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Air Line State Park Trail

4.6 ★★★★★ 81 Google reviews · Running trail in Thompson, Connecticut · Posted hours

Runner's snapshot

Surface
Natural surface
Distance
Not reported
Shape
Not reported
Shade
Not reported
Access
Posted hours

Confirmed from Air Line State Park Trail's own listing, the park or land manager's website, and runner reviews. Blank cells mean we could not verify that fact — we would rather say "not reported" than invent one. There is no Easy / Moderate / Hard rating on this page on purpose: a one-word difficulty score tells you nothing about whether a trail suits your run. Surface, distance, shade and hours do.

Natural surfaceScenicDog-friendlyFlat & fastMile markersQuiet

State park offering a well-maintained hiking, biking, and running trail.

What runners say about Air Line State Park Trail

Pulled from public reviews of this trail (81 of them) — the things people bring up again and again, in their own words. Nothing here is written by us.

well-maintained 7 mentions

“Trail is in great condition, wonderful for bike riding, at least the sections between Pomfret and Kenyon Rd, Hampton!”

🏞️ beautiful scenery 5 mentions

“That being said, it is absolutely beautiful and surrounded by nature, especially a bit past the roadside area.”

🌾 quiet & peaceful 3 mentions

“Clean, peaceful, nice & flat for walking & biking!”

What a pretty, scenic hike! Easy, flat, out and back trail with lots of geocaches if you are into that. Very quiet, less traveled. Access to the tri-state marker is off the trail as well.

★★★★★ — Kathy , Dec 2020

Small parking area, so I recommend carpooling. Also, the trail starts out pretty rocky, so I recommend tougher shoes to avoid hurting your feet. That being said, it is absolutely beautiful and surrounded by nature, especially a bit past the roadside area.

★★★★★ — Kaitlin , Apr 2023

Great hiking rail trail. Terrain on trail is easy gets a bit more challenging if you take some of the side trails. Plenty of unique things to see along the trail.

★★★★★ — John , Mar 2017

Great linear park/trail. Easy access, lots of road crossings or parking. Great for hiking, trail running, biking, bird watching, etc.

★★★★★ — Padraic , Mar 2019

Excerpts from public Google reviews. Read all 81 reviews →

Trail conditions & character

What this trail is actually like underfoot and overhead, taken from its own listing and from reviews. Each one links to every other trail with the same character. Busy or quiet is reported as a plain fact, not a plus or a minus — a runner heading out alone at dawn often wants company on the path, and someone running intervals wants an empty one.

🏞️ Scenic views 5 mentions

“That being said, it is absolutely beautiful and surrounded by nature, especially a bit past the roadside area.”

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🐕 Dog-friendly 4 mentions

“Path had been converted with rocks at some points, so my dog wasn't too happy, but then it smoothed out.”

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Flat & fast 3 mentions

“Easy, flat, out and back trail with lots of geocaches if you are into that.”

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🤫 Quiet / uncrowded 3 mentions

“Clean, peaceful, nice & flat for walking & biking!”

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🌲 Natural surface / singletrack 2 mentions

“Also, the trail starts out pretty rocky, so I recommend tougher shoes to avoid hurting your feet.”

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📏 Mile markers 2 mentions

“Access to the tri-state marker is off the trail as well.”

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Plan your run at Air Line State Park Trail

The practical stuff

  • AccessPosted hours — posted hours below; park gates sometimes close earlier than the listing says
  • SurfaceNatural surface — easiest on the joints and the most fun, but expect roots, rocks and mud after rain
  • DistanceNot reported. Trail systems often quote total path mileage rather than a single loop, so measure the route you actually want before you drive out.
  • ShadeNot reported. Assume some of it is exposed and carry water in summer.
  • DogsWelcome, per reviewers. Leash rules vary by park — the trailhead sign is the authority.
  • Websitect.gov

Hours

Monday 7 AM–8 PM
Tuesday 7 AM–8 PM
Wednesday 7 AM–8 PM
Thursday 7 AM–8 PM
Friday 7 AM–8 PM
Saturday 7:30 AM–11:55 PM
Sunday 7:30 AM–11:55 PM

Posted hours for the park or trailhead. Gates and parking lots often close earlier than the trail itself, and seasonal hours change — worth a check before a pre-dawn or after-dark run.

Where to find Air Line State Park Trail

368-384 Sand Dam Rd, Thompson, CT 06277

Get directions

Running trails near Thompson

Other trails within easy driving distance — useful when this one is flooded, gated, or just not the run you had in mind today.

Air Line Riverside Dr Thompson

4.6 ★★★★★ 140 reviews

Thompson, CT

MixedScenicDog-friendly

Hiking, biking & horseback riding along a scenic, 50-mile linear trail that was once a railroad bed.

under a mile away

Air Line North State Park Trail

4.4 ★★★★☆ 41 reviews

North Grosvenor Dale, CT

Dog-friendly

Good for children, this park offers trails for walking and biking.

3.0 miles away

Douglas State Forest

4.6 ★★★★★ 1,239 reviews

Douglas, MA

Scenic

Woodland environs with a cedar swamp, plus swimming, boating, fishing, snowmobiling & hiking.

3.3 miles away

Quinebaug River Rail Trail

4.8 ★★★★★ 6 reviews

Dudley, MA

4.3 miles away

Ardlock Acres

4.4 ★★★★☆ 8 reviews

Dudley, MA

4.5 miles away

Southern New England Trunkline Trail

4.6 ★★★★★ 58 reviews

Douglas, MA

Natural surfaceScenicDog-friendly

Popular among hikers, bikers, and equestrians, this 22-mi. trail runs through 6 towns and 2 forests.

5.1 miles away

All running trails in Thompson, CT →

Nearby towns

Listing verified July 2026 from public records, the trail's own website and runner reviews. Trail conditions change — paths flood, gates close at dusk, and shaded woods stay muddy for days after rain. Something out of date? Report a correction. Manage this trail? Send us the details — it is free.