STL

€376 Find Cheap Flights to St. Louis – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
€611
Typical prices: €924-€1,142
Delta
Wed 5/12Fri 28/12
DUB - STL • 1 stop
Cheapest one-way flight
€376
Typical prices: €673-€869
Delta
Wed 21/2
DUB - STL • 2 stops
Top airlines
Aer Lingus
Best reviews • 7.3 score
Airline reviews
Airline reviews
When to travel
January
Cheapest • 19% price drop
January
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to St. Louis!
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Booking Insights
Flight Deals

Cheap Flights to St. Louis

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to St. Louis

Sat, 5 Dec - Mon, 28 Dec
Delta Logo
09:55 - 20:09Dublin  Dublin-St. Louis Lambert-St Louis
16h 14m1 stop Atlanta Hartsfield-Jackson
Delta Logo
15:48 - 07:45St. Louis  Lambert-St Louis-Dublin Dublin
9h 57m1 stop Atlanta Hartsfield-Jackson
€611Delta
3+ days ago
Thu, 26 Nov - Wed, 9 Dec
Delta Logo
08:50 - 19:31Dublin  Dublin-St. Louis Lambert-St Louis
16h 41m2 stops Amsterdam Schiphol Minneapolis St Paul
Delta Logo
12:31 - 09:00St. Louis  Lambert-St Louis-Dublin Dublin
14h 29m2 stops Minneapolis St Paul Paris Charles de Gaulle
€628Delta
19 hours ago
Mon, 7 Dec - Mon, 14 Dec
Delta Logo
05:45 - 00:05Dublin  Dublin-St. Louis Lambert-St Louis
24h 20m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
Delta Logo
18:05 - 18:25St. Louis  Lambert-St Louis-Dublin Dublin
18h 20m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle
€629Delta
1 day ago
Thu, 26 Nov - Wed, 9 Dec
Delta Logo
05:45 - 19:31Dublin  Dublin-St. Louis Lambert-St Louis
19h 46m2 stops Amsterdam Schiphol Minneapolis St Paul
Delta Logo
14:33 - 07:45St. Louis  Lambert-St Louis-Dublin Dublin
11h 12m1 stop Atlanta Hartsfield-Jackson
€630Delta
19 hours ago
Thu, 17 Dec - Tue, 5 Jan
Iberia Logo
11:30 - 22:42Dublin  Dublin-St. Louis Lambert-St Louis
17h 12m1 stop Philadelphia
Iberia Logo
12:33 - 09:10St. Louis  Lambert-St Louis-Dublin Dublin
14h 37m1 stop Philadelphia
€634Iberia
1 day ago
Mon, 7 Dec - Mon, 14 Dec
Delta Logo
09:55 - 16:30Dublin  Dublin-St. Louis Lambert-St Louis
12h 35m1 stop Minneapolis St Paul
Delta Logo
07:03 - 07:45St. Louis  Lambert-St Louis-Dublin Dublin
18h 42m1 stop Atlanta Hartsfield-Jackson
€636Delta
1 day ago
Sun, 20 Dec - Wed, 13 Jan
Iberia Logo
11:30 - 23:25Dublin  Dublin-St. Louis Lambert-St Louis
17h 55m1 stop Philadelphia
Iberia Logo
12:55 - 09:10St. Louis  Lambert-St Louis-Dublin Dublin
14h 15m1 stop Philadelphia
€638Iberia
3+ days ago
Thu, 10 Dec - Wed, 23 Dec
Delta Logo
09:40 - 16:30Dublin  Dublin-St. Louis Lambert-St Louis
12h 50m1 stop Minneapolis St Paul
Delta Logo
15:48 - 07:45St. Louis  Lambert-St Louis-Dublin Dublin
9h 57m1 stop Atlanta Hartsfield-Jackson
€646Delta
3+ days ago
Sun, 20 Dec - Wed, 13 Jan
American Airlines Logo
11:30 - 23:25Dublin  Dublin-St. Louis Lambert-St Louis
17h 55m1 stop Philadelphia
American Airlines Logo
13:12 - 09:10St. Louis  Lambert-St Louis-Dublin Dublin
13h 58m2 stops Boston Logan Intl Philadelphia
€651American Airlines
3+ days ago
Wed, 27 Jan - Sun, 31 Jan
American Airlines Logo
11:30 - 21:49Dublin  Dublin-St. Louis Lambert-St Louis
16h 19m2 stops Philadelphia Charlotte Douglas
American Airlines Logo
11:22 - 09:10St. Louis  Lambert-St Louis-Dublin Dublin
15h 48m2 stops Dallas/Fort Worth Philadelphia
€655American Airlines
3+ days ago
Booking Insights

Price, demand, and travel trends for flights to St. Louis

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What is the cheapest flight to St. Louis?

Dublin to St. Louis is the cheapest route at €611 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to St. Louis?

On average, a return flight from Ireland to St. Louis costs €1,072, based on KAYAK data over the past 12 months. Return fares from Dublin average €1,077.

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

Tuesday is the cheapest day to fly to St. Louis at €865 return on average over the past 12 months on KAYAK. Sunday is the most expensive at €1,192.

What is the cheapest time of day to fly to St. Louis?

Afternoon flights to St. Louis are the cheapest at €946 return on average. Morning flights are the most expensive at €1,066.

Find deals

Key details for flights to St. Louis

Low season

October

Cheapest flight

€376
Beat the crowds with an average 68% drop in travellers.
The most popular month to fly with an average 18% increase in travellers.
One-way flight from Dublin to St. Louis

When to book flights to St. Louis

Are your dates flexible? Find out the best times to travel to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to St. Louis, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How do I know if a flight to St. Louis is a good deal?

    A good deal on a flight to St. Louis is around €924 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • How far is Lambert-St Louis from St. Louis city centre?

    Lambert-St Louis is 21.1 km from St. Louis city centre.

  • What is the difference between the most popular and the most frequent airline at St. Louis?

    Aer Lingus operates the most flights from Ireland to St. Louis at 0 per week, and for this route Aer Lingus is also the airline most often selected by KAYAK users searching for flights from Ireland to St. Louis. The two are sometimes different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

Your guide to booking St. Louis flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to St. Louis, a good return fare is around €924. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to St. Louis in January. Return fares historically average €865, making January the cheapest month to travel based on KAYAK data from the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to midday to save up to €120 on a return flight. Midday flights to St. Louis average €946 compared to €1,066 for morning flights.
  • Once you arrive in St. Louis, a great place to start is America's Center Convention Complex. It is popular with first-time visitors and can give you a good feel for the area.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Wentzville

More options for your flight to St. Louis