Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Missouri to Belfast from $446

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 Belfast departing on 9/9. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Missouri to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
9:50 am - 10:20 amSTL  Lambert-St Louis-BHD Belfast City
18h 30m2 stops Boston Logan Intl London Heathrow
British Airways Logo
11:25 am - 11:59 pmBHD  Belfast City-STL Lambert-St Louis
18h 34m2 stops London Heathrow Chicago O'Hare Intl
$1,143British Airways
Sun, Nov 15 - Tue, Nov 17
British Airways Logo
7:29 am - 10:50 amSTL  Lambert-St Louis-BHD Belfast City
21h 21m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
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
British Airways Logo
6:00 am - 11:10 amMCI  Kansas City-BHD Belfast City
23h 10m2 stops Philadelphia London Heathrow
British Airways Logo
6:15 pm - 9:49 pmBHD  Belfast City-MCI Kansas City
33h 34m2 stops London Heathrow Philadelphia
$1,698British Airways
Sat, Dec 19 - Sat, Jan 2
Multiple Airlines Logo
8:55 am - 11:05 pmSTL  Lambert-St Louis-BFS Belfast Intl
32h 10m3 stops Toronto Pearson Intl Frankfurt am Main Birmingham
Multiple Airlines Logo
3:20 pm - 1:25 pmBFS  Belfast Intl-STL Lambert-St Louis
28h 05m2 stops Birmingham Frankfurt am Main
$2,165Multiple Airlines
Sat, Sep 26 - Sat, Oct 3
Multiple Airlines Logo
12:10 pm - 12:25 pmSTL  Lambert-St Louis-BFS Belfast Intl
18h 15m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
3:20 pm - 1:25 pmBFS  Belfast Intl-STL Lambert-St Louis
28h 05m2 stops Birmingham Frankfurt am Main
$2,338Multiple Airlines
Sat, Sep 26 - Sat, Oct 3
Multiple Airlines Logo
8:55 am - 7:05 pmSTL  Lambert-St Louis-BFS Belfast Intl
28h 10m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle
Multiple Airlines Logo
10:10 pm - 2:00 pmBFS  Belfast Intl-STL Lambert-St Louis
45h 50m3 stops Manchester Munich Franz Josef Strauss Toronto Pearson Intl
$3,115Multiple Airlines
Mon, Sep 28 - Sun, Oct 11

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

British Airways flights from Missouri to Belfast

Our best British Airways deals on Missouri to Belfast flight tickets
British Airways
Nov 15
STL9:50 amLambert-St Louis
18h 30m
2 stops
BHD10:20 amBelfast City
Nov 17
BHD11:25 amBelfast City
18h 34m
2 stops
STL11:59 pmLambert-St Louis
$1,143
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
Dec 19
MCI6:00 amKansas City
23h 10m
2 stops
BHD11:10 amBelfast City
Jan 2
BHD6:15 pmBelfast City
33h 34m
2 stops
MCI9:49 pmKansas City
$1,698

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Belfast 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 August 15, 2026.
Use the filters below to find and compare flights from Missouri to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisBelfast

STL Lambert-St Louis - BHD Belfast City

STLBHD

Lambert-St Louis

Sun 11/15

9:50 am-10:20 am

2 stops18h 30m

Belfast City

Tue 11/17

11:25 am-11:59 pm

2 stops18h 34m

$1,143

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

Kansas CityBelfast

MCI Kansas City - BHD Belfast City

MCIBHD

Kansas City

Sat 12/19

6:00 am-11:10 am

2 stops23h 10m

Belfast City

Sat 1/2

6:15 pm-9:49 pm

2 stops33h 34m

$1,698

St. LouisBelfast

STL Lambert-St Louis - BFS Belfast Intl

STLBFS

Lambert-St Louis

Sat 9/26

8:55 am-11:05 pm

3 stops32h 10m

Belfast Intl

Sat 10/3

3:20 pm-1:25 pm

2 stops28h 05m

$2,165

St. LouisBelfast

STL Lambert-St Louis - BFS Belfast Intl

STLBFS

Lambert-St Louis

Sat 9/26

12:10 pm-12:25 pm

2 stops18h 15m

Belfast Intl

Sat 10/3

3:20 pm-1:25 pm

2 stops28h 05m

$2,338

St. LouisBelfast

STL Lambert-St Louis - BFS Belfast Intl

STLBFS

Lambert-St Louis

Mon 9/28

8:55 am-7:05 pm

3 stops28h 10m

Belfast Intl

Sun 10/11

10:10 pm-2:00 pm

3 stops45h 50m

$3,115
Cheapest one-way

Kansas CityBelfast

MCI Kansas City - BHD Belfast City

MCIBHD

Kansas City

Wed 9/9

11:31 am-7:50 pm

2 stops26h 19m

$446

Kansas CityBelfast

MCI Kansas City - BHD Belfast City

MCIBHD

Kansas City

Wed 9/9

9:49 am-3:40 pm

2 stops23h 51m

$566

Kansas CityBelfast

MCI Kansas City - BHD Belfast City

MCIBHD

Kansas City

Wed 9/9

8:15 am-8:35 pm

2 stops30h 20m

$577

Kansas CityBelfast

MCI Kansas City - BHD Belfast City

MCIBHD

Kansas City

Wed 9/9

8:15 am-4:35 pm

3 stops26h 20m

$593

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

See travel insights to Belfast from

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

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

British Airways is the most popular carrier operating from Missouri to Belfast

Cheap Missouri to Belfast flight deals and tips

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

Fastest flight time

18h 44m

Direct flights

None
The fastest flight from Missouri to Belfast takes 18h 44m
There are no direct flights from Missouri to Belfast. There are no popular flight routes from Missouri to Belfast.
Search flight deals

Frequently asked questions about flying 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 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.

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.

An easier way to manage your Belfast 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 9/14
Mon 9/21
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport