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Cheap flights from Missouri to Belfast from £234

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 1/12. 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
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Find the cheapest flights from Missouri to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
21:40 - 17:40
STL
-
BHD
14h 00m
1 stop
British Airways Logo
16:15 - 00:16
BHD
-
STL
38h 01m
2 stops
£1,014British Airways
Sun, 19 Jul - Sat, 25 Jul
British Airways Logo
17:58 - 17:40
STL
-
BHD
17h 42m
2 stops
British Airways Logo
19:05 - 19:20
BHD
-
STL
30h 15m
2 stops
£1,018British Airways
Sun, 19 Jul - Sat, 25 Jul
British Airways Logo
15:55 - 18:15
STL
-
BHD
20h 20m
2 stops
British Airways Logo
19:05 - 19:20
BHD
-
STL
30h 15m
2 stops
£1,225British Airways
Sat, 18 Jul - Sat, 25 Jul
KLM Logo
18:09 - 16:55
STL
-
BHD
16h 46m
2 stops
KLM Logo
09:50 - 20:37
BHD
-
STL
16h 47m
2 stops
£1,260KLM
Mon, 20 Jul - Sat, 25 Jul
KLM Logo
17:36 - 16:55
STL
-
BHD
17h 19m
2 stops
KLM Logo
17:30 - 15:13
BHD
-
STL
27h 43m
2 stops
£1,261KLM
Mon, 20 Jul - Sat, 25 Jul
Delta Logo
13:22 - 09:20
STL
-
BHD
13h 58m
2 stops
Delta Logo
09:50 - 20:37
BHD
-
STL
16h 47m
2 stops
£1,299Delta
Thu, 23 Jul - Sat, 25 Jul
Aer Lingus Logo
17:58 - 20:05
STL
-
BHD
20h 07m
3 stops
Aer Lingus Logo
17:55 - 23:32
BHD
-
STL
35h 37m
3 stops
£1,300Aer Lingus
Mon, 20 Jul - Sat, 25 Jul
British Airways Logo
21:35 - 15:20
STL
-
BHD
11h 45m
1 stop
British Airways Logo
07:05 - 00:15
BHD
-
STL
23h 10m
2 stops
£1,328British Airways
Tue, 21 Jul - Sat, 25 Jul
Multiple Airlines Logo
17:58 - 20:55
STL
-
BHD
20h 57m
3 stops
Multiple Airlines Logo
09:35 - 19:29
BHD
-
STL
15h 54m
2 stops
£1,447Multiple Airlines
Mon, 20 Jul - Sat, 25 Jul
Multiple Airlines Logo
17:58 - 20:55
STL
-
BHD
20h 57m
3 stops
Multiple Airlines Logo
11:05 - 09:10
BHD
-
STL
28h 05m
3 stops
£1,826Multiple Airlines
Mon, 20 Jul - Sat, 25 Jul

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British Airways flights from Missouri to Belfast

Our best British Airways deals on Missouri to Belfast flight tickets
British Airways
19 Jul
STL21:40Lambert-St Louis
14h 00m
1 stop
BHD17:40Belfast City
25 Jul
BHD16:15Belfast City
38h 01m
2 stops
STL00:16Lambert-St Louis
£1,014
British Airways
19 Jul
STL17:58Lambert-St Louis
17h 42m
2 stops
BHD17:40Belfast City
25 Jul
BHD19:05Belfast City
30h 15m
2 stops
STL19:20Lambert-St Louis
£1,018
British Airways
18 Jul
STL15:55Lambert-St Louis
20h 20m
2 stops
BHD18:15Belfast City
25 Jul
BHD19:05Belfast City
30h 15m
2 stops
STL19:20Lambert-St Louis
£1,225

KLM flights from Missouri to Belfast

Our best KLM deals on Missouri to Belfast flight tickets
KLM
20 Jul
STL18:09Lambert-St Louis
16h 46m
2 stops
BHD16:55Belfast City
25 Jul
BHD09:50Belfast City
16h 47m
2 stops
STL20:37Lambert-St Louis
£1,260
KLM
20 Jul
STL17:36Lambert-St Louis
17h 19m
2 stops
BHD16:55Belfast City
25 Jul
BHD17:30Belfast City
27h 43m
2 stops
STL15:13Lambert-St Louis
£1,261
KLM
30 Jun
STL17:36Lambert-St Louis
17h 19m
2 stops
BHD16:55Belfast City
2 Jul
BHD17:30Belfast City
29h 53m
2 stops
STL17:23Lambert-St Louis
£1,340

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 28 June 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

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 19/7

21:40-17:40

1 stop14h 00m

Belfast City

Sat 25/7

16:15-00:16

2 stops38h 01m

£1,014

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 19/7

17:58-17:40

2 stops17h 42m

Belfast City

Sat 25/7

19:05-19:20

2 stops30h 15m

£1,018

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sat 18/7

15:55-18:15

2 stops20h 20m

Belfast City

Sat 25/7

19:05-19:20

2 stops30h 15m

£1,225

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 20/7

18:09-16:55

2 stops16h 46m

Belfast City

Sat 25/7

09:50-20:37

2 stops16h 47m

£1,260

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 20/7

17:36-16:55

2 stops17h 19m

Belfast City

Sat 25/7

17:30-15:13

2 stops27h 43m

£1,261
Fastest return journey

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Thu 23/7

13:22-09:20

2 stops13h 58m

Belfast City

Sat 25/7

09:50-20:37

2 stops16h 47m

£1,299

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 20/7

17:58-20:05

3 stops20h 07m

Belfast City

Sat 25/7

17:55-23:32

3 stops35h 37m

£1,300

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Tue 21/7

21:35-15:20

1 stop11h 45m

Belfast City

Sat 25/7

07:05-00:15

2 stops23h 10m

£1,328

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 20/7

17:58-20:55

3 stops20h 57m

Belfast City

Sat 25/7

09:35-19:29

2 stops15h 54m

£1,447

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 20/7

17:58-20:55

3 stops20h 57m

Belfast City

Sat 25/7

11:05-09:10

3 stops28h 05m

£1,826

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, Delta, and KLM are the most popular carriers 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

16h 46m

Direct flights

None
The fastest flight from Missouri to Belfast takes 16h 46m
There are no direct flights from Missouri to Belfast. There are no popular flight routes from Missouri to Belfast.
Search flight deals

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