$1,061 Cheap Flights from St. Louis (STL) to Port Moresby (POM)

View $1,061 flight on Tue, Mar 3, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Port Moresby (POM-Jackson Intl.)

Cheap Flights from St. Louis to Port Moresby (STL-POM)

Prices were available within the past 7 days and start at $1,061 for one-way flights and $2,193 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Oct 2 - Sun, Oct 12
STL
St. Louis
POM
Port Moresby
$2,193 Roundtrip, found 1 hour ago
$2,193
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Oct 2 from St. Louis to Port Moresby, returning Sun, Oct 12, priced at $2,193 found 1 hour ago
American Airlines
Fri, Oct 3 - Sun, Oct 12
STL
St. Louis
POM
Port Moresby
$2,209 Roundtrip, found 1 hour ago
$2,209
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Fri, Oct 3 from St. Louis to Port Moresby, returning Sun, Oct 12, priced at $2,209 found 1 hour ago
American Airlines
Thu, Oct 2 - Fri, Oct 10
STL
St. Louis
POM
Port Moresby
$2,224 Roundtrip, found 1 hour ago
$2,224
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Oct 2 from St. Louis to Port Moresby, returning Fri, Oct 10, priced at $2,224 found 1 hour ago
American Airlines
Fri, Oct 3 - Fri, Oct 10
STL
St. Louis
POM
Port Moresby
$2,240 Roundtrip, found 1 hour ago
$2,240
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Fri, Oct 3 from St. Louis to Port Moresby, returning Fri, Oct 10, priced at $2,240 found 1 hour ago
American Airlines
Sun, Oct 5 - Sun, Oct 12
STL
St. Louis
POM
Port Moresby
$2,294 Roundtrip, found 1 hour ago
$2,294
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sun, Oct 5 from St. Louis to Port Moresby, returning Sun, Oct 12, priced at $2,294 found 1 hour ago
American Airlines
Sun, Oct 5 - Fri, Oct 10
STL
St. Louis
POM
Port Moresby
$2,325 Roundtrip, found 1 hour ago
$2,325
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sun, Oct 5 from St. Louis to Port Moresby, returning Fri, Oct 10, priced at $2,325 found 1 hour ago
American Airlines
Sat, Oct 4 - Sun, Oct 12
STL
St. Louis
POM
Port Moresby
$2,339 Roundtrip, found 1 hour ago
$2,339
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Oct 4 from St. Louis to Port Moresby, returning Sun, Oct 12, priced at $2,339 found 1 hour ago
United
Sat, Mar 14 - Fri, Mar 20
STL
St. Louis
POM
Port Moresby
$2,855 Roundtrip, found 23 hours ago
$2,855
Roundtrip
found 23 hours ago
Select United flight, departing Sat, Mar 14 from St. Louis to Port Moresby, returning Fri, Mar 20, priced at $2,855 found 23 hours ago
Cathay Pacific
Thu, Oct 2 - Thu, Oct 9
STL
St. Louis
POM
Port Moresby
$3,522 Roundtrip, found 1 hour ago
$3,522
Roundtrip
found 1 hour ago
Select Cathay Pacific flight, departing Thu, Oct 2 from St. Louis to Port Moresby, returning Thu, Oct 9, priced at $3,522 found 1 hour ago
Qantas Airways
Thu, Oct 2 - Thu, Oct 9
STL
St. Louis
POM
Port Moresby
$3,863 Roundtrip, found 1 hour ago
$3,863
Roundtrip
found 1 hour ago
Select Qantas Airways flight, departing Thu, Oct 2 from St. Louis to Port Moresby, returning Thu, Oct 9, priced at $3,863 found 1 hour ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Jackson Intl. Airport (POM) cost?
Get a cheap one-way flight from $1,061 or cheap return flight from $2,193 from Lambert-St. Louis Intl. Airport (STL) to Jackson Intl. Airport (POM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Jackson Intl. Airport (POM)?
Planning your getaway for October can help you save, as it's the cheapest month for flights between STL and POM. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Jackson Intl. Airport (POM)?
To find the cheapest airline that'll fly you from STL to POM, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Jackson Intl. Airport (POM)?
There are no daily direct flights available from Lambert-St. Louis Intl. Airport (STL) to Jackson Intl. Airport (POM). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from STL to POM?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Jackson Intl. Airport (POM)?
To reach Jackson Intl. Airport (POM) on schedule, choose a flight that leaves Lambert-St. Louis Intl. Airport (STL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Jackson Intl. Airport (POM) last-minute?
Last-minute bookings from STL to POM are generally more expensive. To lock in the cheapest rates, start looking for flights well ahead of time. That being said, if you can play around with your travel dates, it's possible to land a cheap ticket right before you leave.
Is it cheaper to book a STL to POM flight and hotel package?
Opting for a STL to POM flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our wide range of accommodations and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Jackson Intl. Airport (POM)?
If you booked your STL to POM flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Jackson Intl.
Airlines serving
Qantas Airways
Roundtrip price
$2,193
Distance
8360 mi

Book with confidence

Book with confidence

St. Louis to Port Moresby Flights

The cheapest times to fly from St. Louis to Port Moresby

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Port Moresby are during the month of October. You can find some of the cheapest flights from St. Louis to Port Moresby with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Port Moresby

Sunday is one of the best days to book for cheap flights from St. Louis to Port Moresby: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Port Moresby

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Port Moresby in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,061 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Port Moresby flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Port Moresby airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Port Moresby Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.