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STL - BFS

Find cheap flights from St. Louis to Belfast Intl Airport

1 adult
0 bags
Sun 6/23
Sun 6/30

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

 
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 43,278,837 times on KAYAK, and here is why:

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

 
These are the cheapest deals for flights from St. Louis to Belfast Intl 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 Intl

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

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

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

Recent last minute flight deals from St. Louis to Belfast Intl

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

Recent direct flight deals from St. Louis to Belfast Intl

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

Cheap bus & train deals from St. Louis to Belfast Intl

Find recent round-trip train or bus tickets from St. Louis to Belfast Intl.

All round-trip flight deals to Belfast Intl

The cheapest plane tickets to Belfast Intl found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
STL-BFS
3879 mimulti-stop
BFS-STL
3879 mimulti-stop
Multiple Airlines
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STL-BFS
3879 mimulti-stop
Multiple Airlines
Find Deal

Good to know

Low season

August

High season

December
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly and prices are also 5% lower on average.

When to book flights from St. Louis to Belfast Intl

Are your dates flexible? Find out the best times to travel from St. Louis to Belfast Intl 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 St. Louis to Belfast Intl Airport flights

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

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

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

    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 Intl Airport?

    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 Intl Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast Intl Airport 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 Intl Airport?

    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 Intl Airport with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BFS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Belfast Intl Airport?

    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 Intl Airport 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

Top airline flying from St. Louis to Belfast Intl

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Belfast. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Belfast Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
American AirlinesOverall score based on 14388 reviews
6.6Food
7.6Boarding
7.2Comfort
8.0Crew
7.1Entertainment
Airline reviews

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

2.0 MediocreAnonymous, May 2024CLT - LHR
Read more about American Airlines reviews

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

This was not the BA business class it used to be. Mediocre food, attendants seemed stretched thin. All the little luxuries that used to make BA business fun were missing. Flight delayed and the explanation given was they forgot to pick up crew - I hope I misheard! Transfer in LHR “sticky” - we thought we had way too much time at 3hours but it was needed. Next time will try different route.

Always getting updates by email very easy to check in on line. There was plenty of checking in staff to get you all through. It was nice that the flight attendants took time to talk to you and were interested in your holiday.

Book cheap flights from St. Louis to Belfast

One-way flight deals

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3879 miSTL-BFS

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St. Louis - Belfast Intl Airport Flights

Departure:

St. Louis (STL)United States

Destination:

Belfast Intl Airport (BFS)United Kingdom

Cabin classes: