Flights Boston → Frankfurt
BOS → FRA
How long is the flight from Boston to Frankfurt?
The flight from Boston (BOS) to Frankfurt (FRA) takes about 7h 47m. 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 Frankfurt, operating with a mix of Boeing 747-400 and Airbus A340-600 aircraft. The destination airport in Frankfurt sees over sixty-one million passengers annually, underscoring its significance as a major international hub.
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) → Frankfurt (FRA) route is operated by Lufthansa Cargo, United Airlines. Across 32 flights monitored in recent months, n/a% arrived on time (within 15 min of schedule), with an average delay of n/a minutes. The cancellation rate is 3.13%. FlightGuard's average computed risk is 15.3/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Frankfurt the average ATFM delay is 2.1 minutes (main cause: atfm). Departing from Boston the average ATFM delay is 5.5 minutes.
Heading to Frankfurt: what to expect in this direction
Flying from Boston (BOS) to Frankfurt (FRA) heads north-east for about 5,889 km, a flight time of roughly 7h 47m.
Departures from Boston on this leg cluster in the midday window: about 56% of BOS-FRA flights take off then.
Air-traffic congestion: departing Boston the average ATFM delay is 5.5 min (atfm); arriving into Frankfurt it is 2.1 min (atfm).
Route facts
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 83% | 5 min | 1.3% |
| Lufthansa Cargo (LH) | 74% | 21 min | 0.0% |
Airlines operating BOS-FRA
Airports
Frequently asked questions about BOS-FRA
The flight from Boston (BOS) to Frankfurt (FRA) takes about 7h 47m. 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 on Boston-Frankfurt is 3.13% across 32 monitored flights.
The route is operated by 2 airlines: Lufthansa Cargo, United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Frankfurt, 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.
