# The routes that vanished, and the ones that doubled

Published 2026-11-07 · By Pushbuild · Data: [Airline Route Traffic API – US Passengers, Seats and Cargo by Route](https://pushbuild.com/apis/airline-route-traffic.html)

**Newark–Chicago Midway went from 322,232 passengers in 2019 to 10,282 in 2025 (-96.8%). Bozeman–Denver went from 306,176 to 667,832 (+118%), and Colorado Springs–Denver more than doubled.**

“TranStats provides one-stop shopping for intermodal transportation data for researchers, decision-makers, as well as the general public interested in transportation issues.”

— [Bureau of Transportation Statistics, T-100 Segment (All Carriers)](https://www.transtats.bts.gov/Fields.asp?gnoyr_VQ=FMG)

## Biggest drops (300,000+ passengers in 2019)

| Route | 2019 | 2025 | Change |
| --- | --- | --- | --- |
| EWR–MDW | 322,232 | 10,282 | -96.8% |
| FLL–JAX | 352,070 | 26,135 | -92.6% |
| ORD–SJC | 302,313 | 82,040 | -72.9% |
| LAX–OAK | 1,049,034 | 424,754 | -59.5% |
| LAX–SAN | 622,454 | 256,299 | -58.8% |
| LGA–MKE | 300,720 | 139,317 | -53.7% |
| SJC–SNA | 1,021,538 | 484,565 | -52.6% |
| LAX–MCI | 517,784 | 271,375 | -47.6% |
| LAX–STL | 425,349 | 223,276 | -47.5% |
| BUR–SJC | 757,599 | 414,371 | -45.3% |

## Biggest gains

| Route | 2019 | 2025 | Change |
| --- | --- | --- | --- |
| BZN–DEN | 306,176 | 667,832 | +118.1% |
| COS–DEN | 367,366 | 773,119 | +110.4% |
| MIA–RDU | 310,621 | 645,124 | +107.7% |
| BNA–PHX | 335,679 | 639,992 | +90.7% |
| LAS–ONT | 316,873 | 599,945 | +89.3% |
| DEN–MIA | 433,763 | 789,423 | +82.0% |
| MCO–SEA | 338,786 | 593,674 | +75.2% |
| LAS–MIA | 306,868 | 530,059 | +72.7% |
| AUS–SEA | 304,300 | 523,340 | +72.0% |
| MIA–PHX | 351,863 | 590,995 | +68.0% |

## Caveats

Why a route changed (a carrier leaving, a new hub) is not in this data.

## Sources

- [Bureau of Transportation Statistics, T-100 Segment (All Carriers)](https://www.transtats.bts.gov/Fields.asp?gnoyr_VQ=FMG), read through the Pushbuild [Airline Route Traffic API](https://pushbuild.com/apis/airline-route-traffic.html) on 2026-11-07

Data as of 2026-11-07. Every figure in this post is in the table above and the CSV below.

Download the data behind this post: [b4-t100-route-change-2019-2025.csv](https://pushbuild.com/apis/analysis/data/b4-t100-route-change-2019-2025.csv)

## Get this data

Every number in this post comes from the [Airline Route Traffic API – US Passengers, Seats and Cargo by Route](https://pushbuild.com/apis/airline-route-traffic.html). $0.0008 per row returned; every key gets $1 of free usage each month.

```
curl -X POST https://api.pushbuild.com/airline-route-traffic/run \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"airports": ["BOS"], "maxItems": 20}'
```

[API docs and key](https://pushbuild.com/apis/airline-route-traffic.html)[More analysis from this data](https://pushbuild.com/apis/analysis/api/airline-route-traffic/)Embed this chart

Free to reuse with the credit link. Paste this HTML into your page, or use the [SVG file](https://pushbuild.com/apis/analysis/air-routes-that-vanished-or-doubled/chart.svg).

Want a table like this in Google Sheets, refreshed on demand? Free script: [copy a web table into Google Sheets](https://pushbuild.com/free/scripts/website-table-to-sheets/).

## Related analysis

-

Flights · 2026-11-07

### [What were the busiest US domestic air routes in 2025?](https://pushbuild.com/apis/analysis/busiest-domestic-air-routes-vs-2019/)

New York JFK–Los Angeles was the busiest US domestic route in 2025, with 2,912,963 passengers, followed by LaGuardia–Chicago O'Hare (2,769,621) and…

-

Flights · 2026-11-07

### [Southwest left a quarter of its domestic seats empty in 2025](https://pushbuild.com/apis/analysis/airline-load-factor-2025/)

Southwest filled 74.3% of its domestic seats in 2025, the lowest of any large US airline; Delta filled…

-

Flights · 2026-11-07

### [Airlines reported 20,426 cracks to the FAA since January 2025](https://pushbuild.com/apis/analysis/faa-service-difficulty-reports-cracks/)

Of 118,407 mechanical-difficulty reports filed since January 2025, 20,426 describe a crack. The parts reported most were fuselage skin (6,782), seat…

Header photo: [Alf van Beem](https://commons.wikimedia.org/wiki/File:D-AIPZ_Lufthansa_Airbus_A320-211_takeoff_from_Schiphol_runway_36C_pic1.JPG), Public domain, via Wikimedia Commons.

---
As of 2026-11-07. Source: https://pushbuild.com/apis/analysis/air-routes-that-vanished-or-doubled/