Which airline is most reliable for SLC (Salt Lake City) to BWI (Baltimore)?

The most reliable airline on the SLC to BWI route is Southwest Airlines, with an on-time arrival rate of 81%.

How often are flights delayed from SLC to BWI?

About 21% of flights from SLC to BWI experience delays. 79% arrive on time.

What's the average delay on SLC to BWI flights?

When flights from SLC to BWI are delayed, the average delay is approximately 47 minutes.

Is a short connection safe after a SLC to BWI flight?

With 79% of SLC to BWI flights arriving on time and an average delay of 47 minutes when late, a connection under 60 minutes at BWI is risky. We recommend at least 75-90 minutes for domestic connections after this route.

SLC → BWI

SLC (Salt Lake City) to BWI (Baltimore)

SLC (Salt Lake City) to BWI (Baltimore) flights arrive on time 79% of the time. The most reliable airline on this route is Southwest Airlines at 81%. The average delay is 47 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated August 2026.

SLC → BWI on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 79% of flights arrive on schedule.

Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Accurate?

Southwest Airlines edges out Delta Air Lines on this route — 81% vs 76% on time.

Airline Comparison

Southwest Airlines leads at 81% on time; Delta Air Lines trails at 76%.

Accurate?

Good to know

Departing from SLC

85% on time

Expect ~18 min sitting on the taxiway after your gate pushes back. SLC has long runway queues.

TSA is currently ~12 min. Best time: 4 AM (about 5 min).

More about SLC →

Arriving at BWI

80% on time

When flights into BWI are late, the average delay is 61 minutes. Build buffer if you have ground plans.

If connecting at BWI: TSA is ~14 min right now. Allow at least 60 minutes for a domestic connection.

More about BWI →Connection times at BWI →

Flight cancelled or delayed?

Check what Southwest Airlines owes you — refund rights, action plan, complaint email. Free.

Flying out of SLC? We'll brief you.

Delays, TSA, weather, gates — we'll let you know if something matters.

SLC Airport BWI Airport

Check the return: BWI → SLC

Flying this route?

Enter your flight number for a personalized delay briefing.

Check your flight

Know someone flying soon?

Send them the link — delay data, TSA waits, weather, all free.

Data last updated August 2026. Source: Bureau of Transportation Statistics.