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YTH to HLN: distance & flight time
Thompson (Thompson Airport) → Helena (Helena Regional Airport)
878 mi
1,414 km · 763 nm
2h 23m
estimated nonstop flight time
-1h
time difference · heading southwest
See live YTH→HLN fares Phone-only fares on this route — call free
Flight time details
878 miles nonstop takes roughly 2h 23m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- YTH — Thompson Airport · Thompson, Canada
- HLN — Helena Regional Airport · Helena, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near YTH
- PIW · Pikwitonei Airport31 mi away
- YTD · Thicket Portage Airport34 mi away
- KES · Kelsey Airport55 mi away
- ZAC · York Landing Airport72 mi away
Near HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 mi away
Frequently asked questions
How far is YTH from HLN?
The flight distance from Thompson (YTH) to Helena (HLN) is 878 miles (1,414 km, 763 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YTH to HLN?
A nonstop flight takes about 2h 23m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from YTH to HLN?
Nonstop service on YTH–HLN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 2h 23m nonstop estimate.
What is the time difference between Thompson and Helena?
Helena is 1 hour behind Thompson.
What is the cheapest way to fly from YTH to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YTH–HLN that never appear on search engines, with no booking fees.
Why are some YTH to HLN fares phone-only?
Consolidator contracts let us sell certain YTH–HLN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.