How do I get Price Alerts for flights from Idaho Falls to United Kingdom?

You can take advantage of momondo’s Price Alerts by first searching for your flights to Idaho Falls from United Kingdom . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How can I save money on flights from Idaho Falls to United Kingdom with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to United Kingdom?

Prices for flights from Idaho Falls Fanning Field Airport to United Kingdom are refreshed on a daily basis.

How old do you have to be to fly from Idaho Falls Fanning Field Airport to United Kingdom?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho Falls Fanning Field Airport to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£646 Cheap Flights from Idaho Falls to the United Kingdom in 2026

1 adult

0 bags

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Find the cheapest flights from Idaho Falls to the United Kingdom

Round-trip

Cheap return flights

Enter your travel dates to find the best prices.

16:14 - 13:00

IDA

LHR

13h 46m

1 stop

08:15 - 21:20

LHR

IDA

20h 05m

2 stops

£646Multiple Airlines

Tue, 18 Aug - Tue, 25 Aug

07:00 - 12:35

IDA

LHR

22h 35m

1 stop

07:25 - 15:23

LHR

IDA

38h 58m

2 stops

£656United Airlines

Wed, 7 Oct - Tue, 13 Oct

14:25 - 12:35

IDA

LHR

15h 10m

1 stop

14:05 - 13:29

LHR

IDA

30h 24m

2 stops

£658United Airlines

Wed, 7 Oct - Tue, 13 Oct

17:53 - 20:40

IDA

LHR

19h 47m

2 stops

07:30 - 17:16

LHR

IDA

16h 46m

2 stops

£664United Airlines

Sat, 12 Sep - Wed, 23 Sep

13:46 - 15:05

IDA

LHR

18h 19m

1 stop

17:00 - 15:35

LHR

IDA

29h 35m

1 stop

£664Alaska Airlines

Wed, 7 Oct - Tue, 13 Oct

13:43 - 11:15

IDA

LHR

14h 32m

1 stop

12:55 - 21:22

LHR

IDA

15h 27m

1 stop

£673Multiple Airlines

Wed, 7 Oct - Tue, 13 Oct

14:25 - 12:25

IDA

LHR

15h 00m

1 stop

07:30 - 17:16

LHR

IDA

16h 46m

2 stops

£698United Airlines

Sat, 12 Sep - Wed, 23 Sep

06:00 - 07:10

IDA

LHR

18h 10m

2 stops

06:30 - 22:19

LHR

IDA

22h 49m

2 stops

£707Delta

Wed, 7 Oct - Tue, 13 Oct

12:20 - 08:30

IDA

LHR

13h 10m

1 stop

14:50 - 21:18

LHR

IDA

13h 28m

1 stop

£711United Airlines

Sat, 12 Sep - Wed, 23 Sep

17:53 - 07:45

IDA

LHR

30h 52m

2 stops

11:25 - 17:16

LHR

IDA

12h 51m

1 stop

£714United Airlines

Sat, 12 Sep - Sat, 26 Sep

Delta flights from Idaho Falls to United Kingdom

Our best Delta deals on Idaho Falls to United Kingdom flight tickets

Delta

7 Oct

IDA06:00Idaho Falls Fanning Field

18h 10m

2 stops

LHR07:10London Heathrow

13 Oct

LHR06:30London Heathrow

22h 49m

2 stops

IDA22:19Idaho Falls Fanning Field

£707

Delta

18 Aug

IDA15:17Idaho Falls Fanning Field

14h 48m

2 stops

LHR13:05London Heathrow

25 Aug

LHR10:45London Heathrow

18h 47m

2 stops

IDA22:32Idaho Falls Fanning Field

£728

United Airlines flights from Idaho Falls to United Kingdom

Our best United Airlines deals on Idaho Falls to United Kingdom flight tickets

United Airlines

7 Oct

IDA07:00Idaho Falls Fanning Field

22h 35m

1 stop

LHR12:35London Heathrow

13 Oct

LHR07:25London Heathrow

38h 58m

2 stops

IDA15:23Idaho Falls Fanning Field

£656

United Airlines

7 Oct

IDA14:25Idaho Falls Fanning Field

15h 10m

1 stop

LHR12:35London Heathrow

13 Oct

LHR14:05London Heathrow

30h 24m

2 stops

IDA13:29Idaho Falls Fanning Field

£658

United Airlines

12 Sept

IDA17:53Idaho Falls Fanning Field

19h 47m

2 stops

LHR20:40London Heathrow

23 Sept

LHR07:30London Heathrow

16h 46m

2 stops

IDA17:16Idaho Falls Fanning Field

£664

momondo Fare Finder

Use the filters below to find and compare flights from Idaho Falls to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 18/8

16:14-13:00

1 stop13h 46m

London Heathrow

Tue 25/8

08:15-21:20

2 stops20h 05m

£646

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 7/10

07:00-12:35

1 stop22h 35m

London Heathrow

Tue 13/10

07:25-15:23

2 stops38h 58m

£656

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 7/10

14:25-12:35

1 stop15h 10m

London Heathrow

Tue 13/10

14:05-13:29

2 stops30h 24m

£658

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sat 12/9

17:53-20:40

2 stops19h 47m

London Heathrow

Wed 23/9

07:30-17:16

2 stops16h 46m

£664

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 7/10

13:46-15:05

1 stop18h 19m

London Heathrow

Tue 13/10

17:00-15:35

1 stop29h 35m

£664

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 7/10

13:43-11:15

1 stop14h 32m

London Heathrow

Tue 13/10

12:55-21:22

1 stop15h 27m

£673

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sat 12/9

14:25-12:25

1 stop15h 00m

London Heathrow

Wed 23/9

07:30-17:16

2 stops16h 46m

£698

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 7/10

06:00-07:10

2 stops18h 10m

London Heathrow

Tue 13/10

06:30-22:19

2 stops22h 49m

£707

Fastest return journey

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sat 12/9

12:20-08:30

1 stop13h 10m

London Heathrow

Wed 23/9

14:50-21:18

1 stop13h 28m

£711

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sat 12/9

17:53-07:45

2 stops30h 52m

London Heathrow

Sat 26/9

11:25-17:16

1 stop12h 51m

£714

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Cheap Idaho Falls to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho Falls to United Kingdom

Fastest flight time	11h 42m
Direct flights	None

The fastest flight from Idaho Falls to United Kingdom takes 11h 42m

There are no direct flights from Idaho Falls to United Kingdom. There are no popular flight routes from Idaho Falls to United Kingdom.

Search flight deals

Frequently asked questions about flying from Idaho Falls to the United Kingdom

When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to United Kingdom?
Prices for flights from Idaho Falls Fanning Field Airport to United Kingdom are refreshed on a daily basis.
How old do you have to be to fly from Idaho Falls Fanning Field Airport to United Kingdom?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho Falls Fanning Field Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Idaho Falls to the United Kingdom

How do I get Price Alerts for flights from Idaho Falls to United Kingdom?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Idaho Falls from United Kingdom. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Idaho Falls to United Kingdom with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from Idaho Falls to United Kingdom?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Idaho Falls.

Can I find flights from Idaho Falls to United Kingdom with flexible booking policies on momondo?

Flights from Idaho Falls to United Kingdom with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Idaho Falls to United Kingdom?

momondo provides multiple filters to help you find the best flight to United Kingdom from Idaho Falls. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Idaho Falls to United Kingdom right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Idaho Falls to United Kingdom flights. All you need is a valid email address and we will do the rest; it is that quick and easy.