Cheap Flights from Honolulu (HNL) to St. Louis (CPS)

Popular airlines from Daniel K. Inouye Intl. Airport (HNL) to St. Louis, MO (CPS-St. Louis Downtown)

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $727
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $727

Frequently asked questions

How much does a flight from Daniel K. Inouye Intl. Airport (HNL) to St. Louis Downtown Airport (CPS) cost?
Grab a cheap one-way flight or cheap return flight from Daniel K. Inouye Intl. Airport (HNL) to St. Louis Downtown Airport (CPS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Daniel K. Inouye Intl. Airport (HNL) to St. Louis Downtown Airport (CPS)?
Flying in may help you find better deals, as it's the cheapest month for flights between HNL and CPS. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Daniel K. Inouye Intl. Airport (HNL) to St. Louis Downtown Airport (CPS)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest HNL to CPS flight.
How many flights per day from Daniel K. Inouye Intl. Airport (HNL) to St. Louis Downtown Airport (CPS)?
There are no daily direct flights available from Daniel K. Inouye Intl. Airport (HNL) to St. Louis Downtown Airport (CPS). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from HNL to CPS?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Daniel K. Inouye Intl. Airport (HNL) to St. Louis Downtown Airport (CPS)?
To avoid possible delays on the Daniel K. Inouye Intl. Airport (HNL) to St. Louis Downtown Airport (CPS) route, aim to fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Daniel K. Inouye Intl. Airport (HNL) to St. Louis Downtown Airport (CPS) last-minute?
Booking your flight from HNL to CPS right before your journey is typically more expensive. However, if you're flexible with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a HNL to CPS flight and hotel package?
Compared with arranging hotels and flights separately, booking a HNL to CPS flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place takes the hassle out of travel planning. Just secure your flights and select from our extensive range of hotels, then personalize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Daniel K. Inouye Intl. Airport (HNL) to St. Louis Downtown Airport (CPS)?
If you booked your HNL to CPS flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Travel information

Origin airport
Daniel K. Inouye Intl.
Destination airport
St. Louis Downtown
Distance
4134 mi

Book with confidence

Book with confidence

Honolulu to St. Louis Flights

The cheapest times to fly from Honolulu to St. Louis

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 Honolulu to St. Louis are during the month of . You can find some of the cheapest flights from Honolulu to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Honolulu to St. Louis

Sunday is one of the best days to book for cheap flights from Honolulu to St. Louis: 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 Honolulu to St. Louis

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 Honolulu to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Honolulu to St. Louis 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 Honolulu to St. Louis 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.

 

Honolulu to St. Louis Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.