Find flights
When to book
FAQs

Cheap flights from Northern Ireland to Southeast Europe from £87

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ATH
12 Nov — 19 Nov1
1 adult
1 adult, Economy

Find flight deals from Northern Ireland to Southeast Europe

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Southeast Europe
Explore the most affordable flight options available from Northern Ireland to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 October 2025.

Tue 25/1116:50BFS - OTP
1 stop8h 25mMultiple Airlines
Tue 2/1215:35OTP - BFS
1 stop18h 45mMultiple Airlines
Deal found 11/10£87
Thu 27/1116:30BFS - OTP
1 stop8h 45mMultiple Airlines
Thu 4/1211:55OTP - BFS
1 stop8h 25mMultiple Airlines
Deal found 13/10£103
Mon 24/1106:40BFS - OTP
1 stop6h 05mMultiple Airlines
Thu 27/1122:50OTP - BFS
1 stop10h 35mMultiple Airlines
Deal found 13/10£112
Sun 12/1017:30BFS - OTP
1 stop25h 40mMultiple Airlines
Wed 15/1019:35OTP - BFS
1 stop21h 15mMultiple Airlines
Deal found 11/10£158
Sun 2/1105:45BFS - ATH
1 stop16h 25mMultiple Airlines
Wed 5/1121:55ATH - BFS
1 stop13h 25mMultiple Airlines
Deal found 11/10£164
Tue 14/1015:45BFS - DBV
1 stop6h 50mMultiple Airlines
Sun 19/1013:00DBV - BFS
1 stop21h 45mMultiple Airlines
Deal found 11/10£165
Sun 12/1017:30BFS - OTP
1 stop13h 25mMultiple Airlines
Thu 16/1005:45OTP - BFS
1 stop11h 05mMultiple Airlines
Deal found 11/10£171
Tue 28/1017:05BFS - CLJ
2 stops24h 20mMultiple Airlines
Sat 1/1118:40CLJ - BFS
2 stops22h 00mMultiple Airlines
Deal found 12/10£189
Mon 20/1021:55BFS - DBV
1 stop11h 45mMultiple Airlines
Mon 27/1021:00DBV - BFS
2 stops35h 30mMultiple Airlines
Deal found 13/10£191
Mon 20/1009:05BHD - DBV
2 stops23h 50mMultiple Airlines
Mon 27/1021:00DBV - BHD
2 stops15h 30mMultiple Airlines
Deal found 13/10£240
Fri 12/1221:30BFS - DBV
3 stops21h 00mMultiple Airlines
Thu 18/1206:40DBV - BFS
2 stops17h 10mMultiple Airlines
Deal found 11/10£252
Sat 20/1209:25BHD - ATH
2 stops22h 10mMultiple Airlines
Sat 3/109:55ATH - BHD
2 stops24h 15mMultiple Airlines
Deal found 11/10£303

Cheap flight deals from Northern Ireland to Southeast Europe

Keep the following information in mind while searching for Northern Ireland to Southeast Europe flight deals. Data was last updated 13 October 2025.

Round-trip from

£87

Popular in

April

Cheapest in

February

Average price

£325
25/11-2/12
  • 25/11-2/12
  • 2 total stops
  • 27h 10m total
  • Northern Ireland to Southeast Europe
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£11 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Southeast Europe 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 13 October 2025.
Use the filters below to find and compare flights from Northern Ireland to Southeast Europe that are best for you.

Fly from

Northern Ireland

Fly to

Southeast Europe

Route

Depart

Return

Price

BelfastBucharest

BFS - OTP

BFSOTP

Belfast Intl

Tue 25/11

16:50-03:15

1 stop8h 25m

Bucharest Otopeni Intl

Tue 2/12

15:35-08:20

1 stop18h 45m

£87

BelfastBucharest

BFS - OTP

BFSOTP

Belfast Intl

Thu 27/11

16:30-03:15

1 stop8h 45m

Bucharest Otopeni Intl

Thu 4/12

11:55-18:20

1 stop8h 25m

£103

BelfastBucharest

BFS - OTP

BFSOTP

Belfast Intl

Mon 24/11

06:40-14:45

1 stop6h 05m

Bucharest Otopeni Intl

Thu 27/11

22:50-07:25

1 stop10h 35m

£112

BelfastAthens

BFS - ATH

BFSATH

Belfast Intl

Tue 10/2

06:00-20:35

1 stop12h 35m

Athens Eleftherios V.

Tue 17/2

21:00-10:45

1 stop15h 45m

£154

BelfastAthens

BFS - ATH

BFSATH

Belfast Intl

Sun 2/11

05:45-00:10

1 stop16h 25m

Athens Eleftherios V.

Wed 5/11

21:55-09:20

1 stop13h 25m

£164

BelfastCluj Napoca

BFS - CLJ

BFSCLJ

Belfast Intl

Tue 28/10

17:05-19:25

2 stops24h 20m

Cluj Napoca

Sat 1/11

18:40-14:40

2 stops22h 00m

£189

BelfastAthens

BHD - ATH

BHDATH

Belfast City

Tue 10/2

12:15-09:15

2 stops19h 00m

Athens Eleftherios V.

Tue 17/2

10:25-20:30

1 stop12h 05m

£198

BelfastBucharest

BFS - OTP

BFSOTP

Belfast Intl

Wed 1/4

08:30-20:45

1 stop10h 15m

Bucharest Otopeni Intl

Sun 5/4

16:05-12:00

2 stops21h 55m

£220

BelfastDubrovnik

BFS - DBV

BFSDBV

Belfast Intl

Fri 12/12

18:00-19:30

2 stops24h 30m

Dubrovnik

Thu 18/12

06:40-22:50

2 stops17h 10m

£236

BelfastAthens

BHD - ATH

BHDATH

Belfast City

Tue 10/3

10:00-23:10

1 stop11h 10m

Athens Eleftherios V.

Wed 11/3

07:50-16:45

1 stop10h 55m

£260

Flights are sorted by cheapest return flights first.

Deals found on 12/10

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Northern Ireland to Southeast Europe

Have a flexible travel schedule? Discover the best time to fly to Southeast Europe from Northern Ireland 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 Northern Ireland to Southeast Europe

What is the cheapest month to book a flight from Northern Ireland to Southeast Europe?

Currently, December is the cheapest month in which you can book a flight from Northern Ireland to Southeast Europe (average of £147). Flying from Northern Ireland to Southeast Europe in August is currently the most expensive (average of £341). 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 NIR to YMH?

Find hourly flight availability from Northern Ireland to Southeast Europe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 October 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 26% on flights from Northern Ireland to Southeast Europe by exploring options for tickets in the evening.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Southeast Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Northern Ireland to Southeast Europe?

    Airlines like British Airways fly from Northern Ireland to Southeast Europe in about 11h 10m. The time it takes to get you to your destination can typically vary by up to . The distance between Northern Ireland and Southeast Europe is about 1807 mi.

  • What are the cheapest airlines to fly from Northern Ireland to Southeast Europe one-way?

    One-way options have recently been found by users for as low as £123 on easyJet. Other airlines that offer cheap prices include British Airways from £284 and KLM from £286 one-way.

  • Can I find deals for flights from Northern Ireland to Southeast Europe that include hotel bookings?

    Yes. In addition to deals on Northern Ireland to Southeast Europe flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Northern Ireland to Southeast Europe?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Southeast Europe.

  • Can I find deals for business class flights from Northern Ireland to Southeast Europe?

    Yes. Cheapflights offers flight deals from Northern Ireland to Southeast Europe 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 Northern Ireland to Southeast Europe?

    Currently, December is the cheapest month in which you can book a flight from Northern Ireland to Southeast Europe (average of £147). Flying from Northern Ireland to Southeast Europe in August is currently the most expensive (average of £341). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Northern Ireland to Southeast Europe

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Istanbul flights
Gatwick to Istanbul flights
London City to Istanbul flights
Luton to Istanbul flights
Heathrow to Madrid flights
Stansted to Istanbul flights
Heathrow to Lisbon flights
Gatwick to Madrid flights
Heathrow to Leonardo da Vinci/Fiumicino flights
London City to Leonardo da Vinci/Fiumicino flights
Luton to Charles de Gaulle flights
Gatwick to Charles de Gaulle flights
Heathrow to Charles de Gaulle flights
Gatwick to Leonardo da Vinci/Fiumicino flights
Gatwick to Lisbon flights
Gatwick to Amsterdam flights
Gatwick to Barcelona-El Prat flights
Luton to Amsterdam flights
Stansted to Amsterdam flights
London City to Charles de Gaulle flights
Heathrow to Amsterdam flights
Heathrow to Edinburgh flights
London City to Amsterdam flights
Heathrow to Athens flights
Heathrow to Barcelona-El Prat flights
Stansted to Madrid flights
Gatwick to Belfast Intl flights
Luton to Lisbon flights
Stansted to Edinburgh flights
Gatwick to Malpensa flights
Gatwick to Edinburgh flights
Luton to Frederic Chopin flights
Heathrow to Málaga flights
Luton to Edinburgh flights
Stansted to Lisbon flights
Southend to Amsterdam flights
Gatwick to Linate flights
Stansted to Beauvais-Tille flights
Luton to Barcelona-El Prat flights
Gatwick to Prague flights
Heathrow to Malpensa flights
Heathrow to Orly flights
Luton to Malpensa flights
Gatwick to Dublin flights
Stansted to Barcelona-El Prat flights
Stansted to Charles de Gaulle flights
Heathrow to Budapest flights
Heathrow to Dublin flights
Heathrow to Frederic Chopin flights
Stansted to Sabiha Gokcen flights

Top 3 airlines flying from Northern Ireland to Southeast Europe

Discover the top 3 airlines that operate flights from Northern Ireland to Southeast Europe. 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 13 October 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£135Average£254FlexibilityNo cancel feeOn-time86%
Search easyJet flights
KLMCheapest£157Average£342FlexibilityNo cancel feeOn-time75%
Search KLM flights
Jet2Cheapest£178Average£339FlexibilityNo cancel feeOn-timeN/A
Search Jet2 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 Northern Ireland to Southeast Europe?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Northern Ireland to Southeast Europe. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Southeast Europe?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southeast Europe from Northern Ireland.

Can Cheapflights find flights from Northern Ireland to Southeast Europe with no change fees?

Certainly. Search results for flights to Southeast Europe from Northern Ireland 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 Northern Ireland to Southeast Europe become cheaper?

Not ready to book yet? You can track prices for flights from Northern Ireland to Southeast Europe on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.