$650 Find Cheap Flights from St. Louis to Northern Ireland

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Northern Ireland departing on 12/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Northern Ireland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Northern Ireland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Northern Ireland, as well as popular online travel agencies
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Book Cheap St. Louis to Northern Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Northern Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Northern Ireland

Mon, Dec 1 - Sun, Dec 7
Multiple Airlines Logo
2:36 pm - 4:50 pmSTL-BHD
20h 14m2 stops
Multiple Airlines Logo
6:30 am - 5:56 pmBHD-STL
17h 26m2 stops
$650Multiple Airlines
Find Deal
Sun, Mar 1 - Thu, Mar 5
Virgin Atlantic Logo
12:10 pm - 4:50 pmSTL-BHD
22h 40m2 stops
Virgin Atlantic Logo
6:30 am - 4:50 pmBHD-STL
16h 20m2 stops
$748Virgin Atlantic
Find Deal
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
2:36 pm - 2:15 pmSTL-BHD
18h 39m2 stops
American Airlines Logo
6:35 am - 11:32 pmBHD-STL
22h 57m2 stops
$976American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Northern Ireland flights

Get data-powered insights and trends into flights from St. Louis to Northern Ireland to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between St. Louis and Northern Ireland?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from St. Louis to Northern Ireland.

There is just one airline that flies from St. Louis to Northern Ireland direct and that is American Airlines. The best round-trip deal found from American Airlines for the route is to Belfast Intl Airport (BFS) and costs $674.

Which airlines provide the cheapest flights from St. Louis to Northern Ireland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Northern Ireland were found on Virgin Atlantic ($748) and American Airlines ($976).

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Good to know

Cheapest flight$650
Flight from St. Louis to Belfast City Airport

FAQs - booking Northern Ireland flights

  • How does KAYAK find such low prices on flights from St. Louis to Northern Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Northern Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Northern Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Northern Ireland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Northern Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Northern Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Northern Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Northern Ireland?

    The cheapest time of day to fly to Northern Ireland is generally in the evening, when round-trip flights cost $785 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Northern Ireland is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,429.

Reviews of the top airline flying from St. Louis to Northern Ireland

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Northern Ireland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Northern Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 11030 reviews
7.5Boarding
7.2Comfort
8.0Crew
6.4Food
6.9Entertainment
Airline reviews

Disliked having to wait a little longer to disembark from the plan when we landed in London

10.0 ExcellentLESTER, Oct 2025JFK - LHR
Read more American Airlines reviews

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

The flight was canceled 3 hours after original take off time

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

Everything you need to know for your flight from St. Louis to Northern Ireland

Information on your arrival and departure airports

St. Louis (STL)

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