Find cheap flights from Ireland to Sofia

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Sofia

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Sofia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Sofia, as well as popular online travel agencies
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Cheap Flights from Ireland to Sofia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ireland to Sofia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ireland to Sofia

Multiple Airlines Logo
LHR-SOF
1267 mimulti-stop
Multiple Airlines Logo
SOF-LHR
1267 mimulti-stop
Multiple Airlines
Find Deal
Multiple Airlines Logo
LGW-SOF
1248 mimulti-stop
Multiple Airlines Logo
SOF-LGW
1248 mimulti-stop
Multiple Airlines
Find Deal
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KAYAK's insights & trends for flights to Sofia

Get data-powered insights and trends into flights to Sofia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Sofia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Sofia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Sofia is November, where tickets cost £127 on average for return flights. On the other hand, the most expensive months are August and December, where the average cost of tickets from Ireland is £246 and £220 respectively. For one-way flights, the best month to travel is November with an average price of £127.

How far in advance should I book a flight to Sofia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Sofia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know - Cheap tickets from Ireland to Sofia

Low seasonAugust
High seasonJuly
Best time to beat the crowds but there is an average 40% increase in price.
Most popular time to fly (21% more expensive on average)

FAQs - booking Sofia flights

  • How far is Sofia Airport from central Sofia?

    There are 4 miles between Sofia city centre and Sofia Airport.

  • What is the name of Sofia’s airport?

    When flying to Sofia, you'll arrive at Sofia Airport (SOF). The airport is also known as Sofia or Sofia Intl.

  • How much is a flight to Sofia?

    On average, a flight to Sofia costs £256. The cheapest price found on KAYAK in the last 2 weeks cost £103 and departed from Dublin Airport.

  • What is the cheapest day to fly to Sofia?

    Based on KAYAK data, the cheapest day to fly to Sofia is Tuesday where round-trip tickets can be as cheap as £110. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are £260 on average.

  • How does KAYAK find such low prices on flights to Sofia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Sofia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Sofia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Sofia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sofia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Sofia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sofia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Sofia?

    The cheapest time of day to fly to Sofia is generally in the morning, when round-trip flights cost £253 on average. The most expensive time of day to fly to Sofia is generally in the evening, which is peak travel time and where the average cost of a ticket is £354.

  • How many direct flights to Sofia are there each week?

    Each week there are around 45 direct flights from within Ireland to Sofia. The most common day for departures is Wednesday, with 20% of flights taking off on this day.

Top tips for finding cheap flights to Sofia

  • Looking for cheap airfare to Sofia? 25% of our users found round-trip tickets to Sofia for the following prices or less: Cheap flights to Sofia from Dublin £103
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Sofia flight deals.

Top airlines flying from Ireland to Sofia

 
See real verified KAYAK customer reviews for airlines flying to Sofia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Sofia. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Sofia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.8
RyanairOverall score based on 5121 reviews
5.6Entertainment
6.7Boarding
6.0Food
7.5Crew
6.5Comfort
Airline reviews

Flight was over an hour late. Boarding was really messy with long queues at the plane.

4.0 OkayJonathan, Jun 2025DUB - BRU
Read more Ryanair reviews

Flight was over an hour late. Boarding was really messy with long queues at the plane.

Cabin crew couldn’t be less interested. Cabin manager was the most arrogant and the rudest I’ve encountered in many years.

The worst flight ever. Sitting in plane for 4 hours delay and then they change crew. No water or food offered to any passengers including children in that time. Only 2 toilets out of 3 operating for flight with 200 passengers. Only enough food available for about 7 rows of seats depending where you sat you might be lucky. Cabin crew very unfriendly.

I couldn’t understand the aircraft tannoy announcements I was in seat 20C - nobody in our row could either. Speakers a bit too quiet plus messages read out too fast. Otherwise excellent flight. (Flight delayed by 50 mins)

The flight arrived within 15 minutes of schedule. We hate the cattle-like boarding process seen often in Europe. After your boarding pass is checked by the airline staff, you wait standing up in an area with no seating for several minutes.

Big delay on run way not much explanation why, missed a important meeting in Dublin, maybe if they did nt persist measuring everyone bag over 2 cm we would have got off on time.

The lady at the boarding gate was so rude. She was challenging people being in priority and looking them up and down as if they weren’t dressed for first class. This was Ryan air priority. We all sit in the same seats. She loudly called out to embarrass a man who she believed had cheated and got in the priority line. He had a valid priority ticket and even worked for Ryanair. Also challenging visas insisting people download them until they proved on the government website it wasn’t required to print. The Ryanair employee who was challenged said she is always like this. She also pulled people from regular boarding as they were fashionably dressed and upgraded them to priority and changed their seats. That was comical. I think she felt she should be working for Emirates first class, although they would t have stood for her rude behaviour

The punctuality of f the flight was super: we left on time and arrived about 20 minutes early - and the cabin crew were both friendly and efficient. The only downside was that Ryanair appears to have resumes its old obsession with sizing cabin bags again after a long and welcome absence.

Miserable staff did not want to be there. Very poor atmosphere boarding. Then just basic flight.

Flight details on public information screen were misleading and wrong.

We boarded the plane and waited for 30 minutes ultimately for them to cancel the flight due to engineering issues.

Love the little chocolate bars, and consumer rights in EU regarding stepped refunds when flights are delayed.

It was my first experience in business class. It was everything I expected and more. Service was impeccable, food was delicious and I felt rested once I arrived to London

The flight to Frankfurt was delayed. Consequently the connecting flight to Seattle could not be boarded. Lufthansa accommodated in a Cattle Class Flight where the Seats and foods were horrible. I had only Hobson’s Choice and boarded the flight and reached Seattle 3hours later than my scheduled arrival.

No Wi-Fi or food unless you pay an expensive fee.

Sorry, I’m not a fan of United. The seats are just too cramped and uncomfortable if you are traveling very far.

The agent, who took my mother to her gate, kept talking with one of her male coworkers and treating my mother like a sack of potatoes. She was ignoring my questions because she was too busy flirting with her male colleague. This was a very unprofessional behavior. We also had to wait for close to half an hour for an agent to arrive.

Very good flight, only problem is the boarding process where some peoples do not have manners and do not how to fly ( preparing your documents, oversized carry-ons, not understanding or feigning to not understand directives).

The plane was clean and the staff professional and courteous, as usual. The seat back was very hard and uncomfortable.

Liked nothing. Rude staff. Incompetent crew and workers. Wont fly with again

Everything you need to know for your flight to Sofia

Information on the airport you'll fly into in Sofia

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