$458 Cheap Flights from Dublin (DUB) to St. Louis (STL)

View $458 flight on Tue, May 12, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $458 for one-way flights and $787 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Wed, Jan 14 - Mon, Feb 9
DUB
Dublin
STL
St. Louis
$787 Roundtrip, found 2 days ago
$787
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Wed, Jan 14 from Dublin to St. Louis, returning Mon, Feb 9, priced at $787 found 2 days ago
Icelandair
Wed, Jan 21 - Wed, Feb 11
DUB
Dublin
STL
St. Louis
$809 Roundtrip, found 3 days ago
$809
Roundtrip
found 3 days ago
Select Icelandair flight, departing Wed, Jan 21 from Dublin to St. Louis, returning Wed, Feb 11, priced at $809 found 3 days ago
Aer Lingus
Sun, Apr 19 - Tue, Apr 28
DUB
Dublin
STL
St. Louis
$860 Roundtrip, found 1 hour ago
$860
Roundtrip
found 1 hour ago
Select Aer Lingus flight, departing Sun, Apr 19 from Dublin to St. Louis, returning Tue, Apr 28, priced at $860 found 1 hour ago
Aer Lingus
Sun, Apr 19 - Tue, Apr 28
DUB
Dublin
STL
St. Louis
$868 Roundtrip, found 1 hour ago
$868
Roundtrip
found 1 hour ago
Select Aer Lingus flight, departing Sun, Apr 19 from Dublin to St. Louis, returning Tue, Apr 28, priced at $868 found 1 hour ago
Icelandair
Sat, Jan 24 - Sat, Jan 31
DUB
Dublin
STL
St. Louis
$882 Roundtrip, found 14 hours ago
$882
Roundtrip
found 14 hours ago
Select Icelandair flight, departing Sat, Jan 24 from Dublin to St. Louis, returning Sat, Jan 31, priced at $882 found 14 hours ago
Icelandair
Thu, Jan 15 - Thu, Feb 12
DUB
Dublin
STL
St. Louis
$886 Roundtrip, found 2 days ago
$886
Roundtrip
found 2 days ago
Select Icelandair flight, departing Thu, Jan 15 from Dublin to St. Louis, returning Thu, Feb 12, priced at $886 found 2 days ago
American Airlines
Wed, Jan 21 - Wed, Feb 11
DUB
Dublin
STL
St. Louis
$894 Roundtrip, found 3 days ago
$894
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Jan 21 from Dublin to St. Louis, returning Wed, Feb 11, priced at $894 found 3 days ago
American Airlines
Wed, Jan 21 - Wed, Feb 11
DUB
Dublin
STL
St. Louis
$896 Roundtrip, found 3 days ago
$896
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Jan 21 from Dublin to St. Louis, returning Wed, Feb 11, priced at $896 found 3 days ago
American Airlines
Wed, Jan 21 - Wed, Feb 11
DUB
Dublin
STL
St. Louis
$900 Roundtrip, found 3 days ago
$900
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Jan 21 from Dublin to St. Louis, returning Wed, Feb 11, priced at $900 found 3 days ago
Lufthansa
Wed, Jan 21 - Wed, Feb 11
DUB
Dublin
STL
St. Louis
$908 Roundtrip, found 3 days ago
$908
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Jan 21 from Dublin to St. Louis, returning Wed, Feb 11, priced at $908 found 3 days 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 $913
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $913

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 $458 or cheap return flight from $787 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
$787
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 $458 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.