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$1,894+ Cheap flights from St. Louis (STL) to Cairns (CNS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CNS
mar 31 — abr 71
seg 3/31
seg 4/7
1 adult, Economy
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Cheap flight deals from St. Louis to Cairns

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Cairns (CNS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated março 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,894
(Gurufare)
Provider with most accurate pricing for Lambert-St Louis-Cairns flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Cairns flights.
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From Lambert-St Louis to Cairns
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Cheapest flights from St. Louis to Cairns
Explore the most affordable flight options available from St. Louis to Cairns. Find the lowest fares from popular airlines and budget airlines, with prices last updated on março 26, 2025.

This Gurufare deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/96:52 amSTL - CNS
2 stops37h 23mMultiple Airlines
sex 5/169:30 pmCNS - STL
2 stops40h 34mMultiple Airlines
Deal found 3/24$1,894
This Jetabroad deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/96:52 amSTL - CNS
2 stops42h 48mQantas Airways
sex 5/162:25 pmCNS - STL
3 stops47h 39mQantas Airways
Deal found 3/24$2,073
This Booking.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 4/254:45 pmSTL - CNS
3 stops29h 25mAir Canada
qui 5/17:15 pmCNS - STL
3 stops39h 28mAir Canada
Deal found 3/24$2,937

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Cairns that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated março 26, 2025.
Use the filters below to find and compare flights from St. Louis to Cairns that are best for you.

Fly from

St. Louis

Fly to

Cairns

Route

Depart

Return

Price

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

sex 5/9

6:52 am-11:15 am

2 stops37h 23m

Cairns

sex 5/16

9:30 pm-11:04 pm

2 stops40h 34m

$1,894

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

sex 5/9

6:52 am-4:40 pm

2 stops42h 48m

Cairns

sex 5/16

2:25 pm-11:04 pm

3 stops47h 39m

$2,073

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

sex 4/25

4:45 pm-1:10 pm

3 stops29h 25m

Cairns

qui 5/1

7:15 pm-7:43 pm

3 stops39h 28m

$2,937

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

  • Most accurate provider: When it comes to deals on St. Louis-Cairns flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Cairns flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Cairns flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Cairns flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Cairns flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Cairns

Have a flexible travel schedule? Discover the best time to fly to Cairns from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

Rainfall in Cairns by month

Plan your trip to Cairns by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Cairns ranges from 0.8 - 16.9 inches per month. March is typically the wettest month, when rainfall can reach 16.9 in. July is typically the driest time to visit Cairns when rainfall is around 0.8 in.

Temperature in Cairns by month

Plan your trip to Cairns by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Cairns, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Cairns

Get insights into the airlines that provide service to Cairns. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cairns. Reviews last updated março 26, 2025.
Qantas Airways
7.5
Good
811 reviews

Comfort

7.4

Food

6.9

Overall

7.5

Entertainment

7.1

Boarding

7.6

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Tin,Feb 2025

LAX - MEL

The passengers had to wait in lines more than 40 minutes for boarding. The foods was okay to eat if you were hungry to dead . Thank you
Qantas Airways
7.5
Good
811 reviews
Qantas Airways
7.5
Good
811 reviews

Comfort

7.4

Food

6.9

Overall

7.5

Entertainment

7.1

Boarding

7.6

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Tin,Feb 2025

LAX - MEL

The passengers had to wait in lines more than 40 minutes for boarding. The foods was okay to eat if you were hungry to dead . Thank you
Air Canada
7.0
Good
8,960 reviews
Qantas Airways
7.5
Good
811 reviews

Comfort

7.4

Food

6.9

Overall

7.5

Entertainment

7.1

Boarding

7.6

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Tin,Feb 2025

LAX - MEL

The passengers had to wait in lines more than 40 minutes for boarding. The foods was okay to eat if you were hungry to dead . Thank you

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Cairns. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from St. Louis to Cairns round-trip?

    Cheapflights users have booked flights from St. Louis to Cairns round-trip from $2,073. Another airline that can offer you cheap pricing is Air Canada.

  • Can I find deals for flights from St. Louis to Cairns that include hotel bookings?

    Yes. In addition to deals on St. Louis to Cairns flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Cairns?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Cairns.

  • Can I find deals for business class flights from St. Louis to Cairns?

    Yes. Cheapflights offers flight deals from St. Louis to Cairns by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Cairns (average of $1,134). Flying from St. Louis to Cairns in December is currently the most expensive (average of $2,397). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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