Cheap flights Cardiff — Southampton from $209

Q: How long is the flight from Cardiff to Southampton?

Approximate flight time — 40m.

Q: How much do flights from Cardiff to Southampton cost?

The minimum price over 3 months — from $209 on 25.11.2026.

Q: Which airlines fly from Cardiff to Southampton?

This route is served by 1 airline: Aer Lingus.

Q: From which airports does Cardiff operate flights?

From Cardiff: CWL (Cardiff Airport).

Q: To which airports in Southampton do flights arrive?

To Southampton: SOU (Southampton Airport).

Q: Which day of the week is cheapest?

The cheapest day of the week — Wednesday.

Q: When is the best time to buy tickets Cardiff — Southampton?

Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.

How many travellers?

Adults

12+ years

Children

2–11 years

Infants

under 2

Choose your departure date

Cheapest: $209 on 25.11.2026

Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.

November 2026

December 2026

January 2027

Prices found for 1 of 90 days. Prices update as more travellers search. Click any date to search live.

Depart

—

Return

—

Cheapest flights found

25 Nov 2026, Wed

Aer Lingus EI 3621

15:15

CWL Cardiff Airport

18:45

SOU Southampton Airport

3h 30m 2 stops

View this ticket

Route characteristics

Distance

139 km

Flight time

40m

Time difference

+0h

Minimum price

from $209 (25.11.2026)

Average price

$209

Maximum price

$209

Cheapest day

Wednesday

Departure airports (1)

CWL Cardiff Airport

Arrival airports (1)

SOU Southampton Airport

Airlines (1)

EI Aer Lingus

Agencies (1)

Mytrip.com

Airlines — cheapest prices 1

Aer Lingus

1 flights · 1 days

$209

Where to buy tickets 1

Mytrip.com

1 tickets · 1 days

from $209

Airports

From — Cardiff (1)

CWL Cardiff Airport

To — Southampton (1)

SOU Southampton Airport

Other destinations from Cardiff

Frequently asked questions about the route Cardiff — Southampton

How long is the flight from Cardiff to Southampton?

Approximate flight time — 40m. This is an average for a direct flight. With connections, the time may be longer.

What is the distance from Cardiff to Southampton?

The straight-line distance — 139 km.

How much do flights from Cardiff to Southampton cost?

The minimum price over 3 months — from $209 on 25.11.2026.

What is the average ticket price?

The average price — $209. Range: $209 — $209.

What is the time difference between Cardiff and Southampton?

The difference — +0h.

From which airports does Cardiff operate flights?

From Cardiff: CWL (Cardiff Airport).

To which airports in Southampton do flights arrive?

To Southampton: SOU (Southampton Airport).

Which airlines fly this route?

This route is served by 1 airline: Aer Lingus.

Which day of the week is cheapest?

The cheapest day of the week — Wednesday.

When is the best time to buy tickets?

Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.

How do I book flights?

Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.

About the route Cardiff — Southampton

Flights Cardiff — Southampton is a popular route. The straight-line distance is 139 km. Flight time 40m. Time difference +0h.

From Cardiff (CWL) flights depart from 1 airport: CWL. To Southampton (SOU) — 1 arrival airport: SOU.

1 airline operate on this route: Aer Lingus.

The minimum price for the next 3 months — from $209 (25.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $209, ranging from $209 to $209. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Wednesday.

Other destinations in United Kingdom from Cardiff

Cheap flights Cardiff — Southampton

From — Cardiff (1)

To — Southampton (1)

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