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Cheap flights from St. Louis to Kailua-Kona from $223

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Kailua-Kona departing on 3/17. 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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Find the cheapest flights from St. Louis to Kailua-Kona

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:41 am - 4:34 pm
STL
-
KOA
11h 53m
1 stop
United Airlines Logo
8:55 pm - 1:19 pm
KOA
-
STL
12h 24m
1 stop
$422United Airlines
Wed, Feb 18 - Wed, Mar 4
American Airlines Logo
5:12 am - 2:22 pm
STL
-
KOA
14h 10m
1 stop
American Airlines Logo
9:40 pm - 1:47 pm
KOA
-
STL
11h 07m
1 stop
$423American Airlines
Mon, Mar 9 - Mon, Mar 16
Alaska Airlines Logo
6:20 pm - 10:46 am
STL
-
KOA
21h 26m
1 stop
Alaska Airlines Logo
11:56 am - 5:06 pm
KOA
-
STL
24h 10m
1 stop
$425Alaska Airlines
Tue, May 26 - Tue, Jun 2
United Airlines Logo
8:41 am - 4:34 pm
STL
-
KOA
11h 53m
1 stop
United Airlines Logo
8:55 pm - 4:23 pm
KOA
-
STL
15h 28m
2 stops
$428United Airlines
Wed, Feb 18 - Wed, Mar 4
Delta Logo
7:15 am - 6:37 pm
STL
-
KOA
16h 22m
2 stops
Delta Logo
7:40 pm - 1:31 pm
KOA
-
STL
12h 51m
1 stop
$429Delta
Mon, Mar 9 - Mon, Mar 16
Multiple Airlines Logo
6:20 pm - 10:46 am
STL
-
KOA
21h 26m
1 stop
Multiple Airlines Logo
1:42 pm - 5:06 pm
KOA
-
STL
22h 24m
2 stops
$430Multiple Airlines
Tue, May 26 - Tue, Jun 2
American Airlines Logo
8:00 am - 6:59 pm
STL
-
KOA
14h 59m
2 stops
American Airlines Logo
10:11 pm - 3:42 pm
KOA
-
STL
13h 31m
2 stops
$433American Airlines
Wed, Feb 18 - Wed, Mar 4
Delta Logo
6:00 am - 6:37 pm
STL
-
KOA
17h 37m
2 stops
Delta Logo
10:15 pm - 5:07 pm
KOA
-
STL
13h 52m
2 stops
$434Delta
Mon, Mar 9 - Mon, Mar 16
Delta Logo
7:15 am - 2:53 pm
STL
-
KOA
12h 38m
1 stop
Delta Logo
8:50 pm - 11:14 pm
KOA
-
STL
21h 24m
2 stops
$460Delta
Thu, Apr 9 - Thu, Apr 16
United Airlines Logo
8:41 am - 4:34 pm
STL
-
KOA
11h 53m
1 stop
United Airlines Logo
8:55 pm - 1:14 pm
KOA
-
STL
12h 19m
1 stop
$468United Airlines
Tue, Feb 17 - Tue, Feb 24

United Airlines flights from St. Louis to Kailua-Kona

Our best United Airlines deals on St. Louis to Kailua-Kona flight tickets
United Airlines
Feb 18
STL8:41 amLambert-St Louis
11h 53m
1 stop
KOA4:34 pmKona Intl
Mar 4
KOA8:55 pmKona Intl
12h 24m
1 stop
STL1:19 pmLambert-St Louis
$422
United Airlines
Feb 18
STL8:41 amLambert-St Louis
11h 53m
1 stop
KOA4:34 pmKona Intl
Mar 4
KOA8:55 pmKona Intl
15h 28m
2 stops
STL4:23 pmLambert-St Louis
$428
United Airlines
Feb 17
STL8:41 amLambert-St Louis
11h 53m
1 stop
KOA4:34 pmKona Intl
Feb 24
KOA8:55 pmKona Intl
12h 19m
1 stop
STL1:14 pmLambert-St Louis
$468

Delta flights from St. Louis to Kailua-Kona

Our best Delta deals on St. Louis to Kailua-Kona flight tickets
Delta
Mar 9
STL7:15 amLambert-St Louis
16h 22m
2 stops
KOA6:37 pmKona Intl
Mar 16
KOA7:40 pmKona Intl
12h 51m
1 stop
STL1:31 pmLambert-St Louis
$429
Delta
Mar 9
STL6:00 amLambert-St Louis
17h 37m
2 stops
KOA6:37 pmKona Intl
Mar 16
KOA10:15 pmKona Intl
13h 52m
2 stops
STL5:07 pmLambert-St Louis
$434
Delta
Apr 9
STL7:15 amLambert-St Louis
12h 38m
1 stop
KOA2:53 pmKona Intl
Apr 16
KOA8:50 pmKona Intl
21h 24m
2 stops
STL11:14 pmLambert-St Louis
$460

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Kailua-Kona 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 January 29, 2026.
Use the filters below to find and compare flights from St. Louis to Kailua-Kona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Wed 2/18

8:41 am-4:34 pm

1 stop11h 53m

Kona Intl

Wed 3/4

8:55 pm-1:19 pm

1 stop12h 24m

$422

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Mon 3/9

5:12 am-2:22 pm

1 stop14h 10m

Kona Intl

Mon 3/16

9:40 pm-1:47 pm

1 stop11h 07m

$423

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Tue 5/26

6:20 pm-10:46 am

1 stop21h 26m

Kona Intl

Tue 6/2

11:56 am-5:06 pm

1 stop24h 10m

$425

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Wed 2/18

8:41 am-4:34 pm

1 stop11h 53m

Kona Intl

Wed 3/4

8:55 pm-4:23 pm

2 stops15h 28m

$428

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Mon 3/9

7:15 am-6:37 pm

2 stops16h 22m

Kona Intl

Mon 3/16

7:40 pm-1:31 pm

1 stop12h 51m

$429

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Tue 5/26

6:20 pm-10:46 am

1 stop21h 26m

Kona Intl

Tue 6/2

1:42 pm-5:06 pm

2 stops22h 24m

$430

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Wed 2/18

8:00 am-6:59 pm

2 stops14h 59m

Kona Intl

Wed 3/4

10:11 pm-3:42 pm

2 stops13h 31m

$433

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Mon 3/9

6:00 am-6:37 pm

2 stops17h 37m

Kona Intl

Mon 3/16

10:15 pm-5:07 pm

2 stops13h 52m

$434

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Thu 4/9

7:15 am-2:53 pm

1 stop12h 38m

Kona Intl

Thu 4/16

8:50 pm-11:14 pm

2 stops21h 24m

$460

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Tue 2/17

8:41 am-4:34 pm

1 stop11h 53m

Kona Intl

Tue 2/24

8:55 pm-1:14 pm

1 stop12h 19m

$468

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kailua-Kona from

How to get the cheapest flight ticket from St. Louis to Kailua-Kona

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Kailua-Kona?

The cheapest month to fly to Kailua-Kona from St. Louis is in September. Flight prices, which tend to average around $452, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Kailua-Kona, with average flight prices from St. Louis averaging around $507.

How far in advance should I book a flight to Kailua-Kona?

You are more likely to see cheaper flights to Kailua-Kona from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Kailua-Kona for around $620 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kailua-Kona from St. Louis for as low as $516 on momondo.

Can stopping save me money on St. Louis to Kailua-Kona flights?

You could potentially save up to 7% on your flight if you consider stops on a St. Louis to Kailua-Kona flight.

How have St. Louis to Kailua-Kona flight prices changed over time?

As of January 2026, prices for St. Louis to Kailua-Kona flights are approximately 8% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Kailua-Kona

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

Cheap St. Louis to Kailua-Kona (STL to KOA) flight deals and tips

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

Fastest flight time

11h 53m

Direct flights

None
The fastest flight from St. Louis to Kailua-Kona takes 11h 53m
There are no direct flights from St. Louis to Kailua-Kona. There are no popular flight routes from St. Louis to Kailua-Kona.
Search flight deals

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

    There are 4089.9 mi between Lambert-St Louis and Kona Intl. A reasonable flight in good conditions will take 11h 53m.

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

    Prices for flights from Lambert-St Louis Airport to Kona Intl Airport were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Kona Intl Airport?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Kona Intl Airport.

  • What documentation or ID do you need to fly to Kona Intl Airport?

    The necessary travel and health documents for your Kona Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Kailua-Kona?

Best airlines flying from St. Louis to Kailua-Kona

Compare and see reviews for airlines that fly from St. Louis to Kailua-Kona with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $422Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
DeltaPriceFrom $422Free CancellationRating
7.9
8,128 reviews
Search Delta flights
American AirlinesPriceFrom $426Free CancellationRating
7.2
11,205 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $444Free CancellationRating
8.0
11,807 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $481Free CancellationRating
8.0
4,267 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Kailua-Kona?

It is quick and easy to find St. Louis to Kailua-Kona flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Kailua-Kona that suits you.

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

Yes. momondo allows you to filter the results for St. Louis to Kailua-Kona flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Kailua-Kona?

momondo provides multiple filters to help you find the best flight to Kailua-Kona from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Kailua-Kona from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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