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Flights to Lambert-St Louis

€285 Cheap flights to St. Louis

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to St. Louis departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ireland to St. Louis

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
18:05 - 23:19
DUB
-
STL
34h 14m
2 stops
Multiple Airlines Logo
16:50 - 11:00
STL
-
DUB
13h 10m
1 stop
€674Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
16:46 - 11:50
STL
-
DUB
13h 04m
1 stop
€711Finnair
Wed, 6 May - Wed, 20 May
American Airlines Logo
11:30 - 23:35
DUB
-
STL
18h 05m
2 stops
American Airlines Logo
14:21 - 17:00
STL
-
DUB
20h 39m
2 stops
€743American Airlines
Fri, 27 Feb - Tue, 3 Mar
Multiple Airlines Logo
12:30 - 14:55
DUB
-
STL
31h 25m
2 stops
Multiple Airlines Logo
16:05 - 18:20
STL
-
DUB
21h 15m
3 stops
€745Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
American Airlines Logo
11:30 - 13:50
DUB
-
STL
32h 20m
2 stops
American Airlines Logo
14:21 - 17:00
STL
-
DUB
20h 39m
2 stops
€747American Airlines
Fri, 27 Feb - Tue, 3 Mar
American Airlines Logo
11:30 - 10:13
DUB
-
STL
28h 43m
2 stops
American Airlines Logo
14:21 - 17:00
STL
-
DUB
20h 39m
2 stops
€748American Airlines
Fri, 27 Feb - Tue, 3 Mar
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
12:27 - 09:45
STL
-
DUB
15h 18m
1 stop
€749Finnair
Wed, 6 May - Wed, 20 May
Finnair Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
Finnair Logo
12:27 - 09:45
STL
-
DUB
15h 18m
1 stop
€753Finnair
Wed, 6 May - Wed, 20 May
Multiple Airlines Logo
10:30 - 13:51
DUB
-
STL
32h 21m
2 stops
Multiple Airlines Logo
12:28 - 07:45
STL
-
DUB
14h 17m
1 stop
€761Multiple Airlines
Tue, 10 Mar - Tue, 17 Mar
Iberia Logo
11:30 - 23:02
DUB
-
STL
16h 32m
1 stop
Iberia Logo
14:00 - 08:40
STL
-
DUB
13h 40m
1 stop
€774Iberia
Tue, 10 Mar - Tue, 17 Mar

momondo Fare Finder

 
Locate flights to Lambert-St Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 13,528 searches and data was last updated on 27 January 2026.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 11/3

18:05-23:19

2 stops34h 14m

Lambert-St Louis

Wed 18/3

16:50-11:00

1 stop13h 10m

€674

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 6/5

09:30-19:30

1 stop16h 00m

Lambert-St Louis

Wed 20/5

16:46-11:50

1 stop13h 04m

€711

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 27/2

11:30-23:35

2 stops18h 05m

Lambert-St Louis

Tue 3/3

14:21-17:00

2 stops20h 39m

€743

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 10/3

12:30-14:55

2 stops31h 25m

Lambert-St Louis

Tue 17/3

16:05-18:20

3 stops21h 15m

€745

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 27/2

11:30-13:50

2 stops32h 20m

Lambert-St Louis

Tue 3/3

14:21-17:00

2 stops20h 39m

€747

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 27/2

11:30-10:13

2 stops28h 43m

Lambert-St Louis

Tue 3/3

14:21-17:00

2 stops20h 39m

€748

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 6/5

09:30-19:30

1 stop16h 00m

Lambert-St Louis

Wed 20/5

12:27-09:45

1 stop15h 18m

€749

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 6/5

09:30-19:30

1 stop16h 00m

Lambert-St Louis

Wed 20/5

12:27-09:45

1 stop15h 18m

€753

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 10/3

10:30-13:51

2 stops32h 21m

Lambert-St Louis

Tue 17/3

12:28-07:45

1 stop14h 17m

€761

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 10/3

11:30-23:02

1 stop16h 32m

Lambert-St Louis

Tue 17/3

14:00-08:40

1 stop13h 40m

€774

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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St. Louis flights insights and trends

Explore insights for your St. Louis flight to craft the best travel plan

What is the cheapest month to fly to St. Louis?

The cheapest month to fly to St. Louis from Ireland is in August. Flight prices, which tend to average around €692, are often lower during this time because this is during the off-season. The month of November is another great option to travel to St. Louis, with average flight prices from Ireland averaging around €715.

Cheapest flights to Lambert-St Louis

Find the cheapest flights to Lambert-St Louis from your nearest city or airport

Cheap St. Louis flight deals and tips

Summary info about St. Louis flight prices, duration and airlines

Best One-Way Price

€285

Best Round-Trip Price

€674

Fastest flight time

54h 31m

Popular in

January
The best one-way flight price to St. Louis from Ireland in the last 72 hours is €285 (Dublin to Lambert-St Louis).
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The best round-trip flight price to St. Louis from Ireland in the last 72 hours is €674 (Dublin to Lambert-St Louis).
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The fastest flight to St. Louis from Ireland takes 54h 31m (Dublin to Lambert-St Louis).
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January has the highest demand for flights to St. Louis, with a 6% price increase on average.
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Frequently asked questions about flying to St. Louis

Is there an alternative airport near St. Louis?

Belleville Airport, Marion Williamson County Airport or Springfield Capital Airport can be an alternative airport used for travel to St. Louis.

How long does it take to fly to St. Louis?

If you’re flying from a popular airport in Ireland, such as Dublin or Cork, and flying into St. Louis, then you can expect flight times to average 16h and , respectively.

When did momondo last update prices for flights to Lambert-St Louis Airport?

Prices for flights to Lambert-St Louis Airport were last updated today.

How many operators does momondo search for flights to Lambert-St Louis Airport?

The number of operators available for flights to Lambert-St Louis Airport is 2 as of January 2026.

How old do you have to be to fly to Lambert-St Louis Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis.

Can I find flights to St. Louis with flexible booking policies on momondo?

Flights to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights to St. Louis?

Once all potential St. Louis flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

I’m not ready to book a flight to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to St. Louis

Popular Flights to St. Louis

Popular routes according to searches in the past day on momondo
Dublin to Lambert-St Louis Flightsfrom €690