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Cheap flights from Shannon to the United States from £256

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — LAX
14 Aug — 21 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Shannon to USA

Enter your travel dates to find the best prices.

Cheapest flights from Shannon to USA
Explore the most affordable flight options available from Shannon to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2026.

Thu 27/812:30
SNN
-
EWR
Nonstop7h 25m
United Airlines
Fri 4/922:50
EWR
-
SNN
Nonstop6h 25m
United Airlines
Deal found 13/7£392
Tue 1/909:30
SNN
-
LGA
1 stop15h 55m
United Airlines
Fri 11/915:25
LGA
-
SNN
1 stop11h 05m
United Airlines
Deal found 10/7£397
Sun 13/909:30
SNN
-
EWR
2 stops26h 59m
United Airlines
Wed 23/922:50
EWR
-
SNN
Nonstop6h 25m
United Airlines
Deal found 11/7£404
Sun 15/1107:50
SNN
-
EWR
1 stop16h 45m
British Airways
Sun 22/1121:35
EWR
-
SNN
1 stop14h 10m
British Airways
Deal found 13/7£505
Fri 16/1007:30
SNN
-
EWR
1 stop16h 55m
British Airways
Tue 20/1021:25
EWR
-
SNN
1 stop13h 45m
British Airways
Deal found 14/7£505
Fri 4/907:30
SNN
-
LGA
2 stops33h 33m
British Airways
Mon 7/917:59
LGA
-
SNN
2 stops17h 11m
British Airways
Deal found 13/7£508
Wed 23/916:50
SNN
-
EWR
2 stops34h 35m
British Airways
Sun 27/921:25
EWR
-
SNN
1 stop13h 45m
British Airways
Deal found 13/7£509
Thu 10/916:50
SNN
-
LGA
2 stops33h 09m
British Airways
Mon 14/915:29
LGA
-
SNN
2 stops19h 41m
British Airways
Deal found 12/7£510
Thu 27/807:30
SNN
-
LGA
2 stops18h 29m
British Airways
Sun 30/817:59
LGA
-
SNN
2 stops12h 21m
British Airways
Deal found 10/7£511
Thu 22/1007:30
SNN
-
LGA
2 stops17h 29m
British Airways
Mon 2/1115:50
LGA
-
SNN
2 stops14h 40m
British Airways
Deal found 12/7£520
Tue 25/813:45
SNN
-
LGA
1 stop10h 34m
Multiple Airlines
Mon 31/808:30
LGA
-
SNN
1 stop15h 55m
Multiple Airlines
Deal found 10/7£521
Tue 25/809:30
SNN
-
LGA
1 stop11h 49m
United Airlines
Tue 1/914:25
LGA
-
SNN
1 stop12h 05m
United Airlines
Deal found 11/7£522

Find flight deals from Shannon to USA

Keep the following information in mind while searching for Shannon to USA flight deals. Data was last updated 15 July 2026.

Round-trip from

£392

One-way from

£256

Popular in

July

Cheapest in

November

Average price

£629
United Airlines
  • United Airlines
  • 27/8-4/9
  • Nonstop
  • 13h 50m total
  • Shannon to USA
Search Deals
15/9
  • 15/9
  • 2 total stops
  • 33h 55m total
  • Shannon to USA
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£61 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Shannon to USA that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 July 2026.
Use the filters below to find and compare flights from Shannon to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Tue 6/10

12:30-14:55

Nonstop7h 25m

Newark

Wed 21/10

22:50-10:15

Nonstop6h 25m

£392

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Mon 31/8

09:30-21:56

2 stops17h 26m

Newark

Mon 7/9

13:00-07:30

2 stops13h 30m

£397

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Tue 1/12

20:05-13:50

1 stop22h 45m

Newark

Tue 8/12

21:35-16:45

1 stop14h 10m

£506

ShannonNew York

SNN - LGA

SNNLGA

Shannon

Fri 4/9

07:30-12:03

2 stops33h 33m

New York LaGuardia

Mon 7/9

17:59-16:10

2 stops17h 11m

£508

ShannonNew York

SNN - LGA

SNNLGA

Shannon

Thu 10/9

16:50-20:59

2 stops33h 09m

New York LaGuardia

Mon 14/9

15:29-16:10

2 stops19h 41m

£510

ShannonNew York

SNN - LGA

SNNLGA

Shannon

Thu 27/8

07:30-20:59

2 stops18h 29m

New York LaGuardia

Sun 30/8

17:59-11:20

2 stops12h 21m

£511

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Thu 27/8

16:50-13:55

1 stop26h 05m

Newark

Fri 4/9

14:20-15:50

2 stops20h 30m

£513

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Wed 26/8

12:30-14:55

Nonstop7h 25m

Newark

Wed 2/9

22:50-10:15

Nonstop6h 25m

£516

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Mon 24/8

21:15-23:59

2 stops31h 44m

Newark

Sat 12/9

17:50-11:20

1 stop12h 30m

£516

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Mon 24/8

21:15-23:59

2 stops31h 44m

Newark

Wed 9/9

17:50-20:35

1 stop21h 45m

£516

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Showing 1-10 of 49 resultsSorted by cheapest first
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5

Best time to book a flight from Shannon to USA

Have a flexible travel schedule? Discover the best time to fly to USA from Shannon with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Shannon, Clare to USA?

Currently, June is the cheapest month in which you can book a flight from Shannon, Clare to USA (average of £279). Flying from Shannon, Clare to USA in February is currently the most expensive (average of £394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SNN to US?

Find hourly flight availability from Shannon to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 July 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Shannon, Clare to USA as you normally would.

How often are flights from Shannon to the United States delayed?

About 6% of weekly flights between Shannon and United States have experienced delays in the past year, with the average delay time being 187 minutes.

What is the most punctual flight time for Shannon to the United States flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Shannon to the United States flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 2% of flights being delayed.

How far ahead should I book a flight from Shannon, Clare to USA?

The best time to book flights from Shannon, Clare to USA is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to USA. Reviews last updated 15 July 2026.
Get a feel of what it's like to fly with Aer Lingus from Shannon to the United States by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,666 reviews
Check prices

Boarding

7.4

Overall

7.3

Crew

8.1

Entertainment

7.0

Food

6.6

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Aer Lingus
7.3
Good
1,666 reviews
Aer Lingus
7.3
Good
1,666 reviews
Check prices

Boarding

7.4

Overall

7.3

Crew

8.1

Entertainment

7.0

Food

6.6

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Related info for your journey

Find useful and relevant information for your journey from Shannon to USA. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Shannon to United States?

    Most people fly from Shannon (SNN) if they book a flight from Shannon to United States. Shannon is conveniently located just 2.1 mi from Shannon’s city center.

  • How long is the flight from Shannon, Clare to USA?

    Departing from Shannon, Clare to USA will take you 7h 25m. There are 3085 mi between Shannon, Clare and USA. This flight may include one or multiple stops.

  • What are the most popular routes from Shannon, Clare to USA?

    When deciding which route to take from Shannon, Clare to USA consider Shannon - Providence-TFGreen, Shannon - Newark or Shannon - Austin Bergstrom as they are the most popular.

  • Can I find deals for flights from Shannon to USA that include hotel bookings?

    Yes. In addition to deals on Shannon to USA flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Shannon to USA?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Shannon to USA.

  • Can I find deals for business class flights from Shannon to USA?

    Yes. Cheapflights offers flight deals from Shannon to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Shannon, Clare to USA?

    Currently, June is the cheapest month in which you can book a flight from Shannon, Clare to USA (average of £279). Flying from Shannon, Clare to USA in February is currently the most expensive (average of £394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Shannon to USA

Discover the top airline that operate flights from Shannon to USA. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£470Average£572FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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How does Cheapflights help users find flights from Shannon to USA?

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Can Cheapflights find flights from Shannon to USA with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Shannon to USA, users can toggle the no change fees filter when performing a flight search.

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