Latest deals
When to book
FAQs
Price Alerts
Flights to Lambert-St Louis

€469 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 30/8. 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

Discover deals from 900+ travel sites with momondo.

Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ireland to St. Louis

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
09:40 - 19:30
DUB
-
STL
15h 50m
1 stop
Aer Lingus Logo
21:35 - 14:50
STL
-
DUB
11h 15m
1 stop
€705Aer Lingus
Wed, 22 Apr - Wed, 29 Apr
American Airlines Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
American Airlines Logo
16:30 - 11:50
STL
-
DUB
13h 20m
1 stop
€714American Airlines
Tue, 5 May - Mon, 11 May
American Airlines Logo
12:40 - 19:31
DUB
-
STL
12h 51m
1 stop
American Airlines Logo
15:38 - 09:45
STL
-
DUB
12h 07m
1 stop
€731American Airlines
Wed, 6 May - Sun, 10 May
Aer Lingus Logo
08:40 - 19:30
DUB
-
STL
16h 50m
1 stop
Aer Lingus Logo
21:35 - 14:50
STL
-
DUB
11h 15m
1 stop
€736Aer Lingus
Wed, 22 Apr - Wed, 29 Apr
Aer Lingus Logo
12:00 - 19:30
DUB
-
STL
13h 30m
1 stop
Aer Lingus Logo
21:35 - 15:45
STL
-
DUB
12h 10m
1 stop
€748Aer Lingus
Tue, 21 Apr - Tue, 28 Apr
American Airlines Logo
12:40 - 22:59
DUB
-
STL
16h 19m
1 stop
American Airlines Logo
16:30 - 11:50
STL
-
DUB
13h 20m
1 stop
€749American Airlines
Fri, 8 May - Wed, 13 May
American Airlines Logo
09:30 - 17:21
DUB
-
STL
13h 51m
1 stop
American Airlines Logo
13:29 - 06:30
STL
-
DUB
11h 01m
1 stop
€753American Airlines
Mon, 4 May - Mon, 11 May
American Airlines Logo
09:30 - 16:41
DUB
-
STL
13h 11m
1 stop
American Airlines Logo
17:21 - 11:50
STL
-
DUB
12h 29m
1 stop
€781American Airlines
Fri, 8 May - Sat, 9 May
American Airlines Logo
09:30 - 19:30
DUB
-
STL
16h 00m
1 stop
American Airlines Logo
13:16 - 06:30
STL
-
DUB
11h 14m
1 stop
€787American Airlines
Thu, 7 May - Sat, 9 May
United Airlines Logo
11:35 - 16:39
DUB
-
STL
11h 04m
1 stop
United Airlines Logo
17:28 - 09:45
STL
-
DUB
10h 17m
1 stop
€791United Airlines
Sat, 9 May - Sun, 10 May

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 10 March 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

Wed 22/4

09:40-19:30

1 stop15h 50m

Lambert-St Louis

Wed 29/4

21:35-14:50

1 stop11h 15m

€705

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 5/5

09:30-19:30

1 stop16h 00m

Lambert-St Louis

Mon 11/5

16:30-11:50

1 stop13h 20m

€714

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 6/5

12:40-19:31

1 stop12h 51m

Lambert-St Louis

Sun 10/5

15:38-09:45

1 stop12h 07m

€731

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Wed 22/4

08:40-19:30

1 stop16h 50m

Lambert-St Louis

Wed 29/4

21:35-14:50

1 stop11h 15m

€736

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Tue 21/4

12:00-19:30

1 stop13h 30m

Lambert-St Louis

Tue 28/4

21:35-15:45

1 stop12h 10m

€748

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 8/5

12:40-22:59

1 stop16h 19m

Lambert-St Louis

Wed 13/5

16:30-11:50

1 stop13h 20m

€749

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Mon 4/5

09:30-17:21

1 stop13h 51m

Lambert-St Louis

Mon 11/5

13:29-06:30

1 stop11h 01m

€753

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Fri 8/5

09:30-16:41

1 stop13h 11m

Lambert-St Louis

Sat 9/5

17:21-11:50

1 stop12h 29m

€781

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Thu 7/5

09:30-19:30

1 stop16h 00m

Lambert-St Louis

Sat 9/5

13:16-06:30

1 stop11h 14m

€787
Fastest return journey

DublinSt. Louis

DUB - STL

DUBSTL

Dublin

Sat 9/5

11:35-16:39

1 stop11h 04m

Lambert-St Louis

Sun 10/5

17:28-09:45

1 stop10h 17m

€791

Flights are sorted by cheapest return flights first.

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

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

€469

Best Round-Trip Price

€705

Fastest flight time

54h 37m

Popular in

January
The best one-way flight price to St. Louis from Ireland in the last 72 hours is €469 (Dublin to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from Ireland in the last 72 hours is €705 (Dublin to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Ireland takes 54h 37m (Dublin to Lambert-St Louis).
Search Deals
January has the highest demand for flights to St. Louis, with a 4% price increase on average.
Search Deals

Frequently asked questions about flying to St. Louis

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 €710, 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 €775.

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 12h 19m 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 March 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.

An easier way to manage your Lambert-St Louis trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 9/4
Thu 16/4
By creating a price alert you accept our terms of use and privacy policy.

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 €826