STL - ITO

$464 Find Cheap Flights from St. Louis to Hilo - Compare and Save

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 8/31. 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, 0 bags

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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$464
Southwest
Mon 8/31Fri 9/11
STL - ITO • 1 stop
Top airlines
Southwest
Cheapest • from $464 (round-trip)
Alaska Airlines
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Hilo. You'll need at least 2 connections.
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We hope you love your trip to Hilo!
Flight Deals
Booking Insights
Flight 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

Mon, Aug 31 - Fri, Sep 11
Southwest Logo
5:55 am - 12:35 pm
STL
-
ITO
11h 40m
1 stop
Southwest Logo
8:45 pm - 11:40 am
ITO
-
STL
9h 55m
1 stop
$464Southwest
Sun, Aug 30 - Thu, Sep 10
American Airlines Logo
8:00 am - 4:58 pm
STL
-
ITO
13h 58m
2 stops
American Airlines Logo
11:27 am - 11:40 pm
ITO
-
STL
31h 13m
2 stops
$531American Airlines
Mon, Aug 31 - Fri, Sep 11
Southwest Logo
5:55 am - 12:35 pm
STL
-
ITO
11h 40m
1 stop
Southwest Logo
8:45 pm - 11:40 am
ITO
-
STL
9h 55m
1 stop
$554Southwest
Sat, Aug 29 - Thu, Sep 10
American Airlines Logo
8:00 am - 2:25 pm
STL
-
ITO
35h 25m
2 stops
American Airlines Logo
12:48 pm - 11:40 pm
ITO
-
STL
29h 52m
2 stops
$588American Airlines
Mon, Aug 31 - Fri, Sep 11
Southwest Logo
5:55 am - 12:35 pm
STL
-
ITO
11h 40m
1 stop
Southwest Logo
8:45 pm - 3:30 pm
ITO
-
STL
13h 45m
2 stops
$590Southwest
Mon, Aug 31 - Fri, Sep 11
Southwest Logo
5:55 am - 12:35 pm
STL
-
ITO
11h 40m
1 stop
Southwest Logo
8:45 pm - 3:30 pm
ITO
-
STL
13h 45m
2 stops
$605Southwest
Tue, Oct 27 - Wed, Oct 28
Multiple Airlines Logo
7:00 am - 7:12 pm
STL
-
ITO
17h 12m
2 stops
Multiple Airlines Logo
7:44 pm - 3:44 pm
ITO
-
STL
15h 00m
2 stops
$625Multiple Airlines
Mon, Aug 31 - Thu, Sep 10
American Airlines Logo
8:00 am - 4:58 pm
STL
-
ITO
13h 58m
2 stops
American Airlines Logo
6:49 pm - 11:40 pm
ITO
-
STL
23h 51m
2 stops
$635American Airlines
Sun, Aug 30 - Tue, Sep 8
American Airlines Logo
8:00 am - 4:58 pm
STL
-
ITO
13h 58m
2 stops
American Airlines Logo
4:44 pm - 11:40 pm
ITO
-
STL
25h 56m
2 stops
$638American Airlines
Fri, Aug 28 - Wed, Sep 9
American Airlines Logo
8:00 am - 2:25 pm
STL
-
ITO
35h 25m
2 stops
American Airlines Logo
11:27 am - 11:40 pm
ITO
-
STL
31h 13m
2 stops
$640American Airlines
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.

Which airlines provide the cheapest flights from St. Louis to Hilo?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from St. Louis to Hilo were found on Southwest ($464) and American Airlines ($531).

Find deals

Good to know

Cheapest flight$464
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 5 days, the lowest price for a flight from St. Louis to Hilo was $464 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 is the only airline alliance operating flights between St. Louis and Hilo.

  • 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.
7.9
Alaska AirlinesOverall score based on 12511 reviews
7.0Entertainment
7.8Comfort
8.5Crew
7.0Food
8.1Boarding
Airline reviews

The flight attendant and first class were very friendly, efficient, and wanted to make sure that service was great. Highly recommend this airline.

10.0 ExcellentAnonymous, May 2026
SEA - LIH
Read more Alaska Airlines reviews

The flight attendant and first class were very friendly, efficient, and wanted to make sure that service was great. Highly recommend this airline.

Comfortable seats, good drinks with lots of water refills, staff was kind and understanding of my disabled mother!

Made our reservations 6 months ago. When we arrived at the airport we were informed they no longer have assigned seating. We were placed in the last row next to the restrooms. Our seats did not recline. I do not like the fact you are assigning seats. I don’t feel it’s fair. People who make last minute reservations sit in the middle seats. It’s did Southwest now have assigned seating and you assign seats. Even Southwest was more fair than Alaska.

The crew seem untrained and uncertain no one ever checked up on us in our first class cabin. I had to ask for water four times and the lady kept saying she was busy when they weren't really doing anything. Had to walk to the back of the plane to get water for myself. Crew seem new and unexperience. You can tell this by the fumbling they kept making trying to fight. (I miss Hawaiian air.)

Our meal order was screwed up. We had to choose from basic boxes. I was not happy.

We took off on time and rose into the wild blue yonder safely, and landed at our destination safely eighteen minutes early. In between we enjoyed a smooth flight and wonderful service by a great crew. Flight attendants and pilots made sure the trip was a memorable and happy experience. Can’t beat that!

You can standby to get on earlier flight if the seat is open.

Boarding was easy and quick. Staff was very friendly. Service of snacks and drinks by staff was outstanding.

Our flight when we finally got rerouted to a different destination than we were going was fine. But 2 days was taken out of our vacation because our flit was cancelled. We understand mechanical problems and of course don’t want to be on a plane that has mechanical problems.Wish there had been another solution.

Kayak wouldn’t refund me for a flight I was trying to cancel through Kayak. Alaska airlines said I had to cancel through Kayak. I called the customer service line and they couldn’t refund the flight that I booked through Kayak either. You stole my money. You will be hearing from my lawyer.

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)