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DelayAtlas

Route reliability record

BUR→SLC

Burbank to Salt Lake City

Flights
1,457
Period
September 2025 to August 2026
Distance
574 mi
Carriers
3
A+GRADE

This route earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 1,457 BUR to SLC flights, of which Delta Air Lines flew 423 at 91.9% on time.

Best time to fly BUR to SLC: a 5am–8am departure, ideally on a Tuesday. Flights in that window arrived on time 94.2% of the time and Tuesday flights 97.5%, against 90.8% for the route overall.

Set against the rest of the country, this route's record is 14 points better than the US average of 77.3%. That gap is worth roughly 135 fewer late arrivals for every thousand flights.

Key figures

On time

90.8%

Arrivals under 15 minutes late, of 1,446 completed flights

Avg delay

88 min

Across delayed arrivals only, not all flights

Cancelled

0.55%

National rate is 1.89%

Best carrier

Delta

91.9% on time across 423 flights

These figures cover 1,457 flights between September 2025 and August 2026. The median arrival is 15 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

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Carrier by carrier

Which airline is most reliable on BUR to SLC

The two carriers here are closely matched: half a point separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.

On-time performance by carrier on BUR to SLC
AirlineFlightsOn timeAvg delayCancelledGrade
Delta Air Lines42391.9%134 min0.71%A+
SkyWest Airlines93991.7%75 min0.53%A+
Southwest Airlinesthin sample9576.8%61 min0.00%B+

No carrier stands out. Delta tops the table at 91.9%, half a point clear of the bottom, which is inside the range this kind of sample moves year to year.

Flight by flight

Flights on BUR to SLC

The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Best ways to make this trip

The most reliable ways to fly Burbank to Salt Lake City

Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 3 of the top 5 use a different airport at one end.

Most reliable ways to fly from BUR to SLC
OptionAirlineSuccessOn timeCancelledBest departureMost punctual flight
1. LGB → SLCLong Beach to Salt Lake CitySkyWest Airlines92.1%92.1%0.00%5am–8am, MonOO 3793 16:50
2. BUR → SLCBurbank to Salt Lake CityDelta Air Lines91.2%91.9%0.71%5am–8am, TueDL 2582 07:00
3. BUR → SLCBurbank to Salt Lake CitySkyWest Airlines91.2%91.7%0.53%5am–8am, TueOO 3693 16:50
4. ONT → SLCOntario to Salt Lake CityDelta Air Lines90.1%91.1%1.15%8am–11am, TueDL 2708 06:00
5. LAX → SLCLos Angeles to Salt Lake CitySkyWest Airlines88.0%88.0%0.00%5pm–8pm, Tue—

Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.

Plan this trip by month, day and time

Departure window

The best time of day to leave

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 1,457 flights.

  • 5am–8am365 flights94.2%
  • 8am–11am340 flights91.3%
  • 11am–2pm319 flights85.8%
  • 2pm–5pm181 flights87.8%
  • 5pm–8pm252 flights93.6%
  • 8pm–5am—

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

The weak window here is the middle of the day, not the evening: 11am–2pm runs 85.8% on time against 94.2% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 5am–8am window is the busiest, with 365 flights scheduled in it.

Explore

Filter BUR to SLC by airline, time, month and day

Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.

On BUR to SLC, the best departure window is 5am–8am at 94.2% on time and the worst is 11am–2pm at 85.8%, a real gap of 8.4 points. All US flights leaving 5am–8am ran 89.3%.

  • 5–8am94.2%
  • 8–11am91.3%
  • 11am–2pm85.8%
  • 2–5pm87.8%
  • 5–8pm93.6%
  • 8pm–5am—

best all US flightsScale 60% to 100%. Cells under 30 flights show a dash.

Across the year

When delays peak on this route

Twelve months, one bar each, drawn from the same 1,457 flights. The strip shows how much of this route's record is set by the calendar rather than by the operation.

On-time rate by calendar month96J90F94M94A94M96J93J89A87S86O87N88D
Darker means more delays. Figures are on-time percentages.January best, October worst

Delays peak in October, when the on-time rate falls to 85.5%. January is the strongest month at 96.2%. Moving a flexible trip across that boundary buys 11 points. October was the busiest month here, with 138 flights.

Across the week, Tuesday is the strongest day at 97.5% on time and Thursday the weakest at 86.1%, a spread of 11 points.

On-time rate by day of the week87.7Mon97.5Tue92.2Wed86.1Thu90.7Fri92.6Sat89.5Sun
Monday: 87.7 percent on time. Tuesday: 97.5 percent on time. Wednesday: 92.2 percent on time. Thursday: 86.1 percent on time. Friday: 90.7 percent on time. Saturday: 92.6 percent on time. Sunday: 89.5 percent on time

Delay causes

Why this route gets delayed

Carrier accounts for 54% of the 12,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Carrier
    54%
  • Extreme weather
    26%
  • Late-arriving aircraft
    14%
  • National Airspace System
    5%

Extreme weather accounts for 26% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.3 times the usual weather exposure. The split is drawn from 11,681 reported delay minutes.

The largest share of delay minutes, 54%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 6,360 of the 12,000 delay minutes reported here.

Cancellations are rare at 0.55%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and stage length

What a delay here actually costs

Badly late arrivals are rare here: only 3.7% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The 574 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.

The return leg is a different operation and performs like one: it runs 87.5% on time across 1,457 flights, 3 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 3 points of difference.

The sample behind these figures is 1,457 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.

Work out the risk of missing a connection in SLC after this flight

What to do with this

Booking this route

Put together: take the 5am–8am departure, avoid October if the dates are flexible, and if two carriers are within a few dollars of each other, Delta is the one with the record behind it. None of that guarantees an on-time arrival; it moves the odds by 8 points, which is the most any booking decision can do. 1,446 completed flights over 12 months sit behind that.

Common questions

BUR to SLC questions

How often is BUR to SLC delayed?

Roughly one flight in ten arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 9.2% of the 1,457 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.

Which airline is most reliable on BUR to SLC?

Delta Air Lines leads at 91.9% on time across 423 flights. SkyWest Airlines is at the other end on 91.7%, a gap of half a point. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.

What time of day has the fewest delays on BUR to SLC?

The 5am–8am departure window is the strongest at 94.2% on time. The 11am–2pm window is the weakest at 85.8%, 8 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.

How bad are October delays on BUR to SLC?

October is the weakest month at 85.5% on time, compared with 96.2% in January. Across the year that is 11 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

Related

Where to go next

Direction matters. BUR to SLC and SLC to BUR are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.

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Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.