$276 Cheap Flights from St. Louis (STL) to Hilo (ITO)

View $276 flight on Tue, Nov 4, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Hilo Intl. Airport (ITO)

Cheap Flights from St. Louis to Hilo (STL-ITO)

Prices were available within the past 7 days and start at $276 for one-way flights and $490 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Nov 4 - Fri, Nov 7
STL
St. Louis
ITO
Hawaii Island
$490 Roundtrip, found 3 days ago
$490
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 4 from St. Louis to Hawaii Island, returning Fri, Nov 7, priced at $490 found 3 days ago
Hawaiian Airlines
Mon, Jan 26 - Tue, Feb 3
STL
St. Louis
ITO
Hawaii Island
$495 Roundtrip, just found
$495
Roundtrip
just found
Select Hawaiian Airlines flight, departing Mon, Jan 26 from St. Louis to Hawaii Island, returning Tue, Feb 3, priced at $495 just found
Hawaiian Airlines
Tue, Nov 4 - Mon, Nov 17
STL
St. Louis
ITO
Hawaii Island
$500 Roundtrip, found 3 days ago
$500
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 4 from St. Louis to Hawaii Island, returning Mon, Nov 17, priced at $500 found 3 days ago
Hawaiian Airlines
Wed, Jan 28 - Tue, Feb 3
STL
St. Louis
ITO
Hawaii Island
$505 Roundtrip, just found
$505
Roundtrip
just found
Select Hawaiian Airlines flight, departing Wed, Jan 28 from St. Louis to Hawaii Island, returning Tue, Feb 3, priced at $505 just found
Hawaiian Airlines
Tue, Nov 4 - Thu, Nov 20
STL
St. Louis
ITO
Hawaii Island
$510 Roundtrip, found 3 days ago
$510
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 4 from St. Louis to Hawaii Island, returning Thu, Nov 20, priced at $510 found 3 days ago
Hawaiian Airlines
Tue, Nov 4 - Mon, Nov 17
STL
St. Louis
ITO
Hawaii Island
$511 Roundtrip, found 3 days ago
$511
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 4 from St. Louis to Hawaii Island, returning Mon, Nov 17, priced at $511 found 3 days ago
Alaska Airlines
Mon, Nov 3 - Mon, Nov 10
STL
St. Louis
ITO
Hawaii Island
$514 Roundtrip, found 21 hours ago
$514
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Mon, Nov 3 from St. Louis to Hawaii Island, returning Mon, Nov 10, priced at $514 found 21 hours ago
United
Mon, Nov 3 - Mon, Nov 10
STL
St. Louis
ITO
Hawaii Island
$810 Roundtrip, found 21 hours ago
$810
Roundtrip
found 21 hours ago
Select United flight, departing Mon, Nov 3 from St. Louis to Hawaii Island, returning Mon, Nov 10, priced at $810 found 21 hours ago
Southwest Airlines
Thu, Oct 30 - Wed, Nov 5
STL
St. Louis
ITO
Hawaii Island
$849 Roundtrip, found 4 days ago
$849
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Thu, Oct 30 from St. Louis to Hawaii Island, returning Wed, Nov 5, priced at $849 found 4 days ago
Delta
Mon, Nov 24 - Mon, Dec 8
STL
St. Louis
ITO
Hawaii Island
$854 Roundtrip, found 3 days ago
$854
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Nov 24 from St. Louis to Hawaii Island, returning Mon, Dec 8, priced at $854 found 3 days ago

Alternative airports near Hilo

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

Select flight to Hilo Intl. ITO. Cheapest option available. Flights from $1,206
ITO
Hilo Intl.
Cheapest
Flights from $1,206

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Hilo Intl. Airport (ITO) cost?
Snag a cheap one-way flight from $276 or cheap return flight from $490 from Lambert-St. Louis Intl. Airport (STL) to Hilo Intl. Airport (ITO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Hilo Intl. Airport (ITO)?
Planning your getaway for November can help you save, as it's the cheapest month for flights between STL and ITO. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Hilo Intl. Airport (ITO)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from STL to ITO. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Hilo Intl. Airport (ITO)?
Direct flights from Lambert-St. Louis Intl. Airport (STL) to Hilo Intl. Airport (ITO) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to ITO?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary 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 Lambert-St. Louis Intl. Airport (STL) to Hilo Intl. Airport (ITO)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Hilo Intl. Airport (ITO) route, fly before 3 PM. Later flights are 22% more likely to be canceled.**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 Hilo Intl. Airport (ITO) last-minute?
Last-minute bookings from STL to ITO are usually more expensive. To lock in the cheapest rates, start searching for flights ahead of time. That being said, if your travel plans are flexible, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book a STL to ITO flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to ITO flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place will take the stress out of travel planning. Simply secure your flights and choose from our wide range of stays, then personalize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Hilo Intl. Airport (ITO)?
If you booked your STL to ITO flight in the last 24 hours, you may be able to cancel or modify it without any 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, head to our Customer Service portal if you'd like more information.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Hilo Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$489
Distance
4029 mi

Book with confidence

Book with confidence

St. Louis to Hilo Flights

The cheapest times to fly from St. Louis to Hilo

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

 

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

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

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 Hilo in 2025. You can also book with separate airlines for your outbound and return journeys, from $276 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 Hilo 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 Hilo 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 Hilo Flights

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*Available to One Key members.