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HLN to AVR: distance & flight time
Helena (Helena Regional Airport) → Alverca (Alverca Air Base)
4,861 mi
7,823 km · 4,224 nm
10h
estimated nonstop flight time
+7h
time difference · heading northeast
See live HLN→AVR fares Phone-only fares on this route — call free
Flight time details
4,861 miles nonstop takes roughly 10h gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- HLN — Helena Regional Airport · Helena, United States
- AVR — Alverca Air Base · Alverca, Portugal
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 HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 mi away
Near AVR
- LIS · Humberto Delgado Airport (Lisbon Portela Airport)9 mi away
- CAT · Cascais Airport21 mi away
- QLR · Monte Real Air Base66 mi away
- BYJ · Beja Airport / Airbase81 mi away
Frequently asked questions
How far is HLN from AVR?
The flight distance from Helena (HLN) to Alverca (AVR) is 4,861 miles (7,823 km, 4,224 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to AVR?
A nonstop flight takes about 10h gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Helena and Alverca?
Alverca is 7 hours ahead of Helena.
What is the cheapest way to fly from HLN to AVR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–AVR that never appear on search engines, with no booking fees.