Cheap Flights to St. Louis County

View NZ$247 flight on Wed, 3 June 2026Opens in a new window

Popular airlines to St. Louis County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Frontier Airlines

  • Alaska Airlines

  • Air Canada

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheapest Flights to St. Louis County

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Thu, 12 Mar - Tue, 24 Mar
ONT
Ontario
STL
St. Louis
NZ$460 Return, found 3 days ago
NZ$460
Return
found 3 days ago
Select Hawaiian Airlines flight, departing Thu, 12 Mar from Ontario to St. Louis, returning Tue, 24 Mar, priced at NZ$460 found 3 days ago
Delta
Wed, 22 Apr - Tue, 5 May
ONT
Ontario
STL
St. Louis
NZ$464 Return, found 1 day ago
NZ$464
Return
found 1 day ago
Select Delta flight, departing Wed, 22 Apr from Ontario to St. Louis, returning Tue, 5 May, priced at NZ$464 found 1 day ago
Delta
Fri, 6 Mar - Tue, 24 Mar
ONT
Ontario
STL
St. Louis
NZ$477 Return, found 3 days ago
NZ$477
Return
found 3 days ago
Select Delta flight, departing Fri, 6 Mar from Ontario to St. Louis, returning Tue, 24 Mar, priced at NZ$477 found 3 days ago
American Airlines
Thu, 26 Mar - Thu, 2 Apr
DCA
Washington
STL
St. Louis
NZ$505 Return, found 1 day ago
NZ$505
Return
found 1 day ago
Select American Airlines flight, departing Thu, 26 Mar from Washington to St. Louis, returning Thu, 2 Apr, priced at NZ$505 found 1 day ago
Delta
Wed, 22 Apr - Thu, 7 May
ONT
Ontario
STL
St. Louis
NZ$519 Return, found 1 day ago
NZ$519
Return
found 1 day ago
Select Delta flight, departing Wed, 22 Apr from Ontario to St. Louis, returning Thu, 7 May, priced at NZ$519 found 1 day ago
American Airlines
Thu, 26 Mar - Thu, 2 Apr
DCA
Washington
STL
St. Louis
NZ$521 Return, found 1 day ago
NZ$521
Return
found 1 day ago
Select American Airlines flight, departing Thu, 26 Mar from Washington to St. Louis, returning Thu, 2 Apr, priced at NZ$521 found 1 day ago
American Airlines
Tue, 17 Mar - Wed, 25 Mar
LAX
Los Angeles
STL
St. Louis
NZ$524 Return, found 1 day ago
NZ$524
Return
found 1 day ago
Select American Airlines flight, departing Tue, 17 Mar from Los Angeles to St. Louis, returning Wed, 25 Mar, priced at NZ$524 found 1 day ago
Delta
Thu, 12 Mar - Fri, 27 Mar
ONT
Ontario
STL
St. Louis
NZ$532 Return, found 3 days ago
NZ$532
Return
found 3 days ago
Select Delta flight, departing Thu, 12 Mar from Ontario to St. Louis, returning Fri, 27 Mar, priced at NZ$532 found 3 days ago
Alaska Airlines
Fri, 15 May - Sat, 30 May
LAX
Los Angeles
STL
St. Louis
NZ$566 Return, found 3 days ago
NZ$566
Return
found 3 days ago
Select Alaska Airlines flight, departing Fri, 15 May from Los Angeles to St. Louis, returning Sat, 30 May, priced at NZ$566 found 3 days ago
United
Tue, 17 Mar - Wed, 25 Mar
LAX
Los Angeles
STL
St. Louis
NZ$708 Return, found 1 day ago
NZ$708
Return
found 1 day ago
Select United flight, departing Tue, 17 Mar from Los Angeles to St. Louis, returning Wed, 25 Mar, priced at NZ$708 found 1 day ago

St. Louis County Flights

There is no better time to steal away to St. Louis County than right now, and Expedia.co.nz knows just how to get you there without breaking your budget. You can find cheap flights to St. Louis County right here on Expedia.co.nz, and comparing itineraries couldn't be easier. Whether you are early bird flyer or want to catch St. Louis County flights on the red-eye schedule, Expedia.co.nz can show you all the available flights at the best price. From domestic flights to international journeys, the flight you need can be found and booked right here with us.

Once you have your cheap tickets to St. Louis County in hand, holiday planning can move forward full steam ahead. Unleash the potential of your holiday with a car rental, which makes it possible to explore St. Louis County without relying on public transportation or trekking far and wide on foot.

If you're in the market for adventure, book one of the Expedia holiday packages. Our packages save you money and time by bundling hotels and flights. What are you waiting for? Your next holiday in St. Louis County starts right here!

St. Louis County Flights Information

Airlines serving
American Airlines, Delta, Alaska Airlines, United, Hawaiian Airlines, Qantas Airways
Roundtrip price
from NZ$460

Frequently asked questions

How do I find cheap flights to St. Louis County that have flexible change policies?
When it comes to travelling these days, flexibility is key. That's why we have a "No change fee" search function to help you track down cheap and flexible flights to St. Louis County. It's near the top left of your screen directly underneath the "Flexible change policies" heading.
Which airlines fly to St. Louis County?
When you're ready to lock in your seat to or near St. Louis County, these leading airlines are waiting to welcome you aboard:

  • Southwest Airlines - 2 214 flights to or near St. Louis County each month, including 2 214 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • American Airlines - 789 flights to or near St. Louis County each month, including 789 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • Delta Air Lines - 650 flights to or near St. Louis County each month, including 650 flights to Lambert-St. Louis Intl. Airport (STL) per month.

How can I find cheap tickets to St. Louis County?
An excellent strategy for scoring cheap fares is to be flexible with your travel dates. Begin with searching for your flight to St. Louis County, then click on the "flexible dates" box to see prices for nearby days. Want another good tip? Book ahead of time. To give you an idea of costs, NZ$460 was the best price for a flight to St. Louis County in the last seven days.
How much is a flight to St. Louis County?
There were plenty of budget-friendly fares up for grabs in the last seven days, with the price of a return ticket to St. Louis County ranging between NZ$460 and NZ$1,660. Many lucky holiday makers nabbed one-way flights from Washington (DCA) for as low as NZ$247.
What are the most popular airports to fly into in St. Louis County?
The principal gateway to St. Louis County, around 4 902 flights taxi into Lambert-St. Louis Intl. Airport (STL) each month. Search for an amazing deal, lock in your fare and get set to explore this fantastic region.
When is the cheapest time to fly to St. Louis County?
Leave for St. Louis County earlier in the week and you'll usually be rewarded with lower-priced fares. Tuesday is generally the cheapest day to jump on a plane, with Monday a close second. If you'd like to avoid the most expensive flights, stay away from Saturdays.
How much is a plane ticket to St. Louis County?
In the last seven days, flights to St. Louis County cost between NZ$460 and NZ$1,660. Prices depend on a number of things, particularly the departure time, airline, cabin class and how early you make your booking.
What months are the cheapest to book a flight to St. Louis County?
Reserve your ticket in February to enjoy the lowest-priced flights to St. Louis County. The festive month of December is usually the most expensive time to purchase an airfare.

Trending flights to St. Louis County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, 24 Mar - Sat, 16 May
AKL
Auckland
STL
St. Louis
NZ$1,660 Return, found 12 hours ago
NZ$1,660
Return
found 12 hours ago
Select American Airlines flight, departing Tue, 24 Mar from Auckland to St. Louis, returning Sat, 16 May, priced at NZ$1,660 found 12 hours ago
*Available to Expedia members.