Cheap flights from Missouri to Northern Ireland from $625

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Northern Ireland departing on 1/29. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
3:37 pm - 6:50 pm
STL
-
BHD
21h 13m2 stops
British Airways Logo
8:00 pm - 6:14 pm
BHD
-
STL
28h 14m2 stops
$625British Airways
Thu, Jan 29 - Thu, Feb 5
American Airlines Logo
11:55 am - 10:20 am
STL
-
BHD
16h 25m2 stops
American Airlines Logo
6:35 am - 6:14 pm
BHD
-
STL
17h 39m2 stops
$630American Airlines
Thu, Jan 29 - Mon, Feb 2
Delta Logo
6:55 pm - 4:50 pm
STL
-
BHD
15h 55m2 stops
Delta Logo
5:20 pm - 11:37 pm
BHD
-
STL
36h 17m2 stops
$808Delta
Mon, Jan 12 - Tue, Jan 20
British Airways Logo
6:44 pm - 6:35 pm
STL
-
BHD
17h 51m2 stops
British Airways Logo
6:35 am - 6:16 pm
BHD
-
STL
17h 41m2 stops
$809British Airways
Mon, Jan 12 - Tue, Jan 20
British Airways Logo
6:44 pm - 6:35 pm
STL
-
BHD
17h 51m2 stops
British Airways Logo
10:00 am - 10:44 pm
BHD
-
STL
18h 44m2 stops
$811British Airways
Mon, Jan 12 - Tue, Jan 20
British Airways Logo
2:00 pm - 10:15 am
STL
-
BHD
14h 15m2 stops
British Airways Logo
6:30 am - 9:12 pm
BHD
-
STL
20h 42m2 stops
$841British Airways
Wed, Feb 25 - Sun, Mar 1
Finnair Logo
2:02 pm - 2:15 pm
MCI
-
BHD
18h 13m2 stops
Finnair Logo
12:10 pm - 6:47 pm
BHD
-
MCI
36h 37m2 stops
$1,190Finnair
Wed, Feb 25 - Sun, Mar 1
Multiple Airlines Logo
7:04 am - 10:30 am
STL
-
BHD
45h 26m3 stops
Multiple Airlines Logo
3:05 pm - 11:59 pm
BHD
-
STL
38h 54m3 stops
$13,143Multiple Airlines
Thu, Jan 29 - Thu, Feb 5

British Airways flights from Missouri to Northern Ireland

Our best British Airways deals on Missouri to Northern Ireland flight tickets
British Airways
Jan 29
STL3:37 pmLambert-St Louis
21h 13m
2 stops
BHD6:50 pmBelfast City
Feb 5
BHD8:00 pmBelfast City
28h 14m
2 stops
STL6:14 pmLambert-St Louis
British Airways
Jan 12
STL6:44 pmLambert-St Louis
17h 51m
2 stops
BHD6:35 pmBelfast City
Jan 20
BHD6:35 amBelfast City
17h 41m
2 stops
STL6:16 pmLambert-St Louis
British Airways
Jan 12
STL6:44 pmLambert-St Louis
17h 51m
2 stops
BHD6:35 pmBelfast City
Jan 20
BHD10:00 amBelfast City
18h 44m
2 stops
STL10:44 pmLambert-St Louis

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Northern Ireland 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 832,500 searches. Data last updated January 1, 2026.
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

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Thu 1/29

3:37 pm-6:50 pm

2 stops21h 13m

Belfast City

Thu 2/5

8:00 pm-6:14 pm

2 stops28h 14m

$625

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Thu 1/29

11:55 am-10:20 am

2 stops16h 25m

Belfast City

Mon 2/2

6:35 am-6:14 pm

2 stops17h 39m

$630

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 1/12

6:55 pm-4:50 pm

2 stops15h 55m

Belfast City

Tue 1/20

5:20 pm-11:37 pm

2 stops36h 17m

$808

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 1/12

6:44 pm-6:35 pm

2 stops17h 51m

Belfast City

Tue 1/20

6:35 am-6:16 pm

2 stops17h 41m

$809

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 1/12

6:44 pm-6:35 pm

2 stops17h 51m

Belfast City

Tue 1/20

10:00 am-10:44 pm

2 stops18h 44m

$811

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Wed 2/25

2:00 pm-10:15 am

2 stops14h 15m

Belfast City

Sun 3/1

6:30 am-9:12 pm

2 stops20h 42m

$841

Kansas CityBelfast

MCI - BHD

MCIBHD

Kansas City

Wed 2/25

2:02 pm-2:15 pm

2 stops18h 13m

Belfast City

Sun 3/1

12:10 pm-6:47 pm

2 stops36h 37m

$1,190

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Thu 1/29

7:04 am-10:30 am

3 stops45h 26m

Belfast City

Thu 2/5

3:05 pm-11:59 pm

3 stops38h 54m

$13,143

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Northern Ireland from

How to get the cheapest flight ticket from Missouri to Northern Ireland

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 is the flight from Missouri to Northern Ireland?

Flight times vary depending on what airport in Missouri you fly out of and what airport in Northern Ireland you fly into. For example, flying from St. Louis to Belfast Intl Airport takes 14h 15m on average. On the other hand, flying from Kansas City to Belfast Intl Airport takes 18h 13m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Cheap Missouri to Northern Ireland flight deals and tips

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

Fastest flight time

14h 15m

Direct flights

None
The fastest flight from Missouri to Northern Ireland takes 14h 15m
There are no direct flights from Missouri to Northern Ireland. There are no popular flight routes from Missouri to Northern Ireland.
  • When did momondo last update prices for flights from Missouri to Northern Ireland?

    Prices for flights from Missouri to Northern Ireland are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missouri to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

    The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Missouri to Northern Ireland for you.

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

Flights from Missouri to Northern Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Missouri to Northern Ireland?

momondo helps you find the best flight between Missouri and Northern Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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

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1 adult
Sat 1/31
Sat 2/7

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Popular cities in Northern Ireland

Popular flights according to clicks in the last 7 days on momondo