Cheap flights from Dublin to St. Louis

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St. Louis flight facts

What you need to know

What are the cheapest airlines?

  • United Airlines
  • American Airlines
  • Delta Air Lines

These airlines usually offer the cheapest flights from Dublin to St. Louis.

What airlines fly indirectly?

  • British Airways
  • Lufthansa
  • Air France

These airlines fly from Dublin to St. Louis, but you’ll have at least one layover.

How long is the flight?

14 hours

This is the shortest flight time from Dublin to St. Louis.

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Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Dublin/St. Louis route. There are around 35 flights on any given week from the UK to St. Louis and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.

How to get cheap flights from Dublin to St. Louis

Tips and advice from our flight experts

You've searched for flights from Dublin to St. Louis. We've found 25 flights and compared them to give you the best offers. United Airlines is usually the cheapest for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for £42 from Dublin to St. Louis on 29/01/2026 at 18:15.

We've scanned hundreds of airfares from various airlines across the globe. In total, we've found 5 airlines that operate the 7,000 km flight from Dublin to St. Louis.

To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Try United Airlines for budget-friendly options. The average flight duration is around 14 hours. After selecting an offer, fill out your information and proceed with payment. Don't forget to check our hotel booking options or use our flight + hotel service to save time and money.