Cheap flights from London to Helena
Cheap return flights from London to Helena
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Helena flight facts
What you need to know
What are the cheapest airlines?
- British Airways
- American Airlines
- Delta Air Lines
These airlines usually offer the cheapest flights from London to Helena.
What airlines fly indirectly?
- United Airlines
- Alaska Airlines
- Southwest Airlines
These airlines fly from London to Helena, but you’ll have at least one layover.
How long is the flight?
12 hours 30 minutes
This is the shortest flight time from London to Helena.
Alternative flights from the UK to Helena
Check out prices for other routes
Alternative flights from London
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the London/Helena route. There are around 35 flights on any given week from the UK to Helena and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from London to Helena
Tips and advice from our flight experts
You've searched for flights from London to Helena. We've found 25 flights and compared them to give you the best offer. On average, British Airways is the cheapest for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for the route London to Helena on 25/04/2026 at 10:10 for £85.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 15 airlines that operate the 7,800 km flight from London to Helena.
To find the best offers, book in advance, especially during off-peak seasons. Last-minute deals can be risky. Consider flying with American Airlines, which is known for affordable rates on this route. The average flight duration is around 12 hours 30 minutes. After selecting an offer, fill out your information and proceed to payment. Don't forget to check our flight + hotel service to book everything at once, saving you time and money.
Other popular destinations near Helena
Where other people are flying to
