Cheap flights from Southampton to Belfast from £40
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 Belfast departing on 5/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Southampton to Belfast
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 month to fly to Belfast?
The cheapest month to fly to Belfast from Southampton is in September. Flight prices, which tend to average around £68, are often lower during this time because this is during the off-season. If you aren’t able to travel to Belfast during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £70.
What is the cheapest day to depart on your flight to Belfast?
The cheapest day to depart on your flight to Belfast is on a Tuesday when prices can be found for as low as £61. This is often the case because there is less demand to fly during this day of the week. Flights from Southampton to Belfast on a Sunday will generally be more expensive and average around £71. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Belfast?
The cheapest time of day to fly to Belfast is in the morning when flights can be purchased for as low as £81. Flights to Belfast are more costly in the afternoon, with an average ticket price of £111. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Southampton Eastleigh to Belfast flight route?
Fly from Southampton Eastleigh to Belfast Intl for the best Southampton Eastleigh - Belfast flight prices
How far in advance should I book a flight to Belfast?
You are more likely to see cheaper flights to Belfast from Southampton when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast for around £85 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast from Southampton for as low as £68 on momondo.
What cabin class options are available on Southampton Eastleigh to Belfast flights?
There are 2 cabin classes available to choose from on Southampton Eastleigh to Belfast flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Southampton Eastleigh to Belfast?
Aer Lingus, easyJet, and British Airways are the most popular carriers operating from Southampton Eastleigh to Belfast
Which airlines fly to Belfast?
easyJet, British Airways and Aer Lingus are the top three most popular airlines that fly to Belfast from Southampton according to our data. easyJet is the first choice among our users, with 62% of people opting to fly with this airline when travelling to Belfast. Keep in mind that there are 7 different airlines that fly to Belfast on a routine basis, so you have a few additional options to choose from.
How many flights depart from Southampton to Belfast on average per day?
As of July 2025, 4 flights take off from Southampton and land in Belfast each day. The most common flight departure time for this route is 08:00, with 48% of daily flights taking off at midday.
How many flights depart from Southampton to Belfast on average per week?
As of July 2025, there are 30 flights per week flying from Southampton to Belfast. The most common day of the week flights depart is Fri, with 23% of flights taking off on this day.
Cheap Southampton to Belfast flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Southampton to Belfast
Best price found | £40 |
|---|---|
Fastest flight time | 1h 20m |
Direct flights | Mon, Tue, Thu, Fri, Sat and Sun |
Airports in Belfast | 2 airports |
How far is Southampton Eastleigh to Belfast by plane?
Southampton Eastleigh and Belfast are 317.1 mi apart from one another. In terms of flight time, this usually takes a little over 1h 20m.
When did momondo last update prices for flights from Southampton Eastleigh Airport to Belfast?
Prices for flights from Southampton Eastleigh Airport to Belfast refresh daily.
How many operators does momondo search for flights from Southampton Eastleigh Airport to Belfast?
As of July 2025, there are 2 operators available to choose from for flights from Southampton Eastleigh Airport to Belfast.
How old do you have to be to fly from Southampton Eastleigh Airport to Belfast?
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 Belfast.
What documentation or ID do you need to fly to Belfast?
The travel and health documents you'll need for your trip to Belfast may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Southampton to Belfast
Compare and see reviews for airlines that fly from Southampton to Belfast with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £33 | Free Cancellation | Rating 6.9 1,816 reviews | |||
| PriceFrom £53 | Free Cancellation | Rating 7.1 1,144 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Southampton to Belfast?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Southampton to Belfast. momondo saves you time and could save you money on your trip.
Can I find flights from Southampton to Belfast with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Southampton to Belfast flights to just show those with flexible booking policies.
How can momondo help me find flights from Southampton to Belfast?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Southampton to Belfast.
I’m not ready to book a flight from Southampton to Belfast right now. Can momondo alert me if prices change?
Price alerts on flights to Belfast from Southampton are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.