Cheap flights from Missouri to Northern Ireland from $623

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 1/12. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:44 pm - 4:05 pmSTL-BHD
15h 21m2 stops
British Airways Logo
6:35 am - 6:16 pmBHD-STL
17h 41m2 stops
$623British Airways
Find Deal
Mon, Jan 12 - Tue, Jan 20
British Airways Logo
6:44 pm - 6:35 pmSTL-BHD
17h 51m2 stops
British Airways Logo
6:35 am - 6:16 pmBHD-STL
17h 41m2 stops
$624British Airways
Find Deal
Mon, Jan 12 - Tue, Jan 20
British Airways Logo
6:44 pm - 2:15 pmSTL-BHD
13h 31m2 stops
British Airways Logo
6:35 am - 6:16 pmBHD-STL
17h 41m2 stops
$626British Airways
Find Deal
Mon, Jan 12 - Tue, Jan 20
Delta Logo
6:35 am - 4:50 pmSTL-BHD
28h 15m2 stops
Delta Logo
6:30 am - 5:43 pmBHD-STL
17h 13m2 stops
$745Delta
Find Deal
Sun, Mar 1 - Thu, Mar 5
Delta Logo
6:35 am - 4:50 pmSTL-BHD
28h 15m2 stops
Delta Logo
6:30 am - 5:43 pmBHD-STL
17h 13m2 stops
$746Delta
Find Deal
Sun, Mar 1 - Thu, Mar 5
Virgin Atlantic Logo
6:42 pm - 3:55 pmMCI-BHD
40h 13m2 stops
Virgin Atlantic Logo
5:25 pm - 7:25 pmBHD-MCI
32h 00m2 stops
$830Virgin Atlantic
Find Deal
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
7:15 am - 10:30 amMCI-BHD
22h 15m2 stops
American Airlines Logo
9:35 am - 11:22 pmBHD-MCI
19h 47m2 stops
$973American Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31

Delta flights from Missouri to Northern Ireland

Our best Delta deals on Missouri to Northern Ireland flight tickets
Delta
Mar 1
STL6:35 amLambert-St Louis
28h 15m
2 stops
BHD4:50 pmBelfast City
Mar 5
BHD6:30 amBelfast City
17h 13m
2 stops
STL5:43 pmLambert-St Louis
Delta
Mar 1
STL6:35 amLambert-St Louis
28h 15m
2 stops
BHD4:50 pmBelfast City
Mar 5
BHD6:30 amBelfast City
17h 13m
2 stops
STL5:43 pmLambert-St Louis

British Airways flights from Missouri to Northern Ireland

Our best British Airways deals on Missouri to Northern Ireland flight tickets
British Airways
Jan 12
STL6:44 pmLambert-St Louis
15h 21m
2 stops
BHD4:05 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
BHD6:35 amBelfast City
17h 41m
2 stops
STL6:16 pmLambert-St Louis
British Airways
Jan 12
STL6:44 pmLambert-St Louis
13h 31m
2 stops
BHD2:15 pmBelfast City
Jan 20
BHD6:35 amBelfast City
17h 41m
2 stops
STL6:16 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 November 13, 2025.
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

Mon 1/12

6:44 pm-4:05 pm

2 stops15h 21m

Belfast City

Tue 1/20

6:35 am-6:16 pm

2 stops17h 41m

$623

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

$624

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 1/12

6:44 pm-2:15 pm

2 stops13h 31m

Belfast City

Tue 1/20

6:35 am-6:16 pm

2 stops17h 41m

$626

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 3/1

6:35 am-4:50 pm

2 stops28h 15m

Belfast City

Thu 3/5

6:30 am-5:43 pm

2 stops17h 13m

$745

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 3/1

6:35 am-4:50 pm

2 stops28h 15m

Belfast City

Thu 3/5

6:30 am-5:43 pm

2 stops17h 13m

$746

Kansas CityBelfast

MCI - BHD

MCIBHD

Kansas City

Fri 3/27

6:42 pm-3:55 pm

2 stops40h 13m

Belfast City

Tue 3/31

5:25 pm-7:25 pm

2 stops32h 00m

$830

Kansas CityBelfast

MCI - BHD

MCIBHD

Kansas City

Fri 3/27

7:15 am-10:30 am

2 stops22h 15m

Belfast City

Tue 3/31

9:35 am-11:22 pm

2 stops19h 47m

$973

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

What is the cheapest day to depart on your flight to Northern Ireland?

The cheapest day to depart on your flight to Northern Ireland is on a Tuesday when prices can be found for as low as $674. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Missouri to Northern Ireland for around $870.

What is the cheapest time of day to depart on your flight to Northern Ireland?

In the afternoon is the cheapest time of day to fly from Missouri to Northern Ireland when you can find flight prices for as low as $785. Flying to Northern Ireland in the afternoon is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $1,429.

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

Direct flights

None
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 many operators does momondo search for flights from Missouri to Northern Ireland?

  • 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.

Best airlines flying from Missouri to Northern Ireland

Compare and see reviews for airlines that fly from Missouri to Northern Ireland with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $674Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights

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 12/13
Sat 12/20

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Popular cities in Northern Ireland

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