$284+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SNN
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Shannon with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Boston Logan Intl to Shannon are usually found in January or March, booked 35 days in advance, depart on a Friday or Sunday and return on a Tuesday
Cheap flight deals from Boston to Shannon
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to ShannonExplore 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 June 15, 2026.
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 June 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 10/46:30 pm
BOS
- SNN
Nonstop5h 55m
Multiple Airlines
Wed 10/76:05 am
SNN
- BOS
2 stops20h 00m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$611
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 9/176:30 pm
BOS
- SNN
Nonstop5h 55m
Multiple Airlines
Wed 9/236:05 am
SNN
- BOS
2 stops20h 00m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$618
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 9/176:30 pm
BOS
- SNN
Nonstop5h 55m
Multiple Airlines
Thu 9/246:05 am
SNN
- BOS
2 stops20h 00m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$626
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/96:00 am
BOS
- SNN
1 stop23h 15m
United Airlines
Mon 9/149:30 am
SNN
- BOS
1 stop14h 49m
United Airlines
Deal found 6/10![United Airlines logo]()
$628
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
Wed 9/96:30 pm
BOS
- SNN
Nonstop5h 55m
Multiple Airlines
Wed 9/236:05 am
SNN
- BOS
2 stops20h 00m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$637
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Wed 10/146:30 pm
BOS
- SNN
Nonstop5h 55m
Multiple Airlines
Wed 10/216:05 am
SNN
- BOS
2 stops20h 00m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$639
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Wed 9/96:30 pm
BOS
- SNN
Nonstop5h 55m
Multiple Airlines
Thu 9/246:05 am
SNN
- BOS
2 stops20h 00m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$649
This Booking.com deal was found by Cheapflights users on 6/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:30 pm
BOS
- SNN
Nonstop5h 55m
Aer Lingus
Fri 9/111:45 pm
SNN
- BOS
Nonstop6h 55m
Aer Lingus
Deal found 6/13![Aer Lingus logo]()
$657
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 9/152:28 pm
BOS
- SNN
2 stops14h 47m
United Airlines
Wed 9/239:30 am
SNN
- BOS
1 stop11h 57m
United Airlines
Deal found 6/10![United Airlines logo]()
$658
Best flights from Boston to ShannonDiscover carefully curated flight deals from Boston to Shannon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
Discover carefully curated flight deals from Boston to Shannon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 9/1710:38 am
BOS
- SNN
1 stop15h 52m
United Airlines
Mon 9/219:30 am
SNN
- BOS
1 stop13h 11m
United Airlines
Deal found 6/10![United Airlines logo]()
$658
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Mon 9/73:30 pm
BOS
- SNN
1 stop13h 45m
United Airlines
Fri 9/119:30 am
SNN
- BOS
1 stop19h 00m
United Airlines
Deal found 6/12![United Airlines logo]()
$687
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Tue 9/16:00 pm
BOS
- SNN
1 stop11h 15m
United Airlines
Wed 9/169:30 am
SNN
- BOS
1 stop13h 06m
United Airlines
Deal found 6/13![United Airlines logo]()
$687
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 8/193:30 pm
BOS
- SNN
1 stop11h 00m
United Airlines
Thu 8/279:30 am
SNN
- BOS
1 stop19h 04m
United Airlines
Deal found 6/14![United Airlines logo]()
$687
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 8/249:33 am
BOS
- SNN
2 stops16h 57m
United Airlines
Fri 8/2812:30 pm
SNN
- BOS
1 stop10h 22m
United Airlines
Deal found 6/10![United Airlines logo]()
$691
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 10/1312:36 pm
BOS
- SNN
1 stop16h 39m
United Airlines
Tue 10/2012:30 pm
SNN
- BOS
1 stop13h 58m
United Airlines
Deal found 6/14![United Airlines logo]()
$710
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 9/1611:00 am
BOS
- SNN
1 stop18h 15m
United Airlines
Mon 9/2112:30 pm
SNN
- BOS
1 stop10h 22m
United Airlines
Deal found 6/14![United Airlines logo]()
$717
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 9/1910:38 am
BOS
- SNN
1 stop15h 52m
United Airlines
Fri 9/2512:30 pm
SNN
- BOS
1 stop13h 58m
United Airlines
Deal found 6/10![United Airlines logo]()
$717
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Sun 10/1110:51 am
BOS
- SNN
1 stop18h 24m
United Airlines
Thu 10/1512:30 pm
SNN
- BOS
1 stop10h 22m
United Airlines
Deal found 6/14![United Airlines logo]()
$717
This United Airlines deal was found by Cheapflights users on 6/12. 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 9/183:35 pm
BOS
- SNN
1 stop13h 40m
United Airlines
Mon 9/219:30 am
SNN
- BOS
1 stop17h 29m
United Airlines
Deal found 6/12![United Airlines logo]()
$717
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 8/127:05 am
BOS
- SNN
1 stop19h 25m
United Airlines
Mon 8/179:30 am
SNN
- BOS
1 stop13h 10m
United Airlines
Deal found 6/12![United Airlines logo]()
$717
Last-minute flights from Boston to ShannonDiscover last-minute flight deals from Boston to Shannon. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Shannon. Data last updated June 15, 2026 and is based on user searches.
This KLM deal was found by Cheapflights users on 6/15. 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 7/79:20 pm
BOS
- SNN
1 stop8h 50m
Multiple Airlines
Wed 8/51:05 pm
SNN
- BOS
1 stop14h 38m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$747
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 7/712:35 pm
BOS
- SNN
2 stops13h 55m
United Airlines
Wed 8/59:30 am
SNN
- BOS
2 stops14h 44m
United Airlines
Deal found 6/11![United Airlines logo]()
$752
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 7/77:00 pm
BOS
- SNN
1 stop10h 15m
United Airlines
Wed 7/1512:30 pm
SNN
- BOS
1 stop27h 46m
United Airlines
Deal found 6/10![United Airlines logo]()
$759
This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 7/117:30 pm
BOS
- SNN
1 stop10h 40m
Delta
Tue 7/211:05 pm
SNN
- BOS
1 stop11h 11m
Delta
Deal found 6/10![Delta logo]()
$700
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 7/198:15 am
BOS
- SNN
2 stops21h 00m
United Airlines
Tue 7/289:30 am
SNN
- BOS
2 stops17h 25m
United Airlines
Deal found 6/10![United Airlines logo]()
$704
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Sun 7/265:00 pm
BOS
- SNN
1 stop33h 30m
United Airlines
Fri 7/319:30 am
SNN
- BOS
1 stop17h 26m
United Airlines
Deal found 6/13![United Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 7/295:45 am
BOS
- SNN
2 stops23h 30m
United Airlines
Wed 8/59:30 am
SNN
- BOS
2 stops14h 44m
United Airlines
Deal found 6/14![United Airlines logo]()
$732
This KLM deal was found by Cheapflights users on 6/10. 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.
Fri 7/319:20 pm
BOS
- SNN
1 stop8h 50m
KLM
Sat 8/81:05 pm
SNN
- BOS
1 stop23h 20m
KLM
Deal found 6/10![KLM logo]()
$699
This Delta deal was found by Cheapflights users on 6/14. 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.
Fri 7/311:35 pm
BOS
- SNN
1 stop16h 35m
Delta
Tue 8/41:05 pm
SNN
- BOS
1 stop11h 10m
Delta
Deal found 6/14![Delta logo]()
$717
This United Airlines deal was found by Cheapflights users on 6/14. 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 7/316:05 am
BOS
- SNN
2 stops20h 25m
United Airlines
Thu 8/612:30 pm
SNN
- BOS
1 stop11h 58m
United Airlines
Deal found 6/14![United Airlines logo]()
$722
One-way flights from Boston to ShannonSearch for one-way flight options from Boston to Shannon. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
Search for one-way flight options from Boston to Shannon. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
Tue 7/1410:04 am
BOS
- SNN
2 stops29h 16m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Wed 10/2111:00 pm
BOS
- SNN
2 stops16h 30m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Tue 9/88:50 pm
BOS
- SNN
3 stops22h 25m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/278:50 pm
BOS
- SNN
2 stops31h 40m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 10/228:50 pm
BOS
- SNN
2 stops19h 00m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Mon 8/178:50 pm
BOS
- SNN
2 stops19h 45m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/198:50 pm
BOS
- SNN
2 stops33h 35m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 10/18:50 pm
BOS
- SNN
2 stops19h 00m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Mon 8/38:50 pm
BOS
- SNN
2 stops14h 50m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Tue 8/48:50 pm
BOS
- SNN
3 stops21h 45m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$313
Find 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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $628 (United Airlines) |
One-way from | $284 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $732 |
Good round-trip deal | $725 or less |
Good one-way deal | $524 or less |
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 June 15, 2026.
Use the filters below to find and compare flights from Boston to Shannon that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Thu 9/17
10:38 am-7:30 am
1 stop15h 52m
Shannon
Mon 9/21
9:30 am-5:41 pm
1 stop13h 11m
$658
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Mon 9/7
3:30 pm-10:15 am
1 stop13h 45m
Shannon
Fri 9/11
9:30 am-11:30 pm
1 stop19h 00m
$687
Quickest round-trip
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Tue 9/1
6:00 pm-10:15 am
1 stop11h 15m
Shannon
Wed 9/16
9:30 am-5:36 pm
1 stop13h 06m
$687
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Wed 8/19
3:30 pm-7:30 am
1 stop11h 00m
Shannon
Thu 8/27
9:30 am-11:34 pm
1 stop19h 04m
$687
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Mon 8/24
9:33 am-7:30 am
2 stops16h 57m
Shannon
Fri 8/28
12:30 pm-5:52 pm
1 stop10h 22m
$691
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Tue 10/13
12:36 pm-10:15 am
1 stop16h 39m
Shannon
Tue 10/20
12:30 pm-9:28 pm
1 stop13h 58m
$710
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Wed 9/16
11:00 am-10:15 am
1 stop18h 15m
Shannon
Mon 9/21
12:30 pm-5:52 pm
1 stop10h 22m
$717
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Sat 9/19
10:38 am-7:30 am
1 stop15h 52m
Shannon
Fri 9/25
12:30 pm-9:28 pm
1 stop13h 58m
$717
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Sun 10/11
10:51 am-10:15 am
1 stop18h 24m
Shannon
Thu 10/15
12:30 pm-5:52 pm
1 stop10h 22m
$717
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Fri 9/18
3:35 pm-10:15 am
1 stop13h 40m
Shannon
Mon 9/21
9:30 am-9:59 pm
1 stop17h 29m
$717
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Boston to Shannon
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Shannon in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Shannon, Clare flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Shannon, Clare flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Shannon, Clare flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Shannon, Clare flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Shannon, Clare flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
BOS-SNN
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
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Airlines
How far ahead should I book a flight from Boston to Shannon, Clare?
Booking 34 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, January is the cheapest month in which you can book a flight from Boston to Shannon, Clare (average of $442). Flying from Boston to Shannon, Clare in December is currently the most expensive (average of $878). 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 June 15, 2026.
When flying from Boston to Shannon, Clare, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 June 15, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAer Lingus 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.
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
Traveling to a place near Shannon?
Book flights to Shannon if you plan to visit one of these locationsEnnis
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Complete your trip to Shannon by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Shannon by cabin class
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Boston and Shannon flights
Browse other Boston and Shannon flight options. Last updated on June 15, 2026.
Other flights from Boston
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Other flights to Shannon
Explore flights to Shannon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 15, 2026.
Top 7 airlines flying from Boston to Shannon
Discover the top 7 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 June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$244 | Average$607 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$352 | Average$597 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$366 | Average$490 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$396 | Average$669 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$550 | Average$634 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$612 | Average$958 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$827 | Average$1,236 | FlexibilityNo cancel fee | On-time62% |