United's Polaris Business Class offers lie-flat seats and Saks Fifth Avenue bedding for restful long-haul travel.
United's Premium Plus offers larger seats, extra legroom, and upgraded meals on international routes.
Most accurate provider | FlightHub 3 stars |
---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $347 (Mytrip) |
One-way from | $159 (Kiwi.com) |
Popular in | December |
Cheapest in | March |
Average price | $586 |
Good round-trip deal | $369 or less |
Good one-way deal | $268 or less |
Fly from
Fly to
Route
Depart
Return
Price
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Sun 3/15
8:25 pm-11:30 am
1 stop11h 05m
Shannon
Thu 3/19
7:50 am-10:55 pm
1 stop19h 05m
NewarkShannon
EWR - SNN
EWRSNN
Newark
Fri 12/5
7:38 pm-3:45 pm
2 stops15h 07m
Shannon
Wed 12/10
7:50 am-7:35 pm
1 stop16h 45m
New YorkShannon
JFK - SNN
JFKSNN
New York John F Kennedy Intl
Wed 11/26
8:40 pm-4:45 pm
1 stop15h 05m
Shannon
Tue 12/2
7:50 am-6:40 pm
1 stop15h 50m
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Wed 10/29
8:15 pm-11:30 am
1 stop11h 15m
Shannon
Wed 11/5
7:50 am-4:10 pm
1 stop13h 20m
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Wed 4/8
10:44 am-10:15 am
2 stops18h 31m
Shannon
Wed 4/15
12:30 pm-6:13 pm
1 stop10h 43m
New YorkShannon
JFK - SNN
JFKSNN
New York John F Kennedy Intl
Wed 11/19
1:45 pm-6:20 am
1 stop11h 35m
Shannon
Sun 11/23
2:00 pm-4:25 pm
Nonstop7h 25m
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Sat 11/15
1:42 pm-5:55 am
1 stop11h 13m
Shannon
Mon 11/24
2:45 pm-4:50 pm
Nonstop7h 05m
New YorkShannon
JFK - SNN
JFKSNN
New York John F Kennedy Intl
Sat 11/8
6:30 pm-5:55 am
Nonstop6h 25m
Shannon
Sat 11/15
2:45 pm-8:03 pm
1 stop10h 18m
BostonShannon
BOS - SNN
BOSSNN
Boston Logan Intl
Sat 11/15
7:25 pm-6:20 am
Nonstop5h 55m
Shannon
Sun 11/23
2:00 pm-12:14 am
1 stop15h 14m
DenverShannon
DEN - SNN
DENSNN
Denver Intl
Wed 11/12
12:26 pm-11:30 am
2 stops16h 04m
Shannon
Wed 11/19
7:50 am-3:30 pm
1 stop14h 40m
Currently, September is the cheapest month in which you can book a flight from USA to Shannon, Clare (average of $292). Flying from USA to Shannon, Clare in June is currently the most expensive (average of $480). 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.
One of the essential ways to save on airfare from USA to Shannon, Clare is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 13% on airfare.
Travelers seeking maximum savings on their USA to Shannon, Clare flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Matthew,Oct 2025
GSP - ATL
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Matthew,Oct 2025
GSP - ATL
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Matthew,Oct 2025
GSP - ATL
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Matthew,Oct 2025
GSP - ATL
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Matthew,Oct 2025
GSP - ATL
Crew
Comfort
Entertainment
Food
Overall
Boarding
Reviews
Matthew,Oct 2025
GSP - ATL
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Cheapest$244 | Average$776 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$361 | Average$736 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$377 | Average$708 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$391 | Average$797 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$396 | Average$727 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$423 | Average$705 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$592 | Average$856 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$670 | Average$956 | FlexibilityNo cancel fee | On-time70% | |
Cheapest$782 | Average$926 | FlexibilityNo cancel fee | On-time62% |