What is the cheapest airline that flies from Missouri to Northern Ireland?

American Airlines, British Airways, and KLM are the most popular carriers operating from Missouri to Northern Ireland

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 Kansas City to Belfast Intl Airport takes 16h 43m on average. On the other hand, flying from St. Louis to Belfast Intl Airport takes 18h 20m 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.

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?

As of September 2025, there is 1 operator available to choose from 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.

$424 Cheap Flights from Missouri to Northern Ireland in 2025/26

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Round-trip

One-way

Cheap round-trip flights

1:26 pm - 11:10 pmSTL-BFS

27h 44m2 stops

6:45 am - 10:04 pmBFS-STL

21h 19m2 stops

$583Multiple Airlines

Find Deal

Mon, Sep 29 - Tue, Oct 7

7:59 pm - 5:30 pmSTL-BHD

15h 31m2 stops

9:35 am - 9:29 pmBHD-STL

17h 54m2 stops

$706American Airlines

Find Deal

Mon, Sep 29 - Tue, Oct 7

6:37 pm - 6:40 pmMCI-BHD

18h 03m2 stops

6:30 am - 5:44 pmBHD-MCI

17h 14m2 stops

$735American Airlines

Find Deal

Sun, Feb 15 - Sun, Feb 22

6:14 pm - 4:50 pmMCI-BHD

16h 36m2 stops

11:30 am - 10:14 pmBHD-MCI

16h 44m2 stops

$747British Airways

Find Deal

Sun, Feb 15 - Mon, Feb 23

4:15 pm - 4:50 pmMCI-BHD

18h 35m2 stops

5:20 pm - 4:29 pmBHD-MCI

29h 09m2 stops

$771Delta

Find Deal

Mon, Feb 16 - Mon, Feb 23

6:14 pm - 6:40 pmMCI-BHD

18h 26m2 stops

11:35 am - 10:14 pmBHD-MCI

16h 39m2 stops

$777British Airways

Find Deal

Sun, Feb 15 - Sat, Feb 21

12:32 pm - 10:40 amMCI-BHD

16h 08m2 stops

12:10 pm - 10:14 pmBHD-MCI

16h 04m2 stops

$787British Airways

Find Deal

Mon, Feb 16 - Sun, Feb 22

10:45 am - 9:00 pmSTL-BHD

28h 15m2 stops

6:30 am - 4:50 pmBHD-STL

16h 20m2 stops

$801Delta

Find Deal

Sun, Mar 1 - Thu, Mar 5

10:45 am - 9:00 pmSTL-BHD

28h 15m2 stops

6:30 am - 4:55 pmBHD-STL

16h 25m2 stops

$802Delta

Find Deal

Sun, Mar 1 - Thu, Mar 5

2:30 pm - 4:55 pmMCI-BHD

20h 25m2 stops

6:30 am - 4:53 pmBHD-MCI

16h 23m2 stops

$812Delta

Find Deal

Fri, Oct 3 - Tue, Oct 7

American Airlines flights from Missouri to Northern Ireland

Our best American Airlines deals on Missouri to Northern Ireland flight tickets

American Airlines

Sep 29

STL7:59 pmLambert-St Louis

15h 31m

2 stops

BHD5:30 pmBelfast City

Oct 7

BHD9:35 amBelfast City

17h 54m

2 stops

STL9:29 pmLambert-St Louis

$706

Find similar

American Airlines

Feb 15

MCI6:37 pmKansas City

18h 03m

2 stops

BHD6:40 pmBelfast City

Feb 22

BHD6:30 amBelfast City

17h 14m

2 stops

MCI5:44 pmKansas City

$735

Find similar

American Airlines

Nov 1

STL4:25 pmLambert-St Louis

19h 20m

2 stops

BHD4:45 pmBelfast City

Nov 8

BHD11:35 amBelfast City

16h 54m

2 stops

STL10:29 pmLambert-St Louis

$1,347

Find similar

Delta flights from Missouri to Northern Ireland

Our best Delta deals on Missouri to Northern Ireland flight tickets

Delta

Feb 16

MCI4:15 pmKansas City

18h 35m

2 stops

BHD4:50 pmBelfast City

Feb 23

BHD5:20 pmBelfast City

29h 09m

2 stops

MCI4:29 pmKansas City

$771

Find similar

Delta

Mar 1

STL10:45 amLambert-St Louis

28h 15m

2 stops

BHD9:00 pmBelfast City

Mar 5

BHD6:30 amBelfast City

16h 20m

2 stops

STL4:50 pmLambert-St Louis

$801

Find similar

Delta

Mar 1

STL10:45 amLambert-St Louis

28h 15m

2 stops

BHD9:00 pmBelfast City

Mar 5

BHD6:30 amBelfast City

16h 25m

2 stops

STL4:55 pmLambert-St Louis

$802

Find similar

momondo Fare Finder

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 - BFS

STLBFS

Lambert-St Louis

Mon 9/29

1:26 pm-11:10 pm

2 stops27h 44m

Belfast Intl

Tue 10/7

6:45 am-10:04 pm

2 stops21h 19m

$583

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 9/29

7:59 pm-5:30 pm

2 stops15h 31m

Belfast City

Tue 10/7

9:35 am-9:29 pm

2 stops17h 54m

$706

Kansas CityBelfast

MCI - BHD

MCIBHD

Kansas City

Sun 2/15

6:37 pm-6:40 pm

2 stops18h 03m

Belfast City

Sun 2/22

6:30 am-5:44 pm

2 stops17h 14m

$735

Kansas CityBelfast

MCI - BHD

MCIBHD

Kansas City

Sun 2/15

6:14 pm-4:50 pm

2 stops16h 36m

Belfast City

Mon 2/23

11:30 am-10:14 pm

2 stops16h 44m

$747

Kansas CityBelfast

MCI - BHD

MCIBHD

Kansas City

Mon 2/16

4:15 pm-4:50 pm

2 stops18h 35m

Belfast City

Mon 2/23

5:20 pm-4:29 pm

2 stops29h 09m

$771

Kansas CityBelfast

MCI - BHD

MCIBHD

Kansas City

Sun 2/15

6:14 pm-6:40 pm

2 stops18h 26m

Belfast City

Sat 2/21

11:35 am-10:14 pm

2 stops16h 39m

$777

Kansas CityBelfast

MCI - BHD

MCIBHD

Kansas City

Mon 2/16

12:32 pm-10:40 am

2 stops16h 08m

Belfast City

Sun 2/22

12:10 pm-10:14 pm

2 stops16h 04m

$787

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 3/1

10:45 am-9:00 pm

2 stops28h 15m

Belfast City

Thu 3/5

6:30 am-4:50 pm

2 stops16h 20m

$801

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 3/1

10:45 am-9:00 pm

2 stops28h 15m

Belfast City

Thu 3/5

6:30 am-4:55 pm

2 stops16h 25m

$802

Kansas CityBelfast

MCI - BHD

MCIBHD

Kansas City

Fri 10/3

2:30 pm-4:55 pm

2 stops20h 25m

Belfast City

Tue 10/7

6:30 am-4:53 pm

2 stops16h 23m

$812

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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.

Search flight deals

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?
As of September 2025, there is 1 operator available to choose from 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 Airlines	PriceFrom $674	Free Cancellation	Rating 7.2 10,000 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.

An easier way to manage your Northern Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Northern Ireland

Popular cities in Northern Ireland

Flights to Londonfrom $318

Flights to Manchesterfrom $391

Flights to Edinburghfrom $396

Flights to Glasgowfrom $374

Flights to Birminghamfrom $389

Flights to Newcastle upon Tynefrom $430

Flights to Belfastfrom $514

Flights to Bristolfrom $425

Flights to Invernessfrom $407

Flights to Liverpoolfrom $441

Flights to Aberdeenfrom $487

Flights to Leedsfrom $453

Cheap flights from Missouri to Northern Ireland from $424

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 Northern Ireland departing on 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Missouri to Northern Ireland

Cheap round-trip flights

Cheap one-way flights

American Airlines flights from Missouri to Northern Ireland

Our best American Airlines deals on Missouri to Northern Ireland flight tickets

Delta flights from Missouri to Northern Ireland

Our best Delta deals on Missouri to Northern Ireland flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Missouri to Northern Ireland that are best for you.

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?

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

What is the cheapest airline that flies from Missouri to Northern Ireland?

American Airlines, British Airways, and KLM are the most popular carriers operating from Missouri to Northern Ireland

How long is the flight from Missouri to Northern Ireland?

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

When did momondo last update prices for flights from Missouri to Northern Ireland?

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?

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

Best airlines flying from Missouri to Northern Ireland

Compare and see reviews for airlines that fly from Missouri to Northern Ireland with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Northern Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Northern Ireland

Popular cities in Northern Ireland

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