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Cheap flights from Southampton to Alderney from £117

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ACI
31 Aug — 7 Sep1
1 adult

Cheap flight deals from Southampton to Alderney

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to Alderney (ACI). 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 26 August 2025.

Round-trip from

£229

One-way from

£117

Popular in

September

Cheapest in

January

Average price

£299

Good round-trip deal

£235 or less
Aurigny Air
  • Aurigny Air
  • 28/9-1/10
  • Nonstop
  • 1h 20m total
  • Southampton to Alderney
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Aurigny Air
  • Aurigny Air
  • 27/9
  • Nonstop
  • 0h 40m total
  • Southampton to Alderney
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£12 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Southampton Eastleigh to Alderney The Blaye.
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Find flight deals from Southampton to Alderney

Cheapest flights from Southampton to Alderney
Explore the most affordable flight options available from Southampton to Alderney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2025.

Sun 28/911:00SOU - ACI
Nonstop0h 40mAurigny Air
Wed 1/1009:50ACI - SOU
Nonstop0h 40mAurigny Air
Deal found 25/8£229
Thu 16/1015:10SOU - ACI
Nonstop0h 40mAurigny Air
Fri 17/1015:15ACI - SOU
Nonstop0h 40mAurigny Air
Deal found 25/8£242
Wed 10/911:05SOU - ACI
Nonstop0h 40mAurigny Air
Sat 13/915:15ACI - SOU
Nonstop0h 40mAurigny Air
Deal found 25/8£257
Fri 26/916:25SOU - ACI
Nonstop0h 40mAurigny Air
Mon 29/909:50ACI - SOU
Nonstop0h 40mAurigny Air
Deal found 24/8£263
Tue 23/911:05SOU - ACI
Nonstop0h 40mAurigny Air
Tue 30/909:50ACI - SOU
Nonstop0h 40mAurigny Air
Deal found 24/8£305
Sat 25/1016:25SOU - ACI
Nonstop0h 40mAurigny Air
Sat 1/1109:40ACI - SOU
Nonstop0h 45mAurigny Air
Deal found 26/8£307
Sun 31/811:00SOU - ACI
Nonstop0h 40mAurigny Air
Sun 7/917:45ACI - SOU
1 stop13h 45mAurigny Air
Deal found 24/8£325

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Alderney 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 26 August 2025.
Use the filters below to find and compare flights from Southampton to Alderney that are best for you.

Fly from

Southampton

Fly to

Alderney

Route

Depart

Return

Price

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Sun 28/9

11:00-11:40

Nonstop0h 40m

Alderney The Blaye

Wed 1/10

09:50-10:30

Nonstop0h 40m

£229

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Thu 16/10

15:10-15:50

Nonstop0h 40m

Alderney The Blaye

Fri 17/10

15:15-15:55

Nonstop0h 40m

£242

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Wed 10/9

11:05-11:45

Nonstop0h 40m

Alderney The Blaye

Sat 13/9

15:15-15:55

Nonstop0h 40m

£257

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Fri 26/9

16:25-17:05

Nonstop0h 40m

Alderney The Blaye

Mon 29/9

09:50-10:30

Nonstop0h 40m

£263

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Tue 23/9

11:05-11:45

Nonstop0h 40m

Alderney The Blaye

Tue 30/9

09:50-10:30

Nonstop0h 40m

£305

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Sat 25/10

16:25-17:05

Nonstop0h 40m

Alderney The Blaye

Sat 1/11

09:40-10:25

Nonstop0h 45m

£307

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Sat 27/9

11:00-11:40

Nonstop0h 40m

£117

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Fri 12/9

16:25-17:05

Nonstop0h 40m

£140

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Wed 24/9

11:05-11:45

Nonstop0h 40m

£140

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Thu 25/9

11:05-11:45

Nonstop0h 40m

£150

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 14 results
1
2

Best time to book a flight from Southampton to Alderney

Have a flexible travel schedule? Discover the best time to fly to Alderney from Southampton 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 Southampton to Alderney

What is the cheapest time of day to fly from SOU to ACI?

Find hourly flight availability from Southampton to Alderney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 August 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 15% on flights from Southampton to Alderney by exploring options for tickets in the morning.

Related info for your journey

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

  • What airports do I use to fly from Southampton to Alderney?

    You will need to book a flight from Southampton Eastleigh to Alderney The Blaye if you want to fly from Southampton to Alderney. At least 1 airline has flights from Eastleigh (SOU) to The Blaye (ACI) on a regular basis. There are 2 flights to Alderney from the Southampton airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SOU to ACI to be around 0h 40m.

  • How popular is this Southampton to Alderney flight route?

    This flight path from Southampton Eastleigh to Alderney The Blaye was viewed by 65 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Southampton to Alderney?

    Aurigny Air can get you from Southampton to Alderney in just under 40m. Your travel time will be generally consistent. The distance between Southampton and Alderney is about 94 mi. Generally, flights for this route are direct.

  • What is the cheapest airline to fly from Southampton to Alderney round-trip?

    Cheapflights users have booked flights from Southampton to Alderney round-trip from £175. You may be able to fly from Southampton to Alderney for 32% less than the average price by searching for this airline.

  • What are the cheapest flights from Southampton to Alderney?

    While on average a flight from Southampton to Alderney is generally £251, our data shows the cheapest flight currently is £155. When looking at the most popular route, (Southampton Eastleigh - Alderney The Blaye), you can expect to pay £229 for that flight.

  • Can I find deals for flights from Southampton to Alderney that include hotel bookings?

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

  • How can I find direct flights from Southampton to Alderney?

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

  • Can I find deals for business class flights from Southampton to Alderney?

    Yes. Cheapflights offers flight deals from Southampton to Alderney 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

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Alternative routes for Southampton to Alderney

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Southampton to Alderney

Discover the top airline that operate flights from Southampton to Alderney. 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 858,174 searches. Data last updated 26 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Aurigny AirCheapest£175Average£265FlexibilityNo cancel feeOn-time78%
Search Aurigny Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Southampton to Alderney?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Alderney from Southampton today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Southampton to Alderney?

Cheapflights helps you find that perfect flight to Alderney from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Southampton to Alderney with no change fees?

Certainly. Search results for flights to Alderney from Southampton shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Southampton to Alderney become cheaper?

Yes, Cheapflights offers price alerts on Southampton to Alderney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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