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Cheap flights from Missouri to Belfast from £299

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Belfast departing on 10/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:50 - 21:55
STL
-
BFS
24h 05m
3 stops
Multiple Airlines Logo
09:35 - 15:24
BFS
-
STL
35h 49m
3 stops
£2,166Multiple Airlines
Sun, 22 Mar - Sun, 29 Mar

momondo Fare Finder

 
Customise your flight search to find flights from Missouri to Belfast Intl Airport 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, momondo users made 279,928 searches. Data last updated 7 February 2026.
Use the filters below to find and compare flights from Missouri to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBelfast

STL - BFS

STLBFS

Lambert-St Louis

Sun 22/3

16:50-21:55

3 stops24h 05m

Belfast Intl

Sun 29/3

09:35-15:24

3 stops35h 49m

£2,166

Kansas CityBelfast

MCI - BFS

MCIBFS

Kansas City

Sun 10/5

17:11-07:05

3 stops55h 54m

£299

Kansas CityBelfast

MCI - BFS

MCIBFS

Kansas City

Sun 10/5

06:00-20:15

2 stops32h 15m

£445

Kansas CityBelfast

MCI - BFS

MCIBFS

Kansas City

Fri 13/3

18:23-23:50

3 stops48h 27m

£557

Kansas CityBelfast

MCI - BFS

MCIBFS

Kansas City

Fri 13/3

05:45-08:55

2 stops46h 10m

£965

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Missouri to Belfast Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long does it take to fly to Belfast Intl Airport?

If you’re flying from a popular airport in Missouri, such as St. Louis or Kansas City, and flying into Belfast Intl Airport, then you can expect flight times to average 14h and 18h 17m, respectively.

Cheap Missouri to Belfast Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Belfast Intl Airport

Fastest flight time

14h 00m

Direct flights

None
The fastest flight from Missouri to Belfast Intl Airport takes 14h 00m
There are no direct flights from Missouri to Belfast Intl Airport. There are no popular flight routes from Missouri to Belfast Intl Airport.
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  • When did momondo last update prices for flights from Missouri to Belfast Intl Airport?

    Prices for flights from Missouri to Belfast Intl Airport were last updated today.

  • How old do you have to be to fly from Missouri to Belfast Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Belfast Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The travel and health documents you'll need for your trip to Belfast Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Belfast?

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

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Belfast?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Missouri to Belfast. momondo saves you time and could save you money on your trip.

Can I find flights from Missouri to Belfast with flexible booking policies on momondo?

momondo does allow users to show only those flights to Belfast from Missouri which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Missouri to Belfast?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Missouri.

I’m not ready to book a flight from Missouri to Belfast right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Missouri to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

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