How long does it take to fly to Belfast?

Flight times vary depending on what airport in Missouri you fly out of and what airport in Belfast you fly into. For example, flying from St. Louis to Belfast Intl Airport takes 11h 30m on average. On the other hand, flying from Kansas City to Belfast Intl Airport takes 14h 40m 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.

What is the cheapest airline that flies from Missouri to Belfast?

Finnair is the most popular carrier operating from Missouri to Belfast

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

Prices for flights from Missouri to Belfast were last updated today.

How many operators does momondo search for flights from Missouri to Belfast?

As of November 2025, there is 1 operator available to choose from for flights from Missouri to Belfast.

How old do you have to be to fly from Missouri to Belfast?

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 Belfast.

What documentation or ID do you need to fly to Belfast?

The travel and health documents you'll need for your trip to Belfast may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$625 Cheap Flights from Missouri to Belfast in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Missouri to Belfast

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:43 pm - 2:15 pmSTL-BHD

16h 32m2 stops

9:10 am - 7:05 pmBHD-STL

15h 55m2 stops

$625American Airlines

Find Deal

Mon, Dec 1 - Sun, Dec 7

3:37 pm - 2:15 pmSTL-BHD

16h 38m2 stops

6:35 am - 9:15 pmBHD-STL

20h 40m2 stops

$635American Airlines

Find Deal

Mon, Jan 12 - Tue, Jan 20

11:21 am - 4:50 pmSTL-BHD

23h 29m2 stops

5:20 pm - 8:41 pmBHD-STL

33h 21m2 stops

$746Virgin Atlantic

Find Deal

Sun, Mar 1 - Thu, Mar 5

12:10 pm - 4:50 pmSTL-BHD

22h 40m2 stops

6:30 am - 6:04 pmBHD-STL

17h 34m2 stops

$747Virgin Atlantic

Find Deal

Sun, Mar 1 - Thu, Mar 5

10:00 pm - 3:30 pmSTL-BHD

11h 30m1 stop

1:40 pm - 7:30 pmBHD-STL

11h 50m1 stop

$749British Airways

Find Deal

Fri, May 1 - Tue, May 12

10:00 pm - 8:45 pmSTL-BHD

16h 45m1 stop

1:40 pm - 7:30 pmBHD-STL

11h 50m1 stop

$759British Airways

Find Deal

Fri, May 1 - Tue, May 12

4:39 pm - 3:30 pmSTL-BHD

16h 51m2 stops

9:35 am - 7:30 pmBHD-STL

15h 55m1 stop

$769American Airlines

Find Deal

Fri, May 1 - Tue, May 12

10:00 pm - 3:30 pmSTL-BHD

11h 30m1 stop

9:35 am - 8:03 pmBHD-STL

16h 28m2 stops

$777British Airways

Find Deal

Fri, May 1 - Tue, May 12

12:15 pm - 1:40 pmSTL-BFS

20h 25m2 stops

6:25 pm - 11:50 pmBFS-STL

34h 25m2 stops

$1,156Multiple Airlines

Find Deal

Thu, Mar 12 - Thu, Mar 26

3:30 pm - 8:25 pmSTL-BHD

22h 55m3 stops

2:35 pm - 1:30 pmBHD-STL

28h 55m2 stops

$1,615Multiple Airlines

Find Deal

Fri, May 1 - Tue, May 12

American Airlines flights from Missouri to Belfast

Our best American Airlines deals on Missouri to Belfast flight tickets

American Airlines

Dec 1

STL3:43 pmLambert-St Louis

16h 32m

2 stops

BHD2:15 pmBelfast City

Dec 7

BHD9:10 amBelfast City

15h 55m

2 stops

STL7:05 pmLambert-St Louis

$625

Find similar

American Airlines

Jan 12

STL3:37 pmLambert-St Louis

16h 38m

2 stops

BHD2:15 pmBelfast City

Jan 20

BHD6:35 amBelfast City

20h 40m

2 stops

STL9:15 pmLambert-St Louis

$635

Find similar

American Airlines

May 1

STL4:39 pmLambert-St Louis

16h 51m

2 stops

BHD3:30 pmBelfast City

May 12

BHD9:35 amBelfast City

15h 55m

1 stop

STL7:30 pmLambert-St Louis

$769

Find similar

Virgin Atlantic flights from Missouri to Belfast

Our best Virgin Atlantic deals on Missouri to Belfast flight tickets

Virgin Atlantic

Mar 1

STL11:21 amLambert-St Louis

23h 29m

2 stops

BHD4:50 pmBelfast City

Mar 5

BHD5:20 pmBelfast City

33h 21m

2 stops

STL8:41 pmLambert-St Louis

$746

Find similar

Virgin Atlantic

Mar 1

STL12:10 pmLambert-St Louis

22h 40m

2 stops

BHD4:50 pmBelfast City

Mar 5

BHD6:30 amBelfast City

17h 34m

2 stops

STL6:04 pmLambert-St Louis

$747

Find similar

Virgin Atlantic

Mar 27

MCI10:10 amKansas City

29h 50m

2 stops

BHD9:00 pmBelfast City

Mar 31

BHD6:30 amBelfast City

20h 38m

2 stops

MCI9:08 pmKansas City

$876

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 12/1

3:43 pm-2:15 pm

2 stops16h 32m

Belfast City

Sun 12/7

9:10 am-7:05 pm

2 stops15h 55m

$625

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Mon 1/12

3:37 pm-2:15 pm

2 stops16h 38m

Belfast City

Tue 1/20

6:35 am-9:15 pm

2 stops20h 40m

$635

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 3/1

11:21 am-4:50 pm

2 stops23h 29m

Belfast City

Thu 3/5

5:20 pm-8:41 pm

2 stops33h 21m

$746

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 3/1

12:10 pm-4:50 pm

2 stops22h 40m

Belfast City

Thu 3/5

6:30 am-6:04 pm

2 stops17h 34m

$747

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Fri 5/1

10:00 pm-3:30 pm

1 stop11h 30m

Belfast City

Tue 5/12

1:40 pm-7:30 pm

1 stop11h 50m

$749

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Fri 5/1

10:00 pm-8:45 pm

1 stop16h 45m

Belfast City

Tue 5/12

1:40 pm-7:30 pm

1 stop11h 50m

$759

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Fri 5/1

4:39 pm-3:30 pm

2 stops16h 51m

Belfast City

Tue 5/12

9:35 am-7:30 pm

1 stop15h 55m

$769

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Fri 5/1

10:00 pm-3:30 pm

1 stop11h 30m

Belfast City

Tue 5/12

9:35 am-8:03 pm

2 stops16h 28m

$777

St. LouisBelfast

STL - BFS

STLBFS

Lambert-St Louis

Thu 3/12

12:15 pm-1:40 pm

2 stops20h 25m

Belfast Intl

Thu 3/26

6:25 pm-11:50 pm

2 stops34h 25m

$1,156

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Fri 5/1

3:30 pm-8:25 pm

3 stops22h 55m

Belfast City

Tue 5/12

2:35 pm-1:30 pm

2 stops28h 55m

$1,615

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first

How to get the cheapest flight ticket from Missouri to Belfast

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 Belfast?

The cheapest day to depart from Missouri to Belfast is on a Tuesday when prices can be found for as low as $674. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Missouri to Belfast for around $870.

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

Our data shows that the cheapest Missouri to Belfast flights are usually those with departure times in the afternoon. Our users have found flights to Belfast in the afternoon for as low as $785. Try not to purchase tickets at noon because they tend to be around $1,429. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Missouri to Belfast flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Missouri to Belfast?
Prices for flights from Missouri to Belfast were last updated today.
How many operators does momondo search for flights from Missouri to Belfast?
As of November 2025, there is 1 operator available to choose from for flights from Missouri to Belfast.
How old do you have to be to fly from Missouri to Belfast?
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 Belfast.
What documentation or ID do you need to fly to Belfast?
The travel and health documents you'll need for your trip to Belfast may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missouri to Belfast

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $674	Free Cancellation	Rating 7.2 11,037 reviews		Search American Airlines flights

Why use momondo?

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

Finding the right flight to Belfast from Missouri is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belfast quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Missouri to Belfast flights to just show those with flexible booking policies.

How can momondo help me find flights from Missouri to Belfast?

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 Missouri to Belfast.

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

Yes. momondo can track prices for Missouri to Belfast flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.