$625+ Cheap flights from Missouri to Northern Ireland
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — BFS
Jan 17 — Jan 241
1 adult, Economy
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1. Tell us where you want to go
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missouri to Northern Ireland
Cheapest flights from Missouri to Northern IrelandExplore the most affordable flight options available from Missouri to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
Explore the most affordable flight options available from Missouri to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:06 pmSTL - BHD
2 stops18h 09mAmerican Airlines
Wed 1/76:35 amBHD - STL
2 stops17h 59mAmerican Airlines
Deal found 12/16![American Airlines logo]()
$1,094
This Trip.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:05 pmSTL - BHD
2 stops25h 25mMultiple Airlines
Thu 1/87:25 amBHD - STL
2 stops22h 34mMultiple Airlines
Deal found 12/15![Multiple Airlines logo]()
$1,866
This American Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:54 pmSTL - BHD
2 stops18h 06mAmerican Airlines
Thu 1/86:35 amBHD - STL
2 stops20h 40mAmerican Airlines
Deal found 12/15![American Airlines logo]()
$1,959
Find flight deals from Missouri to Northern Ireland
Keep the following information in mind while searching for Missouri to Northern Ireland flight deals. Data was last updated December 18, 2025.
Round-trip from | $625 (oojo) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Northern Ireland 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 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Missouri to Northern Ireland that are best for you.
Fly from
Missouri
Fly to
Northern Ireland
Route
Depart
Return
Price
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Mon 1/12
6:44 pm-6:35 pm
2 stops17h 51m
Belfast City
Tue 1/20
6:35 am-6:16 pm
2 stops17h 41m
$625
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Wed 2/11
11:05 am-4:35 pm
2 stops23h 30m
Belfast City
Sun 2/15
9:10 am-10:54 pm
2 stops19h 44m
$844
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Fri 2/6
5:04 pm-5:15 pm
2 stops18h 11m
Belfast City
Tue 2/10
7:25 pm-9:15 pm
2 stops31h 50m
$844
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Wed 12/31
2:06 pm-2:15 pm
2 stops18h 09m
Belfast City
Wed 1/7
6:35 am-6:34 pm
2 stops17h 59m
$1,094
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Thu 1/29
1:56 pm-2:15 pm
2 stops42h 19m
Belfast City
Mon 2/2
11:30 am-9:27 pm
2 stops39h 57m
$1,274
Best time to book a flight from Missouri to Northern Ireland
Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Missouri with our price prediction graph.
Estimated round-trip 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 Northern Ireland
What is the cheapest time of day to fly from MO to NIR?
Find hourly flight availability from Missouri to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.
It’s optimal to fly from Missouri to Northern Ireland in the evening. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the afternoon.