The halfway point between Helena Regional Airport and Lambert-St. Louis International Airport is:
Hidden Timber, South Dakota
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Halfway between HLN and STL
For a flight, the straight line geographic midpoint coordinates are 43° 11' 11" N and 100° 28' 44" W.
The city at the geographic halfway point from HLN to STL is Hidden Timber, South Dakota.
The closest zip code to the flight midpoint is 57570.
The closest major city that is roughly halfway is Lincoln, NE.
Helena Regional Airport
IATA: HLNICAO: KHLN
FAA: HLN
City: Helena
State: Montana
Zip code: 59601
Country: United States
Category: airports
related links
Lambert-St. Louis International Airport
IATA: STLICAO: KSTL
FAA: STL
City: Saint Louis
State: Missouri
Zip code: 63145
Country: United States
Category: airports
related links
Halfway point calculator
Travelmath helps you figure out the midpoint between two locations based on the driving directions from each starting point. You can find the closest town that is an equal distance from two cities. Use this tool to determine the best city to meet, or to look for interesting stops along the way if you're planning a long road trip and you need to take a break or stay overnight. Search for hotels at the midpoint city to split up your drive, or explore other nearby cities and discover local towns on your trip. If you're meeting a friend halfway in-between, you can figure out how far each person has to drive and how long it will take to arrive at the center. Even if you're separated by water, you can still calculate the straight line geographic midpoint to determine the closest flight distance.
