Is Frontier cheaper than other airlines flying to St. Louis?

Frontier is the cheapest airline flying to St. Louis with an average return price of $238. Flights to St. Louis with American Airlines cost $400 on average, while United Airlines cost $417.

Which other airlines fly to St. Louis?

Along with Frontier, you can also fly to St. Louis with Southwest, American Airlines, United Airlines, United Airlines, Delta and Southern / Mokulele.

How much is a flight to St. Louis with Frontier?

On average, Frontier flights to St. Louis cost $238 for a round-trip.

Which airport do Frontier flights to St. Louis fly into?

You’ll fly into St. Louis Lambert Airport when flying to St. Louis with Frontier.

Frontier flights to St. Louis (STL) from $28

STL

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Low season	January
High season	November
Cheapest flight	$28
Average price round-trip	$231
Good deal round-trip	$130

Best time to beat the crowds but there is an average 3% increase in price.

Most popular time to fly with an average 7% increase in price.

Flight from Denver to St. Louis

(avg. price over the last 2 weeks)

or less

When to book flights with Frontier to St. Louis

Average price per month

Flight prices as travel date approaches

Is Frontier cheaper than other airlines flying to St. Louis?
Frontier is the cheapest airline flying to St. Louis with an average return price of $238. Flights to St. Louis with American Airlines cost $400 on average, while United Airlines cost $417.
Which other airlines fly to St. Louis?
Along with Frontier, you can also fly to St. Louis with Southwest, American Airlines, United Airlines, United Airlines, Delta and Southern / Mokulele.
How much is a flight to St. Louis with Frontier?
On average, Frontier flights to St. Louis cost $238 for a round-trip.
Which airport do Frontier flights to St. Louis fly into?
You’ll fly into St. Louis Lambert Airport when flying to St. Louis with Frontier.

See more FAQs

The cheapest flight to St. Louis with Frontier found on KAYAK in the last 2 weeks departed from Orlando Airport and cost $76.

6.1

OkayBased on 3,542 verified guest reviews

4.7Entertainment

4.9Food

6.9Crew

6.4Boarding

5.7Comfort

Pros +

Cons -

Show reviews that mention

4.0 Mediocre

Anonymous, May 2021

Pros:I liked that I made my Connection flight.

Cons:More crew involvement in managing what ended up being the slowest onboarding /deplaning I can recall. I do not like being crammed in like sardines again

2.0 Poor

Zulvis, May 2021

Cons:I Never in my life flying again with frontier

7.0 Good

Anonymous, Dec 2019

Pros:Maria at the San Juan counter was very nice and helpful. I recently widowed and was very nervous about flying with Frontier. She put me at ease.

Cons:I have nothing to add here

9.0 Wonderful

Julia, Feb 2020

Pros:Ticket agent and crew were very friendly and professional

Cons:Downloaded the Frontier app, but could not get my boarding pass. Had to go to ticket agent at airport. Baggage charges confusing.

10.0 Wonderful

Inez, Mar 2021

Pros:Crew was great, no time no delays.

Cons:Free movies,

5.5 Fair

Cale, Feb 2020

Pros:Crew was entertaining

Cons:So cramped and hot... awful

2.0 Poor

Anonymous, May 2024

Frontier is a crappy airline nothing about it is honest

10.0 Wonderful

lindsay, Dec 2023

Everything was on time and smoothly run. All employees appeared happy and enjoying their job. The delay in take-off was unrelated to anything in Frontier’s control. I wish there were a caffeine-fee, sugar free soda drink option besides water. There are multiple zero sugar caffeine free options.

8.0 Very good

Kenny, Sep 2023

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

9.0 Wonderful

Anonymous, Jan 2020

Pros:The flight was on-time.

Cons:The seat, again, was the bad news.

Book Cheap flights with Frontier to St. Louis

Recent round-trip flight deals

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Recent one-way flight deals

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1 stopFrontier

7h 27mLGA-STL

$54

12/9Mon

1 stopFrontier

6h 27mIAD-STL

$54

Everything you need to know for your flight to St. Louis

Other airlines flying to St. Louis

Southwest flights to St. Louis

United Airlines flights to St. Louis

Alaska Airlines flights to St. Louis

American Airlines flights to St. Louis

Delta flights to St. Louis

Cabin class types available on flights to St. Louis

First Class flights to Lambert-St Louis, St. Louisfrom $346

Business Class flights to Lambert-St Louis, St. Louisfrom $351

Prem Econ Class flights to Lambert-St Louis, St. Louisfrom $280

Economy Class flights to Lambert-St Louis, St. Louisfrom $60

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STL

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When to book flights with Frontier to St. Louis

FAQs for flying to St. Louis with Frontier

Is Frontier cheaper than other airlines flying to St. Louis?

Which other airlines fly to St. Louis?

How much is a flight to St. Louis with Frontier?

Which airport do Frontier flights to St. Louis fly into?

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