How do I get Price Alerts for flights from St. Louis to Cairns?

Confirm your travel details to search for the latest offers for flights from St. Louis to Cairns . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from St. Louis to Cairns with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

When did momondo last update prices for flights from Lambert-St Louis Airport to Cairns Airport?

Prices for flights from Lambert-St Louis Airport to Cairns Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Lambert-St Louis Airport to Cairns Airport?

As of October 2025, there is 1 operator available to choose from for flights from Lambert-St Louis Airport to Cairns Airport.

How old do you have to be to fly from Lambert-St Louis Airport to Cairns Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Cairns Airport.

What documentation or ID do you need to fly to Cairns Airport?

The travel and health documents required for your trip to Cairns Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cairns Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$1,565 Cheap Flights from St. Louis to Cairns in 2025/26

1 adult

0 bags

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Find the cheapest flights from St. Louis to Cairns

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:13 pm - 11:35 amSTL-CNS

25h 22m2 stops

12:35 pm - 11:42 pmCNS-STL

27h 07m2 stops

$1,565Fiji Airways

Find Deal

Thu, Nov 13 - Mon, Nov 17

6:13 pm - 11:35 amSTL-CNS

25h 22m2 stops

12:35 pm - 11:42 pmCNS-STL

27h 07m2 stops

$1,567Fiji Airways

Find Deal

Thu, Nov 13 - Mon, Nov 17

6:13 pm - 11:35 amSTL-CNS

25h 22m2 stops

12:35 pm - 11:42 pmCNS-STL

27h 07m2 stops

$1,650Fiji Airways

Find Deal

Thu, Nov 13 - Mon, Nov 17

4:05 pm - 2:55 pmSTL-CNS

54h 50m3 stops

5:35 pm - 3:29 pmCNS-STL

61h 54m3 stops

$2,792Air Canada

Find Deal

Thu, Nov 13 - Mon, Nov 17

4:05 pm - 2:55 pmSTL-CNS

54h 50m3 stops

5:35 pm - 3:29 pmCNS-STL

61h 54m3 stops

$3,053Air Canada

Find Deal

Thu, Nov 13 - Mon, Nov 17

Air Canada flights from St. Louis to Cairns

Our best Air Canada deals on St. Louis to Cairns flight tickets

Air Canada

Nov 13

STL4:05 pmLambert-St Louis

54h 50m

3 stops

CNS2:55 pmCairns

Nov 17

CNS5:35 pmCairns

61h 54m

3 stops

STL3:29 pmLambert-St Louis

$2,792

Find similar

Air Canada

Nov 13

STL4:05 pmLambert-St Louis

54h 50m

3 stops

CNS2:55 pmCairns

Nov 17

CNS5:35 pmCairns

61h 54m

3 stops

STL3:29 pmLambert-St Louis

$3,053

Find similar

Fiji Airways flights from St. Louis to Cairns

Our best Fiji Airways deals on St. Louis to Cairns flight tickets

Fiji Airways

Nov 13

STL6:13 pmLambert-St Louis

25h 22m

2 stops

CNS11:35 amCairns

Nov 17

CNS12:35 pmCairns

27h 07m

2 stops

STL11:42 pmLambert-St Louis

$1,565

Find similar

Fiji Airways

Nov 13

STL6:13 pmLambert-St Louis

25h 22m

2 stops

CNS11:35 amCairns

Nov 17

CNS12:35 pmCairns

27h 07m

2 stops

STL11:42 pmLambert-St Louis

$1,567

Find similar

Fiji Airways

Nov 13

STL6:13 pmLambert-St Louis

25h 22m

2 stops

CNS11:35 amCairns

Nov 17

CNS12:35 pmCairns

27h 07m

2 stops

STL11:42 pmLambert-St Louis

$1,650

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 11/13

6:13 pm-11:35 am

2 stops25h 22m

Cairns

Mon 11/17

12:35 pm-11:42 pm

2 stops27h 07m

$1,565

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 11/13

6:13 pm-11:35 am

2 stops25h 22m

Cairns

Mon 11/17

12:35 pm-11:42 pm

2 stops27h 07m

$1,567

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 11/13

6:13 pm-11:35 am

2 stops25h 22m

Cairns

Mon 11/17

12:35 pm-11:42 pm

2 stops27h 07m

$1,650

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 11/13

4:05 pm-2:55 pm

3 stops54h 50m

Cairns

Mon 11/17

5:35 pm-3:29 pm

3 stops61h 54m

$2,792

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 11/13

4:05 pm-2:55 pm

3 stops54h 50m

Cairns

Mon 11/17

5:35 pm-3:29 pm

3 stops61h 54m

$3,053

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from St. Louis to Cairns

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Cairns according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Cairns (STL to CNS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Cairns

Direct flights	None

There are no direct flights from St. Louis to Cairns. There are no popular flight routes from St. Louis to Cairns.

Search flight deals

How far is Lambert-St Louis to Cairns by plane?
The distance between Lambert-St Louis and Cairns is about 8759.6 mi. Flights usually cover this in 25h 22m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Lambert-St Louis Airport to Cairns Airport?
Prices for flights from Lambert-St Louis Airport to Cairns Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Cairns Airport?
As of October 2025, there is 1 operator available to choose from for flights from Lambert-St Louis Airport to Cairns Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Cairns Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Cairns Airport.
What documentation or ID do you need to fly to Cairns Airport?
The travel and health documents required for your trip to Cairns Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cairns Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Cairns?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Cairns is Fiji Airways, representing 100% of all bookings.

Best airlines flying from St. Louis to Cairns

Compare and see reviews for airlines that fly from St. Louis to Cairns with momondo

Airline	Rating	Free Cancellation	Price
Fiji Airways	PriceFrom $1,265	Free Cancellation	Rating 8.0 205 reviews		Search Fiji Airways flights

How do I get Price Alerts for flights from St. Louis to Cairns?
Confirm your travel details to search for the latest offers for flights from St. Louis to Cairns. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from St. Louis to Cairns with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Port Douglas

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Palm Cove

Trinity Beach

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Cairns?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Cairns. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Cairns with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Cairns flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Cairns?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cairns from St. Louis.

I’m not ready to book a flight from St. Louis to Cairns right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Cairns now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Cairns and let you know when they change.