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Cheap flights from St. Louis to Belfast from $1,445

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 5/15. 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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Thu 5/2

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Easily compare round-trip flights from St. Louis to Belfast

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Belfast by changing tabs
American Airlines
May 15
STL2:00 pmLambert-St Louis
17h 25m
2 stops
BHD1:25 pmBelfast City
Jul 31
BHD6:50 amBelfast City
20h 05m
2 stops
STL8:55 pmLambert-St Louis
Multiple Airlines
May 15
STL3:25 pmLambert-St Louis
17h 25m
1 stop
BHD2:50 pmBelfast City
Jul 31
BHD7:40 pmBelfast City
25h 41m
2 stops
STL3:21 pmLambert-St Louis
Aer Lingus
May 15
STL11:40 amLambert-St Louis
18h 30m
3 stops
BHD12:10 pmBelfast City
Jul 31
BHD6:35 amBelfast City
21h 24m
3 stops
STL9:59 pmLambert-St Louis
Multiple Airlines
May 15
STL10:10 amLambert-St Louis
17h 05m
2 stops
BHD9:15 amBelfast City
Jul 31
BHD6:35 amBelfast City
21h 24m
3 stops
STL9:59 pmLambert-St Louis

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 $699Free CancellationRating
7.3
14,955 reviews
Search American Airlines flights

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 St. Louis for Belfast?

Sunday. The cheapest day of the week is typically Sunday. The most expensive is typically Wednesday

When is the cheapest time to fly from St. Louis to Belfast?

In the afternoon. St. Louis to Belfast flights are approximately 25% more expensive at noon than in the afternoon

What is the cheapest airline that flies to Belfast from St. Louis?

American Airlines. American Airlines is the most popular carrier operating from St. Louis to Belfast

What is the cheapest St. Louis to Belfast flight route?

Lambert-St Louis - Belfast City. Fly from Lambert-St Louis to Belfast City for the best St. Louis - Belfast flight prices

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

$1,445

Fastest flight time

17h 05m

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 $1,445
The fastest flight from St. Louis to Belfast takes 17h 05m
There are no direct flights from St. Louis to Belfast. Popular non-direct route for this connection is Lambert-St Louis Airport - Belfast City Airport.
There is 1 airport near Belfast: Belfast City (BHD)

  • 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 17h 05m, 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.


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 stay in the United Kingdom

Fly into one of these airports located in Belfast
Airports listed have a maximum distance of 12.2 mi from Belfast