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Shannon

$250+ Cheap flights from Boston (BOS) to Shannon (SNN)

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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SNN
août 2 — août 91
sam. 8/2
sam. 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Shannon are usually found in January or February, booked 22 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Boston to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Shannon (SNN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated juillet 28, 2025.

Round-trip from

$395
(United Airlines)

One-way from

$250
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$880

Good round-trip deal

$449 or less

Good one-way deal

$312 or less
From Boston Logan Intl to Shannon
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One-way flight from Boston Logan Intl to Shannon
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Highest demand for flights based on searches. 15% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Shannon.
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Price to beat on a one-way flight from Boston Logan Intl to Shannon.
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Find flight deals from Boston to Shannon

Cheapest flights from Boston to Shannon
Explore the most affordable flight options available from Boston to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juillet 28, 2025.

This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/16:56 pmBOS - SNN
1 stop10h 19mUnited Airlines
ven. 9/129:30 amSNN - BOS
1 stop12h 13mUnited Airlines
Deal found 7/27$395
This KLM deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/265:00 pmBOS - SNN
1 stop13h 10mKLM
mar. 9/21:05 pmSNN - BOS
1 stop11h 21mKLM
Deal found 7/26$398
This Expedia deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/16:35 pmBOS - SNN
Nonstop5h 50mAer Lingus
mar. 9/91:45 pmSNN - BOS
Nonstop6h 45mAer Lingus
Deal found 7/28$417
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/218:10 pmBOS - SNN
1 stop19h 25mAmerican Airlines
mar. 11/47:50 amSNN - BOS
1 stop16h 55mAmerican Airlines
Deal found 7/27$431
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/288:59 pmBOS - SNN
1 stop9h 11mDelta
ven. 8/81:05 pmSNN - BOS
1 stop11h 15mDelta
Deal found 7/27$453
This KLM deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 8/218:50 pmBOS - SNN
1 stop9h 20mMultiple Airlines
ven. 8/291:05 pmSNN - BOS
1 stop14h 54mMultiple Airlines
Deal found 7/28$457

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Shannon 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 2,558,603 searches. Data last updated juillet 28, 2025.
Use the filters below to find and compare flights from Boston to Shannon that are best for you.

Fly from

Boston

Fly to

Shannon

Route

Depart

Return

Price

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

lun. 9/1

8:02 pm-10:15 am

1 stop9h 13m

Shannon

lun. 9/15

9:30 am-4:43 pm

1 stop12h 13m

$395

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

mar. 8/26

5:00 pm-11:10 am

1 stop13h 10m

Shannon

mar. 9/2

1:05 pm-7:26 pm

1 stop11h 21m

$398

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

lun. 9/1

6:35 pm-5:25 am

Nonstop5h 50m

Shannon

mar. 9/9

1:45 pm-3:30 pm

Nonstop6h 45m

$417

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

mar. 10/21

8:10 pm-8:35 pm

1 stop19h 25m

Shannon

mar. 11/4

7:50 am-7:45 pm

1 stop16h 55m

$431

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

mar. 8/19

6:05 am-11:10 am

1 stop24h 05m

Shannon

mar. 8/26

1:05 pm-10:59 pm

1 stop14h 54m

$454

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

jeu. 8/21

8:50 pm-11:10 am

1 stop9h 20m

Shannon

ven. 8/29

1:05 pm-10:59 pm

1 stop14h 54m

$457

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

dim. 10/19

6:10 pm-9:50 pm

2 stops22h 40m

$250

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

ven. 10/10

6:35 pm-5:25 am

Nonstop5h 50m

$273

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

dim. 8/17

8:02 pm-10:15 am

1 stop9h 13m

$332

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

lun. 8/18

4:55 pm-11:10 am

1 stop13h 15m

$344

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 12 results
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Best time to book a flight from Boston to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Boston with our price prediction graph.
Estimated round-trip 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 Boston to Shannon

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Shannon. Price data was last updated on July 25, 2025.

Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Shannon, Clare. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Boston to Shannon, Clare (average of $533). Flying from Boston to Shannon, Clare in June is currently the most expensive (average of $932). 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 BOS to SNN?

Find hourly flight availability from Boston to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated juillet 28, 2025.

It’s optimal to fly from Boston to Shannon, Clare in the evening. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Boston to Shannon, Clare?

Use this chart to determine the cheapest time to fly round-trip from Boston to Shannon. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Shannon, Clare flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to Shannon, Clare

Explore weekly flight availability from Boston to Shannon. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated juillet 28, 2025.

The most flights from BOS to SNN are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. 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 Shannon. Reviews last updated juillet 28, 2025.
Read reviews from past customers who have flown Delta, KLM, and Air France from Boston to Shannon. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,971 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,971 reviews
Delta
8.0
Very good
7,971 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,381 reviews
Delta
8.0
Very good
7,971 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,971 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,893 reviews
Delta
8.0
Very good
7,971 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,971 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What airports do I use to fly from Boston to Shannon?

    If you wish to fly to Shannon from Boston, then you need to book flights from Boston Logan Intl to Shannon. There are 4 flights from Logan Intl (BOS) to Shannon (SNN) per day to choose from. Flights to Shannon from Logan Intl are available from 6 different airlines, which means you should have some options if you want to compare airfare deals. 5h 50m is how long a nonstop flight from Boston to Shannon typically takes.

  • How popular is this Boston to Shannon, Clare flight route?

    Flights from Boston Logan Intl to Shannon have been viewed 18 times in the past calendar month.

  • What are the cheapest airlines flying from Boston to Shannon, Clare round-trip?

    Our cheapest airline available from Boston to Shannon, Clare is United Airlines. Our recent data shows that you can find tickets from as low as $395 on this airline. Additional options worth looking into are KLM and Aer Lingus, starting at $398 and $417 round-trip. United Airlines is 45% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Boston to Shannon, Clare one-way?

    One-way options have recently been found by users for as low as $273 on Aer Lingus. Other airlines that offer cheap prices include United Airlines from $332 and Delta from $344 one-way.

  • What are the most reliable airlines from Boston to Shannon, Clare?

    Before booking your flight to Shannon, Clare from Boston, check out the most reliable airlines to get you to your destination on time: American Airlines (85%), Aer Lingus (85%), JetBlue( 85%).

  • What are the cheapest flights from Boston to Shannon, Clare?

    The cheapest flight price from Boston to Shannon, Clare is $273. On average you can expect to pay $512. The most popular route, (Boston Logan Intl - Shannon), can usually be booked for $367.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston to Shannon 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 Boston to Shannon, Clare?

    Currently, February is the cheapest month in which you can book a flight from Boston to Shannon, Clare (average of $533). Flying from Boston to Shannon, Clare in June is currently the most expensive (average of $932). 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

Traveling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Ennis

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Top 6 airlines flying from Boston to Shannon

Discover the top 6 airlines that operate flights from Boston to Shannon. 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 2,558,603 searches. Data last updated juillet 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$244Average$572FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$392Average$617FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$434Average$736FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$504Average$817FlexibilityNo cancel feeOn-time71%
KLMCheapest$519Average$741FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$842Average$944FlexibilityNo cancel feeOn-time62%

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