STL - ITO

$420 Find Cheap Flights from St. Louis to Hilo

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Hilo departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Hilo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Hilo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Hilo, as well as popular online travel agencies
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Flights Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Hilo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Hilo

Tue, Sep 23 - Thu, Sep 25
Alaska Airlines Logo
6:00 am - 5:39 pmSTL-ITO
16h 39m2 stops
Alaska Airlines Logo
7:00 pm - 2:39 pmITO-STL
14h 39m2 stops
$420Alaska Airlines
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Tue, Sep 23 - Tue, Oct 21
Alaska Airlines Logo
6:00 am - 10:17 pmSTL-ITO
21h 17m2 stops
Alaska Airlines Logo
6:13 pm - 3:01 pmITO-STL
15h 48m2 stops
$476Alaska Airlines
Find Deal
Mon, Sep 22 - Wed, Oct 1
Alaska Airlines Logo
6:00 am - 10:17 pmSTL-ITO
21h 17m2 stops
Alaska Airlines Logo
9:00 pm - 5:34 pmITO-STL
15h 34m2 stops
$486Alaska Airlines
Find Deal
Tue, Sep 23 - Thu, Sep 25
Alaska Airlines Logo
6:00 am - 10:17 pmSTL-ITO
21h 17m2 stops
Alaska Airlines Logo
7:00 pm - 2:39 pmITO-STL
14h 39m2 stops
$518Alaska Airlines
Find Deal
Wed, Sep 17 - Mon, Sep 22
Alaska Airlines Logo
6:00 am - 10:17 pmSTL-ITO
21h 17m2 stops
Alaska Airlines Logo
5:26 pm - 2:39 pmITO-STL
16h 13m2 stops
$532Alaska Airlines
Find Deal
Wed, Oct 15 - Mon, Oct 20
Alaska Airlines Logo
6:33 am - 10:19 pmSTL-ITO
20h 46m2 stops
Alaska Airlines Logo
6:55 pm - 12:03 amITO-STL
24h 08m2 stops
$575Alaska Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4
Alaska Airlines Logo
6:00 am - 10:17 pmSTL-ITO
21h 17m2 stops
Alaska Airlines Logo
4:28 pm - 2:39 pmITO-STL
17h 11m2 stops
$577Alaska Airlines
Find Deal
Mon, Oct 6 - Fri, Oct 10
Alaska Airlines Logo
6:33 am - 10:19 pmSTL-ITO
20h 46m2 stops
Alaska Airlines Logo
8:35 am - 12:03 amITO-STL
34h 28m2 stops
$584Alaska Airlines
Find Deal
Tue, Sep 23 - Tue, Oct 21
United Airlines Logo
9:00 am - 8:07 amSTL-ITO
28h 07m2 stops
United Airlines Logo
6:00 am - 10:00 pmITO-STL
35h 00m3 stops
$831United Airlines
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Tue, Sep 23 - Thu, Sep 25
United Airlines Logo
9:00 am - 5:39 pmSTL-ITO
13h 39m2 stops
United Airlines Logo
7:47 am - 10:00 pmITO-STL
33h 13m3 stops
$843United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Hilo flights

Get data-powered insights and trends into flights from St. Louis to Hilo to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Hilo?

The average price of all round-trip flights from St. Louis to Hilo clicked on KAYAK for each day over the last 12 months.

When flying from St. Louis to Hilo, you should consider leaving on a Monday and avoid Thursdays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

Find deals

Good to know

Low seasonSeptember
Cheapest flight$420
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from St. Louis to Hilo

When to book flights from St. Louis to Hilo

Are your dates flexible? Find out the best times to travel from St. Louis to Hilo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Hilo

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

    In the last 3 days, the lowest price for a flight from St. Louis to Hilo was $420 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Hilo?

    No, a passport isn't needed to fly from St. Louis to Hilo. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from St. Louis to Hilo?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Hilo, also known as Hilo Intl.

  • Which aircraft models fly most regularly from St. Louis to Hilo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Hilo?

    oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Hilo, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from St. Louis to Hilo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Hilo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Hilo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Hilo from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Hilo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Hilo with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and ITO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Hilo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Hilo from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to Hilo

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Hilo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Hilo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.8Comfort
8.5Crew
7.1Food
8.1Boarding
7.1Entertainment
Airline reviews

Tickets we booked together in January became two different connecting flights. VERY PISSED a about this and a terrible start to our bucket list vacation

2.0 MediocreAnonymous, Jul 2025HNL - KOA
Read more Alaska Airlines reviews

Tickets we booked together in January became two different connecting flights. VERY PISSED a about this and a terrible start to our bucket list vacation

Could not check in online - had to get boarding passes at the ticket counter and our daughter got bumped off our connecting flight. NOT OK!

I needed more space to sleep on an overnight flight.

Our flight time was drastically changed which caused us to lose a day of vacation

Wonderful respectful staff for a short flight late at night...lots of considerations all met!

Flight was delayed which led to missed connection, but rebooked on a more direct flight at the last minute and arrived in Juneau on time with all our luggage. Little stressful and our family seating got split, but it all worked out in the end.

Only issue was the 2 hr delay after an 8 hr layover. Very long day.

Very bad, terrible food and late by 2 hours. Then no to open aircraft doors

Flying on Hawaiian Airlines was good. But, getting a boarding pass was a hassle. I booked what I thought was an Alaska Airlines flight that was actually a Hawaiian Airlines flight. I couldn't check in online. I had to wait for the Hawaiian Airlines counter to open so I could get my boarding pass which was a requirement for me to get in The Club or the Centurion Lounge. (I had no check in luggage so I didn't expect to have to physically check in.) The Alaska Airlines staff blamed the FAA for the problem.

Terrible check in experience, and they ended up losing our bag.

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

Information on your arrival and departure airports

St. Louis (STL)
Hilo (ITO)

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