Flights Boston → Shannon
BOS → SNN
How long is the flight from Boston to Shannon?
The flight from Boston (BOS) to Shannon (SNN) takes about 6h 14m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
Route overview
The flight route connects Boston to Shannon, operating with a Boeing 757 aircraft. Shannon Airport, the destination, has been in operation since 1942 and currently handles approximately 1,418,084 passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Boston (BOS) → Shannon (SNN) route is operated by Aer Lingus. FlightGuard's average computed risk is 10.8/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Shannon the average ATFM delay is 0.9 minutes (main cause: atfm). Departing from Boston the average ATFM delay is 5.5 minutes.
Heading to Shannon: what to expect in this direction
Flying from Boston (BOS) to Shannon (SNN) heads north-east for about 4,646 km, a flight time of roughly 6h 14m.
Air-traffic congestion: departing Boston the average ATFM delay is 5.5 min (atfm); arriving into Shannon it is 0.9 min (atfm).
Route facts
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Aer Lingus (EI) | 79% | 42 min | 2.5% |
Airlines operating BOS-SNN
Frequently asked questions about BOS-SNN
The flight from Boston (BOS) to Shannon (SNN) takes about 6h 14m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
Route-specific punctuality data isn't available yet. Check your flight on FlightGuard for a real-time analysis.
The cancellation rate varies by airline and season. Check your flight risk for an up-to-date estimate.
The route is operated by 1 airline: Aer Lingus.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Shannon, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
