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Cheap flights from Hilo to St. Louis from $694

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Hilo to St. Louis departing on 9/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Hilo to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:58 pm - 2:21 pm
ITO
-
STL
15h 23m
2 stops
Multiple Airlines Logo
6:08 pm - 2:25 pm
STL
-
ITO
25h 17m
2 stops
$694Multiple Airlines
Fri, Sep 18 - Tue, Sep 22
Multiple Airlines Logo
5:30 pm - 2:21 pm
ITO
-
STL
15h 51m
2 stops
Multiple Airlines Logo
6:08 pm - 1:14 pm
STL
-
ITO
24h 06m
2 stops
$704Multiple Airlines
Fri, Sep 18 - Tue, Sep 22
Multiple Airlines Logo
5:58 pm - 2:21 pm
ITO
-
STL
15h 23m
2 stops
Multiple Airlines Logo
6:08 pm - 3:13 pm
STL
-
ITO
26h 05m
2 stops
$731Multiple Airlines
Fri, Sep 18 - Tue, Sep 22
Multiple Airlines Logo
7:44 pm - 2:21 pm
ITO
-
STL
13h 37m
2 stops
Multiple Airlines Logo
6:08 pm - 3:13 pm
STL
-
ITO
26h 05m
2 stops
$744Multiple Airlines
Fri, Sep 18 - Tue, Sep 22
Multiple Airlines Logo
4:44 pm - 2:06 pm
ITO
-
STL
16h 22m
2 stops
Multiple Airlines Logo
6:08 pm - 3:13 pm
STL
-
ITO
26h 05m
2 stops
$814Multiple Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
11:27 am - 3:38 pm
ITO
-
STL
47h 11m
3 stops
United Airlines Logo
6:15 am - 9:54 pm
STL
-
ITO
20h 39m
2 stops
$1,026United Airlines
Fri, Sep 18 - Tue, Sep 22
United Airlines Logo
9:26 am - 2:15 pm
ITO
-
STL
23h 49m
2 stops
United Airlines Logo
4:40 pm - 7:12 pm
STL
-
ITO
31h 32m
3 stops
$1,048United Airlines
Fri, Sep 18 - Tue, Sep 22
United Airlines Logo
7:02 pm - 9:10 pm
ITO
-
STL
21h 08m
2 stops
United Airlines Logo
4:48 pm - 7:03 am
STL
-
ITO
43h 15m
2 stops
$1,111United Airlines
Tue, Jun 16 - Tue, Jun 23
United Airlines Logo
7:02 pm - 12:42 pm
ITO
-
STL
12h 40m
2 stops
United Airlines Logo
9:06 am - 5:54 pm
STL
-
ITO
13h 48m
3 stops
$1,688United Airlines
Tue, Jun 16 - Tue, Jun 23
United Airlines Logo
8:45 pm - 4:33 pm
ITO
-
STL
14h 48m
3 stops
United Airlines Logo
9:06 am - 5:54 pm
STL
-
ITO
13h 48m
3 stops
$2,082United Airlines
Tue, Jun 16 - Tue, Jun 23

United Airlines flights from Hilo to St. Louis

Our best United Airlines deals on Hilo to St. Louis flight tickets
United Airlines
Sep 18
ITO11:27 amHilo Intl
47h 11m
3 stops
STL3:38 pmLambert-St Louis
Sep 22
STL6:15 amLambert-St Louis
20h 39m
2 stops
ITO9:54 pmHilo Intl
$1,026
United Airlines
Sep 18
ITO9:26 amHilo Intl
23h 49m
2 stops
STL2:15 pmLambert-St Louis
Sep 22
STL4:40 pmLambert-St Louis
31h 32m
3 stops
ITO7:12 pmHilo Intl
$1,048
United Airlines
Jun 16
ITO7:02 pmHilo Intl
21h 08m
2 stops
STL9:10 pmLambert-St Louis
Jun 23
STL4:48 pmLambert-St Louis
43h 15m
2 stops
ITO7:03 amHilo Intl
$1,111

momondo Fare Finder

 
Customize your flight search to find flights from Hilo to St. Louis 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, momondo users made 832,500 searches. Data last updated May 23, 2026.
Use the filters below to find and compare flights from Hilo to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HiloSt. Louis

ITO - STL

ITOSTL

Hilo Intl

Fri 9/18

5:58 pm-2:21 pm

2 stops15h 23m

Lambert-St Louis

Tue 9/22

6:08 pm-2:25 pm

2 stops25h 17m

$694

HiloSt. Louis

ITO - STL

ITOSTL

Hilo Intl

Fri 9/18

5:30 pm-2:21 pm

2 stops15h 51m

Lambert-St Louis

Tue 9/22

6:08 pm-1:14 pm

2 stops24h 06m

$704

HiloSt. Louis

ITO - STL

ITOSTL

Hilo Intl

Fri 9/18

5:58 pm-2:21 pm

2 stops15h 23m

Lambert-St Louis

Tue 9/22

6:08 pm-3:13 pm

2 stops26h 05m

$731

HiloSt. Louis

ITO - STL

ITOSTL

Hilo Intl

Fri 9/18

7:44 pm-2:21 pm

2 stops13h 37m

Lambert-St Louis

Tue 9/22

6:08 pm-3:13 pm

2 stops26h 05m

$744

HiloSt. Louis

ITO - STL

ITOSTL

Hilo Intl

Tue 8/25

4:44 pm-2:06 pm

2 stops16h 22m

Lambert-St Louis

Wed 8/26

6:08 pm-3:13 pm

2 stops26h 05m

$814

HiloSt. Louis

ITO - STL

ITOSTL

Hilo Intl

Fri 9/18

11:27 am-3:38 pm

3 stops47h 11m

Lambert-St Louis

Tue 9/22

6:15 am-9:54 pm

2 stops20h 39m

$1,026

HiloSt. Louis

ITO - STL

ITOSTL

Hilo Intl

Fri 9/18

9:26 am-2:15 pm

2 stops23h 49m

Lambert-St Louis

Tue 9/22

4:40 pm-7:12 pm

3 stops31h 32m

$1,048

HiloSt. Louis

ITO - STL

ITOSTL

Hilo Intl

Tue 6/16

7:02 pm-9:10 pm

2 stops21h 08m

Lambert-St Louis

Tue 6/23

4:48 pm-7:03 am

2 stops43h 15m

$1,111
Quickest round-trip

HiloSt. Louis

ITO - STL

ITOSTL

Hilo Intl

Tue 6/16

7:02 pm-12:42 pm

2 stops12h 40m

Lambert-St Louis

Tue 6/23

9:06 am-5:54 pm

3 stops13h 48m

$1,688

HiloSt. Louis

ITO - STL

ITOSTL

Hilo Intl

Tue 6/16

8:45 pm-4:33 pm

3 stops14h 48m

Lambert-St Louis

Tue 6/23

9:06 am-5:54 pm

3 stops13h 48m

$2,082

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Hilo to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Hilo to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hilo to St. Louis (ITO to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hilo to St. Louis

Fastest flight time

15h 23m

Direct flights

None
The fastest flight from Hilo to St. Louis takes 15h 23m
There are no direct flights from Hilo to St. Louis. There are no popular flight routes from Hilo to St. Louis.
Search flight deals

Frequently asked questions about flying from Hilo to St. Louis

  • How far is Hilo Intl to Lambert-St Louis by plane?

    The distance between Hilo Intl and Lambert-St Louis is about 4037.9 mi. In terms of flight time, this usually takes a little over 15h 23m.

  • When did momondo last update prices for flights from Hilo Intl Airport to Lambert-St Louis Airport?

    Prices for flights from Hilo Intl Airport to Lambert-St Louis Airport refresh daily.

  • How old do you have to be to fly from Hilo Intl Airport to Lambert-St Louis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Hilo Intl Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Hilo to St. Louis

  • How do I get Price Alerts for flights from Hilo to St. Louis?

    Price Alerts will notify you by email when the price for flights to St. Louis from Hilo decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Hilo to St. Louis with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Festus
Eureka
Clayton
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Hilo to St. Louis?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Hilo to St. Louis. momondo saves you time and could save you money on your trip.

Can I find flights from Hilo to St. Louis with flexible booking policies on momondo?

Flights from Hilo to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Hilo to St. Louis?

Once all potential Hilo to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Hilo to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Hilo. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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