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Cheap flights from Shannon to the United States from £390

SNN — LAX
23 Sep — 30 Sep1
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

Sat 7/1107:50 -
1 stop16h 45m
Mon 16/1118:30 -
1 stop12h 00m
Deal found 21/8£517
Thu 5/1107:50 -
1 stop16h 45m
Sun 8/1118:30 -
1 stop12h 00m
Deal found 24/8£518
Sun 15/1107:50 -
1 stop16h 45m
Sun 22/1121:35 -
1 stop14h 10m
Deal found 20/8£520
Thu 1/1007:30 -
1 stop16h 55m
Sun 11/1021:25 -
1 stop13h 45m
Deal found 20/8£520
Mon 2/1120:05 -
1 stop22h 45m
Wed 25/1118:30 -
1 stop17h 15m
Deal found 23/8£521
Tue 6/1007:30 -
1 stop11h 25m
Wed 21/1017:50 -
1 stop21h 45m
Deal found 24/8£522
Wed 14/1021:15 -
2 stops39h 03m
Sun 18/1021:16 -
2 stops33h 04m
Deal found 19/8£524
Mon 2/1120:05 -
2 stops28h 08m
Sun 22/1115:30 -
2 stops15h 00m
Deal found 23/8£525
Wed 7/1016:50 -
2 stops43h 28m
Sun 11/1015:51 -
2 stops23h 44m
Deal found 23/8£525
Wed 2/921:15 -
2 stops28h 44m
Sun 6/915:30 -
2 stops19h 40m
Deal found 22/8£526
Sat 7/1107:50 -
1 stop16h 45m
Sat 21/1114:28 -
2 stops23h 57m
Deal found 23/8£528
Fri 16/1007:30 -
2 stops20h 59m
Tue 20/1017:50 -
1 stop17h 20m
Deal found 19/8£528

Find flight deals from Shannon to USA

Round-trip from

£517

One-way from

£390

Popular in

July

Cheapest in

November

Average price

£565

Good round-trip deal

£317 or less
British Airways
  • British Airways
  • 7/11-16/11
  • 2 total stops
  • 28h 45m total
  • Shannon to USA
Search Deals
6/9
  • 6/9
  • 2 total stops
  • 53h 45m total
  • Shannon to USA
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£49 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 August 2026
Search Deals
Price to beat on a round-trip flight from Shannon to USA.
Search Deals

Cheapflights Fare Finder

 
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

ShannonNewark

SNN Shannon - EWR Newark

SNNEWR

Shannon

Sun 15/11

07:50-19:35

1 stop16h 45m

Newark

Sun 22/11

21:35-16:45

1 stop14h 10m

£521

ShannonNewark

SNN Shannon - EWR Newark

SNNEWR

Shannon

Thu 3/12

20:05-13:50

1 stop22h 45m

Newark

Mon 7/12

21:35-16:45

1 stop14h 10m

£521

ShannonNewark

SNN Shannon - EWR Newark

SNNEWR

Shannon

Fri 9/10

07:30-19:25

1 stop16h 55m

Newark

Fri 16/10

17:50-15:50

1 stop17h 00m

£522

ShannonNewark

SNN Shannon - EWR Newark

SNNEWR

Shannon

Tue 6/10

16:50-22:25

2 stops34h 35m

Newark

Wed 21/10

21:25-16:10

1 stop13h 45m

£524

ShannonNew York

SNN Shannon - LGA New York LaGuardia

SNNLGA

Shannon

Wed 14/10

21:15-07:18

2 stops39h 03m

New York LaGuardia

Sun 18/10

21:16-11:20

2 stops33h 04m

£524

ShannonNew York

SNN Shannon - LGA New York LaGuardia

SNNLGA

Shannon

Fri 6/11

07:50-19:13

2 stops16h 23m

New York LaGuardia

Thu 19/11

15:30-16:45

2 stops20h 15m

£525

ShannonNew York

SNN Shannon - LGA New York LaGuardia

SNNLGA

Shannon

Thu 3/12

07:50-19:13

2 stops16h 23m

New York LaGuardia

Mon 7/12

15:29-11:30

2 stops15h 01m

£525

ShannonNew York

SNN Shannon - LGA New York LaGuardia

SNNLGA

Shannon

Wed 4/11

17:30-19:13

2 stops30h 43m

New York LaGuardia

Mon 23/11

17:45-19:25

2 stops20h 40m

£525

ShannonNew York

SNN Shannon - LGA New York LaGuardia

SNNLGA

Shannon

Fri 6/11

07:50-19:13

2 stops16h 23m

New York LaGuardia

Wed 25/11

15:30-16:45

2 stops20h 15m

£525

ShannonNewark

SNN Shannon - EWR Newark

SNNEWR

Shannon

Wed 7/10

07:30-22:25

2 stops19h 55m

Newark

Sun 11/10

21:25-16:10

1 stop13h 45m

£525

Flights are sorted by cheapest return flights first.

Deals found on 20/8

Showing 1-10 of 43 resultsSorted by cheapest first
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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

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, January is the cheapest month in which you can book a flight from Shannon, Clare to USA (average of £312). Flying from Shannon, Clare to USA in July is currently the most expensive (average of £595). 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?

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 7% of weekly flights between Shannon and United States have experienced delays in the past year, with the average delay time being 211 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?

Monday 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 3% 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 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
1,722 reviews
Check prices

Overall

7.3

Comfort

7.2

Boarding

7.5

Crew

8.1

Food

6.7

Entertainment

7.0

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
1,722 reviews
Aer Lingus
7.3
Good
1,722 reviews
Check prices

Overall

7.3

Comfort

7.2

Boarding

7.5

Crew

8.1

Food

6.7

Entertainment

7.0

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

  • 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 16h 45m. 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 - New York LaGuardia or Shannon - Newark 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, January is the cheapest month in which you can book a flight from Shannon, Clare to USA (average of £312). Flying from Shannon, Clare to USA in July is currently the most expensive (average of £595). 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

Top airline flying from Shannon to USA

AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£471Average£560FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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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