401(k) · DOL Form 5500 · 2023

Southwest Airlines Co. 401(k) Plan

Data updated 2026-08-25

$9.9B
Total assets Very large vs avg
60,657
Participants Very large workforce
100th
Percentile by assets National rank
$162,668
Avg per participant Above avg balance/head
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Official DOL plan name: Southwest Airlines Co. 401(k) Plan · Sponsored by Southwest Airlines Co. · Texas · Transportation & Warehousing

$9.9B in assets, 60,657 participants

Southwest Airlines Co.'s Southwest Airlines Co. 401(k) Plan reported $9.9B in total assets and 60,657 participants in its 2023 DOL Form 5500 filing, ranking in the 100th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #3,350 in Transportation & Warehousing (3,362 peers)

Coverage in Texas

Southwest Airlines Co. 401(k) Plan covers 60,657 participants in Texas, 88x the typical Texas plan (state average ~688 per filing). Assets: $9.9B.

#3,350
in Transportation & Warehousing (3,362 peers)
+23.4%
assets growth YoY
99×
vs typical plan assets (national mean)

Southwest Airlines Co. 401(k) Plan's outsized position by total assets

Southwest Airlines Co. 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$9,866,923,903 Highest reported value at or above every one of 127,068 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

Southwest Airlines Co. 401(k) Plan's mega-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Southwest Airlines Co. 401(k) Plan is a mega filing (60,657 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Southwest Airlines Co. 401(k) Plan reported net income rose from -$1.6B in the plan year 2022 filing to $1.9B in the plan year 2023 filing.
  • Southwest Airlines Co. 401(k) Plan end-of-year assets rose from $8.0B in the plan year 2022 filing to $9.9B in the plan year 2023 filing.
  • Southwest Airlines Co. 401(k) Plan reported participants rose from 50,590 in the plan year 2022 filing to 60,657 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

Filing strip 741563240 · Southwest Airlines Co. PY 2023 · 401(k)

Southwest Airlines Co. 401(k) Plan · $9.9B · 60,657 · 100th

  • BOOK $9.9B
  • VS-ST 60,657
  • BOY 100th
  • SCH 401(k)
  • EBSA near GE Healthcare Retirement Savings Plan
  • PART ind #3350

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Transportation & Warehousing retirement plans → · Plans in Texas →

Southwest Airlines Co. 401(k) Plan in the asset neighbourhood

Truist Financial Corporation 401(k) Savings PlanTruist Financial Corporation…$10.1BThe Dow Chemical Company Employees' Savings PlanThe Dow Chemical Company Emp…$10.1BSouthwest Airlines Co. 401(k) PlanSouthwest Airlines Co. 401(k…$9.9BGE Healthcare Retirement Savings PlanGE Healthcare Retirement Sav…$9.8BThe Vanguard Retirement and Savings PlanThe Vanguard Retirement and …$9.8B
End-of-year total assets ($B) among Southwest Airlines Co. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Texas filing particulars

Total Assets (Beginning of Year)$8.0B
Net Assets (End of Year)$9.9B
Net Income$1.9B
Employer EIN741563240
Plan Effective Date1991-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Southwest Airlines Co.)

Sponsor-wide plan assets over time

All Southwest Airlines Co. plans reported in each filing year

Latest sponsor-wide plan assets
$28.7B 37.33380234491332% vs 2022
2024 filing year
$20B$25B$30B 202220232024 $20.9B $28.7B ▲ +37.3%
Year Plans Participants Total Assets
2022 3 120,230 $20.9B
2023 3 141,844 $24.8B
2024 4 168,461 $28.7B

Nearby 401(k) Plans in Texas

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Southwest Airlines Co. 401(k) Plan vs. nearby 401(k) plans in Texas, assets vs. participants Scatter plot of 6 data points. 050000100000150000 01020304050 Total assets ($B) Participants Southwest Airlines Co. 401(k) Plan, Total assets ($B): 9.866923903 · Participants: 60657Southwest Airlines Co. 401(k) PlanAT&T Retirement Savings Plan, Total assets ($B): 40.012012 · Participants: 119854AT&T Retirement Savings PlanExxonmobil Savings Plan, Total assets ($B): 21.917 · Participants: 23477Exxonmobil Savings PlanCaterpillar 401(k) Savings Plan, Total assets ($B): 16.496476432 · Participants: 41679Caterpillar 401(k) Savings PlanAmerican Airlines, Inc. 401(k) Plan, Total assets ($B): 14.680189879 · Participants: 88792American Airlines, Inc. 401(k) PlanDell Inc. 401(k) Plan, Total assets ($B): 13.529835 · Participants: 45686Dell Inc. 401(k) Plan
Southwest Airlines Co. 401(k) Plan vs. nearby 401(k) plans in Texas, assets vs. participants

Scale composition for Southwest Airlines Co. 401(k) Plan

Southwest Airlines Co. 401(k) Plan reports $9.9B in end-of-year assets across 60,657 participants (0.080% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.065% of 93,925,755 covered participants) - about $162,668 per participant (1.2x the national average assets-per-participant) . Net income for plan year 2023 was $1.9B.

This plan identity (EIN 741563240, plan #004) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $8.0B to $17.0B (+112.6%) while covered participants moved from 50,590 to 67,820 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 50,590 $8.0B Open filing
2023 60,657 $9.9B This page
2024 · index core 67,820 $17.0B Open filing

The same sponsor also keeps 3 other index-core plans on PlainRetire:

Southwest Airlines Co. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Texas, the nearest 401(k) by assets is GE Healthcare Retirement Savings Plan in IL ($9.8B); by covered participants it is State Farm 401(k) Savings Plan in IL (60,246 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($9.9B here).

Similar participant headcount

Nearest other-state filings by covered participants (60,657 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Southwest Airlines Co. 401(k) Plan assets move in 2023? ▼
Southwest Airlines Co. 401(k) Plan grew sharply - up 23.4% during 2023, from $8.0B to $9.9B. Reported net income was $1.9B.
How have Southwest Airlines Co. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Southwest Airlines Co.'s sponsor-wide assets grew 37.3%, from $20.9B to $28.7B.
Where does Southwest Airlines Co. 401(k) Plan rank by assets among Form 5500 filers? ▼
Southwest Airlines Co. 401(k) Plan ranks in the 100th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Southwest Airlines Co. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is GE Healthcare Retirement Savings Plan in IL ($9.8B, N/A participants).
Which 401(k) plans cover a similar participant headcount to Southwest Airlines Co. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is State Farm 401(k) Savings Plan in IL (60,246 participants, $16.9B in assets).