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$1,187+ Cheap flights from St. Louis (STL) to Belfast

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BHD
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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Cheap flight deals from St. Louis to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 19, 2024.

Find flights from St. Louis to Belfast within your budget

Customize your flight search to find flights from St. Louis to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 19, 2024.

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Depart

Return

Price

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Thu 6/12

6:13 pm-6:05 pm

2 stops17h 52m

Belfast City

Wed 6/18

8:15 pm-8:12 pm

2 stops29h 57m

$1,187

St. LouisBelfast

STL - BFS

STLBFS

Lambert-St Louis

Sun 2/2

3:45 pm-9:30 pm

2 stops23h 45m

Belfast Intl

Sun 2/9

5:45 am-9:45 pm

3 stops22h 00m

$1,441

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Thu 6/12

6:13 pm-7:55 pm

3 stops19h 42m

Belfast City

Wed 6/18

8:40 am-11:17 pm

2 stops20h 37m

$1,607

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Thu 6/12

2:34 pm-1:35 pm

3 stops17h 01m

Belfast City

Wed 6/18

9:50 am-11:17 pm

3 stops19h 27m

$1,675

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Travel insights for flights from St. Louis to Belfast

Get recent, data-driven insights about flights from St. Louis to Belfast including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from STL to BFS?

Find hourly flight availability from St. Louis to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

When flying from St. Louis to Belfast, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 48% versus a flight in the morning.

Rainfall in Belfast by month

Plan your trip to Belfast by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belfast ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Belfast when rainfall is around 2.0 in.

Temperature in Belfast by month

Plan your trip to Belfast by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belfast, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Belfast?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Belfast from St. Louis. Booking flights from Lambert-St Louis (STL) to Belfast should be relatively easy as there are 0 daily outbound flights to Belfast from 2 different airlines.

  • Can I find deals for flights from St. Louis to Belfast that include hotel bookings?

    Yes. In addition to deals on St. Louis to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Belfast.

  • Can I find deals for business class flights from St. Louis to Belfast?

    Yes. Cheapflights offers flight deals from St. Louis to Belfast by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Belfast (average of $657). Flying from St. Louis to Belfast in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for St. Louis to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Belfast City flights
St. Louis to Belfast Intl flights
St. Louis to Belfast City flights

Top 2 airlines flying from St. Louis to Belfast

Discover the top 2 airlines that operate flights from St. Louis to Belfast. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$658Average$771FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$672Average$1,074FlexibilityNo cancel feeOn-time70%
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