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Cheap flights from Southampton to Alderney from £136

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 20/6. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ACI
15 Apr — 22 Apr1
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 16 March 2026.

Tue 31/314:55
SOU
-
ACI
Nonstop0h 55m
Aurigny Air
Sat 4/409:50
ACI
-
SOU
Nonstop0h 50m
Aurigny Air
Deal found 16/3£277
Fri 27/315:15
SOU
-
ACI
Nonstop0h 50m
Aurigny Air
Tue 31/309:50
ACI
-
SOU
Nonstop0h 50m
Aurigny Air
Deal found 12/3£297
Sun 26/411:20
SOU
-
ACI
Nonstop0h 55m
Aurigny Air
Sun 3/512:35
ACI
-
SOU
1 stop6h 50m
Aurigny Air
Deal found 12/3£302
Sun 29/315:45
SOU
-
ACI
Nonstop0h 55m
Aurigny Air
Thu 2/413:35
ACI
-
SOU
Nonstop0h 50m
Aurigny Air
Deal found 14/3£303
Thu 26/311:05
SOU
-
ACI
Nonstop0h 50m
Aurigny Air
Thu 26/314:00
ACI
-
SOU
Nonstop0h 45m
Aurigny Air
Deal found 15/3£303
Mon 13/414:55
SOU
-
ACI
Nonstop0h 55m
Aurigny Air
Mon 20/413:35
ACI
-
SOU
Nonstop0h 50m
Aurigny Air
Deal found 14/3£307
Wed 1/714:55
SOU
-
ACI
Nonstop0h 55m
Aurigny Air
Wed 15/709:50
ACI
-
SOU
Nonstop0h 50m
Aurigny Air
Deal found 12/3£310
Thu 28/511:20
SOU
-
ACI
Nonstop0h 55m
Aurigny Air
Mon 1/616:30
ACI
-
SOU
1 stop15h 00m
Aurigny Air
Deal found 12/3£315
Thu 28/511:20
SOU
-
ACI
Nonstop0h 55m
Aurigny Air
Sun 31/519:05
ACI
-
SOU
1 stop24h 20m
Aurigny Air
Deal found 12/3£326

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 16 March 2026.

Round-trip from

£277

One-way from

£136

Popular in

March

Cheapest in

November

Average price

£358
Aurigny Air
  • Aurigny Air
  • 26/4-3/5
  • Nonstop
  • 1h 45m total
  • Southampton to Alderney
Search Deals
Aurigny Air
  • Aurigny Air
  • 20/6
  • Nonstop
  • 0h 55m total
  • Southampton to Alderney
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£6 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
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 16 March 2026.
Use the filters below to find and compare flights from Southampton to Alderney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Tue 31/3

14:55-15:50

Nonstop0h 55m

Alderney The Blaye

Sat 4/4

09:50-10:40

Nonstop0h 50m

£277

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Sun 29/3

15:45-16:40

Nonstop0h 55m

Alderney The Blaye

Thu 2/4

13:35-14:25

Nonstop0h 50m

£303
Fastest return journey

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Thu 26/3

11:05-11:55

Nonstop0h 50m

Alderney The Blaye

Thu 26/3

14:00-14:45

Nonstop0h 45m

£303

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Wed 1/7

14:55-15:50

Nonstop0h 55m

Alderney The Blaye

Wed 15/7

09:50-10:40

Nonstop0h 50m

£310

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Thu 28/5

11:20-12:15

Nonstop0h 55m

Alderney The Blaye

Mon 1/6

16:30-07:30

1 stop15h 00m

£315

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Fri 27/3

15:15-16:05

Nonstop0h 50m

Alderney The Blaye

Tue 31/3

16:30-07:30

1 stop15h 00m

£320

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Thu 28/5

15:15-17:55

1 stop2h 40m

Alderney The Blaye

Sun 31/5

17:20-19:25

1 stop2h 05m

£342

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Sun 19/7

19:55-17:55

1 stop22h 00m

Alderney The Blaye

Wed 22/7

16:30-07:30

1 stop15h 00m

£442
Cheapest one-way

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Sat 20/6

15:45-16:40

Nonstop0h 55m

£136

SouthamptonAlderney

SOU - ACI

SOUACI

Southampton Eastleigh

Mon 15/6

14:55-15:50

Nonstop0h 55m

£150

Flights are sorted by cheapest return flights first.

Deals found on 16/3

Showing 1-10 of 16 resultsSorted by cheapest first
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 month to book a flight from Southampton to Alderney?

Currently, May is the cheapest month in which you can book a flight from Southampton to Alderney (average of £84). Flying from Southampton to Alderney in September is currently the most expensive (average of £135). 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.

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 is 1 flight 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 31 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 55m. 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 £215. You may be able to fly from Southampton to Alderney for 27% 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, May is the cheapest month in which you can book a flight from Southampton to Alderney (average of £84). Flying from Southampton to Alderney in September is currently the most expensive (average of £135). 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

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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 16 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Aurigny AirCheapest£215Average£302FlexibilityNo 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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