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Cheap flights from St. Louis to Belfast from £619

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Belfast departing on 17/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from St. Louis to Belfast

Cheap return flights

These are some of the best return flight deals from St. Louis to Belfast that have been recently found on momondo from popular airlines, departing in the coming months.
18:29 - 16:15STL-BHD
16h 46m2 stops
08:40 - 20:41BHD-STL
17h 01m2 stops
£619British Airways
Find Deal
Mon, 17 Mar - Fri, 21 Mar
17:37 - 14:15STL-BHD
39h 38m2 stops
19:25 - 22:18BHD-STL
31h 53m2 stops
£829British Airways
Find Deal
Fri, 14 Mar - Wed, 19 Mar
15:45 - 22:50STL-BFS
25h 05m3 stops
08:10 - 13:43BFS-STL
35h 33m3 stops
Wed, 5 Mar - Sat, 8 Mar
19:46 - 17:30STL-BHD
15h 44m2 stops
19:30 - 15:58BHD-STL
26h 28m2 stops
£966British Airways
Find Deal
Mon, 14 Jul - Mon, 21 Jul
19:46 - 17:30STL-BHD
15h 44m2 stops
19:30 - 15:58BHD-STL
26h 28m2 stops
£967British Airways
Find Deal
Mon, 14 Jul - Mon, 21 Jul
15:45 - 19:20STL-BFS
21h 35m2 stops
08:10 - 13:43BFS-STL
35h 33m3 stops
Wed, 5 Mar - Sat, 8 Mar
09:15 - 12:40STL-BHD
21h 25m2 stops
07:00 - 22:45BHD-STL
21h 45m3 stops
£1,237
Find Deal
Tue, 15 Jul - Mon, 21 Jul
06:00 - 14:30STL-BHD
26h 30m3 stops
17:55 - 19:46BHD-STL
31h 51m3 stops
£1,453Aer Lingus
Find Deal
Sat, 31 May - Thu, 5 Jun
05:55 - 12:50STL-BHD
25h 55m3 stops
07:10 - 22:07BHD-STL
19h 57m3 stops
£1,466Aer Lingus
Find Deal
Mon, 17 Mar - Fri, 21 Mar
09:49 - 12:50STL-BHD
21h 01m3 stops
09:50 - 23:15BHD-STL
19h 25m3 stops
£1,601Aer Lingus
Find Deal
Tue, 15 Jul - Mon, 21 Jul

Aer Lingus flights from St. Louis to Belfast

Our best Aer Lingus deals on St. Louis to Belfast flight tickets
Aer Lingus
31 May
STL06:00Lambert-St Louis
26h 30m
3 stops
BHD14:30Belfast City
5 Jun
BHD17:55Belfast City
31h 51m
3 stops
STL19:46Lambert-St Louis
Aer Lingus
17 Mar
STL05:55Lambert-St Louis
25h 55m
3 stops
BHD12:50Belfast City
21 Mar
BHD07:10Belfast City
19h 57m
3 stops
STL22:07Lambert-St Louis
Aer Lingus
15 Jul
STL09:49Lambert-St Louis
21h 01m
3 stops
BHD12:50Belfast City
21 Jul
BHD09:50Belfast City
19h 25m
3 stops
STL23:15Lambert-St Louis

British Airways flights from St. Louis to Belfast

Our best British Airways deals on St. Louis to Belfast flight tickets
British Airways
17 Mar
STL18:29Lambert-St Louis
16h 46m
2 stops
BHD16:15Belfast City
21 Mar
BHD08:40Belfast City
17h 01m
2 stops
STL20:41Lambert-St Louis
British Airways
14 Mar
STL17:37Lambert-St Louis
39h 38m
2 stops
BHD14:15Belfast City
19 Mar
BHD19:25Belfast City
31h 53m
2 stops
STL22:18Lambert-St Louis
British Airways
14 Jul
STL19:46Lambert-St Louis
15h 44m
2 stops
BHD17:30Belfast City
21 Jul
BHD19:30Belfast City
26h 28m
2 stops
STL15:58Lambert-St Louis

Cheap St. Louis to Belfast flight deals and tips

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

Best price found

£619

Fastest flight time

13h 20m

Direct flights

None

Airports in Belfast

2 airports
The best flight deal from St. Louis to Belfast found on momondo in the last 72 hours is £619
The fastest flight from St. Louis to Belfast takes 13h 20m
There are no direct flights from St. Louis to Belfast. Popular non-direct routes for this connection are Lambert-St Louis Airport - Belfast City Airport and Lambert-St Louis Airport - Belfast Intl Airport.
There are 2 airports near Belfast: Belfast Intl (BFS), Belfast City (BHD)

  • How far is Lambert-St Louis to Belfast by plane?

    Belfast is 3891.1 mi away from Lambert-St Louis. By plane, this route typically takes 13h 20m.

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

    Prices for flights from Lambert-St Louis Airport to Belfast are refreshed on a daily basis.

  • How old do you have to be to fly from Lambert-St Louis Airport to Belfast?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Belfast.

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

    The travel and health documents required for your trip to Belfast 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 Belfast. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


  • How do I get Price Alerts for flights from St. Louis to Belfast?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to St. Louis from Belfast. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from St. Louis to Belfast with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.


Why use momondo?

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

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

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

Flights from St. Louis to Belfast 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 St. Louis 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 St. Louis to Belfast.

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

Yes momondo offers price alerts on flights to Belfast from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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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