Cheap Flights from Boston, MA to Shannon from $252

Return flight: Shannon – Boston

On Cheapflightsplus.com you will find 1 direct and 509 connecting flights from Boston to Shannon. You can compare airfare deals from 21 airlines and multiple travel sites from $252, book and save on cheap plane tickets and last minute offers. Also check out BOS-SNN flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Boston to Shannon Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $252 (one-way), $432 (round-trip).
Direct flights
  • Check to choose departure date Check to choose departure date
Check prices for return flight
Find flights
Full flight schedule will help you in detecting at what time planes fly from Boston to Shannon. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
18:35 — 05:25
+1 day
18:35 — 05:25 EI134 Aer Lingus
Boston — Shannon
5h 50m
Find flight
from$483
11:00 — 07:30
+1 day
09:35 — 11:26 UA378 United Airlines
Boston — Chicago
5h 15m stop
18:05 — 07:30 UA288 United Airlines
Chicago — Shannon
15h 30m
including layover
Find flight
from$394
09:40 — 15:50
+1 day
09:40 — 12:56 F93347 Frontier Airlines
Boston — Orlando
7h 34m stop
20:30 — 10:00 Z0784 Z0
Orlando — London
4h 20m stop
14:35 — 16:05 EI385 Aer Lingus
London — Shannon
25h 10m
including layover
Find flight
from$389
10:20 — 00:05
+2 days
10:20 — 11:45 AC751 Air Canada
Boston — Montreal
7h 10m stop
18:55 — 06:30 AC866 Air Canada
Montreal — London
16h 5m stop
22:35 — 00:05 FR109 Ryanair
London — Shannon
32h 45m
including layover
Find flight
from$370
10:20 — 13:10
+1 day
10:20 — 11:45 AC751 Air Canada
Boston — Montreal
7h 10m stop
18:55 — 06:30 AC866 Air Canada
Montreal — London
5h 10m stop
11:40 — 13:10 FR310 Ryanair
London — Shannon
21h 50m
including layover
Find flight
from$373
12:35 — 18:40
+1 day
12:35 — 21:45 FI634 Icelandair
Boston — Reykjavik
9h 55m stop
07:40 — 11:55 FI450 Icelandair
Reykjavik — London
5h 15m stop
20:20 — 21:50 FR109 Ryanair
London — Shannon
25h 5m
including layover
Find flight
from$252
12:35 — 11:50
+2 days
12:35 — 21:45 FI634 Icelandair
Boston — Reykjavik
9h 50m stop
07:35 — 13:00 FI542 Icelandair
Reykjavik — Paris
22h stop
11:00 — 11:50 EI909 Aer Lingus
Paris — Shannon
42h 15m
including layover
Find flight
from$297
14:40 — 10:15
+1 day
14:40 — 16:23 UA721 United Airlines
Boston — Washington D.C.
1h 22m stop
17:45 — 19:22 UA2429 United Airlines
Washington D.C. — Newark
3h 28m stop
22:50 — 10:15 UA270 United Airlines
Newark — Shannon
14h 35m
including layover
Find flight
from$394
15:15 — 14:55
+1 day
15:20 — 16:44 AC8609 Air Canada
Boston — Montreal
5h 10m stop
22:25 — 10:00 AC864 Air Canada
Montreal — London
3h 45m stop
19:15 — 20:50 FR1183 Ryanair
London — Shannon
18h 40m
including layover
Find flight
from$348
15:20 — 13:10
+1 day
15:20 — 16:48 AC8609 Air Canada
Boston — Montreal
2h 7m stop
18:55 — 06:30 AC866 Air Canada
Montreal — London
5h 10m stop
22:35 — 00:05 FR109 Ryanair
London — Shannon
16h 50m
including layover
Find flight
from$350
16:35 — 23:00
+1 day
16:35 — 18:40 AC8695 Air Canada
Boston — Toronto
1h 50m stop
20:30 — 08:35 AC856 Air Canada
Toronto — London
12h 55m stop
21:30 — 23:00 FR109 Ryanair
London — Shannon
25h 25m
including layover
Find flight
from$356
16:35 — 18:40
+1 day
16:35 — 18:40 AC8695 Air Canada
Boston — Toronto
4h 55m stop
23:35 — 11:50 AC858 Air Canada
Toronto — London
5h 20m stop
20:20 — 21:50 FR109 Ryanair
London — Shannon
21h 5m
including layover
Find flight
from$357
17:50 — 16:15
+1 day
17:50 — 07:10 LH423 Lufthansa
Boston — Frankfurt
3h 15m stop
10:25 — 12:25 LH334 Lufthansa
Frankfurt — Naples
1h 20m stop
13:45 — 16:15 FR2987 Ryanair
Naples — Shannon
17h 25m
including layover
Find flight
from$346
17:50 — 14:55
+1 day
17:50 — 07:05 LH423 Lufthansa
Boston — Frankfurt
1h 55m stop
09:00 — 09:40 LH902 Lufthansa
Frankfurt — London
3h 40m stop
13:20 — 14:55 FR1183 Ryanair
London — Shannon
16h 5m
including layover
Find flight
from$371
18:10 — 14:55
+1 day
18:10 — 05:40 TP218 TAP Portugal
Boston — Lisbon
1h 25m stop
07:05 — 09:45 TP1334 TAP Portugal
Lisbon — London
3h 35m stop
13:20 — 14:55 FR1183 Ryanair
London — Shannon
15h 45m
including layover
Find flight
from$392
18:30 — 14:55
+1 day
18:55 — 20:20 AC8611 Air Canada
Boston — Montreal
1h 55m stop
22:25 — 10:00 AC864 Air Canada
Montreal — London
3h 45m stop
15:45 — 17:20 FR1183 Ryanair
London — Shannon
15h 25m
including layover
Find flight
from$348
19:00 — 18:40
+1 day
19:00 — 20:54 AC757 Air Canada
Boston — Toronto
2h 40m stop
23:35 — 11:50 AC858 Air Canada
Toronto — London
5h 20m stop
21:30 — 23:00 FR109 Ryanair
London — Shannon
18h 40m
including layover
Find flight
from$357
19:00 — 17:20
+1 day
19:00 — 20:54 AC757 Air Canada
Boston — Toronto
2h 40m stop
23:35 — 11:50 AC858 Air Canada
Toronto — London
3h 55m stop
15:45 — 17:20 FR1183 Ryanair
London — Shannon
17h 20m
including layover
Find flight
from$366
20:50 — 18:40
+1 day
20:50 — 06:05 FI630 Icelandair
Boston — Reykjavik
1h 35m stop
07:40 — 11:55 FI450 Icelandair
Reykjavik — London
5h 15m stop
17:10 — 18:40 FR109 Ryanair
London — Shannon
16h 50m
including layover
Find flight
from$252
20:50 — 15:10
+1 day
20:50 — 06:05 FI630 Icelandair
Boston — Reykjavik
1h 55m stop
08:00 — 11:40 FI440 Icelandair
Reykjavik — Manchester
2h 20m stop
14:00 — 15:10 FR4776 Ryanair
Manchester — Shannon
13h 20m
including layover
Find flight
from$281
22:25 — 15:50
+2 days
22:25 — 09:50 TP216 TAP Portugal
Boston — Lisbon
9h 30m stop
19:20 — 22:05 TP1358 TAP Portugal
Lisbon — London
16h 15m stop
14:20 — 15:50 EI385 Aer Lingus
London — Shannon
36h 25m
including layover
Find flight
from$355
22:45 — 11:20
+2 days
22:25 — 09:50 TP216 TAP Portugal
Boston — Lisbon
5h 50m stop
16:05 — 18:50 TP1364 TAP Portugal
Lisbon — London
15h stop
09:50 — 11:20 EI381 Aer Lingus
London — Shannon
31h 35m
including layover
Find flight
from$384
23:35 — 11:20
+2 days
23:35 — 08:45 FI632 Icelandair
Boston — Reykjavik
7h 25m stop
16:10 — 20:20 FI454 Icelandair
Reykjavik — London
13h 30m stop
09:50 — 11:20 EI381 Aer Lingus
London — Shannon
30h 45m
including layover
Find flight
from$338
23:35 — 15:50
+2 days
23:35 — 08:45 FI632 Icelandair
Boston — Reykjavik
7h 25m stop
16:10 — 20:20 FI454 Icelandair
Reykjavik — London
18h stop
14:40 — 16:10 EI385 Aer Lingus
London — Shannon
35h 15m
including layover
Find flight
from$338
*Departure and arrival times - local. Updated on July 17, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Boston to Shannon depends on and how to choose the most interesting flight option for you.

Distance between Boston and Shannon is 4646 miles. Time difference between the cities is 5h. Airplanes depart 05:50 to 23:40 from 4 Boston airports and arrive 05:50 to 23:40 to 1 Shannon airport. Average flight time is 5h 50m.

  • The fastest flight 5h 50m
  • Average flight time 5h 50m
  • The earliest flight 05:50
  • The latest flight 23:40
  • Distance 2887 ml

The cheapest months to travel to Shannon are july (from 252 $), june (from 325 $), october (from 346 $).

The most expensive months are february (from 492 $), november (from 414 $), may (from 377 $).

What is the lowest airfare Boston to Shannon?

The cheapest plane ticket found by our users is $252. This airfare is for economy class on one-way FI634 flight by Icelandair for July 25, 2025 which leaves Logan in Boston at 12:35 am and arrives at Shannon Shannon at 18:40.

Economy class
$252
Find
Business class
?
Find
First class
?
Find

Popular Airlines on the Route

The flight Boston — Shannon is served by 21 regular airline and 3 low-cost airlines. Most of the flights on this route are operated by KLM - 26 departures per week at the price of from $ 425 . And the most expensive tickets are offered by SWISS International Air Lines airline - from $ 4865.

Direct flights

There are 1 nonstop flights on the route. The fastest direct flight is EI134 by Aer Lingus takes 5h 50m and the cheapest is FI634 by Icelandair for $483.

  • EI - Aer Lingus
    from $483
    Find
See more direct flights

Connecting Flights

There are 509 flights with layovers on the route. The fastest connecting flight is UA2647 by United Airlines takes 9h 13m and the cheapest is FI634 by Icelandair for $252.

  • KL - KLM
    from $425
    Find
  • AC - Air Canada
    from $348
    Find
  • FI - Icelandair
    from $252
    Find
  • VY - Vueling
    from $358
    Find
  • EI - Aer Lingus
    from $481
    Find
  • AF - Air France
    from $429
    Find
  • UA - United Airlines
    from $388
    Find
  • LX - SWISS International Air Lines
    from $438
    Find
  • F9 - Frontier Airlines
    from $389
    Find
  • OG - Air Onix
    from $373
    Find
  • AY - Finnair
    from $487
    Find
  • SK - SAS
    from $605
    Find
See more connecting flights

Airports

You can fly from Boston to Shannon from 4 airports (Boston City Heliport, Boston RT128 Rail, Boston South Rail, Logan).

Boston airports

  • Boston City Heliport-JBC
    Find
  • Boston RT128 Rail-ZRU
    Find
  • Boston South Rail-ZTO
    Find
  • Logan-BOS
    from $252
    Find

Shannon airports

  • Shannon-SNN
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

Back