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Cheap flights from Missouri to Belfast from £330

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 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Missouri to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
09:50 - 10:20STL  Lambert-St Louis-BHD Belfast City
18h 30m2 stops Boston Logan Intl London Heathrow
British Airways Logo
11:25 - 23:59BHD  Belfast City-STL Lambert-St Louis
18h 34m2 stops London Heathrow Chicago O'Hare Intl
£845British Airways
Sun, 15 Nov - Tue, 17 Nov
British Airways Logo
07:29 - 10:50STL  Lambert-St Louis-BHD Belfast City
21h 21m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
06:45 - 16:43BHD  Belfast City-STL Lambert-St Louis
15h 58m2 stops London Heathrow Chicago O'Hare Intl
£852British Airways
Mon, 18 Jan - Fri, 22 Jan
Multiple Airlines Logo
08:55 - 22:50STL  Lambert-St Louis-BFS Belfast Intl
31h 55m3 stops Toronto Pearson Intl Frankfurt am Main Birmingham
Multiple Airlines Logo
22:45 - 14:00BFS  Belfast Intl-STL Lambert-St Louis
21h 15m2 stops Manchester Toronto Pearson Intl
£967Multiple Airlines
Thu, 24 Sep - Thu, 1 Oct
British Airways Logo
06:00 - 11:10MCI  Kansas City-BHD Belfast City
23h 10m2 stops Philadelphia London Heathrow
British Airways Logo
18:15 - 21:49BHD  Belfast City-MCI Kansas City
33h 34m2 stops London Heathrow Philadelphia
£1,256British Airways
Sat, 19 Dec - Sat, 2 Jan
Multiple Airlines Logo
08:55 - 23:05STL  Lambert-St Louis-BFS Belfast Intl
32h 10m3 stops Toronto Pearson Intl Frankfurt am Main Birmingham
Multiple Airlines Logo
15:20 - 13:25BFS  Belfast Intl-STL Lambert-St Louis
28h 05m2 stops Birmingham Frankfurt am Main
£1,601Multiple Airlines
Sat, 26 Sep - Sat, 3 Oct
Multiple Airlines Logo
12:10 - 12:25STL  Lambert-St Louis-BFS Belfast Intl
18h 15m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
15:20 - 13:25BFS  Belfast Intl-STL Lambert-St Louis
28h 05m2 stops Birmingham Frankfurt am Main
£1,729Multiple Airlines
Sat, 26 Sep - Sat, 3 Oct

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British Airways flights from Missouri to Belfast

Our best British Airways deals on Missouri to Belfast flight tickets
British Airways
15 Nov
STL09:50Lambert-St Louis
18h 30m
2 stops
BHD10:20Belfast City
17 Nov
BHD11:25Belfast City
18h 34m
2 stops
STL23:59Lambert-St Louis
£845
British Airways
18 Jan
STL07:29Lambert-St Louis
21h 21m
2 stops
BHD10:50Belfast City
22 Jan
BHD06:45Belfast City
15h 58m
2 stops
STL16:43Lambert-St Louis
£852
British Airways
19 Dec
MCI06:00Kansas City
23h 10m
2 stops
BHD11:10Belfast City
2 Jan
BHD18:15Belfast City
33h 34m
2 stops
MCI21:49Kansas City
£1,256

momondo Fare Finder

 
Customise your flight search to find flights from Missouri to Belfast 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 15 August 2026.
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

Cheapest return flight
Fastest return journey

St. LouisBelfast

STL Lambert-St Louis - BHD Belfast City

STLBHD

Lambert-St Louis

Sun 15/11

09:50-10:20

2 stops18h 30m

Belfast City

Tue 17/11

11:25-23:59

2 stops18h 34m

£845

St. LouisBelfast

STL Lambert-St Louis - BHD Belfast City

STLBHD

Lambert-St Louis

Mon 18/1

07:29-10:50

2 stops21h 21m

Belfast City

Fri 22/1

06:45-16:43

2 stops15h 58m

£852

St. LouisBelfast

STL Lambert-St Louis - BFS Belfast Intl

STLBFS

Lambert-St Louis

Thu 24/9

08:55-22:50

3 stops31h 55m

Belfast Intl

Thu 1/10

22:45-14:00

2 stops21h 15m

£967

Kansas CityBelfast

MCI Kansas City - BHD Belfast City

MCIBHD

Kansas City

Sat 19/12

06:00-11:10

2 stops23h 10m

Belfast City

Sat 2/1

18:15-21:49

2 stops33h 34m

£1,256

St. LouisBelfast

STL Lambert-St Louis - BFS Belfast Intl

STLBFS

Lambert-St Louis

Sat 26/9

08:55-23:05

3 stops32h 10m

Belfast Intl

Sat 3/10

15:20-13:25

2 stops28h 05m

£1,601

St. LouisBelfast

STL Lambert-St Louis - BFS Belfast Intl

STLBFS

Lambert-St Louis

Sat 26/9

12:10-12:25

2 stops18h 15m

Belfast Intl

Sat 3/10

15:20-13:25

2 stops28h 05m

£1,729
Cheapest one-way

Kansas CityBelfast

MCI Kansas City - BHD Belfast City

MCIBHD

Kansas City

Wed 9/9

11:31-19:50

2 stops26h 19m

£330

Kansas CityBelfast

MCI Kansas City - BHD Belfast City

MCIBHD

Kansas City

Wed 9/9

09:49-15:40

2 stops23h 51m

£419

Kansas CityBelfast

MCI Kansas City - BHD Belfast City

MCIBHD

Kansas City

Wed 9/9

08:15-16:35

3 stops26h 20m

£438

Kansas CityBelfast

MCI Kansas City - BHD Belfast City

MCIBHD

Kansas City

Wed 9/9

11:10-13:10

3 stops20h 00m

£501

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
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See travel insights to Belfast from

How to get the cheapest flight ticket from Missouri to Belfast

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

What is the cheapest airline that flies from Missouri to Belfast?

British Airways is the most popular carrier operating from Missouri to Belfast

Cheap Missouri to Belfast flight deals and tips

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

Fastest flight time

18h 44m

Direct flights

None
The fastest flight from Missouri to Belfast takes 18h 44m
There are no direct flights from Missouri to Belfast. There are no popular flight routes from Missouri to Belfast.
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Frequently asked questions about flying from Missouri to Belfast

  • When did momondo last update prices for flights from Missouri to Belfast?

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

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

    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.

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

    The travel and health documents you'll need for your trip to Belfast 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

It is quick and easy to find Missouri to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

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

All flight searches from Missouri to Belfast on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Belfast from Missouri. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Belfast, momondo offers a useful price alert feature which will track prices for flights to Belfast from Missouri and alert you when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport