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Cheap flights from Ireland to St. Louis from £314

DUB — STL
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ireland to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from Ireland to St. Louis

Mon 16/1105:45 -
2 stops23h 37m
Sun 29/1106:13 -
1 stop19h 42m
Deal found 9/11£524
Thu 19/1105:45 -
2 stops20h 44m
Wed 2/1212:31 -
2 stops14h 29m
Deal found 10/11£525
Sat 14/1105:45 -
2 stops20h 44m
Fri 27/1106:40 -
2 stops20h 05m
Deal found 6/11£525
Fri 13/1108:50 -
2 stops20h 32m
Thu 26/1113:00 -
2 stops14h 00m
Deal found 6/11£526
Mon 7/1209:55 -
1 stop12h 35m
Mon 14/1207:03 -
1 stop18h 42m
Deal found 9/11£531
Thu 26/1109:55 -
1 stop12h 28m
Wed 9/1215:32 -
1 stop10h 23m
Deal found 10/11£551
Thu 24/1205:45 -
2 stops20h 58m
Thu 31/1206:00 -
2 stops20h 45m
Deal found 8/11£566
Mon 21/1209:55 -
2 stops20h 00m
Mon 28/1206:20 -
2 stops19h 45m
Deal found 6/11£616
Sat 14/1106:35 -
2 stops21h 49m
Fri 27/1117:29 -
2 stops14h 46m
Deal found 7/11£657
Sun 22/1108:55 -
2 stops20h 27m
Wed 25/1109:45 -
2 stops17h 15m
Deal found 8/11£663

Find flight deals from Ireland to St. Louis

Round-trip from

£525

One-way from

£314

Popular in

July

Cheapest in

April

Average price

£844
Delta
  • Delta
  • 26/11-9/12
  • 4 total stops
  • 31h 10m total
  • Ireland to St. Louis
Search Deals
Delta
  • Delta
  • 21/2-31/12
  • 2 total stops
  • 19h 29m total
  • Ireland to St. Louis
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£63 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sun 21/2

08:55-22:24

2 stops19h 29m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£314

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Mon 7/12

05:45-00:05

2 stops24h 20m

Lambert-St Louis

Mon 14/12

18:05-18:25

2 stops18h 20m

£525

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Thu 26/11

09:55-16:23

1 stop12h 28m

Lambert-St Louis

Wed 9/12

15:32-07:55

1 stop10h 23m

£551

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Thu 24/12

05:45-20:43

2 stops20h 58m

Lambert-St Louis

Thu 31/12

06:00-08:45

2 stops20h 45m

£566

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Mon 21/12

09:55-23:55

2 stops20h 00m

Lambert-St Louis

Mon 28/12

06:20-08:05

2 stops19h 45m

£616

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sun 29/11

10:40-21:40

2 stops41h 00m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£633

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sun 22/11

08:55-23:22

2 stops20h 27m

Lambert-St Louis

Wed 25/11

09:45-09:00

2 stops17h 15m

£663

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sat 9/1

07:35-22:49

2 stops21h 14m

Lambert-St Louis

Tue 19/1

17:51-14:20

2 stops14h 29m

£664

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Tue 5/1

20:40-17:52

2 stops27h 12m

Lambert-St Louis

Fri 15/1

13:49-10:05

2 stops14h 16m

£664

DublinSt. Louis

DUB Dublin - STL Lambert-St Louis

DUBSTL

Dublin

Sat 13/3

06:35-23:50

2 stops23h 15m

Lambert-St Louis

Sun 21/3

20:02-17:45

2 stops16h 43m

£681

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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

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

Cheapflights Insights

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

What is the cheapest month to book a flight from Ireland to St. Louis?

Currently, April is the cheapest month in which you can book a flight from Ireland to St. Louis (average of £731). Flying from Ireland to St. Louis in July is currently the most expensive (average of £1,098). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Ireland to St. Louis, such as United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.3
Good
10,471 reviews
Check prices

Food

6.7

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.3

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
7.3
Good
10,471 reviews
United Airlines
7.3
Good
10,471 reviews
Check prices

Food

6.7

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.3

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

  • What airport do you fly into for flights to St. Louis from Ireland?

    If you book a flight to St. Louis from Ireland, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How long is the flight from Ireland to St. Louis?

    Airlines like Delta fly from Ireland to St. Louis in about 24h 20m. The time it takes to get you to your destination can typically vary by up to . There are 3909 mi between Ireland and St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ireland 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.

  • What is the cheapest month to book a flight from Ireland to St. Louis?

    Currently, April is the cheapest month in which you can book a flight from Ireland to St. Louis (average of £731). Flying from Ireland to St. Louis in July is currently the most expensive (average of £1,098). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Ireland to St. Louis

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£648Average£936FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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Yes! Start tracking prices for Ireland 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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