$1,654 Find Cheap Flights from Missouri to Belfast

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Belfast departing on 1/4. 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
0 bags

Search hundreds of travel sites at once for deals on flights to Belfast

In the last 7 days travelers have searched 46,646,933 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

World’s Best Airfare Search Site for 2024

Good to know

Cheapest flight

$1,654
Flight from St. Louis to Belfast Intl Airport

FAQs for booking flights from Missouri to Belfast

  • How does KAYAK find such low prices on flights from Missouri to Belfast?

    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 Belfast.

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

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

    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 to Belfast with an airline and back to Missouri with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Belfast?

    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 to Belfast from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Missouri to Belfast?

Find which airlines fly direct from Missouri to Belfast, which days they fly and book direct flights.

Nonstop departures

Missouri to Belfast

Monday

Aer Lingus, Air France, American Airlines, +16 more

Aer Lingus, Air France, +17 more

Tuesday

Aer Lingus, Air France, American Airlines, +15 more

Aer Lingus, Air France, +16 more

Wednesday

Aer Lingus, Air France, American Airlines, +16 more

Aer Lingus, Air France, +17 more

Thursday

Aer Lingus, Air France, American Airlines, +16 more

Aer Lingus, Air France, +17 more

Friday

Aer Lingus, Air France, American Airlines, +16 more

Aer Lingus, Air France, +17 more

Saturday

Aer Lingus, Air France, American Airlines, +15 more

Aer Lingus, Air France, +16 more

Sunday

Aer Lingus, Air France, American Airlines, +16 more

Aer Lingus, Air France, +17 more

See more direct flights

Nonstop returns

Belfast to Missouri

Monday

Aer Lingus, Air France, American Airlines, +16 more

Aer Lingus, Air France, +17 more

Tuesday

Aer Lingus, Air France, American Airlines, +15 more

Aer Lingus, Air France, +16 more

Wednesday

Aer Lingus, Air France, American Airlines, +16 more

Aer Lingus, Air France, +17 more

Thursday

Aer Lingus, Air France, American Airlines, +16 more

Aer Lingus, Air France, +17 more

Friday

Aer Lingus, Air France, American Airlines, +16 more

Aer Lingus, Air France, +17 more

Saturday

Aer Lingus, Air France, American Airlines, +15 more

Aer Lingus, Air France, +16 more

Sunday

Aer Lingus, Air France, American Airlines, +16 more

Aer Lingus, Air France, +17 more

See more direct flights
See more direct flights

Book cheap flights from Missouri to Belfast

Recent round-trip flight deals

1/4Sat
2 stops
20h 35mSTL-BFS
1/11Sat
3 stops
34h 08mBFS-STL
$1,654
1/4Sat
3 stops
32h 55mSTL-BFS
1/11Sat
3 stops
34h 08mBFS-STL
$1,842
1/4Sat
2 stops
20h 35mSTL-BFS
1/11Sat
2 stops
35h 15mBFS-STL
$2,708

Search by stops

Search by price

One-way flight deals

multi-stopMultiple Airlines
5127 miLAX-BF1
multi-stopMultiple Airlines
3165 miJFK-BF1

Search by stops

Everything you need to know for your flight to Belfast

Cabin class types available on flights to Missouri

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

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.