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Hilo

$283+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ITO
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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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 August 18, 2025.

Round-trip from

$514
(Alaska Airlines)

One-way from

$283
(Alaska Airlines)

Popular in

June

Cheapest in

September

Average price

$803
From Lambert-St Louis to Hilo Intl
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One-way flight from Lambert-St Louis to Hilo Intl
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Highest demand for flights based on searches. 20% potential increase in price ($244 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 18, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Mon 9/226:30 pmSTL - ITO
2 stops26h 29mAlaska Airlines
Tue 9/237:00 pmITO - STL
2 stops17h 34mAlaska Airlines
Deal found 8/16$514
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Sun 11/27:00 amSTL - ITO
2 stops17h 30mAlaska Airlines
Tue 11/119:00 pmITO - STL
2 stops14h 18mAlaska Airlines
Deal found 8/15$521
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Thu 9/256:00 amSTL - ITO
2 stops21h 17mAlaska Airlines
Mon 9/297:00 pmITO - STL
2 stops17h 34mAlaska Airlines
Deal found 8/18$528
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Mon 9/226:15 amSTL - ITO
2 stops30h 52mUnited Airlines
Wed 10/18:36 amITO - STL
3 stops32h 24mUnited Airlines
Deal found 8/16$915
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Sat 8/306:00 amSTL - ITO
2 stops14h 59mAlaska Airlines
Sat 9/67:00 pmITO - STL
2 stops23h 59mAlaska Airlines
Deal found 8/16$1,212
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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 stops14h 50mAlaska Airlines
Tue 12/307:44 pmITO - STL
2 stops15h 30mAlaska Airlines
Deal found 8/15$1,771
This United Airlines deal was found by Cheapflights users on 8/17. 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 12/236:30 amSTL - ITO
2 stops15h 20mUnited Airlines
Tue 12/308:41 amITO - STL
2 stops33h 49mUnited Airlines
Deal found 8/17$2,030

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 August 18, 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

Mon 9/22

6:30 pm-3:59 pm

2 stops26h 29m

Hilo Intl

Tue 9/23

7:00 pm-5:34 pm

2 stops17h 34m

$514

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Mon 9/22

6:00 am-10:17 pm

2 stops21h 17m

Hilo Intl

Wed 10/1

9:00 pm-5:34 pm

2 stops15h 34m

$519

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Sun 11/2

7:00 am-8:30 pm

2 stops17h 30m

Hilo Intl

Tue 11/11

9:00 pm-3:18 pm

2 stops14h 18m

$521

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Thu 9/25

6:00 am-10:17 pm

2 stops21h 17m

Hilo Intl

Mon 9/29

7:00 pm-5:34 pm

2 stops17h 34m

$528

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Mon 9/22

6:15 am-8:07 am

2 stops30h 52m

Hilo Intl

Wed 10/1

8:36 am-10:00 pm

3 stops32h 24m

$915

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Sat 8/30

6:00 am-3:59 pm

2 stops14h 59m

Hilo Intl

Sat 9/6

7:00 pm-11:59 pm

2 stops23h 59m

$1,212

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Mon 10/13

6:33 am-5:49 pm

2 stops16h 16m

$283

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Tue 9/2

6:00 am-5:39 pm

2 stops16h 39m

$352

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Sun 8/31

6:00 am-5:39 pm

2 stops16h 39m

$352

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Mon 8/25

6:00 am-5:39 pm

2 stops16h 39m

$377

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 15 results
1
2

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, March is the cheapest month in which you can book a flight from St. Louis to Hilo (average of $330). Flying from St. Louis to Hilo in December is currently the most expensive (average of $726). 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 August 18, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines 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
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.

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?

    Alaska Airlines can get you from St. Louis to Hilo in just under 26h 29m. Your travel time can differ by up to . The distance from St. Louis to Hilo is about 4026 mi.

  • What is the cheapest airline to fly 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. Alaska Airlines is priced at 45% 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, March is the cheapest month in which you can book a flight from St. Louis to Hilo (average of $330). Flying from St. Louis to Hilo in December is currently the most expensive (average of $726). 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

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Alternative routes for St. Louis to Hilo

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Top airline flying from St. Louis to Hilo

Discover the top airline 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$520Average$728FlexibilityNo cancel feeOn-time75%

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