Scheduled air passenger carriers · Colorado

Frontier Airlines - Chicago Base

Name: Frontier Airlines - Chicago Base Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Denver, CO · ~524 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 5.2
Avg TCR: 4.5
Industry avg: 0
Fatalities

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The verdict

Frontier Airlines - Chicago Base runs at 115% of its industry's injury rate - about level with the typical Scheduled air passenger carriers workplace, earning a grade C.

Frontier Airlines - Chicago Base: 5.2 TCR = 115% of Scheduled air passenger carriers BLS 4.5 · 3y Form 300A (see methodology below)

Frontier Airlines - Chicago Base safety composite

Frontier Airlines - Chicago Base scores strongest on dart rate (safer than 61% of same-industry peers) and weakest on fatalities (safer than 50%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

57/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 5.18 per 100 workers

Safer than 57% of industry peers
DART rate: C 3.06 per 100 workers

Safer than 61% of industry peers
Fatalities: D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

Frontier Airlines - Chicago Base: 2.6 → 3.9 TCR

Peak year 2020 @ 9.0 TCR · DART/TCR 0.59× in 2021

Frontier Airlines - Chicago Base's TCR rose 1.3 from 2.6 in 2019 to 3.9 in 2021. Peak filing year was 2020 at 9.0 TCR. In 2021, DART was 0.59× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 481111 · Denver, CO ABOVE-IND · MID

Grade C · TCR 5.2 · 115% of ind

DART 3.1 DART
RANK #20/57
PHOTO IWA
BOOK 3y book
INJ 12 inj
SIZE ~524 FTE

Nearest TCR peer: IWA (0.0 TCR gap)

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This site

5.2
IWA

5.2
4795-EA-ORD-CH

5.2
2073-SW-207302

5.2
Phoenix Alaska

5.2

What this shows Frontier Airlines - Chicago Base averages 5.2 TCR (115% of the Scheduled air passenger carriers BLS benchmark).

Frontier Airlines - Chicago Base TCR series: 2019=2.6 · 2020=9 · 2021=3.9 · BLS 4.5

Where Frontier Airlines - Chicago Base falls in its industry

1,568 Scheduled air passenger carrie establishments

Safer than 57% of graded establishments in this industry, whose median TCR is 6.1.

Grade C

More dangerous than peersSafer than peers

Narrower to Colorado alone (the establishments it most directly competes with for workers and contracts): ranked #20 safest of 57 Scheduled air passenger carrie employers in Colorado.

Frontier Airlines - Chicago Base (524 employees, TCR 5.2) among 29 same-industry peers, split at the industry median of 102 employees and a TCR of 6.1

Frontier Airlines - Chicago Base has more employees than the Scheduled air passenger carriers median and a lower injury rate than the industry's median TCR of 6.1. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year	TCR	DART	Injuries	Illnesses
2021	3.9	3.1	6	3
2020	9.0	6.0	2	1
2019	2.6	2.6	4	2

OSHA ITA peer cross-reference

Establishment peer ledger

481111 · CO · Denver

1,568 Scheduled air passenger carriers employers nationwide with a credible TCR · 9,007 rated employers in Colorado with headcount on file · 1,757 employers in Denver, CO · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	IWA	MESA, AZ	5.2 TCR
NAICS-TCR	4795-EA-ORD-CHICAGO - OHARE-ORD-TRML	CHICAGO, IL	5.2 TCR
NAICS-TCR	2073-SW-20730207-IF	MINNEAPOLIS, MN	5.2 TCR
NAICS-TCR	Phoenix Alaska CS	PHOENIX, AZ	5.2 TCR
STATE-SIZE	GE Johnson Construction	COLORADO SPRINGS	524 FTE
STATE-SIZE	Leprino Foods Greeley	GREELEY	525 FTE
STATE-SIZE	LONG Building Technologies	LITTLETON	526 FTE
STATE-SIZE	Leprino Foods	GREELEY	527 FTE
CITY-NEAR	DEN DEN	Denver	9,832 FTE
CITY-NEAR	6925-DEN	Denver	6,769 FTE
CITY-NEAR	DEN - Airport United Airlines Offices	Denver	5,277 FTE
CITY-NEAR	CO-01	Denver	4,581 FTE
NAT-TCR	Wildwood Family Clinic S.C.	Madison, WI	5.2 TCR
NAT-TCR	PXP	Phoenix, AZ	5.2 TCR
NAT-TCR	All-Star-Seymour	Seymour, CT	5.2 TCR
NAT-TCR	Holland Mgmt RC6 Newton Falls	Newton Falls, OH	5.2 TCR
NAT-SIZE	Givaudan Flavors Edison	Cincinnati, OH	524 FTE
NAT-SIZE	Oelwein Human Services	Oelwein, IA	524 FTE
NAT-SIZE	Indepedence Store	Independence, IA	524 FTE
NAT-SIZE	Legrand Wiremold West Hartford	West Hartford, CT	524 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2021, 2020, 2019. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.