£332 Find Cheap Flights from St. Louis to Belfast

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Belfast departing on 3/6. 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 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
Travellers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 29% or moreCompare multiple travel sites with one search.

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

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

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

Everything you should know

Cheapest return fare
£812
British Airways
Sun 19/7Wed 29/7
STL - BHD • 1 stop
Cheapest one-way flight
£332
Multiple Airlines
Wed 3/6
STL - BFS • 3 stops
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Belfast!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from St. Louis to Belfast 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 return flight deals from St. Louis to Belfast

Sun, 19 Jul - Wed, 29 Jul
British Airways Logo
21:40 - 14:35
STL
-
BHD
10h 55m
1 stop
British Airways Logo
20:35 - 19:21
BHD
-
STL
28h 46m
2 stops
£812British Airways
Sun, 5 Jul - Thu, 16 Jul
British Airways Logo
17:58 - 14:35
STL
-
BHD
14h 37m
2 stops
British Airways Logo
09:35 - 23:32
BHD
-
STL
19h 57m
2 stops
£814British Airways
Wed, 1 Jul - Thu, 16 Jul
Multiple Airlines Logo
17:03 - 13:35
STL
-
BHD
14h 32m
2 stops
Multiple Airlines Logo
09:35 - 23:32
BHD
-
STL
19h 57m
2 stops
£845Multiple Airlines
Wed, 1 Jul - Thu, 16 Jul
British Airways Logo
07:03 - 12:00
STL
-
BHD
22h 57m
2 stops
British Airways Logo
09:35 - 23:32
BHD
-
STL
19h 57m
2 stops
£852British Airways
Wed, 1 Jul - Wed, 15 Jul
British Airways Logo
07:03 - 12:00
STL
-
BHD
22h 57m
2 stops
British Airways Logo
10:05 - 21:53
BHD
-
STL
17h 48m
2 stops
£853British Airways
Sat, 4 Jul - Fri, 17 Jul
British Airways Logo
15:55 - 08:40
STL
-
BHD
34h 45m
2 stops
British Airways Logo
06:30 - 23:32
BHD
-
STL
23h 02m
2 stops
£856British Airways
Wed, 1 Jul - Fri, 17 Jul
British Airways Logo
07:03 - 12:00
STL
-
BHD
22h 57m
2 stops
British Airways Logo
09:35 - 23:32
BHD
-
STL
19h 57m
2 stops
£873British Airways
Sun, 19 Jul - Wed, 29 Jul
British Airways Logo
21:40 - 17:40
STL
-
BHD
14h 00m
1 stop
British Airways Logo
06:30 - 19:30
BHD
-
STL
19h 00m
1 stop
£886British Airways
Fri, 3 Jul - Fri, 17 Jul
British Airways Logo
19:56 - 15:05
STL
-
BHD
37h 09m
2 stops
British Airways Logo
06:30 - 23:32
BHD
-
STL
23h 02m
2 stops
£893British Airways
Sun, 5 Jul - Thu, 16 Jul
Multiple Airlines Logo
08:55 - 14:35
STL
-
BFS
23h 40m
2 stops
Multiple Airlines Logo
21:05 - 20:07
BFS
-
STL
29h 02m
3 stops
£1,021Multiple Airlines
Booking Insights

KAYAK’s insights & trends for St. Louis to Belfast flights

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

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

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 return tickets from St. Louis to Belfast were found on British Airways (£812) and American Airlines (£903).

Find deals

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 return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 £332 for a one-way ticket and £812 for a return.

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

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

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

Information on your arrival and departure airports

St. Louis (STL)