When did momondo last update prices for flights from Lambert-St Louis Airport to Northern Ireland?

Prices for flights from Lambert-St Louis Airport to Northern Ireland were last updated today.

How old do you have to be to fly from Lambert-St Louis Airport to Northern Ireland?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Northern Ireland.

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

The required travel and health documents for your Northern Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$964 Cheap Flights from St. Louis to Northern Ireland in 2026

Find the cheapest flights from St. Louis to Northern Ireland

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:35 pm - 3:40 pm

STL

BHD

12h 05m

1 stop

11:35 am - 7:30 pm

BHD

STL

13h 55m

1 stop

$964British Airways

Wed, Aug 19 - Wed, Sep 2

9:40 pm - 2:35 pm

STL

BHD

10h 55m

1 stop

6:30 am - 7:27 pm

BHD

STL

18h 57m

2 stops

$989British Airways

Sun, Aug 23 - Fri, Sep 4

4:54 pm - 2:35 pm

STL

BHD

15h 41m

2 stops

9:35 am - 7:27 pm

BHD

STL

15h 52m

2 stops

$991British Airways

Sun, Aug 23 - Fri, Sep 4

11:13 am - 9:20 am

STL

BHD

16h 07m

2 stops

5:30 pm - 3:54 pm

BHD

STL

28h 24m

2 stops

$998Delta

Wed, Aug 19 - Tue, Sep 8

9:35 pm - 3:30 pm

STL

BHD

11h 55m

1 stop

11:35 am - 7:30 pm

BHD

STL

13h 55m

1 stop

$1,014British Airways

Fri, Aug 21 - Wed, Sep 2

9:35 pm - 6:10 pm

STL

BHD

14h 35m

1 stop

9:35 am - 7:27 pm

BHD

STL

15h 52m

2 stops

$1,039British Airways

Fri, Aug 21 - Fri, Sep 4

1:04 pm - 9:20 am

STL

BHD

14h 16m

2 stops

9:50 am - 11:58 pm

BHD

STL

20h 08m

2 stops

$1,048Delta

Sat, Aug 22 - Thu, Sep 3

5:58 pm - 5:35 pm

STL

BHD

17h 37m

2 stops

9:40 am - 11:58 pm

BHD

STL

20h 18m

2 stops

$1,059American Airlines

Tue, Jul 21 - Tue, Jul 28

12:10 pm - 6:25 pm

STL

BFS

24h 15m

2 stops

8:55 pm - 2:00 pm

BFS

STL

23h 05m

2 stops

$1,200Multiple Airlines

Sun, Sep 6 - Mon, Sep 7

12:10 pm - 2:35 pm

STL

BFS

20h 25m

3 stops

7:35 pm - 2:00 pm

BFS

STL

24h 25m

2 stops

$1,209Multiple Airlines

Sun, Sep 6 - Mon, Sep 7

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British Airways flights from St. Louis to Northern Ireland

Our best British Airways deals on St. Louis to Northern Ireland flight tickets

British Airways

Aug 19

STL9:35 pmLambert-St Louis

12h 05m

1 stop

BHD3:40 pmBelfast City

Sep 2

BHD11:35 amBelfast City

13h 55m

1 stop

STL7:30 pmLambert-St Louis

$964

British Airways

Aug 23

STL9:40 pmLambert-St Louis

10h 55m

1 stop

BHD2:35 pmBelfast City

Sep 4

BHD6:30 amBelfast City

18h 57m

2 stops

STL7:27 pmLambert-St Louis

$989

British Airways

Aug 23

STL4:54 pmLambert-St Louis

15h 41m

2 stops

BHD2:35 pmBelfast City

Sep 4

BHD9:35 amBelfast City

15h 52m

2 stops

STL7:27 pmLambert-St Louis

$991

Delta flights from St. Louis to Northern Ireland

Our best Delta deals on St. Louis to Northern Ireland flight tickets

Delta

Aug 19

STL11:13 amLambert-St Louis

16h 07m

2 stops

BHD9:20 amBelfast City

Sep 8

BHD5:30 pmBelfast City

28h 24m

2 stops

STL3:54 pmLambert-St Louis

$998

Delta

Aug 22

STL1:04 pmLambert-St Louis

14h 16m

2 stops

BHD9:20 amBelfast City

Sep 3

BHD9:50 amBelfast City

20h 08m

2 stops

STL11:58 pmLambert-St Louis

$1,048

Delta

Jul 20

STL7:08 amLambert-St Louis

20h 12m

2 stops

BHD9:20 amBelfast City

Jul 28

BHD9:50 amBelfast City

30h 38m

2 stops

STL10:28 amLambert-St Louis

$1,085

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Wed 8/19

9:35 pm-3:40 pm

1 stop12h 05m

Belfast City

Wed 9/2

11:35 am-7:30 pm

1 stop13h 55m

$964

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 8/23

9:40 pm-2:35 pm

1 stop10h 55m

Belfast City

Fri 9/4

6:30 am-7:27 pm

2 stops18h 57m

$989

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 8/23

4:54 pm-2:35 pm

2 stops15h 41m

Belfast City

Fri 9/4

9:35 am-7:27 pm

2 stops15h 52m

$991

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Wed 8/19

11:13 am-9:20 am

2 stops16h 07m

Belfast City

Tue 9/8

5:30 pm-3:54 pm

2 stops28h 24m

$998

Quickest round-trip

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Fri 8/21

9:35 pm-3:30 pm

1 stop11h 55m

Belfast City

Wed 9/2

11:35 am-7:30 pm

1 stop13h 55m

$1,014

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Fri 8/21

9:35 pm-6:10 pm

1 stop14h 35m

Belfast City

Fri 9/4

9:35 am-7:27 pm

2 stops15h 52m

$1,039

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sat 8/22

1:04 pm-9:20 am

2 stops14h 16m

Belfast City

Thu 9/3

9:50 am-11:58 pm

2 stops20h 08m

$1,048

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Tue 7/21

5:58 pm-5:35 pm

2 stops17h 37m

Belfast City

Tue 7/28

9:40 am-11:58 pm

2 stops20h 18m

$1,059

St. LouisBelfast

STL - BFS

STLBFS

Lambert-St Louis

Sun 9/6

12:10 pm-6:25 pm

2 stops24h 15m

Belfast Intl

Mon 9/7

8:55 pm-2:00 pm

2 stops23h 05m

$1,200

St. LouisBelfast

STL - BFS

STLBFS

Lambert-St Louis

Sun 9/6

12:10 pm-2:35 pm

3 stops20h 25m

Belfast Intl

Mon 9/7

7:35 pm-2:00 pm

2 stops24h 25m

$1,209

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from St. Louis 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

Can stopping save me money on St. Louis to Northern Ireland flights?

You could potentially save up to 24% on your flight if you consider stops on a St. Louis to Northern Ireland flight.

Cheap St. Louis to Northern Ireland flight deals and tips

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

Fastest flight time	10h 55m
Direct flights	None

The fastest flight from St. Louis to Northern Ireland takes 10h 55m

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

Search flight deals

Frequently asked questions about flying from St. Louis to Northern Ireland

When did momondo last update prices for flights from Lambert-St Louis Airport to Northern Ireland?
Prices for flights from Lambert-St Louis Airport to Northern Ireland were last updated today.
How old do you have to be to fly from Lambert-St Louis Airport to Northern Ireland?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The required travel and health documents for your Northern Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Northern Ireland?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Northern Ireland. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Northern Ireland with flexible booking policies on momondo?

Yes. All flights to Northern Ireland from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Northern Ireland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Northern Ireland.

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

If you are simply researching potential flights to Northern Ireland, momondo offers a useful price alert feature which will track prices for flights to Northern Ireland from St. Louis and alert you when they change.