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Cheap flights from Missouri to Belfast Intl Airport from £825

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BFS
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Missouri to Belfast Intl

Keep the following information in mind while searching for Missouri to Belfast Intl flight deals. Data was last updated 12 September 2025.

Round-trip from

£825
26/10-2/11
  • 26/10-2/11
  • 6 total stops
  • 48h 16m total
  • Missouri to Belfast
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Find flight deals from Missouri to Belfast Intl

Cheapest flights from Missouri to Belfast Intl
Explore the most affordable flight options available from Missouri to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Sun 26/1016:50STL - BFS
3 stops24h 05mMultiple Airlines
Sun 2/1105:45BFS - STL
3 stops24h 11mMultiple Airlines
Deal found 11/9£825
Fri 26/913:30STL - BFS
2 stops16h 25mMultiple Airlines
Sat 4/1012:35BFS - STL
2 stops30h 55mMultiple Airlines
Deal found 10/9£853
Mon 27/1016:05STL - BFS
3 stops25h 30mMultiple Airlines
Mon 3/1108:40BFS - STL
3 stops21h 16mMultiple Airlines
Deal found 11/9£1,212
Mon 29/916:05STL - BFS
2 stops18h 05mMultiple Airlines
Thu 2/1021:55BFS - STL
3 stops27h 43mMultiple Airlines
Deal found 10/9£1,348

Cheapflights Fare Finder

 
Customise your flight search to find flights from Missouri to Belfast Intl 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 12 September 2025.
Use the filters below to find and compare flights from Missouri to Belfast Intl Airport that are best for you.

Fly from

Missouri

Fly to

Belfast Intl

Route

Depart

Return

Price

St. LouisBelfast

STL - BFS

STLBFS

Lambert-St Louis

Sun 26/10

16:50-21:55

3 stops24h 05m

Belfast Intl

Sun 2/11

05:45-00:56

3 stops24h 11m

£825

St. LouisBelfast

STL - BFS

STLBFS

Lambert-St Louis

Fri 26/9

13:30-11:55

2 stops16h 25m

Belfast Intl

Sat 4/10

12:35-13:30

2 stops30h 55m

£853

St. LouisBelfast

STL - BFS

STLBFS

Lambert-St Louis

Mon 27/10

16:05-22:35

3 stops25h 30m

Belfast Intl

Mon 3/11

08:40-23:56

3 stops21h 16m

£1,212

St. LouisBelfast

STL - BFS

STLBFS

Lambert-St Louis

Mon 29/9

16:05-16:10

2 stops18h 05m

Belfast Intl

Thu 2/10

21:55-19:38

3 stops27h 43m

£1,348

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Best time to book a flight from Missouri to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Missouri 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 Missouri to Belfast Intl Airport
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Related info for your journey

Find useful and relevant information for your journey from Missouri to Belfast Intl. 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 Missouri to Belfast Intl that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Missouri to Belfast Intl 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 Missouri to Belfast Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Missouri to Belfast Intl Airport (average of £67). Flying from Missouri to Belfast Intl Airport in July is currently the most expensive (average of £90). 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

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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Certainly. Search results for flights to Belfast Intl from Missouri shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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