$456 Cheap Flights from Dublin (DUB) to St. Louis (STL)

View $456 flight on Tue, Apr 28, 2026Opens in a new window

Popular airlines from Dublin Airport (DUB) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Dublin to St. Louis (DUB-STL)

Prices were available within the past 7 days and start at $456 for one-way flights and $659 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Thu, Jan 22 - Sat, Feb 7
DUB
Dublin
STL
St. Louis
$659 Roundtrip, found 1 day ago
$659
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, Jan 22 from Dublin to St. Louis, returning Sat, Feb 7, priced at $659 found 1 day ago
Scandinavian Airlines
Wed, Dec 10 - Mon, Jan 12
DUB
Dublin
STL
St. Louis
$660 Roundtrip, found 2 days ago
$660
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Wed, Dec 10 from Dublin to St. Louis, returning Mon, Jan 12, priced at $660 found 2 days ago
Scandinavian Airlines
Thu, Jan 8 - Sat, Jan 17
DUB
Dublin
STL
St. Louis
$694 Roundtrip, found 1 day ago
$694
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, Jan 8 from Dublin to St. Louis, returning Sat, Jan 17, priced at $694 found 1 day ago
Scandinavian Airlines
Thu, Jan 8 - Sat, Jan 24
DUB
Dublin
STL
St. Louis
$728 Roundtrip, found 1 day ago
$728
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, Jan 8 from Dublin to St. Louis, returning Sat, Jan 24, priced at $728 found 1 day ago
Icelandair
Wed, Dec 10 - Thu, Jan 8
DUB
Dublin
STL
St. Louis
$776 Roundtrip, found 1 day ago
$776
Roundtrip
found 1 day ago
Select Icelandair flight, departing Wed, Dec 10 from Dublin to St. Louis, returning Thu, Jan 8, priced at $776 found 1 day ago
Scandinavian Airlines
Sun, Jan 11 - Sat, Jan 17
DUB
Dublin
STL
St. Louis
$778 Roundtrip, found 1 day ago
$778
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Sun, Jan 11 from Dublin to St. Louis, returning Sat, Jan 17, priced at $778 found 1 day ago
Scandinavian Airlines
Wed, Dec 10 - Thu, Jan 15
DUB
Dublin
STL
St. Louis
$779 Roundtrip, found 2 days ago
$779
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Wed, Dec 10 from Dublin to St. Louis, returning Thu, Jan 15, priced at $779 found 2 days ago
Aer Lingus
Sun, Apr 19 - Tue, Apr 28
DUB
Dublin
STL
St. Louis
$860 Roundtrip, found 5 days ago
$860
Roundtrip
found 5 days ago
Select Aer Lingus flight, departing Sun, Apr 19 from Dublin to St. Louis, returning Tue, Apr 28, priced at $860 found 5 days ago
Lufthansa
Fri, Nov 21 - Thu, Dec 4
DUB
Dublin
STL
St. Louis
$912 Roundtrip, found 2 days ago
$912
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Nov 21 from Dublin to St. Louis, returning Thu, Dec 4, priced at $912 found 2 days ago
British Airways
Sun, Dec 14 - Fri, Jan 16
DUB
Dublin
STL
St. Louis
$921 Roundtrip, found 1 day ago
$921
Roundtrip
found 1 day ago
Select British Airways flight, departing Sun, Dec 14 from Dublin to St. Louis, returning Fri, Jan 16, priced at $921 found 1 day ago

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $927
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $927

Frequently asked questions

How much does a flight from Dublin Airport (DUB) to Lambert-St. Louis Intl. Airport (STL) cost?
Snag a cheap one-way flight from $456 or cheap return flight from $659 from Dublin Airport (DUB) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Dublin Airport (DUB) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from DUB to STL is January, when there's less demand. Off-peak months are usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Dublin Airport (DUB) to Lambert-St. Louis Intl. Airport (STL)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DUB to STL flight.
How many flights per day from Dublin Airport (DUB) to Lambert-St. Louis Intl. Airport (STL)?
Nonstop flights from Dublin Airport (DUB) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DUB to STL?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can vary based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dublin Airport (DUB) to Lambert-St. Louis Intl. Airport (STL)?
To touch down at Lambert-St. Louis Intl. Airport (STL) on time, pick a flight that takes off from Dublin Airport (DUB) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Dublin Airport (DUB) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute bookings from DUB to STL are generally more expensive. For the best rates, start searching for flights well ahead of time. That said, if you can play around with your travel dates, it's possible to score a cheap fare just before your departure.
Is it cheaper to book a DUB to STL flight and hotel package?
Compared with arranging flights and hotels separately, booking a DUB to STL flight and hotel package with Expedia could result in significant savings. Better still, having everything in one convenient place will take the stress out of planning your trip. Simply secure your flights and select from our extensive range of stays, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Dublin Airport (DUB) to Lambert-St. Louis Intl. Airport (STL)?
It's usually possible to reschedule or cancel your DUB to STL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Dublin
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, United
Roundtrip price
$658
Distance
3912 mi

Book with confidence

Dublin to St. Louis Flights

The cheapest times to fly from Dublin to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Dublin to St. Louis are during the month of January. You can find some of the cheapest flights from Dublin to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Dublin to St. Louis

Sunday is one of the best days to book for cheap flights from Dublin to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Dublin to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Dublin to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $456 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Dublin to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Dublin to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Dublin to St. Louis Flights

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*Available to One Key members.