$573+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Missouri to Northern Ireland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 3, 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 3, 2025.
This oojo deal was found by Cheapflights users on 12/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 12/2. 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.
This oojo deal was found by Cheapflights users on 12/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 12/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 3, 2025.
Round-trip from | $573 (oojo) |
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Cheapflights Fare Finder
Use the filters below to find and compare flights from Missouri to Northern Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Wed 3/18
7:57 pm-2:15 pm
2 stops13h 18m
Belfast City
Mon 3/23
5:45 pm-10:20 pm
2 stops33h 35m
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Mon 1/12
6:44 pm-4:05 pm
2 stops15h 21m
Belfast City
Tue 1/20
6:35 am-6:16 pm
2 stops17h 41m
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Tue 4/14
6:08 am-10:35 am
2 stops22h 27m
Belfast City
Tue 4/21
9:35 am-10:22 pm
2 stops18h 47m
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Sat 1/24
12:06 pm-11:10 am
2 stops17h 04m
Belfast City
Sat 1/31
6:35 am-10:44 pm
2 stops22h 09m
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Wed 2/4
10:42 am-4:50 pm
2 stops24h 08m
Belfast City
Sun 2/8
5:20 pm-9:39 am
2 stops46h 19m
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Wed 1/28
5:09 pm-4:50 pm
2 stops17h 41m
Belfast City
Sun 2/1
5:20 pm-8:02 pm
2 stops32h 42m
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Tue 4/14
2:13 pm-1:00 pm
2 stops16h 47m
Belfast City
Sun 4/19
11:00 am-11:40 pm
2 stops18h 40m
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Thu 4/16
6:08 pm-3:30 pm
2 stops15h 22m
Belfast City
Tue 4/21
6:35 am-8:45 pm
2 stops20h 10m
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Mon 4/13
12:12 pm-4:55 pm
2 stops22h 43m
Belfast City
Wed 4/22
5:30 pm-5:31 pm
2 stops30h 01m
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Wed 2/4
2:12 pm-4:50 pm
2 stops20h 38m
Belfast City
Sun 2/8
5:20 pm-5:00 pm
2 stops29h 40m
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.
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 3, 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.