$309 Find Cheap Flights from Shannon to the United States

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 2/8. 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$452
Los Angeles
Los Angeles1 stop$664
Las Vegas
Las Vegas1 stop$620
Miami
Miami2 stops$613
San Francisco
San Francisco1 stop$690
Boston
Bostonnonstop$426
Denver
Denver1 stop$820
Seattle
Seattle1 stop$658
Fort Lauderdale
Fort Lauderdale2 stops$627
Houston
Houston2 stops$812
San Diego
San Diego1 stop$804
Philadelphia
Philadelphia1 stop$600
New York
New Yorknonstop$452
Los Angeles
Los Angeles1 stop$664
Las Vegas
Las Vegas1 stop$620
Miami
Miami2 stops$613
San Francisco
San Francisco1 stop$690
Boston
Bostonnonstop$426
Denver
Denver1 stop$820
Seattle
Seattle1 stop$658
Fort Lauderdale
Fort Lauderdale2 stops$627
Houston
Houston2 stops$812
San Diego
San Diego1 stop$804
Philadelphia
Philadelphia1 stop$600

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

Fri, Jan 16 - Tue, Feb 3
Aer Lingus Logo
2:45 pm - 4:50 pmSNN-BOS
7h 05mnonstop
Aer Lingus Logo
7:25 pm - 6:20 amBOS-SNN
5h 55mnonstop
$426Aer Lingus
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Fri, Nov 14 - Tue, Nov 18
Aer Lingus Logo
2:00 pm - 4:25 pmSNN-JFK
7h 25mnonstop
Aer Lingus Logo
6:30 pm - 5:55 amJFK-SNN
6h 25mnonstop
$426Aer Lingus
Find Deal
Thu, Feb 12 - Mon, Feb 16
British Airways Logo
7:50 am - 3:55 pmSNN-BOS
13h 05m1 stop
British Airways Logo
7:25 pm - 11:30 amBOS-SNN
11h 05m1 stop
$517British Airways
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Thu, Nov 13 - Mon, Nov 17
British Airways Logo
7:50 am - 8:05 pmSNN-JFK
17h 15m1 stop
British Airways Logo
9:50 pm - 4:45 pmJFK-SNN
13h 55m1 stop
$525British Airways
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Thu, Jan 8 - Wed, Jan 14
Multiple Airlines Logo
9:05 am - 12:25 pmSNN-JFK
32h 20m2 stops
Multiple Airlines Logo
6:05 pm - 2:40 pmJFK-SNN
15h 35m1 stop
$527Multiple Airlines
Find Deal
Fri, Jan 16 - Tue, Feb 3
Multiple Airlines Logo
2:40 pm - 10:20 amSNN-BOS
48h 40m2 stops
Multiple Airlines Logo
7:25 pm - 6:20 amBOS-SNN
5h 55mnonstop
$533Multiple Airlines
Find Deal
Mon, Nov 10 - Tue, Nov 18
American Airlines Logo
7:50 am - 6:40 pmSNN-JFK
15h 50m1 stop
American Airlines Logo
6:25 pm - 11:30 amJFK-SNN
12h 05m1 stop
$575American Airlines
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Thu, Nov 13 - Thu, Nov 20
American Airlines Logo
7:50 am - 4:10 pmSNN-BOS
13h 20m1 stop
American Airlines Logo
11:25 am - 11:30 amBOS-SNN
19h 05m2 stops
$576American Airlines
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Mon, Apr 20 - Tue, Apr 28
United Airlines Logo
12:30 pm - 5:25 pmSNN-BOS
9h 55m1 stop
United Airlines Logo
8:00 pm - 10:15 amBOS-SNN
9h 15m1 stop
$580United Airlines
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Fri, Apr 3 - Wed, Apr 8
United Airlines Logo
12:30 pm - 6:13 pmSNN-BOS
10h 43m1 stop
United Airlines Logo
8:00 pm - 10:15 amBOS-SNN
9h 15m1 stop
$589United Airlines
Find Deal
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 72 hours was to Boston, at $416 round-trip. The most popular route is from Shannon (SNN) to Boston (BOS), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $416.

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 $646, 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 May, when tickets cost $529 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is $704 and $690 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 Fridays if you are looking for the best rates. For your return to Shannon, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

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 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$293
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Shannon to New York John F Kennedy Airport

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.

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

    The cheapest time of day to fly to the United States is generally in the afternoon, when round-trip flights cost $617 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 $688.

Reviews of the top 3 airlines serving 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.
7.9
DeltaOverall score based on 7998 reviews
8.2Boarding
7.9Comfort
8.5Crew
7.3Food
7.9Entertainment
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

Seats comfortable, service and food very mediocre, staff not very attentive, worse than many other our flights with Delta.

Overall good experience; however, there was one flight attendant who was rather rough compared to everyone else. Everything else was good: entertainment, food. Delta keeps on delivering! Thank you!

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Flight left on time. Boarding was easy. Arrived to EWR 30 mins early. Luggage was deplaned in good time. Overall a very good experience.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Excellent all round, first time flying United. App is very helpful.

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

They out me in the baby row so I was surrounded by toddlers, they also did not send my luggage and was not able to book my connecting flight

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

Dinner was fabulous. Would have enjoyed a wine with it. None offered... for sale??? Breakfast was disappointing but adequate amount of food.

Excellent flight and crew. Boarding at Dublin Airport was a very difficult trying to find the right gate.

Dublin airport is big and US Customs and Immigration screening officers are is part of the process there. This eliminates screening upon arrival to US, however should be taken into consideration when playing your transfer. After all, pleasant experience enhanced by draft Guinness and Irish coffee at the buffet area near the gate. We loved boarding by the row, back of the airplane first.

There was a mixup with our tickets. They said they did not receive payment for them but yet we had seat assignments. We had to purchase last-minute tickets which cost us three times as much. that’s why they got a rated of a one.

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