$625+ Cheap flights from Missouri to Belfast
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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Missouri to Belfast 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Belfast
Keep the following information in mind while searching for Missouri to Belfast flight deals. Data was last updated November 3, 2025.
Round-trip from | $625 (American Airlines) |
|---|
Find flight deals from Missouri to Belfast
Cheapest flights from Missouri to BelfastExplore the most affordable flight options available from Missouri to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.
Explore the most affordable flight options available from Missouri to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.
This American Airlines deal was found by Cheapflights users on 11/1. 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 KLM deal was found by Cheapflights users on 11/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Ovago deal was found by Cheapflights users on 11/1. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cathay Pacific deal was found by Cheapflights users on 11/1. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Missouri to Belfast that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Mon 12/1
3:43 pm-2:15 pm
2 stops16h 32m
Belfast City
Sun 12/7
9:10 am-7:05 pm
2 stops15h 55m
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Mon 1/12
3:37 pm-2:15 pm
2 stops16h 38m
Belfast City
Tue 1/20
6:35 am-9:15 pm
2 stops20h 40m
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Sun 3/1
6:10 am-4:50 pm
2 stops28h 40m
Belfast City
Thu 3/5
5:20 pm-5:43 pm
2 stops30h 23m
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Fri 5/1
10:00 pm-3:30 pm
1 stop11h 30m
Belfast City
Tue 5/12
1:40 pm-7:30 pm
1 stop11h 50m
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Fri 5/1
4:39 pm-3:30 pm
2 stops16h 51m
Belfast City
Tue 5/12
9:35 am-7:30 pm
1 stop15h 55m
St. LouisBelfast
STL - BHD
STLBHD
Lambert-St Louis
Thu 3/12
9:28 am-10:20 am
2 stops19h 52m
Belfast City
Thu 3/26
6:35 am-9:48 pm
2 stops20h 13m
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Fri 3/27
10:10 am-9:00 pm
2 stops29h 50m
Belfast City
Tue 3/31
6:30 am-9:08 pm
2 stops20h 38m
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Fri 3/27
12:29 pm-10:30 am
2 stops17h 01m
Belfast City
Tue 3/31
6:35 am-6:06 pm
2 stops17h 31m
St. LouisBelfast
STL - BFS
STLBFS
Lambert-St Louis
Thu 3/12
12:15 pm-1:40 pm
2 stops20h 25m
Belfast Intl
Thu 3/26
6:25 pm-11:50 pm
2 stops34h 25m
Kansas CityBelfast
MCI - BHD
MCIBHD
Kansas City
Sat 1/3
8:02 pm-10:20 am
2 stops32h 18m
Belfast City
Fri 5/29
9:30 am-8:16 pm
2 stops16h 46m
Best time to book a flight from Missouri to Belfast
Have a flexible travel schedule? Discover the best time to fly to Belfast from Missouri with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Missouri to Belfast
What is the cheapest time of day to fly from MO to BFS?
Find hourly flight availability from Missouri to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.
When flying from Missouri to Belfast, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 12% versus a flight in the morning.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 Missouri to Belfast
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Missouri to Belfast
Discover the top airline that operate flights from Missouri to Belfast. 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 2,558,603 searches. Data last updated November 3, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$674 | Average$832 | FlexibilityNo cancel fee | On-time71% |