Which airports can I use when flying from St. Louis to Belfast?

Flights from St. Louis to Belfast usually depart from Lambert-St Louis (STL) and may arrive at several airports in Belfast area, including Belfast Intl (BFS) and Belfast City (BHD).

Which cabin classes can I book on flights from St. Louis to Belfast?

Only Economy class is available on flights from St. Louis to Belfast.

Can I save money by using flexible dates for flights from St. Louis to Belfast?

Yes. Flexible dates can save you up to 27% on flights from St. Louis to Belfast. Saturday is the cheapest departure day at £535 return on average, while Monday is the most expensive at £723, a difference of £188. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in Belfast?

Some of the most popular sights in Belfast are Waterfront Hall, SSE Arena, and Grand Opera House. These are among the most viewed places in Belfast on KAYAK.

Do I need a passport to fly from St. Louis to Belfast?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

What is the time difference between St. Louis and Belfast?

Belfast is 5 hours ahead of St. Louis (British Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

What car hire options are available in Belfast?

Since Belfast is served by multiple airports, car hire options and rates can vary depending on which one you fly into. Near Belfast City Airport (BHD) – daily rates from around £31: • Budget • Sixt • Enterprise Rent-A-Car • Avis • Hertz Near Belfast Intl Airport (BFS) – daily rates from around £28: • Budget • DRIVALIA • Sixt • Alamo • Hertz

How much is a return flight from St. Louis to Belfast?

Return flights from St. Louis to Belfast typically range from £476 to £723. The lowest price found in the past 5 days was £655 on British Airways.

Which airline is the cheapest to fly from St. Louis to Belfast?

British Airways (£655) offered the cheapest return ticket from St. Louis to Belfast in the last 5 days.

£655 CHEAP FLIGHTS from St. Louis to Belfast (STL - BF1)

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Cheapest return flight

£655

Typical prices: £476-£723

British Airways

Sat 31/3Thu 12/4

STL - BHD • 1 stop

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

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Recent return flight deals from St. Louis to Belfast

Wed, 31 Mar - Mon, 12 Apr

21:35 - 18:45STL Lambert-St Louis-BHD Belfast City

15h 10m1 stop London Heathrow

18:30 - 19:30BHD Belfast City-STL Lambert-St Louis

31h 00m1 stop London Heathrow

£655British Airways

Wed, 31 Mar - Mon, 12 Apr

14:23 - 13:35STL Lambert-St Louis-BHD Belfast City

17h 12m2 stops Dallas/Fort Worth London Heathrow

18:30 - 19:30BHD Belfast City-STL Lambert-St Louis

31h 00m1 stop London Heathrow

£658British Airways

Wed, 31 Mar - Mon, 12 Apr

14:21 - 12:00STL Lambert-St Louis-BHD Belfast City

15h 39m2 stops Chicago O'Hare Intl London Heathrow

19:35 - 19:27BHD Belfast City-STL Lambert-St Louis

29h 52m2 stops London Heathrow Philadelphia

£682British Airways

Mon, 1 Mar - Wed, 3 Mar

14:21 - 10:50STL Lambert-St Louis-BHD Belfast City

14h 29m2 stops Chicago O'Hare Intl London Heathrow

15:45 - 19:32BHD Belfast City-STL Lambert-St Louis

33h 47m2 stops London Heathrow Chicago O'Hare Intl

£862British Airways

Mon, 1 Mar - Wed, 3 Mar

14:21 - 14:15STL Lambert-St Louis-BHD Belfast City

17h 54m2 stops Chicago O'Hare Intl London Heathrow

17:35 - 19:32BHD Belfast City-STL Lambert-St Louis

31h 57m2 stops London Heathrow Chicago O'Hare Intl

£863British Airways

Mon, 16 Nov - Wed, 18 Nov

11:35 - 10:50STL Lambert-St Louis-BHD Belfast City

17h 15m2 stops Chicago O'Hare Intl London Heathrow

15:45 - 20:33BHD Belfast City-STL Lambert-St Louis

34h 48m2 stops London Heathrow Philadelphia

£1,231British Airways

Mon, 16 Nov - Wed, 18 Nov

09:50 - 09:05STL Lambert-St Louis-BHD Belfast City

17h 15m2 stops Boston Logan Intl London Heathrow

15:45 - 20:33BHD Belfast City-STL Lambert-St Louis

34h 48m2 stops London Heathrow Philadelphia

£1,231British Airways

Wed, 31 Mar - Mon, 12 Apr

07:31 - 08:45STL Lambert-St Louis-BHD Belfast City

43h 14m3 stops Chicago O'Hare Intl Hong Kong Intl London Heathrow

11:35 - 22:09BHD Belfast City-STL Lambert-St Louis

40h 34m3 stops London Heathrow Hong Kong Intl San Francisco

£10,332Multiple Airlines

Booking Insights

Price, demand, and travel trends for St. Louis to Belfast flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

How much is a return flight from St. Louis to Belfast? This analysis is based on the cheapest return price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Belfast departing in March.

Find deals

Cheapest flight	£655

Return 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 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.

Which cabin classes can I book on flights from St. Louis to Belfast?
Only Economy class is available on flights from St. Louis to Belfast.
Do I need a passport to fly from St. Louis to Belfast?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
What car hire options are available in Belfast?
Since Belfast is served by multiple airports, car hire options and rates can vary depending on which one you fly into.
Near Belfast City Airport (BHD) – daily rates from around £31:

• Budget
• Sixt
• Enterprise Rent-A-Car
• Avis
• Hertz

Near Belfast Intl Airport (BFS) – daily rates from around £28:

• Budget
• DRIVALIA
• Sixt
• Alamo
• Hertz
Which airports can I use when flying from St. Louis to Belfast?
Flights from St. Louis to Belfast usually depart from Lambert-St Louis (STL) and may arrive at several airports in Belfast area, including Belfast Intl (BFS) and Belfast City (BHD).
Can I save money by using flexible dates for flights from St. Louis to Belfast?
Yes. Flexible dates can save you up to 27% on flights from St. Louis to Belfast. Saturday is the cheapest departure day at £535 return on average, while Monday is the most expensive at £723, a difference of £188.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
What is the time difference between St. Louis and Belfast?
Belfast is 5 hours ahead of St. Louis (British Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Belfast?
Some of the most popular sights in Belfast are Waterfront Hall, SSE Arena, and Grand Opera House. These are among the most viewed places in Belfast on KAYAK.

If your dates are flexible, aim for a Saturday departure and avoid flying on Monday. On this route, Saturday flights average £535, about £188 less than Monday fares (26% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Belfast City Airport.

• Titanic Hotel Belfast
• Park Avenue
• Premier Inn Belfast Titanic Quarter

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£655 Find Cheap Flights from St. Louis to Belfast – Compare and Save

Everything you should know

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

Recent return flight deals from St. Louis to Belfast

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Price, demand, and travel trends for St. Louis to Belfast flights

How much is a return flight from St. Louis to Belfast?

Which airline is the cheapest to fly from St. Louis to Belfast?

Key details for St. Louis to Belfast flights

Cheapest flight

When to book flights from St. Louis to Belfast

Your St. Louis to Belfast flight questions, answered

Your guide to booking St. Louis to Belfast flights

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