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PAO to HLN: distance & flight time
Palo Alto (Palo Alto Airport of Santa Clara County) → Helena (Helena Regional Airport)
817 mi
1,315 km · 710 nm
2h 15m
estimated nonstop flight time
+1h
time difference · heading northeast
See live PAO→HLN fares Phone-only fares on this route — call free
Flight time details
817 miles nonstop takes roughly 2h 15m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- PAO — Palo Alto Airport of Santa Clara County · Palo Alto, United States
- 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 PAO
- SFO · San Francisco International Airport18 mi away
- NUQ · Moffett Federal Airfield5 mi away
- SQL · San Carlos Airport8 mi away
- SJC · Norman Y. Mineta San Jose International Airport12 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 PAO from HLN?
The flight distance from Palo Alto (PAO) to Helena (HLN) is 817 miles (1,315 km, 710 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PAO to HLN?
A nonstop flight takes about 2h 15m 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 PAO to HLN?
Nonstop service on PAO–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 15m nonstop estimate.
What is the time difference between Palo Alto and Helena?
Helena is 1 hour ahead of Palo Alto.
What is the cheapest way to fly from PAO to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PAO–HLN that never appear on search engines, with no booking fees.
Why are some PAO to HLN fares phone-only?
Consolidator contracts let us sell certain PAO–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.