Cheap flights from London-Heathrow to Mammoth Lakes
Cheap return flights from London-Heathrow to Mammoth Lakes
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Mammoth Lakes flight facts
What you need to know
What are the cheapest airlines?
- British Airways
- American Airlines
- Alaska Airlines
These airlines usually offer the cheapest flights from London-Heathrow to Mammoth Lakes.
What airlines fly indirectly?
- United Airlines
- Delta Air Lines
- Southwest Airlines
These airlines fly from London-Heathrow to Mammoth Lakes, but you’ll have at least one layover.
How long is the flight?
12 hours
This is the shortest flight time from London-Heathrow to Mammoth Lakes.
Alternative flights from the UK to Mammoth Lakes
Check out prices for other routes
Alternative flights from London-Heathrow
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-Heathrow/Mammoth Lakes route. There are around 35 flights on any given week from the UK to Mammoth Lakes 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-Heathrow to Mammoth Lakes
Tips and advice from our flight experts
You've searched for flights from London-Heathrow to Mammoth Lakes. We've found 25 flights and compared them to give you the best offer. British Airways is, on average, the cheapest for this route. Look out for them! The cheapest offer we've found is a one-way ticket for £73 from London-Heathrow to Mammoth Lakes on 18/04/2026 at 23:45.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 8,800 km flight from London-Heathrow to Mammoth Lakes.
To find the best offers, book at least 2-3 months in advance. Consider traveling in the off-peak season. Look for British Airways for budget options. The average flight duration is around 12 hours. After selecting an offer, fill out your information, proceed to payment, and consider booking a hotel with us or using our flight + hotel service to save time and money.
Other popular destinations near Mammoth Lakes
Where other people are flying to
