Cheap flights from Southampton to Idaho Falls
Cheap return flights from Southampton to Idaho Falls
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Idaho Falls flight facts
What you need to know
What are the cheapest airlines?
- Ryanair
- EasyJet
- Alaska Airlines
These airlines usually offer the cheapest flights from Southampton to Idaho Falls.
What airlines fly indirectly?
- Delta Airlines
- American Airlines
- United Airlines
These airlines fly from Southampton to Idaho Falls, but you’ll have at least one layover.
How long is the flight?
12 hours
This is the shortest flight time from Southampton to Idaho Falls.
Alternative flights from the UK to Idaho Falls
Check out prices for other routes
Alternative flights from Southampton
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 Southampton/Idaho Falls route. There are around 35 flights on any given week from the UK to Idaho Falls 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 Southampton to Idaho Falls
Tips and advice from our flight experts
You've searched for flights from Southampton to Idaho Falls. We've found 15 flights and compared multiple options to give you the best offer. On average, Ryanair is the cheapest airline for this route, so keep an eye out for them. The cheapest offer we've found is a one-way ticket for £55 from Southampton to Idaho Falls on 11/03/2026 at 09:45.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 8 airlines that operate the 7,800 km flight from Southampton to Idaho Falls.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Ryanair is a popular and affordable choice for this route, with an average flight duration of 12 hours. After selecting an offer, fill out your information, proceed with payment, and consider booking a hotel with us or using our flight + hotel service to save time and money.
Other popular destinations near Idaho Falls
Where other people are flying to
