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

British Airways and Aer Lingus 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 St. Louis to Belfast Intl Airport takes 15h 41m on average. On the other hand, flying from Kansas City to Belfast Intl Airport takes 18h 32m 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 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.

$566 Cheap Flights from Missouri to Northern Ireland in 2026

Find the cheapest flights from Missouri to Northern Ireland

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:18 pm - 3:30 pmSTL Lambert-St Louis-BHD Belfast City

16h 12m2 stops Chicago O'Hare Intl London Heathrow

6:30 am - 7:18 pmBHD Belfast City-STL Lambert-St Louis

18h 48m2 stops London Heathrow Charlotte Douglas

$1,031American Airlines

Mon, Sep 28 - Sun, Oct 11

7:29 am - 10:50 amSTL Lambert-St Louis-BHD Belfast City

21h 21m2 stops Chicago O'Hare Intl London Heathrow

6:45 am - 4:43 pmBHD Belfast City-STL Lambert-St Louis

15h 58m2 stops London Heathrow Chicago O'Hare Intl

$1,152British Airways

Mon, Jan 18 - Fri, Jan 22

7:29 am - 10:50 amSTL Lambert-St Louis-BHD Belfast City

21h 21m2 stops Chicago O'Hare Intl London Heathrow

6:45 am - 4:43 pmBHD Belfast City-STL Lambert-St Louis

15h 58m2 stops London Heathrow Chicago O'Hare Intl

$1,153British Airways

Mon, Jan 18 - Fri, Jan 22

5:18 pm - 8:35 pmSTL Lambert-St Louis-BHD Belfast City

21h 17m2 stops Chicago O'Hare Intl London Heathrow

11:00 am - 10:42 pmBHD Belfast City-STL Lambert-St Louis

17h 42m2 stops London Heathrow Charlotte Douglas

$1,354British Airways

Fri, Sep 11 - Fri, Sep 25

3:54 pm - 1:35 pmSTL Lambert-St Louis-BFS Belfast Intl

15h 41m2 stops Atlanta Hartsfield-Jackson Manchester

8:30 am - 11:54 pmBFS Belfast Intl-STL Lambert-St Louis

21h 24m2 stops Manchester Atlanta Hartsfield-Jackson

$1,399Multiple Airlines

Sat, Oct 3 - Sat, Oct 10

9:35 pm - 8:35 pmSTL Lambert-St Louis-BHD Belfast City

17h 00m1 stop London Heathrow

11:00 am - 12:27 amBHD Belfast City-STL Lambert-St Louis

19h 27m2 stops London Heathrow Chicago O'Hare Intl

$1,408British Airways

Fri, Sep 11 - Fri, Sep 25

9:35 pm - 8:35 pmSTL Lambert-St Louis-BHD Belfast City

17h 00m1 stop London Heathrow

11:00 am - 7:30 pmBHD Belfast City-STL Lambert-St Louis

14h 30m1 stop London Heathrow

$1,505British Airways

Fri, Sep 11 - Fri, Sep 25

8:55 am - 9:15 pmSTL Lambert-St Louis-BFS Belfast Intl

30h 20m3 stops Toronto Pearson Intl Brussels Bruxelles-National Manchester

6:05 am - 2:00 pmBFS Belfast Intl-STL Lambert-St Louis

37h 55m3 stops London Gatwick Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$1,580Multiple Airlines

Fri, Sep 11 - Fri, Sep 25

8:55 am - 9:15 pmSTL Lambert-St Louis-BFS Belfast Intl

30h 20m3 stops Toronto Pearson Intl Brussels Bruxelles-National Manchester

9:05 pm - 2:00 pmBFS Belfast Intl-STL Lambert-St Louis

22h 55m2 stops Glasgow Intl Toronto Pearson Intl

$1,623Multiple Airlines

Fri, Sep 11 - Fri, Sep 25

8:55 am - 4:40 pmSTL Lambert-St Louis-BHD Belfast City

25h 45m3 stops Toronto Pearson Intl Brussels Bruxelles-National Manchester

7:00 am - 2:00 pmBHD Belfast City-STL Lambert-St Louis

37h 00m3 stops London Gatwick Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

$1,666Multiple Airlines

Fri, Sep 11 - Fri, Sep 25

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British Airways flights from Missouri to Northern Ireland

Our best British Airways deals on Missouri to Northern Ireland flight tickets

British Airways

Jan 18

STL7:29 amLambert-St Louis

21h 21m

2 stops

BHD10:50 amBelfast City

Jan 22

BHD6:45 amBelfast City

15h 58m

2 stops

STL4:43 pmLambert-St Louis

$1,152

British Airways

Jan 18

STL7:29 amLambert-St Louis

21h 21m

2 stops

BHD10:50 amBelfast City

Jan 22

BHD6:45 amBelfast City

15h 58m

2 stops

STL4:43 pmLambert-St Louis

$1,153

British Airways

Sep 11

STL5:18 pmLambert-St Louis

21h 17m

2 stops

BHD8:35 pmBelfast City

Sep 25

BHD11:00 amBelfast City

17h 42m

2 stops

STL10:42 pmLambert-St Louis

$1,354

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

Cheapest round-trip

St. LouisBelfast

STL Lambert-St Louis - BHD Belfast City

STLBHD

Lambert-St Louis

Mon 9/28

5:18 pm-3:30 pm

2 stops16h 12m

Belfast City

Sun 10/11

6:30 am-7:18 pm

2 stops18h 48m

$1,031

St. LouisBelfast

STL Lambert-St Louis - BHD Belfast City

STLBHD

Lambert-St Louis

Mon 1/18

7:29 am-10:50 am

2 stops21h 21m

Belfast City

Fri 1/22

6:45 am-4:43 pm

2 stops15h 58m

$1,152

St. LouisBelfast

STL Lambert-St Louis - BHD Belfast City

STLBHD

Lambert-St Louis

Mon 1/18

7:29 am-10:50 am

2 stops21h 21m

Belfast City

Fri 1/22

6:45 am-4:43 pm

2 stops15h 58m

$1,153

St. LouisBelfast

STL Lambert-St Louis - BHD Belfast City

STLBHD

Lambert-St Louis

Fri 9/11

5:18 pm-8:35 pm

2 stops21h 17m

Belfast City

Fri 9/25

11:00 am-10:42 pm

2 stops17h 42m

$1,354

St. LouisBelfast

STL Lambert-St Louis - BFS Belfast Intl

STLBFS

Lambert-St Louis

Sat 10/3

3:54 pm-1:35 pm

2 stops15h 41m

Belfast Intl

Sat 10/10

8:30 am-11:54 pm

2 stops21h 24m

$1,399

St. LouisBelfast

STL Lambert-St Louis - BHD Belfast City

STLBHD

Lambert-St Louis

Fri 9/11

9:35 pm-8:35 pm

1 stop17h 00m

Belfast City

Fri 9/25

11:00 am-12:27 am

2 stops19h 27m

$1,408

Quickest round-trip

St. LouisBelfast

STL Lambert-St Louis - BHD Belfast City

STLBHD

Lambert-St Louis

Fri 9/11

9:35 pm-8:35 pm

1 stop17h 00m

Belfast City

Fri 9/25

11:00 am-7:30 pm

1 stop14h 30m

$1,505

St. LouisBelfast

STL Lambert-St Louis - BFS Belfast Intl

STLBFS

Lambert-St Louis

Fri 9/11

8:55 am-9:15 pm

3 stops30h 20m

Belfast Intl

Fri 9/25

6:05 am-2:00 pm

3 stops37h 55m

$1,580

St. LouisBelfast

STL Lambert-St Louis - BFS Belfast Intl

STLBFS

Lambert-St Louis

Fri 9/11

8:55 am-9:15 pm

3 stops30h 20m

Belfast Intl

Fri 9/25

9:05 pm-2:00 pm

2 stops22h 55m

$1,623

St. LouisBelfast

STL Lambert-St Louis - BHD Belfast City

STLBHD

Lambert-St Louis

Fri 9/11

8:55 am-4:40 pm

3 stops25h 45m

Belfast City

Fri 9/25

7:00 am-2:00 pm

3 stops37h 00m

$1,666

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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

Can stopping save me money on Missouri to Northern Ireland flights?

You could potentially save up to 57% on your flight if you consider stops on a Missouri to Northern Ireland flight.

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

Best Price Found	$566
Fastest flight time	15h 41m
Direct flights	None

The best one-way flight to Northern Ireland from Missouri in the past 72 hours is $566. The best round-trip flight deal from Missouri to Northern Ireland found on momondo in the last 72 hours is $1,031.

The fastest flight from Missouri to Northern Ireland takes 15h 41m

There are no direct flights from Missouri to Northern Ireland. There are no popular flight routes from Missouri to Northern Ireland.

Search flight deals

Frequently asked questions about flying 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.