was broken There was a delay of 45min A checked bag was missing in Boston

The service was some of the worst I have experienced on an international flight. The service was rude, the quality of the food was very low. The speed of service was insanely quick. You couldn’t finish your pretzels before the meal came before the coffee came before trash collection came. Then they never came back for 5 hours. They rushed everything so they could get it over with.

A special shout-out to one of the check-in staff at DUB yesterday noon. We had to use the "Closing Flights" counter and we met, hands down, the most efficient person - able to resolve several issues in the matter of minutes, while remaining polite and calming everyone down. Great job, Aer Lingus!

Everything was great!! I had no problems!! I would fly Aer Lingus again! 🥰

From Rome to Dublin if you want any refreshments you have to pay for them, Not used to this as we typically get soft drinks and a little snack on a 3hour flight in the US.

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.

Economy seats a bit small but other than that it was all good.

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Plane could have been cleaner. There were many crumbs and crud around the seat mounts.

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

Information on your arrival and departure airports