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Flights to Lambert-St Louis

€338 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 25/9. 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
1 adult, Economy, 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.
Scandinavian Airlines Logo
19:05 - 23:58
DUB
-
STL
34h 53m
2 stops
Scandinavian Airlines Logo
14:30 - 18:20
STL
-
DUB
21h 50m
2 stops
€708Scandinavian Airlines
Sun, 30 Aug - Mon, 14 Sep
Multiple Airlines Logo
07:05 - 15:28
DUB
-
STL
38h 23m
2 stops
Multiple Airlines Logo
15:30 - 11:40
STL
-
DUB
14h 10m
1 stop
€817Multiple Airlines
Sun, 30 Aug - Mon, 14 Sep
WestJet Logo
09:40 - 20:42
DUB
-
STL
17h 02m
2 stops
WestJet Logo
10:29 - 09:20
STL
-
DUB
16h 51m
2 stops
€844WestJet
Sat, 5 Sep - Sat, 19 Sep
Multiple Airlines Logo
09:40 - 22:59
DUB
-
STL
19h 19m
3 stops
Multiple Airlines Logo
12:10 - 07:45
STL
-
DUB
13h 35m
1 stop
€861Multiple Airlines
Thu, 27 Aug - Wed, 9 Sep
United Airlines Logo
13:35 - 23:38
DUB
-
STL
16h 03m
1 stop
United Airlines Logo
17:36 - 09:45
STL
-
DUB
10h 09m
1 stop
€862United Airlines
Wed, 23 Sep - Sat, 3 Oct
Multiple Airlines Logo
09:30 - 00:14
DUB
-
STL
20h 44m
1 stop
Multiple Airlines Logo
21:35 - 19:30
STL
-
DUB
15h 55m
1 stop
€903Multiple Airlines
Thu, 27 Aug - Wed, 9 Sep
Multiple Airlines Logo
13:15 - 20:22
DUB
-
STL
13h 07m
1 stop
Multiple Airlines Logo
14:40 - 07:45
STL
-
DUB
35h 05m
2 stops
€914Multiple Airlines
Sat, 5 Sep - Sat, 19 Sep
American Airlines Logo
11:30 - 21:08
DUB
-
STL
15h 38m
2 stops
American Airlines Logo
10:47 - 08:30
STL
-
DUB
15h 43m
1 stop
€917American Airlines
Wed, 2 Dec - Sun, 6 Dec
American Airlines Logo
11:30 - 10:51
DUB
-
STL
29h 21m
2 stops
American Airlines Logo
06:00 - 08:30
STL
-
DUB
20h 30m
1 stop
€919American Airlines
Wed, 2 Dec - Sun, 6 Dec
American Airlines Logo
11:30 - 10:17
DUB
-
STL
28h 47m
1 stop
American Airlines Logo
06:00 - 08:30
STL
-
DUB
20h 30m
1 stop
€920American Airlines
Wed, 2 Dec - Sun, 6 Dec

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 24 July 2026.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 30/8

19:05-23:58

2 stops34h 53m

Lambert-St Louis

Mon 14/9

14:30-18:20

2 stops21h 50m

€708

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sun 30/8

07:05-15:28

2 stops38h 23m

Lambert-St Louis

Mon 14/9

15:30-11:40

1 stop14h 10m

€817

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 5/9

09:40-20:42

2 stops17h 02m

Lambert-St Louis

Sat 19/9

10:29-09:20

2 stops16h 51m

€844

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 27/8

09:40-22:59

3 stops19h 19m

Lambert-St Louis

Wed 9/9

12:10-07:45

1 stop13h 35m

€861
Fastest return journey

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 23/9

13:35-23:38

1 stop16h 03m

Lambert-St Louis

Sat 3/10

17:36-09:45

1 stop10h 09m

€862

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 27/8

09:30-00:14

1 stop20h 44m

Lambert-St Louis

Wed 9/9

21:35-19:30

1 stop15h 55m

€903

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 5/9

13:15-20:22

1 stop13h 07m

Lambert-St Louis

Sat 19/9

14:40-07:45

2 stops35h 05m

€914

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 2/12

11:30-21:08

2 stops15h 38m

Lambert-St Louis

Sun 6/12

10:47-08:30

1 stop15h 43m

€917

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 2/12

11:30-10:51

2 stops29h 21m

Lambert-St Louis

Sun 6/12

06:00-08:30

1 stop20h 30m

€919

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 2/12

11:30-10:17

1 stop28h 47m

Lambert-St Louis

Sun 6/12

06:00-08:30

1 stop20h 30m

€920

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to St. Louis from

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 April. Flight prices, which tend to average around €860, are often lower during this time because this is during the off-season. The month of September is another great option to travel to St. Louis, with average flight prices from Ireland averaging around €862.

Cheapest flights to Lambert-St Louis

Find the cheapest flights to Lambert-St Louis from your nearest city or airport
Find flights from Dublin to St. Louis
CHEAPEST MONTH TO FLY TO ST. LOUIS FROM DUBLINApril7% cheaperFlying from Dublin to St. Louis costs on average just €860 in April
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM DUBLINJuly41% more expensiveIt costs about €1,293 for flights to St. Louis from Dublin in July
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM DUBLINSeptember340% more users visitedMore momondo users searched in flights to St. Louis from Dublin in September than any other month

Cheap St. Louis flight deals and tips

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

Best One-Way Price

€338

Best Round-Trip Price

€708

Fastest flight time

56h 50m

Popular in

July
The best one-way flight price to St. Louis from Ireland in the last 5 days is €338 (Dublin to Lambert-St Louis).
Search Deals
The best return flight price to St. Louis from Ireland in the last 5 days is €708 (Dublin to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Ireland takes 56h 50m (Dublin to Lambert-St Louis).
Search Deals
July has the highest demand for flights to St. Louis, with a 12% price increase on average.
Search Deals

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 13h 26m 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 1 as of July 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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Popular Flights to St. Louis

Popular routes according to searches in the past day on momondo
Dublin to Lambert-St Louis Flightsfrom €770