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Cheap flights from Castletown to London Heathrow Airport from £101

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
IOM — LHR
10 Apr — 17 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Castletown to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Castletown to Heathrow
Explore the most affordable flight options available from Castletown to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 March 2026.

Fri 8/517:20
IOM
-
LHR
1 stop14h 45m
Aer Lingus
Tue 19/521:10
LHR
-
IOM
1 stop14h 35m
Aer Lingus
Deal found 8/3£231
Sat 25/417:20
IOM
-
LHR
1 stop14h 45m
Aer Lingus
Sat 2/521:10
LHR
-
IOM
1 stop19h 30m
Aer Lingus
Deal found 9/3£233
Fri 8/515:30
IOM
-
LHR
2 stops23h 00m
Multiple Airlines
Tue 19/512:00
LHR
-
IOM
1 stop4h 40m
Multiple Airlines
Deal found 8/3£235
Thu 21/511:30
IOM
-
LHR
Nonstop1h 35m
Loganair
Fri 22/513:55
LHR
-
IOM
Nonstop1h 30m
Loganair
Deal found 9/3£240
Sat 25/417:20
IOM
-
LHR
1 stop14h 45m
Aer Lingus
Sun 3/522:00
LHR
-
IOM
1 stop13h 45m
Aer Lingus
Deal found 9/3£243
Thu 23/417:20
IOM
-
LHR
1 stop14h 45m
Aer Lingus
Thu 30/409:50
LHR
-
IOM
1 stop6h 50m
Aer Lingus
Deal found 9/3£246
Wed 22/409:30
IOM
-
LHR
1 stop5h 30m
British Airways
Fri 24/410:25
LHR
-
IOM
1 stop7h 20m
British Airways
Deal found 10/3£250
Wed 22/409:30
IOM
-
LHR
1 stop5h 30m
British Airways
Wed 29/406:55
LHR
-
IOM
1 stop4h 45m
British Airways
Deal found 8/3£251
Tue 21/411:30
IOM
-
LHR
Nonstop1h 35m
Multiple Airlines
Wed 22/406:55
LHR
-
IOM
1 stop4h 45m
Multiple Airlines
Deal found 10/3£254
Thu 23/407:05
IOM
-
LHR
1 stop4h 55m
British Airways
Thu 30/406:55
LHR
-
IOM
1 stop6h 30m
British Airways
Deal found 9/3£255
Tue 21/411:30
IOM
-
LHR
Nonstop1h 35m
Loganair
Tue 28/413:55
LHR
-
IOM
Nonstop1h 30m
Loganair
Deal found 7/3£256

Find flight deals from Castletown to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Castletown (IOM) 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 11 March 2026.

Round-trip from

£228

One-way from

£101

Popular in

June

Cheapest in

February

Average price

£137

Good round-trip deal

£250 or less
Aer Lingus
  • Aer Lingus
  • 20/4-27/4
  • 2 total stops
  • 7h 50m total
  • Castletown to London
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27/4
  • 27/4
  • 2 total stops
  • 11h 45m total
  • Castletown to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£33 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Castletown Ronaldsway to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Castletown 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 858,174 searches. Data last updated 11 March 2026.
Use the filters below to find and compare flights from Castletown to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

CastletownLondon

IOM - LHR

IOMLHR

Castletown Ronaldsway

Thu 30/4

15:20-21:00

1 stop5h 40m

London Heathrow

Mon 11/5

06:45-11:50

1 stop5h 05m

£274

CastletownLondon

IOM - LHR

IOMLHR

Castletown Ronaldsway

Fri 8/5

15:35-21:10

1 stop5h 35m

London Heathrow

Sun 10/5

07:45-16:15

1 stop8h 30m

£282

CastletownLondon

IOM - LHR

IOMLHR

Castletown Ronaldsway

Thu 11/6

15:20-21:00

1 stop5h 40m

London Heathrow

Mon 22/6

06:45-11:50

1 stop5h 05m

£283
Cheapest one-way

CastletownLondon

IOM - LHR

IOMLHR

Castletown Ronaldsway

Fri 22/5

19:10-11:15

1 stop16h 05m

£109
Fastest single journey

CastletownLondon

IOM - LHR

IOMLHR

Castletown Ronaldsway

Tue 31/3

11:30-13:05

Nonstop1h 35m

£138

CastletownLondon

IOM - LHR

IOMLHR

Castletown Ronaldsway

Sun 28/6

14:05-21:00

1 stop6h 55m

£141

CastletownLondon

IOM - LHR

IOMLHR

Castletown Ronaldsway

Sun 28/6

13:10-14:45

Nonstop1h 35m

£147

CastletownLondon

IOM - LHR

IOMLHR

Castletown Ronaldsway

Mon 30/3

09:40-21:15

1 stop11h 35m

£155

CastletownLondon

IOM - LHR

IOMLHR

Castletown Ronaldsway

Wed 1/4

12:15-14:15

3 stops26h 00m

£161

CastletownLondon

IOM - LHR

IOMLHR

Castletown Ronaldsway

Tue 31/3

07:05-22:40

2 stops15h 35m

£164

Flights are sorted by cheapest return flights first.

Deals found on 7/3

Sorted by cheapest first

Best time to book a flight from Castletown to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Castletown with our price prediction graph.
Estimated return 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.

Cheapflights Insights

Everything you need to know about your flight from Castletown to London Heathrow Airport

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

Find hourly flight availability from Castletown to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 March 2026.

When flying from Castletown to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Castletown 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 Castletown to London Heathrow?

    Most people fly from Castletown Ronaldsway (IOM) if they book a flight from Castletown to London Heathrow. On average, Ronaldsway has 3 outbound flights to London Heathrow per day from 0 airlines. Castletown Ronaldsway is conveniently located just 1.4 mi from Castletown’s city center.

  • How long is the flight from Castletown to London Heathrow Airport?

    Departing from Castletown to London Heathrow Airport will take you 5h 40m. The distance between Castletown and London Heathrow Airport is about 251 mi.

  • What are the most reliable airlines from Castletown to London Heathrow Airport?

    The top 3 most reliable airlines when flying from Castletown to London Heathrow Airport are Loganair (81%), KLM (81%) and British Airways (81%).

  • What are the cheapest flights from Castletown to London Heathrow Airport?

    While on average a flight from Castletown to London Heathrow Airport is generally £250, our data shows the cheapest flight currently is £158. When looking at the most popular route, (Castletown Ronaldsway - London Heathrow), you can expect to pay £240 for that flight.

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

    Yes. In addition to deals on Castletown to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Castletown to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Castletown 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Northampton
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Chelmsford
Eastbourne
Ipswich
Swindon
Bedford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Castletown to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Castletown to London City flights
Castletown to Gatwick flights
Castletown to Luton flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Castletown to Heathrow?

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Why should you use Cheapflights to find cheap flight tickets from Castletown to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Castletown to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Castletown to Heathrow with no change fees?

Yes, we can. To see specific flights from Castletown to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Castletown to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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