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Hilo

$476+ Cheap flights from St. Louis to Hilo (STL - ITO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ITO
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$476
(Alaska Airlines)

Popular in

June

Cheapest in

November

Average price

$1,222
From Lambert-St Louis to Hilo Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($271 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 3, 2025.

This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 9/236:00 amSTL - ITO
2 stops16h 39mAlaska Airlines
Thu 9/257:00 pmITO - STL
2 stops17h 34mAlaska Airlines
Deal found 7/2$476
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Sun 9/219:00 amSTL - ITO
3 stops37h 39mUnited Airlines
Sat 9/277:47 amITO - STL
2 stops51h 58mUnited Airlines
Deal found 7/1$1,106

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 July 3, 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 9/23

6:00 am-5:39 pm

2 stops16h 39m

Hilo Intl

Thu 9/25

7:00 pm-2:41 pm

2 stops14h 41m

$476

St. LouisHilo

STL - ITO

STLITO

Lambert-St Louis

Sun 9/21

9:00 am-5:39 pm

3 stops37h 39m

Hilo Intl

Sat 9/27

7:47 am-4:45 pm

2 stops51h 58m

$1,106

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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 $721). 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 July 3, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines and United 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

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 $476 on this airline. An additional option worth looking into is United Airlines, starting at $1,106. Alaska Airlines is priced at 53% 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 $721). 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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