$337 Find Cheap Flights from Missouri to Northern Ireland

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Cheapest flight$337
Flight from St. Louis to Belfast Intl Airport

FAQs for booking flights from Missouri to Northern Ireland

  • How does KAYAK find such low prices on flights from Missouri 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 Missouri to Northern Ireland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Missouri 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 Missouri 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 Missouri 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 Missouri 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 Missouri 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 day to fly to Northern Ireland?

    Based on KAYAK data, the cheapest day to fly to Northern Ireland is Tuesday where round-trip tickets can be as cheap as $674. On the other hand, the most expensive day to fly is Wednesday, where round-trip prices are $870 on average.

  • 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.

  • How long is the flight to Northern Ireland?

    An average nonstop flight from Missouri to Northern Ireland takes 22h 59m, covering a distance of 3933 miles. The shortest route is Kansas City (MCI) to Belfast City Airport (BHD) with an average flight time of 15h 13m.

  • What is the most popular destination in Northern Ireland?

    Based on KAYAK flight searches, the most popular destination is Belfast (100% of total searches to Northern Ireland).

Top airlines flying from Missouri to Northern Ireland

 
Need help choosing which airline to fly with from Missouri 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 10000 reviews
6.5Food
7.5Boarding
6.9Entertainment
7.2Comfort
8.0Crew
Airline reviews

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.

10.0 ExcellentBrian, Jun 2025SAN - LHR
Read more American Airlines reviews

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.

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

British Airways staff are very polite and willing to help.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

There were several issues with this flight. I have flown quite often internationally and I was surprised by the lack of presence of attendants other than meal and drink times. The food was not best but I feel that is the norm. We also had to get off the plane once in London via stairs and bus to the terminal. Anyone who had another flight had to then get another bus to another terminal. This causes me to miss my flight and have to rebook.

More room. International flight - by the time you put your purse and shoes under the seat in front of you, add in the pillow and blanket they give you- makes for tight fit.

The payment system was not working so was unable to connect wifi the entire flight

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

Paid $180 for seat selection, and selection essnt honored. Have to call for a refund.

My flights were great and the crew on them was lovely especially the London to Barcelona flight as Al & AJ were so amazingly nice. I wish they would be my crew always as they have the best customer service. Sadly both flights were delayed the first one from Vegas was because they clearly loaded the cargo wrong the plane was off balance making us 2 hours late. This made me miss my connection and sadly it was challenging rebooking while I was on the flight. I will never use Kayak again as there was no customer service number or live chat and you rebooked me on a flight 2 days later. I had my mom call BA to change it which she did after spending an hour on hold. This should not be so difficult. My second flight was an hour delayed due to not being able to disconnect the bridge from the plane but I did finally make it home.

The delay was not communicated via text and the person who helped with check in also didn’t inform me about the delay. I ended up missing my connection and it was a waste of 5 hours. The crew didn’t mention there would be someone at the gate informing of if I would be rebooked and there was no signage. Overall a very poor experience. The British Airways app was also very buggy, and didn’t work. I will avoid flying with British Airways when possible.

A little better than outward journey but mild chaos at the boarding gate because some people with boarding cards from connecting flights had cards which weren't recognised

The BA business class cabin is excellent,very comfortable for sleeping but the service could be improved.

Surly rude flight attendants. I ordered the chicken and was given a vegetarian meal with no explanation and no opportunity to change it. I tried to order another beverage and was told by the young humorless flight attendant to “wait”. And she never came back. The seats were very uncomfortable and cramped. The last time I flew British Airways was many years ago but I remember it was amazing and the crew were very charming. This was a terrible disappointment given the cost of the flight.

Book cheap flights from Missouri to Northern Ireland

Recent round-trip flight deals

8/18Mon
2 stopsAmerican Airlines
14h 19mMCI-BHD
8/27Wed
2 stopsAmerican Airlines
19h 58mBHD-MCI
$713
8/18Mon
2 stopsAmerican Airlines
15h 24mMCI-BHD
8/27Wed
2 stopsAmerican Airlines
18h 54mBHD-MCI
$714
8/4Mon
2 stopsAmerican Airlines
18h 16mMCI-BHD
8/15Fri
2 stopsAmerican Airlines
17h 05mBHD-MCI
$769
8/4Mon
2 stopsAmerican Airlines
18h 15mMCI-BHD
8/15Fri
2 stopsAmerican Airlines
18h 36mBHD-MCI
$770
7/16Wed
2 stopsAmerican Airlines
15h 13mMCI-BHD
7/25Fri
2 stopsAmerican Airlines
18h 29mBHD-MCI
$825
7/16Wed
2 stopsAmerican Airlines
16h 42mMCI-BHD
7/25Fri
2 stopsAmerican Airlines
17h 17mBHD-MCI
$826
7/14Mon
2 stopsBritish Airways
23h 32mSTL-BHD
7/21Mon
2 stopsBritish Airways
31h 59mBHD-STL
$827
7/14Mon
2 stopsBritish Airways
24h 55mSTL-BHD
7/21Mon
2 stopsBritish Airways
30h 08mBHD-STL
$830
9/26Fri
2 stopsBritish Airways
18h 33mMCI-BHD
10/11Sat
2 stopsBritish Airways
17h 15mBHD-MCI
$833
7/27Sun
3 stops
27h 33mSTL-BFS
8/3Sun
2 stops
26h 50mBFS-STL
$1,187

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Recent one-way flight deals

7/27Sun
2 stops
55h 50mSTL-BFS
$337
7/27Sun
2 stops
55h 50mSTL-BFS
$338
7/27Sun
3 stops
38h 53mSTL-BFS
$373
8/24Sun
3 stops
39h 26mSTL-BFS
$417
8/19Tue
3 stops
44h 21mSTL-BFS
$434
8/25Mon
3 stops
39h 21mSTL-BFS
$448
8/20Wed
3 stops
20h 00mSTL-BFS
$477
8/19Tue
2 stops
20h 05mSTL-BFS
$481
8/25Mon
2 stops
20h 05mSTL-BFS
$482
8/24Sun
2 stops
24h 00mSTL-BFS
$659

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Everything you need to know for your flight to Northern Ireland

Cabin class types available on flights to Missouri

Cabin classes available on flights to Missouri. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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