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Cheap flights from St. Louis to Belfast from $1,654

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Belfast departing on 1/4. 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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Find the cheapest flights from St. Louis to Belfast

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Belfast that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Belfast.

Cheap last minute flights

Planning a quick getaway from St. Louis to Belfast? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Belfast, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Belfast

Find recent round-trip train or bus tickets from St. Louis to Belfast.

All round-trip flight deals to Belfast

The cheapest plane tickets to Belfast found on KAYAK recently.
3:50 pm - 6:25 pmSTL-BFS
20h 35m2 stops
10:35 am - 2:43 pmBFS-STL
34h 08m3 stops
$1,654
Find Deal
Sat, Jan 4 - Sat, Jan 11
5:00 am - 7:55 pmSTL-BFS
32h 55m3 stops
10:35 am - 2:43 pmBFS-STL
34h 08m3 stops
$1,842
Find Deal
Sat, Jan 4 - Sat, Jan 11
3:50 pm - 6:25 pmSTL-BFS
20h 35m2 stops
8:40 am - 1:55 pmBFS-STL
35h 15m2 stops
$2,708
Find Deal
Sat, Jan 4 - Sat, Jan 11
STL-BF1
3891 mimulti-stop
Multiple Airlines
Find Deal

See travel insights to Belfast from

How to get the cheapest flight ticket from St. Louis 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 day to depart on your flight to Belfast?

The cheapest day to depart from St. Louis to Belfast is on a Thursday when prices can be found for as low as $0. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Belfast for around $1,146.

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

Our data shows that the cheapest St. Louis to Belfast flights are usually those with departure times in the evening. Our users have found flights to Belfast in the evening for as low as $0. 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 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

$1,654

Fastest flight time

20h 35m

Direct flights

None

Airports in Belfast

1 airport
The best flight deal from St. Louis to Belfast found on momondo in the last 72 hours is $1,654
The fastest flight from St. Louis to Belfast takes 20h 35m
There are no direct flights from St. Louis to Belfast. Popular non-direct route for this connection is Lambert-St Louis Airport - Belfast Intl Airport.
There is 1 airport near Belfast: Belfast Intl (BFS)

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

    The straight-line distance from Lambert-St Louis to Belfast is 3891.1 mi. Flights usually cover this in 20h 35m, depending on flying conditions and air traffic around both airports.

  • 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 many operators does momondo search for flights from Lambert-St Louis Airport to Belfast?

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


Best airlines flying from St. Louis to Belfast

Compare and see reviews for airlines that fly from St. Louis to Belfast with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $658Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $672Free CancellationRating
6.6
6,831 reviews
Search British Airways flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from St. Louis.

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

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

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

Once all potential St. Louis to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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