Latest deals
When to book
FAQs
Price Alerts

Cheap flights from St. Louis to Cairns from $1,712

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Cairns

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
5:00 pm - 7:15 pmSTL  Lambert-St Louis-CNS Cairns
34h 15m2 stops Dallas/Fort Worth Brisbane
Qantas Airways Logo
9:15 am - 11:36 pmCNS  Cairns-STL Lambert-St Louis
30h 21m2 stops Brisbane Los Angeles
$1,712Qantas Airways
Sat, Feb 6 - Wed, Feb 10
Qantas Airways Logo
5:00 pm - 7:15 pmSTL  Lambert-St Louis-CNS Cairns
34h 15m2 stops Dallas/Fort Worth Brisbane
Qantas Airways Logo
9:15 am - 11:36 pmCNS  Cairns-STL Lambert-St Louis
30h 21m2 stops Brisbane Los Angeles
$1,713Qantas Airways
Sat, Feb 6 - Wed, Feb 10
Qantas Airways Logo
3:36 pm - 2:50 pmSTL  Lambert-St Louis-CNS Cairns
32h 14m2 stops Dallas/Fort Worth Sydney Kingsford Smith
Qantas Airways Logo
6:00 am - 11:59 pmCNS  Cairns-STL Lambert-St Louis
32h 59m2 stops Brisbane Los Angeles
$1,766Qantas Airways
Fri, Apr 9 - Fri, Apr 16
Qantas Airways Logo
3:36 pm - 5:45 pmSTL  Lambert-St Louis-CNS Cairns
35h 09m2 stops Dallas/Fort Worth Sydney Kingsford Smith
Qantas Airways Logo
4:10 pm - 11:59 pmCNS  Cairns-STL Lambert-St Louis
46h 49m2 stops Brisbane Los Angeles
$1,767Qantas Airways
Fri, Apr 9 - Thu, Apr 15
Qantas Airways Logo
6:11 pm - 12:45 pmSTL  Lambert-St Louis-CNS Cairns
27h 34m2 stops Dallas/Fort Worth Sydney Kingsford Smith
Qantas Airways Logo
11:20 am - 11:59 pmCNS  Cairns-STL Lambert-St Louis
51h 39m2 stops Brisbane Los Angeles
$1,771Qantas Airways
Sun, Apr 11 - Sat, Apr 17
Qantas Airways Logo
3:36 pm - 11:50 amSTL  Lambert-St Louis-CNS Cairns
29h 14m2 stops Dallas/Fort Worth Melbourne
Qantas Airways Logo
4:10 pm - 11:59 pmCNS  Cairns-STL Lambert-St Louis
46h 49m2 stops Brisbane Los Angeles
$1,775Qantas Airways
Sat, Apr 10 - Fri, Apr 16
Qantas Airways Logo
3:36 pm - 4:15 pmSTL  Lambert-St Louis-CNS Cairns
33h 39m2 stops Dallas/Fort Worth Melbourne
Qantas Airways Logo
6:00 am - 11:59 pmCNS  Cairns-STL Lambert-St Louis
32h 59m2 stops Brisbane Los Angeles
$1,801Qantas Airways
Sat, Apr 10 - Sat, Apr 17
Qantas Airways Logo
3:36 pm - 2:50 pmSTL  Lambert-St Louis-CNS Cairns
32h 14m2 stops Dallas/Fort Worth Sydney Kingsford Smith
Qantas Airways Logo
6:00 am - 11:59 pmCNS  Cairns-STL Lambert-St Louis
32h 59m2 stops Brisbane Los Angeles
$1,806Qantas Airways
Fri, Apr 9 - Sat, Apr 17
Qantas Airways Logo
6:00 am - 4:50 pmSTL  Lambert-St Louis-CNS Cairns
42h 50m2 stops Los Angeles Brisbane
Qantas Airways Logo
1:50 pm - 11:59 pmCNS  Cairns-STL Lambert-St Louis
50h 09m2 stops Brisbane Los Angeles
$1,833Qantas Airways
Sun, Feb 14 - Thu, Feb 18
Multiple Airlines Logo
6:11 pm - 2:05 pmSTL  Lambert-St Louis-CNS Cairns
28h 54m2 stops Dallas/Fort Worth Sydney Kingsford Smith
Multiple Airlines Logo
9:25 am - 10:17 pmCNS  Cairns-STL Lambert-St Louis
27h 52m3 stops Brisbane Los Angeles Chicago O'Hare Intl
$1,835Multiple Airlines
Sat, Apr 10 - Fri, Apr 16

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Qantas Airways flights from St. Louis to Cairns

Our best Qantas Airways deals on St. Louis to Cairns flight tickets
Qantas Airways
Feb 6
STL5:00 pmLambert-St Louis
34h 15m
2 stops
CNS7:15 pmCairns
Feb 10
CNS9:15 amCairns
30h 21m
2 stops
STL11:36 pmLambert-St Louis
$1,712
Qantas Airways
Feb 6
STL5:00 pmLambert-St Louis
34h 15m
2 stops
CNS7:15 pmCairns
Feb 10
CNS9:15 amCairns
30h 21m
2 stops
STL11:36 pmLambert-St Louis
$1,713
Qantas Airways
Apr 9
STL3:36 pmLambert-St Louis
32h 14m
2 stops
CNS2:50 pmCairns
Apr 16
CNS6:00 amCairns
32h 59m
2 stops
STL11:59 pmLambert-St Louis
$1,766

United Airlines flights from St. Louis to Cairns

Our best United Airlines deals on St. Louis to Cairns flight tickets
United Airlines
Feb 14
STL1:08 pmLambert-St Louis
33h 47m
3 stops
CNS2:55 pmCairns
Feb 18
CNS6:00 amCairns
28h 17m
2 stops
STL6:17 pmLambert-St Louis
$2,328
United Airlines
Feb 6
STL1:17 pmLambert-St Louis
33h 38m
3 stops
CNS2:55 pmCairns
Feb 10
CNS6:00 amCairns
28h 17m
2 stops
STL6:17 pmLambert-St Louis
$2,451
United Airlines
Feb 6
STL1:17 pmLambert-St Louis
33h 38m
3 stops
CNS2:55 pmCairns
Feb 10
CNS6:00 amCairns
28h 17m
2 stops
STL6:17 pmLambert-St Louis
$2,909

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Cairns that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Sat 2/6

5:00 pm-7:15 pm

2 stops34h 15m

Cairns

Wed 2/10

9:15 am-11:36 pm

2 stops30h 21m

$1,712

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Sat 2/6

5:00 pm-7:15 pm

2 stops34h 15m

Cairns

Wed 2/10

9:15 am-11:36 pm

2 stops30h 21m

$1,713

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Fri 4/9

3:36 pm-2:50 pm

2 stops32h 14m

Cairns

Fri 4/16

6:00 am-11:59 pm

2 stops32h 59m

$1,766

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Fri 4/9

3:36 pm-5:45 pm

2 stops35h 09m

Cairns

Thu 4/15

4:10 pm-11:59 pm

2 stops46h 49m

$1,767

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Sun 4/11

6:11 pm-12:45 pm

2 stops27h 34m

Cairns

Sat 4/17

11:20 am-11:59 pm

2 stops51h 39m

$1,771

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Sat 4/10

3:36 pm-11:50 am

2 stops29h 14m

Cairns

Fri 4/16

4:10 pm-11:59 pm

2 stops46h 49m

$1,775

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Sat 4/10

3:36 pm-4:15 pm

2 stops33h 39m

Cairns

Sat 4/17

6:00 am-11:59 pm

2 stops32h 59m

$1,801

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Fri 4/9

3:36 pm-2:50 pm

2 stops32h 14m

Cairns

Sat 4/17

6:00 am-11:59 pm

2 stops32h 59m

$1,806

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Sun 2/14

6:00 am-4:50 pm

2 stops42h 50m

Cairns

Thu 2/18

1:50 pm-11:59 pm

2 stops50h 09m

$1,833
Quickest round-trip

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Sat 4/10

6:11 pm-2:05 pm

2 stops28h 54m

Cairns

Fri 4/16

9:25 am-10:17 pm

3 stops27h 52m

$1,835

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

Best Price Found

$1,712

Fastest flight time

29h 14m

Direct flights

None
The best flight deal from St. Louis to Cairns found on momondo in the last 72 hours is $1,712
The fastest flight from St. Louis to Cairns takes 29h 14m
There are no direct flights from St. Louis to Cairns. There are no popular flight routes from St. Louis to Cairns.
Search flight deals

Frequently asked questions about flying from St. Louis to Cairns

  • 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 29h 14m, 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 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.

Frequently asked questions about flying from St. Louis to Cairns

  • 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.

Traveling to a place near Cairns?

Book flights to Cairns if you plan to visit one of these locations
Port Douglas
Mission Beach
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.

An easier way to manage your Cairns trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 12/9
Wed 12/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia