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

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

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Frequently asked questions

How much does a flight from St. Louis Downtown Airport (CPS) to Daniel K. Inouye Intl. Airport (HNL) cost?
Get a cheap one-way flight or cheap return flight from St. Louis Downtown Airport (CPS) to Daniel K. Inouye Intl. Airport (HNL) 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 St. Louis Downtown Airport (CPS) to Daniel K. Inouye Intl. Airport (HNL)?
is the least expensive month to fly from CPS to HNL. Traveling during an off-peak travel window is often the key to scoring lower fares.
What is the cheapest airline that flies from St. Louis Downtown Airport (CPS) to Daniel K. Inouye Intl. Airport (HNL)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest CPS to HNL flight.
How many flights per day from St. Louis Downtown Airport (CPS) to Daniel K. Inouye Intl. Airport (HNL)?
You'll have to book a flight with a layover when traveling from St. Louis Downtown Airport (CPS) to Daniel K. Inouye Intl. Airport (HNL). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from CPS to HNL?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from St. Louis Downtown Airport (CPS) to Daniel K. Inouye Intl. Airport (HNL)?
To land at Daniel K. Inouye Intl. Airport (HNL) without delays, choose a flight that leaves St. Louis Downtown Airport (CPS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 St. Louis Downtown Airport (CPS) to Daniel K. Inouye Intl. Airport (HNL) last-minute?
Holding off until just before your departure to book your flight from CPS to HNL generally means paying more. While you might find some last-minute deals, there's no guarantee. Keep your travel schedule open for the best chance of landing a bargain.
Is it cheaper to book a CPS to HNL flight and hotel package?
Booking a CPS to HNL flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our extensive range of hotels and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from St. Louis Downtown Airport (CPS) to Daniel K. Inouye Intl. Airport (HNL)?
In most cases, you can modify or cancel your CPS to HNL flight. However, additional fees may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need further information, visit our Customer Service portal.

Travel information

Travel information

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

Book with confidence

Book with confidence

St. Louis to Honolulu Flights

The cheapest times to fly from St. Louis to Honolulu

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

 

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

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

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 Honolulu 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 St. Louis to Honolulu 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 Honolulu 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 Honolulu Flights
*Available to One Key members.