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Flights to Lambert-St Louis

€407 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 1/7. 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.
Iberia Logo
09:30 - 21:55
DUB
-
STL
18h 25m
1 stop
Iberia Logo
15:34 - 09:45
STL
-
DUB
12h 11m
1 stop
€838Iberia
Sat, 12 Sep - Sat, 19 Sep
Multiple Airlines Logo
13:45 - 23:44
DUB
-
STL
15h 59m
2 stops
Multiple Airlines Logo
11:18 - 06:30
STL
-
DUB
13h 12m
1 stop
€849Multiple Airlines
Wed, 24 Jun - Sat, 18 Jul
Iberia Logo
13:45 - 23:59
DUB
-
STL
16h 14m
1 stop
Iberia Logo
17:19 - 11:50
STL
-
DUB
12h 31m
1 stop
€850Iberia
Wed, 24 Jun - Sat, 18 Jul
American Airlines Logo
09:30 - 18:04
DUB
-
STL
14h 34m
2 stops
American Airlines Logo
08:43 - 09:35
STL
-
DUB
18h 52m
1 stop
€867American Airlines
Sat, 12 Sep - Sat, 19 Sep
Multiple Airlines Logo
09:40 - 20:31
DUB
-
STL
16h 51m
2 stops
Multiple Airlines Logo
12:59 - 09:55
STL
-
DUB
14h 56m
2 stops
€868Multiple Airlines
Sat, 12 Sep - Sat, 19 Sep
Multiple Airlines Logo
09:40 - 20:39
DUB
-
STL
16h 59m
2 stops
Multiple Airlines Logo
19:05 - 16:50
STL
-
DUB
15h 45m
2 stops
€901Multiple Airlines
Wed, 24 Jun - Sat, 18 Jul
Iberia Logo
09:30 - 18:57
DUB
-
STL
15h 27m
1 stop
Iberia Logo
20:07 - 11:50
STL
-
DUB
9h 43m
1 stop
€953Iberia
Sat, 15 Aug - Fri, 4 Sep
Iberia Logo
09:30 - 19:18
DUB
-
STL
15h 48m
1 stop
Iberia Logo
19:56 - 11:50
STL
-
DUB
9h 54m
1 stop
€954Iberia
Mon, 13 Jul - Mon, 27 Jul
Iberia Logo
13:45 - 23:34
DUB
-
STL
15h 49m
1 stop
Iberia Logo
20:07 - 11:50
STL
-
DUB
9h 43m
1 stop
€955Iberia
Sat, 15 Aug - Fri, 4 Sep
Iberia Logo
12:40 - 23:42
DUB
-
STL
17h 02m
1 stop
Iberia Logo
20:07 - 11:50
STL
-
DUB
9h 43m
1 stop
€957Iberia
Sat, 15 Aug - Fri, 4 Sep

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 11 June 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

Sat 12/9

09:30-21:55

1 stop18h 25m

Lambert-St Louis

Sat 19/9

15:34-09:45

1 stop12h 11m

€838

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 24/6

13:45-23:44

2 stops15h 59m

Lambert-St Louis

Sat 18/7

11:18-06:30

1 stop13h 12m

€849

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 24/6

13:45-23:59

1 stop16h 14m

Lambert-St Louis

Sat 18/7

17:19-11:50

1 stop12h 31m

€850

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 12/9

09:30-18:04

2 stops14h 34m

Lambert-St Louis

Sat 19/9

08:43-09:35

1 stop18h 52m

€867

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 12/9

09:40-20:31

2 stops16h 51m

Lambert-St Louis

Sat 19/9

12:59-09:55

2 stops14h 56m

€868

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 24/6

09:40-20:39

2 stops16h 59m

Lambert-St Louis

Sat 18/7

19:05-16:50

2 stops15h 45m

€901
Fastest return journey

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 15/8

09:30-18:57

1 stop15h 27m

Lambert-St Louis

Fri 4/9

20:07-11:50

1 stop9h 43m

€953

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 13/7

09:30-19:18

1 stop15h 48m

Lambert-St Louis

Mon 27/7

19:56-11:50

1 stop9h 54m

€954

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 15/8

13:45-23:34

1 stop15h 49m

Lambert-St Louis

Fri 4/9

20:07-11:50

1 stop9h 43m

€955

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 15/8

12:40-23:42

1 stop17h 02m

Lambert-St Louis

Fri 4/9

20:07-11:50

1 stop9h 43m

€957

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 September. Flight prices, which tend to average around €835, are often lower during this time because this is during the off-season. The month of April is another great option to travel to St. Louis, with average flight prices from Ireland averaging around €848.

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 DUBLINSeptember4% cheaperFlying from Dublin to St. Louis costs on average just €835 in September
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM DUBLINAugust25% more expensiveIt costs about €1,087 for flights to St. Louis from Dublin in August
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM DUBLINSeptember420% 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

€407

Best Round-Trip Price

€838

Fastest flight time

17h 06m

Popular in

August
The best one-way flight price to St. Louis from Ireland in the last 5 days is €407 (Dublin to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from Ireland in the last 5 days is €838 (Dublin to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Ireland takes 17h 06m (Dublin to Lambert-St Louis).
Search Deals
August has the highest demand for flights to St. Louis, with a 2% 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 20h 44m 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 June 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 €1,274