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Cheap flights from Southampton to Alderney from £270

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ACI
2 Jan — 9 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Alderney

Enter your travel dates to find the best prices.

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 3 December 2025.

Sat 6/1215:15SOU - ACI
Nonstop0h 50mAurigny Air
Sun 7/1209:40ACI - SOU
Nonstop0h 45mAurigny Air
Deal found 2/12£270
Wed 17/1211:05SOU - ACI
Nonstop0h 50mAurigny Air
Sun 21/1214:00ACI - SOU
Nonstop0h 45mAurigny Air
Deal found 2/12£302
Thu 11/1211:05SOU - ACI
Nonstop0h 50mAurigny Air
Thu 11/1214:00ACI - SOU
Nonstop0h 45mAurigny Air
Deal found 2/12£308
Sat 6/1209:30SOU - ACI
2 stops23h 45mMultiple Airlines
Sun 7/1216:45ACI - SOU
1 stop3h 30mMultiple Airlines
Deal found 2/12£507
Wed 17/1208:00SOU - ACI
1 stop23h 45mMultiple Airlines
Sun 21/1212:20ACI - SOU
2 stops31h 00mMultiple Airlines
Deal found 2/12£622
Thu 11/1211:05SOU - ACI
Nonstop0h 50mMultiple Airlines
Thu 11/1218:15ACI - SOU
2 stops21h 35mMultiple Airlines
Deal found 2/12£862

Find 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 3 December 2025.

Round-trip from

£298

Popular in

August

Cheapest in

January

Average price

£239
Aurigny Air
  • Aurigny Air
  • 12/1-16/1
  • 1 total stop
  • 25h 40m total
  • Southampton to Alderney
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 3 December 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

Mon 12/1

11:05-11:55

Nonstop0h 50m

Alderney The Blaye

Fri 16/1

18:15-19:05

1 stop24h 50m

£298

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Wed 17/12

11:05-11:55

Nonstop0h 50m

Alderney The Blaye

Sun 21/12

14:00-14:45

Nonstop0h 45m

£302

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Wed 17/12

08:00-07:45

1 stop23h 45m

Alderney The Blaye

Sun 21/12

12:20-19:20

2 stops31h 00m

£622

Flights are sorted by cheapest return flights first.

Deals found on 2/12

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 month to book a flight from Southampton to Alderney?

Currently, October is the cheapest month in which you can book a flight from Southampton to Alderney (average of £86). Flying from Southampton to Alderney in June is currently the most expensive (average of £134). 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.

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 3 December 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 26% 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 50m.

  • How popular is this Southampton to Alderney flight route?

    This flight path from Southampton Eastleigh to Alderney The Blaye was viewed by 50 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 50m. 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 £185. You may be able to fly from Southampton to Alderney for 30% less than the average price by searching for this airline.

  • 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.

  • What is the cheapest month to book a flight from Southampton to Alderney?

    Currently, October is the cheapest month in which you can book a flight from Southampton to Alderney (average of £86). Flying from Southampton to Alderney in June is currently the most expensive (average of £134). 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

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Alternative routes for Southampton to Alderney

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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 3 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Aurigny AirCheapest£189Average£276FlexibilityNo 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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