Flights Boston → Salt Lake City
BOS → SLC
Route overview
The flight route from Boston to Salt Lake City operates with a high level of punctuality, achieving an on-time performance rate of 86%. Over the course of the year, it has recorded an average delay time of 8.9 minutes per flight across a total of 334 flights, using Boeing 737-800 aircraft. The destination airport sees over 25 million passengers annually, indicating significant traffic and demand for air travel services.
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) → Salt Lake City (SLC) route is operated by Delta Air Lines. Across 421 flights monitored in recent months, 83% arrived on time (within 15 min of schedule), with an average delay of 11 minutes. The cancellation rate is 1.66%. FlightGuard's average computed risk is 22.6/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Salt Lake City the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Boston the average ATFM delay is 2.0 minutes.
Heading to Salt Lake City: what to expect in this direction
Flying from Boston (BOS) to Salt Lake City (SLC) heads west for about 3,380 km, a flight time of roughly 4h 39m.
Departures from Boston on this leg cluster in the midday window: about 43% of BOS-SLC flights take off then.
Air-traffic congestion: departing Boston the average ATFM delay is 2.0 min (atfm); arriving into Salt Lake City it is 2.0 min (atfm).
Across 421 tracked BOS-SLC flights, 83% left on time with an average delay of 11 min and a 1.7% cancellation rate.
Route facts
Flights on this route
Check the risk of a specific flight.
Flexible on this trip? Compare flights
Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Delta Air Lines (DL) | 80% | 8 min | 1.8% |
Airlines operating BOS-SLC
Airports
Frequently asked questions about BOS-SLC
On the Boston (BOS) -> Salt Lake City (SLC) route, on-time performance is 83% with an average delay of 11 minutes, based on 421 tracked flights.
The cancellation rate on Boston-Salt Lake City is 1.66% across 421 monitored flights.
The route is operated by 1 airline: Delta Air Lines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Salt Lake City, 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.
