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Cheap flights from Shannon to the United States from £435

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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — LAX
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 13 November 2025.

Mon 8/1217:30SNN - PHL
1 stop24h 45mBritish Airways
Sun 14/1218:35PHL - SNN
1 stop11h 55mBritish Airways
Deal found 11/11£461
Thu 4/1217:30SNN - PHL
1 stop24h 45mBritish Airways
Mon 8/1219:50PHL - SNN
1 stop10h 40mBritish Airways
Deal found 10/11£463
Thu 4/1207:50SNN - LGA
2 stops17h 36mBritish Airways
Thu 11/1216:00LGA - SNN
2 stops22h 25mBritish Airways
Deal found 12/11£473
Sun 7/1217:30SNN - PHL
1 stop27h 45mBritish Airways
Fri 12/1219:50PHL - SNN
1 stop10h 40mBritish Airways
Deal found 12/11£576
Thu 4/1207:50SNN - EWR
2 stops17h 39mBritish Airways
Thu 11/1218:30EWR - SNN
1 stop12h 00mBritish Airways
Deal found 12/11£592
Thu 18/1207:50SNN - PHX
2 stops19h 26mBritish Airways
Thu 8/120:25PHX - SNN
1 stop13h 20mBritish Airways
Deal found 10/11£611
Tue 11/1120:05SNN - LGA
2 stops29h 19mBritish Airways
Sat 15/1117:00LGA - SNN
2 stops13h 30mBritish Airways
Deal found 11/11£640
Wed 12/1107:50SNN - LGA
2 stops17h 34mBritish Airways
Sat 15/1117:00LGA - SNN
2 stops13h 30mBritish Airways
Deal found 10/11£656
Fri 26/1207:50SNN - AUS
1 stop15h 00mBritish Airways
Mon 5/114:24AUS - SNN
2 stops15h 06mBritish Airways
Deal found 11/11£673
Sun 21/1207:50SNN - EWR
1 stop16h 45mBritish Airways
Wed 31/1221:35EWR - SNN
1 stop14h 10mBritish Airways
Deal found 11/11£677
Thu 27/1107:50SNN - EWR
1 stop16h 45mBritish Airways
Sat 6/1218:30EWR - SNN
1 stop12h 00mBritish Airways
Deal found 12/11£681
Mon 10/1120:05SNN - LGA
2 stops28h 42mBritish Airways
Fri 14/1119:15LGA - SNN
2 stops15h 30mBritish Airways
Deal found 10/11£688

Cheap flight deals from Shannon to USA

Keep the following information in mind while searching for Shannon to USA flight deals. Data was last updated 13 November 2025.

Round-trip from

£461

One-way from

£435

Popular in

August

Cheapest in

May

Average price

£414
British Airways
  • British Airways
  • 8/12-14/12
  • 2 total stops
  • 36h 40m total
  • Shannon to USA
Search Deals
Aer Lingus
  • Aer Lingus
  • 7/3
  • 1 total stop
  • 17h 30m total
  • Shannon to USA
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£17 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 13 November 2025.
Use the filters below to find and compare flights from Shannon to the United States that are best for you.

Fly from

Shannon

Fly to

USA

Route

Depart

Return

Price

ShannonPhiladelphia

SNN - PHL

SNNPHL

Shannon

Mon 8/12

17:30-13:15

1 stop24h 45m

Philadelphia

Sun 14/12

18:35-11:30

1 stop11h 55m

£461

ShannonPhiladelphia

SNN - PHL

SNNPHL

Shannon

Thu 4/12

17:30-13:15

1 stop24h 45m

Philadelphia

Mon 8/12

19:50-11:30

1 stop10h 40m

£463

ShannonNew York

SNN - LGA

SNNLGA

Shannon

Thu 4/12

07:50-20:26

2 stops17h 36m

New York LaGuardia

Thu 11/12

16:00-19:25

2 stops22h 25m

£473

ShannonNew York

SNN - LGA

SNNLGA

Shannon

Sat 7/3

07:50-23:29

2 stops20h 39m

New York LaGuardia

Wed 11/3

19:59-19:25

2 stops43h 26m

£484

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Fri 13/3

07:50-20:35

1 stop16h 45m

Newark

Wed 18/3

22:35-16:45

1 stop14h 10m

£501

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Wed 18/2

07:50-19:35

1 stop16h 45m

Newark

Mon 23/2

21:35-16:45

1 stop14h 10m

£510

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Thu 8/1

07:50-19:35

1 stop16h 45m

Newark

Fri 16/1

18:35-11:30

1 stop11h 55m

£533

ShannonNew York

SNN - LGA

SNNLGA

Shannon

Thu 26/3

07:50-08:07

2 stops28h 17m

New York LaGuardia

Sat 4/4

17:35-16:05

2 stops17h 30m

£534

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Thu 5/3

07:50-19:35

1 stop16h 45m

Newark

Mon 9/3

22:35-19:25

1 stop16h 50m

£544

ShannonNewark

SNN - EWR

SNNEWR

Shannon

Thu 26/3

07:50-08:27

2 stops28h 37m

Newark

Sat 4/4

22:40-10:15

Nonstop6h 35m

£548

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 48 results
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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
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, February is the cheapest month in which you can book a flight from Shannon, Clare to USA (average of £282). Flying from Shannon, Clare to USA in June is currently the most expensive (average of £413). 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 13 November 2025.

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.

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 13 November 2025.
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
7.2
Good
1,370 reviews
Check prices

Boarding

7.4

Comfort

7.1

Food

6.6

Entertainment

6.9

Overall

7.2

Crew

8.0

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.
Aer Lingus
7.2
Good
1,370 reviews
Aer Lingus
7.2
Good
1,370 reviews
Check prices

Boarding

7.4

Comfort

7.1

Food

6.6

Entertainment

6.9

Overall

7.2

Crew

8.0

Reviews

1 / 20
6.0
Good

David,Oct 2025

DUB - IAD

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight from Dublin to Washington (Flight EI 119 on October 25, 2025) one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. Beyond being firm and actually nasty and rude. A little interpersonal communication training could help this man.

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 24h 45m. There are 3165 mi between Shannon, Clare and USA.

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

    When deciding which route to take from Shannon, Clare to USA consider Shannon - Newark, Shannon - Austin Bergstrom or Shannon - Honolulu 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, February is the cheapest month in which you can book a flight from Shannon, Clare to USA (average of £282). Flying from Shannon, Clare to USA in June is currently the most expensive (average of £413). 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

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Alternative routes for Shannon to USA

See prices for flight routes from nearby airports that may be better suited for you.
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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 13 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£313Average£436FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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

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Why should you use Cheapflights to find cheap flight tickets 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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