Need help booking?
Unpublished phone-only deals available
HLN to EAS: distance & flight time
Helena (Helena Regional Airport) → San Sebastian (San Sebastian Airport)
4,902 mi
7,889 km · 4,260 nm
10h 5m
estimated nonstop flight time
+8h
time difference · heading northeast
See live HLN→EAS fares Phone-only fares on this route — call free
Flight time details
4,902 miles nonstop takes roughly 10h 5m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- HLN — Helena Regional Airport · Helena, United States
- EAS — San Sebastian Airport · San Sebastian, Spain
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 EAS
- BIQ · Biarritz-Anglet-Bayonne Airport15 mi away
- PNA · Pamplona Airport41 mi away
- BIO · Bilbao Airport56 mi away
- VIT · Vitoria/Foronda Airport57 mi away
Frequently asked questions
How far is HLN from EAS?
The flight distance from Helena (HLN) to San Sebastian (EAS) is 4,902 miles (7,889 km, 4,260 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLN to EAS?
A nonstop flight takes about 10h 5m 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 San Sebastian?
San Sebastian is 8 hours ahead of Helena.
What is the cheapest way to fly from HLN to EAS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLN–EAS that never appear on search engines, with no booking fees.