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Cheap flights from Southampton to Castletown from £117

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to Castletown departing on 25/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Southampton to Castletown

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:40 - 11:45SOU  Southampton Eastleigh-IOM Castletown Ronaldsway
15h 05m2 stops Palma de Mallorca Son Sant Joan Dublin
Multiple Airlines Logo
09:40 - 19:30IOM  Castletown Ronaldsway-SOU Southampton Eastleigh
9h 50m2 stops Manchester Dublin
£230Multiple Airlines
Mon, 7 Sep - Thu, 10 Sep
Aer Lingus Logo
20:00 - 11:45SOU  Southampton Eastleigh-IOM Castletown Ronaldsway
15h 45m1 stop Dublin
Aer Lingus Logo
12:20 - 08:40IOM  Castletown Ronaldsway-SOU Southampton Eastleigh
20h 20m1 stop Dublin
£239Aer Lingus
Sat, 29 Aug - Wed, 2 Sep
Multiple Airlines Logo
20:40 - 16:50SOU  Southampton Eastleigh-IOM Castletown Ronaldsway
20h 10m2 stops Palma de Mallorca Son Sant Joan Dublin
Multiple Airlines Logo
12:15 - 16:50IOM  Castletown Ronaldsway-SOU Southampton Eastleigh
4h 35m1 stop Dublin
£240Multiple Airlines
Mon, 7 Sep - Thu, 10 Sep
Multiple Airlines Logo
12:25 - 09:35SOU  Southampton Eastleigh-IOM Castletown Ronaldsway
21h 10m2 stops Belfast Intl London Gatwick
Multiple Airlines Logo
09:10 - 12:55IOM  Castletown Ronaldsway-SOU Southampton Eastleigh
27h 45m2 stops Manchester Palma de Mallorca Son Sant Joan
£241Multiple Airlines
Mon, 14 Sep - Mon, 21 Sep
Aer Lingus Logo
09:20 - 16:50SOU  Southampton Eastleigh-IOM Castletown Ronaldsway
7h 30m1 stop Dublin
Aer Lingus Logo
12:15 - 19:30IOM  Castletown Ronaldsway-SOU Southampton Eastleigh
7h 15m1 stop Dublin
£255Aer Lingus
Mon, 7 Sep - Thu, 10 Sep
Multiple Airlines Logo
20:00 - 11:45SOU  Southampton Eastleigh-IOM Castletown Ronaldsway
15h 45m1 stop Dublin
Multiple Airlines Logo
17:20 - 08:45IOM  Castletown Ronaldsway-SOU Southampton Eastleigh
15h 25m2 stops Dublin Faro
£270Multiple Airlines
Sat, 29 Aug - Wed, 2 Sep
Multiple Airlines Logo
17:20 - 09:10SOU  Southampton Eastleigh-IOM Castletown Ronaldsway
15h 50m2 stops Dublin Manchester
Multiple Airlines Logo
17:15 - 08:25IOM  Castletown Ronaldsway-SOU Southampton Eastleigh
15h 10m2 stops Manchester Belfast City
£284Multiple Airlines
Wed, 9 Sep - Sun, 13 Sep
Multiple Airlines Logo
17:20 - 09:10SOU  Southampton Eastleigh-IOM Castletown Ronaldsway
15h 50m2 stops Dublin Manchester
Multiple Airlines Logo
12:15 - 16:50IOM  Castletown Ronaldsway-SOU Southampton Eastleigh
4h 35m1 stop Dublin
£287Multiple Airlines
Wed, 9 Sep - Sun, 13 Sep
Multiple Airlines Logo
17:20 - 09:10SOU  Southampton Eastleigh-IOM Castletown Ronaldsway
15h 50m2 stops Dublin Manchester
Multiple Airlines Logo
17:15 - 20:05IOM  Castletown Ronaldsway-SOU Southampton Eastleigh
26h 50m3 stops Manchester Barcelona-El Prat Palma de Mallorca Son Sant Joan
£308Multiple Airlines
Wed, 9 Sep - Sun, 13 Sep
Multiple Airlines Logo
20:40 - 18:00SOU  Southampton Eastleigh-IOM Castletown Ronaldsway
21h 20m3 stops Palma de Mallorca Son Sant Joan Kastrup Copenhagen London Gatwick
Multiple Airlines Logo
08:35 - 19:30IOM  Castletown Ronaldsway-SOU Southampton Eastleigh
10h 55m2 stops Liverpool J. Lennon Dublin
£326Multiple Airlines
Mon, 14 Sep - Mon, 21 Sep

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Aer Lingus flights from Southampton to Castletown

Our best Aer Lingus deals on Southampton to Castletown flight tickets
Aer Lingus
29 Aug
SOU20:00Southampton Eastleigh
15h 45m
1 stop
IOM11:45Castletown Ronaldsway
2 Sept
IOM12:20Castletown Ronaldsway
20h 20m
1 stop
SOU08:40Southampton Eastleigh
£239
Aer Lingus
7 Sept
SOU09:20Southampton Eastleigh
7h 30m
1 stop
IOM16:50Castletown Ronaldsway
10 Sept
IOM12:15Castletown Ronaldsway
7h 15m
1 stop
SOU19:30Southampton Eastleigh
£255

British Airways flights from Southampton to Castletown

Our best British Airways deals on Southampton to Castletown flight tickets
British Airways
27 Oct
SOU15:15Southampton Eastleigh
23h 50m
1 stop
IOM15:05Castletown Ronaldsway
20 Dec
IOM09:50Castletown Ronaldsway
4h 40m
1 stop
SOU14:30Southampton Eastleigh
£480
British Airways
28 Oct
SOU08:55Southampton Eastleigh
6h 10m
1 stop
IOM15:05Castletown Ronaldsway
23 Dec
IOM12:25Castletown Ronaldsway
20h 00m
1 stop
SOU08:25Southampton Eastleigh
£513
British Airways
24 Oct
SOU10:15Southampton Eastleigh
27h 15m
1 stop
IOM13:30Castletown Ronaldsway
20 Dec
IOM09:50Castletown Ronaldsway
4h 40m
1 stop
SOU14:30Southampton Eastleigh
£522

momondo Fare Finder

 
Customise your flight search to find flights from Southampton to Castletown 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, momondo users made 279,928 searches. Data last updated 18 August 2026.
Use the filters below to find and compare flights from Southampton to Castletown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonCastletown

SOU Southampton Eastleigh - IOM Castletown Ronaldsway

SOUIOM

Southampton Eastleigh

Mon 7/9

20:40-11:45

2 stops15h 05m

Castletown Ronaldsway

Thu 10/9

09:40-19:30

2 stops9h 50m

£230

SouthamptonCastletown

SOU Southampton Eastleigh - IOM Castletown Ronaldsway

SOUIOM

Southampton Eastleigh

Sat 29/8

20:00-11:45

1 stop15h 45m

Castletown Ronaldsway

Wed 2/9

12:20-08:40

1 stop20h 20m

£239

SouthamptonCastletown

SOU Southampton Eastleigh - IOM Castletown Ronaldsway

SOUIOM

Southampton Eastleigh

Mon 7/9

20:40-16:50

2 stops20h 10m

Castletown Ronaldsway

Thu 10/9

12:15-16:50

1 stop4h 35m

£240

SouthamptonCastletown

SOU Southampton Eastleigh - IOM Castletown Ronaldsway

SOUIOM

Southampton Eastleigh

Mon 14/9

12:25-09:35

2 stops21h 10m

Castletown Ronaldsway

Mon 21/9

09:10-12:55

2 stops27h 45m

£241
Fastest return journey

SouthamptonCastletown

SOU Southampton Eastleigh - IOM Castletown Ronaldsway

SOUIOM

Southampton Eastleigh

Mon 7/9

09:20-16:50

1 stop7h 30m

Castletown Ronaldsway

Thu 10/9

12:15-19:30

1 stop7h 15m

£255

SouthamptonCastletown

SOU Southampton Eastleigh - IOM Castletown Ronaldsway

SOUIOM

Southampton Eastleigh

Sat 29/8

20:00-11:45

1 stop15h 45m

Castletown Ronaldsway

Wed 2/9

17:20-08:45

2 stops15h 25m

£270

SouthamptonCastletown

SOU Southampton Eastleigh - IOM Castletown Ronaldsway

SOUIOM

Southampton Eastleigh

Wed 9/9

17:20-09:10

2 stops15h 50m

Castletown Ronaldsway

Sun 13/9

17:15-08:25

2 stops15h 10m

£284

SouthamptonCastletown

SOU Southampton Eastleigh - IOM Castletown Ronaldsway

SOUIOM

Southampton Eastleigh

Wed 9/9

17:20-09:10

2 stops15h 50m

Castletown Ronaldsway

Sun 13/9

12:15-16:50

1 stop4h 35m

£287

SouthamptonCastletown

SOU Southampton Eastleigh - IOM Castletown Ronaldsway

SOUIOM

Southampton Eastleigh

Wed 9/9

17:20-09:10

2 stops15h 50m

Castletown Ronaldsway

Sun 13/9

17:15-20:05

3 stops26h 50m

£308

SouthamptonCastletown

SOU Southampton Eastleigh - IOM Castletown Ronaldsway

SOUIOM

Southampton Eastleigh

Mon 14/9

20:40-18:00

3 stops21h 20m

Castletown Ronaldsway

Mon 21/9

08:35-19:30

2 stops10h 55m

£326

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Castletown from

How to get the cheapest flight ticket from Southampton to Castletown

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Castletown?

The cheapest day to depart from Southampton to Castletown is on a Wednesday when prices can be found for as low as £118. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Southampton to Castletown for around £173.

What is the cheapest time of day to depart on your flight to Castletown?

The cheapest time of day to fly to Castletown is in the morning when flights can be purchased for as low as £123. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £207 on average. Flights to Castletown from Southampton at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

When to book flights from Southampton to Castletown

Are you open to changing your travel dates? Check out the ideal times to fly from Southampton to Castletown according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Southampton to Castletown (SOU to IOM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Southampton to Castletown

Best price found

£117

Fastest flight time

16h 00m

Direct flights

None
The best one-way flight to Castletown from Southampton in the past 72 hours is £117. The best return flight deal from Southampton to Castletown found on momondo in the last 72 hours is £230.
The fastest flight from Southampton to Castletown takes 16h 00m
There are no direct flights from Southampton to Castletown. There are no popular flight routes from Southampton to Castletown.
Search flight deals

Frequently asked questions about flying from Southampton to Castletown

  • How far is Southampton Eastleigh to Castletown Ronaldsway by plane?

    A flight from Southampton Eastleigh to Castletown Ronaldsway will travel around 257.7 mi. Flights usually cover this in 16h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Southampton Eastleigh Airport to Castletown Ronaldsway Airport?

    Prices for flights from Southampton Eastleigh Airport to Castletown Ronaldsway Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Southampton Eastleigh Airport to Castletown Ronaldsway Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Southampton Eastleigh Airport to Castletown Ronaldsway Airport.

  • What documentation or ID do you need to fly to Castletown Ronaldsway Airport?

    The required travel and health documents for your Castletown Ronaldsway Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Castletown Ronaldsway Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Castletown?

Book flights to Castletown if you plan to visit one of these locations
Douglas

Why use momondo?

Why should I use momondo to find a flight deal from Southampton to Castletown?

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 Castletown from Southampton.

Can I find flights from Southampton to Castletown with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Southampton to Castletown flights to just show those with flexible booking policies.

How can momondo help me find flights from Southampton to Castletown?

Once all potential Southampton to Castletown flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Southampton to Castletown right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Castletown from Southampton. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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