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Shannon

$234+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SNN
Jul 14 — Jul 211
Mon 7/14
Mon 7/21
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 82 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

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 July 9, 2025.

Round-trip from

$439
(United Airlines)

One-way from

$234
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$877

Good round-trip deal

$546 or less

Good one-way deal

$434 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. 14% potential increase in price ($123 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 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 July 9, 2025.

This United Airlines deal was found by Cheapflights users on 7/8. 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.
Fri 7/258:02 pmBOS - SNN
1 stop9h 13mUnited Airlines
Tue 7/2912:30 pmSNN - BOS
2 stops16h 29mUnited Airlines
Deal found 7/8$439
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:35 pmBOS - SNN
Nonstop5h 50mMultiple Airlines
Tue 10/149:15 pmSNN - BOS
2 stops29h 00mMultiple Airlines
Deal found 7/9$446
This American Airlines deal was found by Cheapflights users on 7/9. 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.
Thu 11/137:25 pmBOS - SNN
1 stop11h 05mAmerican Airlines
Thu 11/207:50 amSNN - BOS
1 stop11h 30mAmerican Airlines
Deal found 7/9$447
This Flysmarter deal was found by Cheapflights users on 7/9. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/313:16 pmBOS - SNN
1 stop11h 14mLufthansa
Sun 8/312:30 pmSNN - BOS
1 stop15h 40mLufthansa
Deal found 7/9$449
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/318:40 amBOS - SNN
1 stop16h 15mAer Lingus
Tue 9/91:45 pmSNN - BOS
Nonstop6h 45mAer Lingus
Deal found 7/8$451
This KLM deal was found by Cheapflights users on 7/7. 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.
Tue 7/84:00 pmBOS - SNN
1 stop14h 10mKLM
Thu 7/171:05 pmSNN - BOS
1 stop11h 15mKLM
Deal found 7/7$473
This Delta deal was found by Cheapflights users on 7/7. 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.
Sun 7/201:20 pmBOS - SNN
1 stop16h 50mDelta
Sun 8/31:05 pmSNN - BOS
1 stop23h 57mDelta
Deal found 7/7$476

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 July 9, 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

Fri 7/25

8:02 pm-10:15 am

1 stop9h 13m

Shannon

Tue 7/29

12:30 pm-11:59 pm

2 stops16h 29m

$439

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Thu 10/9

6:35 pm-5:25 am

Nonstop5h 50m

Shannon

Tue 10/14

9:15 pm-9:15 pm

2 stops29h 00m

$446

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Thu 11/13

7:25 pm-11:30 am

1 stop11h 05m

Shannon

Thu 11/20

7:50 am-2:20 pm

1 stop11h 30m

$447

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Thu 7/31

3:16 pm-7:30 am

1 stop11h 14m

Shannon

Sun 8/3

12:30 pm-11:10 pm

1 stop15h 40m

$449

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Sun 8/31

8:40 am-5:55 am

1 stop16h 15m

Shannon

Tue 9/9

1:45 pm-3:30 pm

Nonstop6h 45m

$451

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Fri 8/15

8:00 am-11:10 am

1 stop22h 10m

Shannon

Sat 8/23

1:05 pm-10:59 pm

1 stop14h 54m

$473

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Sat 7/26

1:10 pm-11:10 am

1 stop17h 00m

Shannon

Wed 7/30

1:05 pm-10:51 pm

1 stop14h 46m

$503

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Sun 9/21

8:50 pm-9:50 pm

2 stops20h 00m

$234

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Sat 10/18

6:35 pm-5:25 am

Nonstop5h 50m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

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 June 27, 2025.

Booking 82 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 $933). 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 July 9, 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 Tuesday 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 July 9, 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 July 9, 2025.
Read reviews from past customers who have flown Delta, KLM, and United Airlines 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
7,954 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
1,370 reviews
Delta
8.0
Very good
7,954 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
8,842 reviews
Delta
8.0
Very good
7,954 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
7,954 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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!
Aer Lingus
7.1
Good
1,151 reviews
Delta
8.0
Very good
7,954 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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 $439 on this airline. Additional options worth looking into are American Airlines and Lufthansa, starting at $448 and $449 round-trip. United Airlines is 40% 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 $275 on Aer Lingus. Other airlines that offer cheap prices include United Airlines from $334 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 (90%), Aer Lingus (90%), JetBlue( 90%).

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

    The cheapest flight price from Boston to Shannon, Clare is $312. On average you can expect to pay $2,146. The most popular route, (Boston Logan Intl - Shannon), can usually be booked for $287.

  • 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 $933). 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.

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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 July 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$438Average$742FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$457Average$631FlexibilityNo cancel feeOn-time69%
DeltaCheapest$476Average$606FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$519Average$685FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$535Average$821FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$842Average$942FlexibilityNo cancel feeOn-time62%

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