STL - CNS

$1,489 Find Cheap Flights from St. Louis to Cairns - Compare and Save

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 8/8. 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
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,489
Multiple Airlines
Sat 8/8Sat 8/15
STL - CNS • 2 stops
Top airlines
Qantas Airways
Cheapest • from $1,726 (round-trip)
Fiji Airways
Best reviews • 8.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Cairns. You'll need at least 2 connections.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Cairns

Sat, Aug 8 - Sat, Aug 15
Multiple Airlines Logo
7:23 pm - 8:50 pm
STL
-
CNS
34h 27m
2 stops
Multiple Airlines Logo
1:55 pm - 5:59 pm
CNS
-
STL
43h 04m
2 stops
$1,489Multiple Airlines
Fri, Aug 7 - Thu, Aug 13
Multiple Airlines Logo
6:00 am - 1:40 pm
STL
-
CNS
40h 40m
2 stops
Multiple Airlines Logo
7:10 pm - 10:59 pm
CNS
-
STL
42h 49m
2 stops
$1,563Multiple Airlines
Sat, Aug 8 - Sat, Aug 15
Multiple Airlines Logo
7:23 pm - 9:50 am
STL
-
CNS
47h 27m
2 stops
Multiple Airlines Logo
10:30 am - 3:38 pm
CNS
-
STL
68h 08m
3 stops
$1,635Multiple Airlines
Fri, Aug 7 - Thu, Aug 13
Multiple Airlines Logo
6:01 am - 8:40 am
STL
-
CNS
59h 39m
3 stops
Multiple Airlines Logo
7:15 pm - 6:39 pm
CNS
-
STL
38h 24m
2 stops
$1,662Multiple Airlines
Sat, Aug 8 - Sat, Aug 15
Qantas Airways Logo
5:11 pm - 11:50 am
STL
-
CNS
27h 39m
2 stops
Qantas Airways Logo
6:50 am - 4:14 pm
CNS
-
STL
24h 24m
2 stops
$1,726Qantas Airways
Sat, Aug 8 - Sat, Aug 15
Multiple Airlines Logo
6:01 am - 9:50 am
STL
-
CNS
60h 49m
3 stops
Multiple Airlines Logo
10:30 am - 3:38 pm
CNS
-
STL
68h 08m
3 stops
$1,815Multiple Airlines
Wed, Aug 26 - Sun, Aug 30
Multiple Airlines Logo
6:00 am - 12:55 pm
STL
-
CNS
39h 55m
2 stops
Multiple Airlines Logo
6:45 am - 6:05 pm
CNS
-
STL
26h 20m
2 stops
$1,863Multiple Airlines
Fri, Aug 7 - Thu, Aug 13
Multiple Airlines Logo
6:01 am - 8:40 am
STL
-
CNS
59h 39m
3 stops
Multiple Airlines Logo
4:55 pm - 3:31 pm
CNS
-
STL
61h 36m
3 stops
$1,864Multiple Airlines
Tue, Aug 25 - Tue, Sep 1
Multiple Airlines Logo
6:00 am - 9:00 pm
STL
-
CNS
48h 00m
2 stops
Multiple Airlines Logo
6:45 am - 4:41 pm
CNS
-
STL
24h 56m
2 stops
$1,944Multiple Airlines
Sun, Jul 26 - Thu, Jul 30
Qantas Airways Logo
6:37 am - 10:45 pm
STL
-
CNS
49h 08m
2 stops
Qantas Airways Logo
2:40 pm - 11:59 pm
CNS
-
STL
48h 19m
2 stops
$2,195Qantas Airways
Useful Info

KAYAK's insights & trends for St. Louis to Cairns flights

Get data-powered insights and trends into flights from St. Louis to Cairns to help you find the cheapest flights, the best time to fly and much more.

How long does a flight from St. Louis to Cairns take?

Flying between Cairns and St. Louis will take minimum 21h 25m and will require at least one stop.

Find deals

Good to know

Cheapest flight$1,489
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 5 days, the lowest price for a flight from St. Louis to Cairns was $1,489 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.

  • Which airlines provide the cheapest flights from St. Louis to Cairns?

    In the past 5 days, the cheapest round-trip tickets from St. Louis to Cairns were found on Qantas Airways ($1,726) and Air Canada ($2,738).

Reviews of the top airline flying from St. Louis to Cairns

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Cairns. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Cairns? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Fiji AirwaysOverall score based on 246 reviews
8.1Comfort
8.1Boarding
7.5Food
7.5Entertainment
8.6Crew
Airline reviews

The only thing plus on this flight was the crew. They made me feel welcome and took care of me on the flights. The biggest issue is that business class always boards first on all airlines. There needs to be separate doors for business and premium class to enter. I had to wait over 40 minutes for economy to be boarded. I didn’t pay 5000 dollars to wait. The other issue not enough food choices , no sandwiches or snacks in between - what the hell. I would never travel this airline again.

4.0 OkayAnonymous, Jul 2026
LAX - NAN
Read more Fiji Airways reviews

The only thing plus on this flight was the crew. They made me feel welcome and took care of me on the flights. The biggest issue is that business class always boards first on all airlines. There needs to be separate doors for business and premium class to enter. I had to wait over 40 minutes for economy to be boarded. I didn’t pay 5000 dollars to wait. The other issue not enough food choices , no sandwiches or snacks in between - what the hell. I would never travel this airline again.

Roomy seats and crew is pleasant. Vegi food can be a lot better in terms choices. Inflight entertainment needs to have more options especially for 13+ hour flight. Very nice and warm blankets and seats are roomy than other A350 aircraft’s. Swift boarding and crew is pleasant to deal with.

Boarding had poor communication. Passengers didn't get clear directions to prepare for Boarding. The plane was an older model which had some issues with operating the seats (the staff was great). Due to age the seat cushions were compressed and less comfortable than expected.

Fiji Airways always goes above and beyond. If anything I'd say the food was less enjoyable than in the past. But that in no way lessened the experience with the cabin crew or the excellent attentiveness and service they provided throughout the entire trip!

Everything was great . Arrived on time was smooth plane was clean. Crew/Staff was friendly and helpful.

Everything from the staff to the comfort of business class was excellent. This is one of my new favorite airlines.

Ticketing said dinner for the almost 14 hour flight and we were delayed an hour. However, onboard we were only served a sluce if pizza bread and a cookie. Not at all dinner and insufficient for a long international flight. Breakfast was good.

Again, Fijian hospitality was genuine, very comfortable, only improvement would be the entertainment. Why Do they only have 5 episodes of TV shows and from like season three...

They will look to squeeze every penny they can out of you!! Pick your seat$$...bring luggage$$$$... if they could charge you for the air on the plane they would!!

The part that really made for a poor trip was that we checked luggage, and it took 1.5 hrs. to get our luggage. This made it so we barely got to our next flight. We were the last ones on board.

Everything you need to know for your flight from St. Louis to Cairns

Information on your arrival and departure airports

St. Louis (STL)
Cairns (CNS)