What are the cheapest airlines flying from Kailua-Kona to St. Louis round-trip?

American Airlines, at $447, was found to be the cheapest airline from Kailua-Kona to St. Louis.Alternate airlines to your destination round-trip include Alaska Airlines and Delta.

What are the cheapest airlines to fly from Kailua-Kona to St. Louis one-way?

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $211. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from Kailua-Kona to St. Louis for a low price.

What is the cheapest month to book a flight from Kailua-Kona to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Kailua-Kona to St. Louis (average of $311). Flying from Kailua-Kona to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Kailua-Kona to St. Louis?

Travelers seeking maximum savings on their Kailua-Kona to St. Louis flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest day to fly round-trip from Kailua-Kona to St. Louis?

Travelers have found that booking a Tuesday departure is the best way to save up to 490% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest time of day to fly from KOA to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kailua-Kona to St. Louis as you normally would.

Can I find deals for flights from Kailua-Kona to St. Louis that include hotel bookings?

Yes. In addition to deals on Kailua-Kona to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Kailua-Kona to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kailua-Kona to St. Louis.

Can I find deals for business class flights from Kailua-Kona to St. Louis?

Yes. Cheapflights offers flight deals from Kailua-Kona to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$211+ Flights from Kailua-Kona to St. Louis

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Cheap flight deals from Kailua-Kona to St. Louis

Round-trip from	$447 (American Airlines)
One-way from	$211 (American Airlines)

From Kona Intl to Lambert-St Louis

Search Deals

One-way flight from Kona Intl to Lambert-St Louis

Search Deals

Find flight deals from Kailua-Kona to St. Louis

Cheapest flights from Kailua-Kona to St. Louis
Explore the most affordable flight options available from Kailua-Kona to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Mon 8/252:59 pmKOA - STL

2 stops13h 01mAmerican Airlines

Fri 9/56:20 amSTL - KOA

1 stop12h 22mAmerican Airlines

Deal found 7/1

$447

Fri 8/229:32 pmKOA - STL

1 stop12h 07mAlaska Airlines

Mon 9/83:35 pmSTL - KOA

1 stop11h 34mAlaska Airlines

Deal found 7/3

$502

Wed 8/279:47 pmKOA - STL

2 stops15h 00mDelta

Thu 9/46:00 amSTL - KOA

2 stops15h 43mDelta

Deal found 6/30

$534

Wed 8/271:30 pmKOA - STL

2 stops16h 10mUnited Airlines

Wed 9/39:17 amSTL - KOA

2 stops15h 07mUnited Airlines

Deal found 7/3

$572

Best flights from Kailua-Kona to St. Louis
Discover carefully curated flight deals from Kailua-Kona to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Mon 8/252:59 pmKOA - STL

2 stops13h 01mAmerican Airlines

Fri 9/56:20 amSTL - KOA

1 stop12h 22mAmerican Airlines

Deal found 7/1

$447

Fri 8/229:32 pmKOA - STL

1 stop12h 07mAlaska Airlines

Mon 9/83:35 pmSTL - KOA

1 stop11h 34mAlaska Airlines

Deal found 7/3

$502

Wed 8/279:47 pmKOA - STL

2 stops15h 00mDelta

Thu 9/46:00 amSTL - KOA

2 stops15h 43mDelta

Deal found 6/30

$534

Wed 8/271:30 pmKOA - STL

2 stops16h 10mUnited Airlines

Fri 9/59:17 amSTL - KOA

2 stops15h 07mUnited Airlines

Deal found 7/3

$592

Last-minute flights from Kailua-Kona to St. Louis
Discover last-minute flight deals from Kailua-Kona to St. Louis. Data last updated July 3, 2025 and is based on user searches.

Fri 8/229:32 pmKOA - STL

1 stop12h 07mAlaska Airlines

Mon 9/83:35 pmSTL - KOA

1 stop11h 34mAlaska Airlines

Deal found 7/3

$502

Mon 8/252:59 pmKOA - STL

2 stops13h 01mAmerican Airlines

Fri 9/56:20 amSTL - KOA

1 stop12h 22mAmerican Airlines

Deal found 7/1

$447

Wed 8/279:47 pmKOA - STL

2 stops15h 00mDelta

Thu 9/46:00 amSTL - KOA

2 stops15h 43mDelta

Deal found 6/30

$534

Wed 8/271:30 pmKOA - STL

2 stops16h 10mUnited Airlines

Wed 9/39:17 amSTL - KOA

2 stops15h 07mUnited Airlines

Deal found 7/3

$572

One-way flights from Kailua-Kona to St. Louis
Search for one-way flight options from Kailua-Kona to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Wed 12/109:25 pmKOA - STL

1 stop12h 08mAmerican Airlines

Deal found 7/1

$211

Thu 10/98:30 pmKOA - STL

1 stop12h 15mSouthwest

Deal found 7/2

$231

Wed 8/137:40 pmKOA - STL

1 stop12h 06mUnited Airlines

Deal found 7/3

$261

Mon 8/48:00 amKOA - STL

1 stop10h 59mAlaska Airlines

Deal found 7/2

$362

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kailua-Kona to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Mon 8/25

2:59 pm-9:00 am

2 stops13h 01m

Lambert-St Louis

Fri 9/5

6:20 am-1:42 pm

1 stop12h 22m

$447

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Fri 8/22

9:32 pm-2:39 pm

1 stop12h 07m

Lambert-St Louis

Mon 9/8

3:35 pm-10:09 pm

1 stop11h 34m

$502

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 8/27

9:47 pm-5:47 pm

2 stops15h 00m

Lambert-St Louis

Thu 9/4

6:00 am-4:43 pm

2 stops15h 43m

$534

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 8/27

1:30 pm-10:40 am

2 stops16h 10m

Lambert-St Louis

Wed 9/3

9:17 am-7:24 pm

2 stops15h 07m

$572

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 12/10

9:25 pm-1:33 pm

1 stop12h 08m

$211

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 10/9

8:30 pm-1:45 pm

1 stop12h 15m

$231

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 8/13

7:40 pm-12:46 pm

1 stop12h 06m

$261

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Mon 8/4

8:00 am-11:59 pm

1 stop10h 59m

$362

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Kailua-Kona to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kailua-Kona with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Kailua-Kona to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,266 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,982 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,861 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What are the cheapest airlines flying from Kailua-Kona to St. Louis round-trip?
American Airlines, at $447, was found to be the cheapest airline from Kailua-Kona to St. Louis.Alternate airlines to your destination round-trip include Alaska Airlines and Delta.
What are the cheapest airlines to fly from Kailua-Kona to St. Louis one-way?
The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $211. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from Kailua-Kona to St. Louis for a low price.
Can I find deals for flights from Kailua-Kona to St. Louis that include hotel bookings?
Yes. In addition to deals on Kailua-Kona to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kailua-Kona to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kailua-Kona to St. Louis.
Can I find deals for business class flights from Kailua-Kona to St. Louis?
Yes. Cheapflights offers flight deals from Kailua-Kona to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Kailua-Kona to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Kailua-Kona to St. Louis (average of $311). Flying from Kailua-Kona to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

O'Fallon

Maryland Heights

Fairview Heights

Collinsville

Eureka

St. Peters

Glencoe

Alton

Festus

Chesterfield

Farmington

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Kailua-Kona to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$529	Average$678	FlexibilityNo cancel fee	On-time69%

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$211+ Cheap flights from Kailua-Kona to St. Louis (KOA - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kailua-Kona to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Kailua-Kona to St. Louis

Round-trip from

One-way from

Find flight deals from Kailua-Kona to St. Louis

Cheapest flights from Kailua-Kona to St. LouisExplore the most affordable flight options available from Kailua-Kona to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Kailua-Kona to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kailua-Kona to St. Louis that are best for you.

Best time to book a flight from Kailua-Kona to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kailua-Kona with our price prediction graph.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Kailua-Kona to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Kailua-Kona to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Kailua-Kona to St. Louis round-trip?

What are the cheapest airlines to fly from Kailua-Kona to St. Louis one-way?

Can I find deals for flights from Kailua-Kona to St. Louis that include hotel bookings?

How can I find direct flights from Kailua-Kona to St. Louis?

Can I find deals for business class flights from Kailua-Kona to St. Louis?

What is the cheapest month to book a flight from Kailua-Kona to St. Louis?

Traveling to a place near Kailua-Kona?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kailua-Kona to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Kailua-Kona to St. Louis

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Kailua-Kona to St. Louis
Explore the most affordable flight options available from Kailua-Kona to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.