HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Hilo

$427+ Cheap flights from St. Louis to Hilo (STL - ITO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ITO
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Hilo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Hilo

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Hilo (ITO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,049
(Alaska Airlines)

One-way from

$427
(Southwest)

Popular in

June

Cheapest in

September

Average price

$745
Provider with most accurate pricing for Lambert-St Louis-Hilo Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Hilo Intl flights.
Search Deals
From Lambert-St Louis to Hilo Intl
Search Deals
One-way flight from Lambert-St Louis to Hilo Intl
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($263 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from St. Louis to Hilo

Cheapest flights from St. Louis to Hilo
Explore the most affordable flight options available from St. Louis to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2025.

This Southwest deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:25 amSTL - ITO
2 stops14h 45mSouthwest
Mon 12/296:00 amITO - STL
2 stops13h 40mSouthwest
Deal found 11/8$924
This Southwest deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:25 amSTL - ITO
2 stops16h 45mSouthwest
Sat 11/156:00 amITO - STL
2 stops12h 25mSouthwest
Deal found 11/10$1,014
This Alaska Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:00 amSTL - ITO
2 stops16h 14mAlaska Airlines
Tue 12/307:44 pmITO - STL
2 stops16h 42mAlaska Airlines
Deal found 11/9$1,796
This American Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/238:00 amSTL - ITO
2 stops17h 15mAmerican Airlines
Sat 1/34:40 pmITO - STL
2 stops17h 18mAmerican Airlines
Deal found 11/8$2,880
This Alaska Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:00 amSTL - ITO
2 stops18h 15mAlaska Airlines
Sat 1/39:00 pmITO - STL
2 stops15h 26mAlaska Airlines
Deal found 11/10$3,001
This United Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/239:00 amSTL - ITO
2 stops14h 59mUnited Airlines
Sat 1/37:44 pmITO - STL
3 stops36h 43mUnited Airlines
Deal found 11/10$4,470

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Hilo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 10, 2025.
Use the filters below to find and compare flights from St. Louis to Hilo that are best for you.

Fly from

St. Louis

Fly to

Hilo

Route

Depart

Return

Price

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Tue 12/23

7:25 am-6:10 pm

2 stops14h 45m

Hilo Intl

Mon 12/29

6:00 am-11:40 pm

2 stops13h 40m

$924

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Thu 11/13

5:25 am-6:10 pm

2 stops16h 45m

Hilo Intl

Sat 11/15

6:00 am-10:25 pm

2 stops12h 25m

$1,014

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Tue 12/23

7:00 am-7:14 pm

2 stops16h 14m

Hilo Intl

Tue 12/30

7:44 pm-4:26 pm

2 stops16h 42m

$1,796

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Tue 12/23

8:00 am-9:15 pm

2 stops17h 15m

Hilo Intl

Sat 1/3

4:40 pm-1:58 pm

2 stops17h 18m

$2,880

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Tue 12/23

7:00 am-7:59 pm

2 stops16h 59m

Hilo Intl

Sat 1/3

7:44 pm-4:26 pm

2 stops16h 42m

$3,001

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Tue 12/23

9:00 am-7:59 pm

2 stops14h 59m

Hilo Intl

Sat 1/3

7:44 pm-12:27 pm

3 stops36h 43m

$4,470

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Tue 12/23

7:25 am-6:10 pm

2 stops14h 45m

$427

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Thu 1/1

6:00 am-7:59 pm

2 stops17h 59m

$433

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Tue 12/23

10:10 pm-5:29 pm

3 stops23h 19m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Compare providers for flights from St. Louis to Hilo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Hilo in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Hilo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Hilo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Hilo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Hilo flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Hilo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Hilo

Have a flexible travel schedule? Discover the best time to fly to Hilo from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Hilo

What is the cheapest month to book a flight from St. Louis to Hilo?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Hilo (average of $274). Flying from St. Louis to Hilo in July is currently the most expensive (average of $633). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Hilo

Get insights into the airlines that provide service to Hilo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hilo. Reviews last updated November 10, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines and Southwest from St. Louis to Hilo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,266 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,266 reviews
Alaska Airlines
8.0
Very good
11,266 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,236 reviews
Alaska Airlines
8.0
Very good
11,266 reviews

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Hilo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Hilo?

    Southwest and Alaska Airlines can get you from St. Louis to Hilo in just under 14h 45m. Your travel time can differ by up to 1h 29m. The distance from St. Louis to Hilo is about 4026 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from St. Louis to Hilo round-trip?

    Our cheapest airline available from St. Louis to Hilo is Alaska Airlines. Our recent data shows that you can find tickets from as low as $520 on this airline. An additional option worth looking into is Southwest, starting at $1,031. Alaska Airlines is priced at 44% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from St. Louis to Hilo that include hotel bookings?

    Yes. In addition to deals on St. Louis to Hilo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Hilo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Hilo.

  • Can I find deals for business class flights from St. Louis to Hilo?

    Yes. Cheapflights offers flight deals from St. Louis to Hilo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Hilo?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Hilo (average of $274). Flying from St. Louis to Hilo in July is currently the most expensive (average of $633). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Hilo

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Honolulu flights
Kansas City to Honolulu flights
St. Louis to Kailua-Kona flights
St. Louis to Kahului flights
Kansas City to Kahului flights
Kansas City to Kailua-Kona flights
St. Louis to Lihue flights
Kansas City to Lihue flights
Springfield to Honolulu flights
Springfield to Lihue flights
Springfield to Kahului flights
Columbia to Honolulu flights
Springfield to Kailua-Kona flights
Kansas City to Hilo flights
Joplin to Kailua-Kona flights
Columbia to Lihue flights
Springfield to Hilo flights
Kansas City to Kapalua flights
Joplin to Honolulu flights
Kansas City to Hana flights
Kansas City to Waimea (Big Island) flights
St. Louis to Hana flights
St. Louis to Kapalua flights
St. Louis to Waimea (Big Island) flights

Top 2 airlines flying from St. Louis to Hilo

Discover the top 2 airlines that operate flights from St. Louis to Hilo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$520Average$685FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$1,031Average$1,111FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.