Find flights
When to book
Airlines

Cheap flights from Belfast Intl Airport to Heidelberg from £109

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 20/12. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — FRA
13 Dez — 20 Dez1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Heidelberg

Keep the following information in mind while searching for Belfast Intl to Heidelberg flight deals. Data was last updated 13 November 2025.

Round-trip from

£427

One-way from

£109
27/12-3/1
  • 27/12-3/1
  • 3 total stops
  • 23h 10m total
  • Belfast to Heidelberg
Search Deals
20/12
  • 20/12
  • 2 total stops
  • 18h 30m total
  • Belfast to Heidelberg
Search Deals

Find flight deals from Belfast Intl to Heidelberg

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to Heidelberg
Explore the most affordable flight options available from Belfast Intl to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 November 2025.

Fr 21/1110:55BFS - FRA
2 stops20h 25mMultiple Airlines
So 30/1121:40FRA - BFS
1 stop10h 45mMultiple Airlines
Deal found 11/11£249
Sa 27/1222:25BFS - FRA
2 stops13h 05mMultiple Airlines
Sa 3/121:40FRA - BFS
1 stop10h 05mMultiple Airlines
Deal found 12/11£427

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl to Heidelberg 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 November 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Heidelberg that are best for you.

Fly from

Belfast Intl

Fly to

Heidelberg

Route

Depart

Return

Price

BelfastFrankfurt am Main

BFS - FRA

BFSFRA

Belfast Intl

Sa 27/12

22:25-12:30

2 stops13h 05m

Frankfurt am Main

Sa 3/1

21:40-06:45

1 stop10h 05m

£427

BelfastFrankfurt am Main

BFS - FRA

BFSFRA

Belfast Intl

Sa 20/12

22:25-17:55

2 stops18h 30m

£109

BelfastFrankfurt am Main

BFS - FRA

BFSFRA

Belfast Intl

Di 30/12

07:15-10:05

2 stops25h 50m

£144

BelfastFrankfurt am Main

BFS - FRA

BFSFRA

Belfast Intl

So 28/12

22:20-11:05

2 stops11h 45m

£211

BelfastFrankfurt am Main

BFS - FRA

BFSFRA

Belfast Intl

Mo 29/12

06:00-19:30

1 stop12h 30m

£221

BelfastFrankfurt am Main

BFS - FRA

BFSFRA

Belfast Intl

Sa 27/12

23:10-11:20

2 stops11h 10m

£238

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Best time to book a flight from Belfast Intl to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg from Belfast Intl 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 Belfast Intl Airport to Heidelberg
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Heidelberg

Get insights into the airlines that provide service to Heidelberg. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heidelberg. Reviews last updated 13 November 2025.
Check out reviews from past customers who have flown with KLM from Belfast Intl Airport to Heidelberg to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,410 reviews
Check prices

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.3

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,410 reviews
KLM
7.7
Good
1,410 reviews
Check prices

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.3

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Heidelberg. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Belfast Intl to Heidelberg that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to Heidelberg flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to Heidelberg?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Heidelberg.

  • Can I find deals for business class flights from Belfast Intl to Heidelberg?

    Yes. Cheapflights offers flight deals from Belfast Intl to Heidelberg by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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 Belfast Intl to Heidelberg

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Munich flights
Belfast City to Munich flights
Belfast Intl to Stuttgart flights
Belfast Intl to Frankfurt flights
Belfast City to Frankfurt flights
Belfast City to Stuttgart flights

Top airline flying from Belfast Intl to Heidelberg

Discover the top airline that operate flights from Belfast Intl to Heidelberg. 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 November 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£190Average£252FlexibilityNo cancel feeOn-time75%
Search KLM 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 Belfast Intl to Heidelberg?

Deals for Belfast Intl to Heidelberg flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Heidelberg?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast Intl to Heidelberg for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Belfast Intl to Heidelberg with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Belfast Intl to Heidelberg flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Belfast Intl to Heidelberg become cheaper?

Yes! Start tracking prices for Belfast Intl to Heidelberg flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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.