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Cheap flights from St. Louis to Kailua-Kona from $221

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 11/26. 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

American Airlines Logo
5:14 am - 3:35 pmSTL-KOA
14h 21m1 stop
American Airlines Logo
6:30 pm - 9:56 amKOA-STL
11h 26m1 stop
$441American Airlines
Find Deal
Mon, Feb 2 - Thu, Feb 12
Alaska Airlines Logo
2:55 pm - 10:35 pmSTL-KOA
11h 40m1 stop
Alaska Airlines Logo
7:13 pm - 1:52 pmKOA-STL
14h 39m2 stops
$446Alaska Airlines
Find Deal
Tue, Feb 3 - Tue, Feb 10
American Airlines Logo
7:09 am - 7:27 pmSTL-KOA
16h 18m2 stops
American Airlines Logo
6:30 pm - 9:56 amKOA-STL
11h 26m1 stop
$447American Airlines
Find Deal
Mon, Feb 2 - Thu, Feb 12
American Airlines Logo
7:09 am - 7:27 pmSTL-KOA
16h 18m2 stops
American Airlines Logo
10:28 pm - 4:14 pmKOA-STL
13h 46m2 stops
$452American Airlines
Find Deal
Tue, Feb 3 - Tue, Feb 10
United Airlines Logo
9:00 am - 3:18 pmSTL-KOA
11h 18m1 stop
United Airlines Logo
2:20 pm - 10:39 amKOA-STL
16h 19m2 stops
$457United Airlines
Find Deal
Wed, Oct 29 - Mon, Nov 3
Alaska Airlines Logo
2:55 pm - 10:35 pmSTL-KOA
11h 40m1 stop
Alaska Airlines Logo
10:00 pm - 1:52 pmKOA-STL
11h 52m1 stop
$461Alaska Airlines
Find Deal
Sun, Feb 1 - Sat, Feb 7
United Airlines Logo
12:25 pm - 8:50 pmSTL-KOA
13h 25m2 stops
United Airlines Logo
11:20 pm - 5:54 pmKOA-STL
14h 34m2 stops
$466United Airlines
Find Deal
Mon, Sep 29 - Tue, Dec 23
Hawaiian Airlines Logo
2:55 pm - 10:35 pmSTL-KOA
11h 40m1 stop
Hawaiian Airlines Logo
8:00 am - 11:56 pmKOA-STL
11h 56m1 stop
$496Hawaiian Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
Hawaiian Airlines Logo
2:55 pm - 10:35 pmSTL-KOA
11h 40m1 stop
Hawaiian Airlines Logo
10:00 pm - 1:52 pmKOA-STL
11h 52m1 stop
$531Hawaiian Airlines
Find Deal
Thu, Jan 15 - Mon, Jan 19
Southwest Logo
5:40 am - 6:10 pmSTL-KOA
17h 30m2 stops
Southwest Logo
8:30 pm - 1:20 pmKOA-STL
11h 50m1 stop
$630Southwest
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Tue, Oct 7 - Mon, Oct 13

American Airlines flights from St. Louis to Kailua-Kona

Our best American Airlines deals on St. Louis to Kailua-Kona flight tickets
American Airlines
Feb 2
STL5:14 amLambert-St Louis
14h 21m
1 stop
KOA3:35 pmKona Intl
Feb 12
KOA6:30 pmKona Intl
11h 26m
1 stop
STL9:56 amLambert-St Louis
$441
Find similar
American Airlines
Feb 2
STL7:09 amLambert-St Louis
16h 18m
2 stops
KOA7:27 pmKona Intl
Feb 12
KOA6:30 pmKona Intl
11h 26m
1 stop
STL9:56 amLambert-St Louis
$447
Find similar
American Airlines
Feb 3
STL7:09 amLambert-St Louis
16h 18m
2 stops
KOA7:27 pmKona Intl
Feb 10
KOA10:28 pmKona Intl
13h 46m
2 stops
STL4:14 pmLambert-St Louis
$452
Find similar

Hawaiian Airlines flights from St. Louis to Kailua-Kona

Our best Hawaiian Airlines deals on St. Louis to Kailua-Kona flight tickets
Hawaiian Airlines
Mar 3
STL2:55 pmLambert-St Louis
11h 40m
1 stop
KOA10:35 pmKona Intl
Mar 4
KOA8:00 amKona Intl
11h 56m
1 stop
STL11:56 pmLambert-St Louis
$496
Find similar
Hawaiian Airlines
Jan 15
STL2:55 pmLambert-St Louis
11h 40m
1 stop
KOA10:35 pmKona Intl
Jan 19
KOA10:00 pmKona Intl
11h 52m
1 stop
STL1:52 pmLambert-St Louis
$531
Find similar

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 September 16, 2025.
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

Mon 2/2

5:14 am-3:35 pm

1 stop14h 21m

Kona Intl

Thu 2/12

6:30 pm-9:56 am

1 stop11h 26m

$441

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Tue 2/3

2:55 pm-10:35 pm

1 stop11h 40m

Kona Intl

Tue 2/10

7:13 pm-1:52 pm

2 stops14h 39m

$446

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Mon 2/2

7:09 am-7:27 pm

2 stops16h 18m

Kona Intl

Thu 2/12

6:30 pm-9:56 am

1 stop11h 26m

$447

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Tue 2/3

7:09 am-7:27 pm

2 stops16h 18m

Kona Intl

Tue 2/10

10:28 pm-4:14 pm

2 stops13h 46m

$452

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Wed 10/29

9:00 am-3:18 pm

1 stop11h 18m

Kona Intl

Mon 11/3

2:20 pm-10:39 am

2 stops16h 19m

$457

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Sun 2/1

2:55 pm-10:35 pm

1 stop11h 40m

Kona Intl

Sat 2/7

10:00 pm-1:52 pm

1 stop11h 52m

$461

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Mon 9/29

12:25 pm-8:50 pm

2 stops13h 25m

Kona Intl

Tue 12/23

11:20 pm-5:54 pm

2 stops14h 34m

$466

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Tue 3/3

2:55 pm-10:35 pm

1 stop11h 40m

Kona Intl

Wed 3/4

8:00 am-11:56 pm

1 stop11h 56m

$496

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Thu 1/15

2:55 pm-10:35 pm

1 stop11h 40m

Kona Intl

Mon 1/19

10:00 pm-1:52 pm

1 stop11h 52m

$531

St. LouisKailua-Kona

STL - KOA

STLKOA

Lambert-St Louis

Tue 10/7

5:40 am-6:10 pm

2 stops17h 30m

Kona Intl

Mon 10/13

8:30 pm-1:20 pm

1 stop11h 50m

$630

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 January is another great option to travel to Kailua-Kona, with average flight prices from St. Louis averaging around $489.

What is the cheapest day to depart on your flight to Kailua-Kona?

The cheapest day to depart on your flight to Kailua-Kona is on a Tuesday when prices can be found for as low as $599. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Kailua-Kona on Saturday is $852.

What is the cheapest time of day to depart on your flight to Kailua-Kona?

Flying to Kailua-Kona from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $546 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Kailua-Kona is in the afternoon when prices are around $1,085.

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 $598 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 $508 on momondo.

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

You could potentially save up to 11% 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 September 2025, prices for St. Louis to Kailua-Kona flights are approximately 12% cheaper 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

Direct flights

None
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 18m.

  • 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 $389Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
American AirlinesPriceFrom $394Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $399Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $422Free CancellationRating
7.9
7,957 reviews
Search Delta flights
SouthwestPriceFrom $481Free CancellationRating
8.0
4,242 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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