HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

$590+ Cheap flights from Idaho Falls (IDA) to Heathrow (LHR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — LHR
Jul 31 — Aug 71
From?
To?
Wed 7/31
Wed 8/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Leverage Cheapflights for Your Next Trip

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Idaho Falls to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 26, 2024.

Popular in

November

Cheapest in

February

Average price

$1,296

Round-trip from

$590
(Air Canada)
High demand for flights, 72% potential price rise
Search Deals
Best time to find cheap flights, 51% potential price drop
Search Deals
Average for round-trip flights in July 2024
Search Deals
From Idaho Falls Fanning Field to London Heathrow
Search Deals

What is the cheapest day to fly round-trip from Idaho Falls to London Heathrow Airport?

Wednesday is generally a great day to depart. Flying on this day could help you save up to 37%.

What is the cheapest month to fly from Idaho Falls to London Heathrow Airport?

February is one of the best times of the year to fly to London Heathrow Airport from Idaho Falls. Prices for February average $964 per person but you can even find prices for as low as $658. The most expensive prices can be found in the month of July. Opting for a February flight can save you 49% on your journey compared to booking in July

What is the cheapest time of day to fly from IDA to LHR?

Unlike in the morning, when flights are generally more expensive, you can save up to 23% on flights from Idaho Falls to London Heathrow Airport by exploring options for tickets at noon.

Cheap Idaho Falls to Heathrow flights in July & August 2024

Find cheap flight options from Idaho Falls to Heathrow specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 26, 2024.
The lowest fares we've come across on flights traveling from Idaho Falls to London in July and August 2024. Check back in a little while for more flight options.
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/306:11 amIDA - LHR
1 stop17h 14mAmerican Airlines
Sat 9/71:10 pmLHR - IDA
1 stop15h 32mAmerican Airlines
Deal found 7/25$1,013
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/301:41 pmIDA - LHR
2 stops16h 04mAmerican Airlines
Sat 9/710:05 amLHR - IDA
2 stops18h 37mAmerican Airlines
Deal found 7/24$1,018

Idaho Falls to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Idaho Falls and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.
The lowest fares we've come across on flights traveling from Idaho Falls to London in July and August 2024. Check back in a little while for more flight options.
This United deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/12:22 pmIDA - LHR
1 stop14h 58mUnited Airlines
Thu 10/3111:10 amLHR - IDA
2 stops36h 08mUnited Airlines
Deal found 7/24$596
This United deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/15:58 pmIDA - LHR
2 stops29h 47mUnited Airlines
Thu 10/3111:10 amLHR - IDA
2 stops36h 08mUnited Airlines
Deal found 7/24$600
This United deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/17:00 amIDA - LHR
1 stop22h 20mUnited Airlines
Thu 10/3111:35 amLHR - IDA
1 stop15h 39mUnited Airlines
Deal found 7/24$612
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/75:45 amIDA - LHR
1 stop21h 55mAmerican Airlines
Mon 10/218:50 amLHR - IDA
2 stops19h 37mAmerican Airlines
Deal found 7/25$632
This Finnair deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/21:41 pmIDA - LHR
1 stop13h 59mMultiple Airlines
Thu 9/121:05 pmLHR - IDA
1 stop15h 37mMultiple Airlines
Deal found 7/25$647
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/75:58 pmIDA - LHR
2 stops19h 42mUnited Airlines
Mon 10/213:50 pmLHR - IDA
2 stops36h 26mUnited Airlines
Deal found 7/25$650
This KLM deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/21:05 pmIDA - LHR
2 stops18h 45mKLM
Thu 9/1210:55 amLHR - IDA
1 stop18h 15mKLM
Deal found 7/25$652
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3110:55 amIDA - LHR
1 stop16h 45mUnited Airlines
Thu 11/1411:10 amLHR - IDA
2 stops37h 08mUnited Airlines
Deal found 7/24$653
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/11:05 pmIDA - LHR
1 stop14h 55mDelta
Fri 11/156:20 amLHR - IDA
2 stops22h 41mDelta
Deal found 7/24$655

Find flights from Idaho Falls to Heathrow within your budget

Customize your flight search to find flights from Idaho Falls to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$590 - $662

Route

Depart

Return

Price

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 1/7

2 stops17h 10m

London Heathrow

Tue 1/21

2 stops30h 03m

$590

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 1/7

1 stop15h 55m

London Heathrow

Tue 1/21

2 stops33h 23m

$596

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 10/1

1 stop22h 20m

London Heathrow

Thu 10/31

2 stops32h 21m

$603

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 10/1

2 stops19h 42m

London Heathrow

Thu 10/31

2 stops34h 41m

$607

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 10/1

1 stop22h 20m

London Heathrow

Thu 10/31

1 stop15h 39m

$612

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Mon 10/7

1 stop21h 55m

London Heathrow

Mon 10/21

2 stops19h 37m

$632

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Mon 9/2

1 stop13h 59m

London Heathrow

Thu 9/12

1 stop15h 37m

$647

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Mon 9/2

2 stops18h 45m

London Heathrow

Thu 9/12

1 stop18h 15m

$652

Idaho Falls Fanning FieldLondon Heathrow

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Mon 10/7

1 stop21h 55m

London Heathrow

Mon 10/21

1 stop19h 47m

$662

Flights are sorted by cheapest first

Deals found on 7/25

What is the cheapest day to fly from Idaho Falls to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Idaho Falls to Heathrow. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Idaho Falls to London Heathrow Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Idaho Falls to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Idaho Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated July 26, 2024.
To help decide which airline to fly from Idaho Falls to London, see what other customers have to say about United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,365 reviews

Entertainment

7.2

Comfort

7.9

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Alaska Airlines
8.1
Very good
9,365 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Entertainment

7.2

Comfort

7.9

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

KLM
7.9
Good
1,417 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Entertainment

7.2

Comfort

7.9

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

United Airlines
7.4
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Entertainment

7.2

Comfort

7.9

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

American Airlines
7.3
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,365 reviews

Entertainment

7.2

Comfort

7.9

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

A/C was not working on the ground so it was 110 degrees on the plane when we boarded and we sat there for almost 40 minutes because Austin’s gate system has not kept up with growth. Not Alaska’s fault 100% but it was miserable.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Idaho Falls to London Heathrow?

    Idaho Falls Fanning Field (IDA), located 3.8 mi from the city center, is the airport you fly out of when you book flights from Idaho Falls to London Heathrow. 2 airlines have flights from Fanning Field to London Heathrow on a regular basis. Booking flights from Idaho Falls Fanning Field to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

  • Can I find flights from Idaho Falls to London Heathrow Airport for under $600 on Cheapflights?

    Yes, there are multiple flights from Idaho Falls to London Heathrow Airport for under $600. The cheapest flight booked recently is on Multiple Airlines for just $590, but on average you can expect to pay $833.

  • What are the cheapest airlines flying from Idaho Falls to London Heathrow Airport round-trip?

    United Airlines, at $596, was found to be the cheapest airline from Idaho Falls to London Heathrow Airport.Alternate airlines to your destination round-trip include American Airlines and KLM. United Airlines is priced at 58% lower than the current average price of a flight leaving 3 months from now.

  • What does IDA to LHR mean?

    This is defined as Idaho Falls Fanning Field Airport (IDA) and London Heathrow Airport (LHR). Codes like London Heathrow Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Idaho Falls to Heathrow that include extra baggage allowance?

    The amount of baggage you can bring on your Idaho Falls to Heathrow flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Idaho Falls to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Idaho Falls to Heathrow flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Idaho Falls to Heathrow that include hotel bookings?

    Yes. In addition to deals on Idaho Falls to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho Falls to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to Heathrow.

  • Can I find deals for business class flights from Idaho Falls to Heathrow?

    Yes. Cheapflights offers flight deals from Idaho Falls to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Idaho Falls to Heathrow that allow pets onboard?

    Many airlines flying from Idaho Falls to Heathrow offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Idaho Falls to Heathrow?

    Yes, you can often find last-minute deals on Idaho Falls to Heathrow flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Idaho Falls to London Heathrow Airport flight deals updated?

    The Idaho Falls to London Heathrow Airport flight deals you see on this page were last updated on 7/25.

  • What is the cheapest month to book a flight from Idaho Falls to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Idaho Falls to London Heathrow Airport (average of $652). Flying from Idaho Falls to London Heathrow Airport in June is currently the most expensive (average of $1,095). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho Falls to Heathrow
See prices for flight routes from nearby airports that may be better suited for you.

Boise to Heathrow flights
Spokane to Heathrow flights
Boise to Gatwick flights
Spokane to Gatwick flights
Boise to London City flights
Jackson to Heathrow flights
Spokane to London City flights
Jackson to Gatwick flights

Top 2 airlines flying from Idaho Falls to Heathrow

Discover the top 2 airlines that operate flights from Idaho Falls to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$675Average$773FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$702Average$916FlexibilityNo cancel feeOn-time69%
Philadelphia to Orlando flights
Boston to London flights
Los Angeles to Italy flights
Dallas to Chicago flights
Detroit to Chicago flights
New York to San Diego flights
Seattle to San Francisco flights
San Francisco to Hyderabad flights
Nashville to Los Angeles flights
Chicago O'Hare Intl Airport to Orlando flights
Salt Lake City to Las Vegas flights
Idaho Falls to Lihue flights

Search flights from Idaho Falls to Heathrow by cabin class

Find flights from Idaho Falls to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Abha
Flights to Komatsu
Flights to Skardu
Flights to Laayoune Hassan I
Flights to Aqaba King Hussein Intl
Flights to Nampula
Flights to Bourgas
Flights to Riverton
Flights to Alpena Phelps/Collins
Flights to Palmas
Flights to Newport State
Flights to Antofagasta Cerro Moreno
Flights to Nuku‘alofa Fua'Amotu Intl
Flights to Ndola
Flights to Fort Dodge
Flights to Miri
Flights to Rhinelander Oneida County
Flights to Seattle Lake Union Spb
Flights to Portsmouth Pease Intl
Flights to Tumbes
Flights to Jigiga
Flights to Diyarbakir
Flights to Akureyri
Flights to Brainerd Crow Wing County
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines