Find flights
Deals
When to book
FAQs & Tips

$950 Find cheap flights from St. Louis 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 from St. Louis to Belfast departing on 8/7. 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
Sat 6/15
Sat 6/22

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Belfast, 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 Belfast, as well as popular online travel agencies
In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

Save 21% 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.

Cheap flight deals from St. Louis to Belfast (STL-BHD)

 
These are the cheapest deals for flights from St. Louis to Belfast currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from St. Louis to Belfast

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Belfast.

Recent one-way flight deals from St. Louis to Belfast

Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Belfast found on KAYAK recently.

Recent last minute flight deals from St. Louis to Belfast

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from St. Louis to Belfast.

Recent direct flight deals from St. Louis to Belfast

The latest deals for direct flights from St. Louis to Belfast so you can sit back and relax without the need for a layover.

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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:51 am - 4:50 pmSTL-BHD
22h 59m2 stops
5:20 pm - 5:27 pmBHD-STL
30h 07m2 stops
$950Delta
Find Deal
Wed, Aug 7 - Tue, Aug 13
6:09 pm - 5:25 pmSTL-BHD
17h 16m2 stops
7:40 pm - 2:26 pmBHD-STL
24h 46m2 stops
$998British Airways
Find Deal
Mon, Jul 15 - Sun, Jul 21
6:09 pm - 5:25 pmSTL-BHD
17h 16m2 stops
3:15 pm - 5:19 pmBHD-STL
56h 04m3 stops
$1,175British Airways
Find Deal
Mon, Jul 15 - Sun, Jul 21
6:04 am - 9:15 amSTL-BHD
21h 11m3 stops
3:15 pm - 5:19 pmBHD-STL
56h 04m3 stops
$1,200British Airways
Find Deal
Mon, Jul 15 - Sun, Jul 21
5:30 pm - 2:50 pmSTL-BHD
39h 20m2 stops
3:35 pm - 1:30 pmBHD-STL
27h 55m1 stop
$1,394Lufthansa
Find Deal
Wed, Aug 7 - Tue, Aug 13
12:00 pm - 3:25 pmSTL-BHD
21h 25m2 stops
6:55 am - 10:46 amBHD-STL
33h 51m3 stops
$1,512
Find Deal
Wed, Aug 7 - Tue, Aug 13
6:30 am - 9:15 amSTL-BHD
20h 45m3 stops
6:55 am - 10:46 amBHD-STL
33h 51m3 stops
$1,605
Find Deal
Wed, Aug 7 - Tue, Aug 13

Good to know

Cheapest flight

$950
Flight from St. Louis to Belfast City Airport

When to book flights from St. Louis to Belfast

Are your dates flexible? Find out the best times to travel from St. Louis to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Belfast

  • What is the cheapest flight from St. Louis to Belfast?

    In the last 3 days, the lowest price for a flight from St. Louis to Belfast was $950 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Belfast?

    A passport is required to fly from St. Louis to Belfast.

  • Which airports will I be using when flying from St. Louis to Belfast?

    St. Louis is served by only 1 airport and there are 2 airports in Belfast. You will leave St. Louis from Lambert-St Louis and you will be arriving in Belfast at one of these airports: Belfast Intl or Belfast City.

  • Which aircraft models fly most regularly from St. Louis to Belfast?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Belfast?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Belfast, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from St. Louis 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 St. Louis to Belfast.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from St. Louis 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 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 St. Louis with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis 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 St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

St. Louis - Belfast Flights

Departure:

St. Louis (undefined)United States

Cabin classes:

Browse origins:

Browse destinations: