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Cheap flights from Belfast to St. Louis

BHD — STL
3 Sep — 10 Sep1
1 adult

Best time to book a flight from Belfast to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Belfast with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 29 August 2025.
Read reviews from past customers who have flown with British Airways from Belfast to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,320 reviews
Check prices

Comfort

6.7

Boarding

6.9

Food

6.3

Entertainment

6.4

Crew

7.6

Overall

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
7,320 reviews
British Airways
6.7
Okay
7,320 reviews
Check prices

Comfort

6.7

Boarding

6.9

Food

6.3

Entertainment

6.4

Crew

7.6

Overall

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

Find useful and relevant information for your journey from Belfast to St. Louis. 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 into for flights to St. Louis from Belfast?

    For a flight from Belfast to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from Belfast per day. 1 airline has flights to Lambert-St Louis from Belfast on a regular basis.

  • What is the cheapest airline to fly from Belfast to St. Louis round-trip?

    Currently priced at £822, British Airways will fly you from Belfast to St. Louis and back. In addition to British Airways, many other airlines offer competitively priced options for your trip.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast to St. Louis 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 Belfast to St. Louis?

    Currently, February is the cheapest month in which you can book a flight from Belfast to St. Louis (average of £722). Flying from Belfast to St. Louis in December is currently the most expensive (average of £1,033). 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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Top airline flying from Belfast to St. Louis

Discover the top airline that operate flights from Belfast to St. Louis. 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 858,174 searches. Data last updated 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£822Average£888FlexibilityNo cancel feeOn-time70%
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How does Cheapflights help users find flights from Belfast to St. Louis?

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Why should you use Cheapflights to find cheap flight tickets from Belfast to St. Louis?

Cheapflights helps you find that perfect flight to St. Louis from Belfast by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Belfast to St. Louis with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Belfast to St. Louis flexibly with Cheapflights today.

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