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STL - CNS

$1,833 Find cheap flights from St. Louis to Cairns

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Cairns departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to Cairns

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Cairns, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Cairns, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from St. Louis to Cairns (STL-CNS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Cairns that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:05 pm - 3:55 pmSTL-CNS
56h 50m3 stops
4:10 pm - 8:00 pmCNS-STL
42h 50m3 stops
$1,833
Find Deal
Sat, Sep 14 - Sat, Sep 21
4:17 pm - 11:00 pmSTL-CNS
39h 43m2 stops
6:55 pm - 11:00 pmCNS-STL
43h 05m2 stops
$1,896Qantas Airways
Find Deal
Sat, Sep 14 - Sat, Sep 21
4:17 pm - 1:35 pmSTL-CNS
30h 18m3 stops
6:55 pm - 11:00 pmCNS-STL
43h 05m2 stops
$1,899Qantas Airways
Find Deal
Sat, Sep 14 - Sat, Sep 21
4:05 pm - 10:50 pmSTL-CNS
63h 45m3 stops
7:15 pm - 8:01 pmCNS-STL
39h 46m3 stops
$1,974
Find Deal
Sat, Jul 6 - Mon, Jul 15
5:30 pm - 11:00 pmSTL-CNS
38h 30m2 stops
3:50 pm - 8:47 pmCNS-STL
43h 57m2 stops
$2,365Qantas Airways
Find Deal
Sat, Jul 6 - Mon, Jul 15
5:30 pm - 12:50 pmSTL-CNS
28h 20m2 stops
2:35 pm - 9:29 amCNS-STL
33h 54m3 stops
$2,708
Find Deal
Sat, Jul 6 - Mon, Jul 15
5:30 pm - 1:55 pmSTL-CNS
29h 25m3 stops
4:10 pm - 11:07 pmCNS-STL
45h 57m4 stops
$4,174Qantas Airways
Find Deal
Sat, Jul 6 - Mon, Jul 15

Good to know

Cheapest flight

$1,833
Flight from St. Louis to Cairns

When to book flights from St. Louis to Cairns

Are your dates flexible? Find out the best times to travel from St. Louis to Cairns based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Cairns

  • What is the cheapest flight from St. Louis to Cairns?

    In the last 3 days, the lowest price for a flight from St. Louis to Cairns was $1,833 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Cairns?

    A passport is required to fly from St. Louis to Cairns.

  • Which airports will I be using when flying from St. Louis to Cairns?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Cairns, also known as Cairns.

  • Which aircraft models fly most regularly from St. Louis to Cairns?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Cairns?

    oneworld is the only airline alliance operating flights between St. Louis and Cairns.

  • How does KAYAK find such low prices on flights from St. Louis to Cairns?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Cairns.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Cairns?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cairns from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Cairns?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cairns with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and CNS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Cairns?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cairns from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

St. Louis - Cairns Flights

Departure:

St. Louis (STL)United States

Destination:

Cairns (CNS)Australia

Cabin classes:

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