How long is the flight from Dublin to St. Louis?

A quick flight from Dublin to St. Louis can take about 12h 19m. British Airways provides one of the quickest options available for as low as £805. The distance between Dublin and St. Louis is about 3909 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines flying from Dublin to St. Louis round-trip?

According to our current data, United Airlines (£657), and Aer Lingus (£737) offers the cheapest pricing from Dublin to St. Louis. United Airlines is priced at 24% lower than the current average price of a flight leaving 3 months from now.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 inches per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

What is the cheapest time of day to fly from DUB to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to St. Louis as you normally would.

Can I find deals for flights from Dublin to St. Louis that include hotel bookings?

Yes. In addition to deals on Dublin to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Dublin to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to St. Louis.

Can I find deals for business class flights from Dublin to St. Louis?

Yes. Cheapflights offers flight deals from Dublin to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£649+ Cheap Flights from Dublin to St. Louis

Cheap flight deals from Dublin to St. Louis

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

Cheapest flights from Dublin to St. Louis
Explore the most affordable flight options available from Dublin to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 October 2026.

Wed 11/1111:30 -

2 stops16h 45m

Wed 18/1110:30 -

2 stops17h 45m

Deal found 27/9£649

Fri 18/1211:30 -

2 stops18h 25m

Mon 4/110:15 -

2 stops18h 00m

Deal found 30/9£669

Fri 18/1211:30 -

2 stops18h 25m

Fri 8/108:35 -

2 stops19h 40m

Deal found 1/10£738

Sat 14/1106:10 -

2 stops31h 35m

Tue 1/1206:30 -

2 stops34h 00m

Deal found 30/9£761

Thu 29/1006:10 -

2 stops30h 35m

Wed 11/1107:30 -

2 stops50h 00m

Deal found 28/9£763

Thu 12/1109:00 -

1 stop12h 26m

Thu 3/1209:40 -

1 stop16h 30m

Deal found 30/9£798

Wed 11/1105:10 -

1 stop14h 35m

Sat 28/1113:00 -

1 stop15h 20m

Deal found 1/10£799

Sat 14/1109:00 -

2 stops16h 23m

Sat 28/1109:44 -

1 stop15h 46m

Deal found 30/9£802

Fri 13/1105:10 -

1 stop14h 35m

Tue 1/1211:00 -

1 stop16h 55m

Deal found 30/9£803

Wed 11/1109:30 -

2 stops14h 39m

Tue 1/1215:25 -

1 stop10h 45m

Deal found 30/9£805

Fri 6/1112:05 -

1 stop13h 25m

Thu 19/1109:59 -

1 stop15h 31m

Deal found 29/9£807

Find flight deals from Dublin to St. Louis

Round-trip from	£649
Popular in	July
Cheapest in	April
Average price	£773

11/11-18/11
4 total stops
34h 30m total
Dublin to St. Louis

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£85 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Wed 11/11

11:30-22:15

2 stops16h 45m

Lambert-St Louis

Wed 18/11

10:55-10:15

3 stops17h 20m

£699

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Thu 14/1

13:05-22:34

2 stops15h 29m

Lambert-St Louis

Mon 18/1

17:50-17:05

2 stops17h 15m

£744

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sun 15/11

09:00-15:26

1 stop12h 26m

Lambert-St Louis

Tue 1/12

11:00-07:30

1 stop14h 30m

£798

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Thu 12/11

09:00-15:26

1 stop12h 26m

Lambert-St Louis

Mon 30/11

06:00-07:30

1 stop19h 30m

£798

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Mon 16/11

09:00-15:26

1 stop12h 26m

Lambert-St Louis

Mon 30/11

11:29-09:55

1 stop16h 26m

£798

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Wed 11/11

05:10-13:45

1 stop14h 35m

Lambert-St Louis

Sat 28/11

13:00-10:20

1 stop15h 20m

£799

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sun 15/11

09:00-21:40

2 stops18h 40m

Lambert-St Louis

Fri 4/12

11:05-07:30

1 stop14h 25m

£802

Fastest return journey

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Tue 17/11

09:30-18:09

2 stops14h 39m

Lambert-St Louis

Wed 2/12

15:25-08:10

1 stop10h 45m

£805

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Fri 6/11

12:05-19:30

1 stop13h 25m

Lambert-St Louis

Thu 19/11

09:59-07:30

1 stop15h 31m

£807

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Fri 6/11

05:45-23:21

2 stops23h 36m

Lambert-St Louis

Thu 19/11

10:20-08:05

2 stops15h 45m

£817

Flights are sorted by cheapest return flights first.

Deals found on 27/9

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from Dublin to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Dublin with our price prediction graph.

DUB-STL

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dublin to St. Louis

What’s the top stopover airport for flights from Dublin to St. Louis?

London (LHR) – chosen by Cheapflights users on 50% of one-stop itineraries from Dublin to St. Louis on Cheapflights.

What’s the cheapest stopover airport for flights from Dublin to St. Louis?

London (LHR) is the most affordable one-stop option, with an average return flight price of £739.

What’s the fastest stopover option from Dublin to St. Louis?

Flights via Detroit (DTW) have the shortest average one-way travel time for one-stop routes: 11h 14m.

Which airport typically offers the quickest stopover for flights from Dublin to St. Louis?

Flights via Newark (EWR) offer the fastest connection on this route, with an average stopover time of 1h 30m.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown with United Airlines and Aer Lingus from Dublin to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,273 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Asha,Sept 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

United Airlines

7.4

Good

10,273 reviews

United Airlines

7.4

Good

10,273 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Asha,Sept 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Aer Lingus

7.3

Good

1,803 reviews

United Airlines

7.4

Good

10,273 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Asha,Sept 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

How long is the flight from Dublin to St. Louis?
A quick flight from Dublin to St. Louis can take about 12h 19m. British Airways provides one of the quickest options available for as low as £805. The distance between Dublin and St. Louis is about 3909 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Dublin to St. Louis round-trip?
According to our current data, United Airlines (£657), and Aer Lingus (£737) offers the cheapest pricing from Dublin to St. Louis. United Airlines is priced at 24% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for flights from Dublin to St. Louis that include hotel bookings?
Yes. In addition to deals on Dublin to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Dublin to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to St. Louis.
Can I find deals for business class flights from Dublin to St. Louis?
Yes. Cheapflights offers flight deals from Dublin to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Other flights from Dublin

Popular flights

St. Louis flight routes

Alternative routes for Dublin to St. Louis

Dublin to Kansas City flights

Top 2 airlines flying from Dublin to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest£657	Average£949	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£737	Average£740	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

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Cheapflights helps you search for flights from Dublin to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Dublin to St. Louis?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Dublin to St. Louis.

Can Cheapflights find flights from Dublin to St. Louis with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Dublin to St. Louis, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Dublin to St. Louis become cheaper?

Yes! Start tracking prices for Dublin to St. Louis flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Dublin to St. Louis from £649

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dublin to St. Louis

Cheapest flights from Dublin to St. LouisExplore the most affordable flight options available from Dublin to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 October 2026.

Explore the most affordable flight options available from Dublin to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 October 2026.

Best flights from Dublin to St. LouisDiscover carefully curated flight deals from Dublin to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.

Discover carefully curated flight deals from Dublin to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.

Last-minute flights from Dublin to St. LouisDiscover last-minute flight deals from Dublin to St. Louis. Data last updated 1 October 2026 and is based on user searches.

Discover last-minute flight deals from Dublin to St. Louis. Data last updated 1 October 2026 and is based on user searches.

Find flight deals from Dublin to St. Louis

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Use the filters below to find and compare flights from Dublin to St. Louis that are best for you.

Best time to book a flight from Dublin to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Dublin with our price prediction graph.

Cheapflights Insights

What’s the top stopover airport for flights from Dublin to St. Louis?

London (LHR) – chosen by Cheapflights users on 50% of one-stop itineraries from Dublin to St. Louis on Cheapflights.

What’s the cheapest stopover airport for flights from Dublin to St. Louis?

London (LHR) is the most affordable one-stop option, with an average return flight price of £739.

What’s the fastest stopover option from Dublin to St. Louis?

Flights via Detroit (DTW) have the shortest average one-way travel time for one-stop routes: 11h 14m.

Which airport typically offers the quickest stopover for flights from Dublin to St. Louis?

Flights via Newark (EWR) offer the fastest connection on this route, with an average stopover time of 1h 30m.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown with United Airlines and Aer Lingus from Dublin to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Dublin to St. Louis?

What are the cheapest airlines flying from Dublin to St. Louis round-trip?

Can I find deals for flights from Dublin to St. Louis that include hotel bookings?

How can I find direct flights from Dublin to St. Louis?

Can I find deals for business class flights from Dublin to St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dublin to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to St. Louis by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Dublin to St. Louis by cabin class

Find flights from Dublin to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dublin and St. Louis flights

Browse other Dublin and St. Louis flight options. Last updated on 1 October 2026.

Other flights from Dublin

Browse through other flights departing from Dublin. Flights are based on user searches made on Cheapflights and were last updated on 1 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to St. Louis

Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 1 October 2026.

Top 2 airlines flying from Dublin to St. Louis

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How does Cheapflights help users find flights from Dublin to St. Louis?

Why should you use Cheapflights to find cheap flight tickets from Dublin to St. Louis?

Can Cheapflights find flights from Dublin to St. Louis with no change fees?

Can Cheapflights notify me if prices for flights from Dublin to St. Louis become cheaper?

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Cheapest flights from Dublin to St. Louis
Explore the most affordable flight options available from Dublin to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 October 2026.

Best flights from Dublin to St. Louis
Discover carefully curated flight deals from Dublin to St. Louis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 October 2026.

Last-minute flights from Dublin to St. Louis
Discover last-minute flight deals from Dublin to St. Louis. Data last updated 1 October 2026 and is based on user searches.