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St. Louis

Cheap flights from Saint Paul, MN to St. Louis (STL)

MSP — STL
Nov 2 — Nov 91
Mon 11/2
Mon 11/9
1 adult, Economy
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Cheapflights Tip: The best prices from Saint Paul to Lambert-St Louis are usually found in September or November, booked 77 days in advance, depart on a Tuesday or Saturday and return on a Friday

Find flight deals from Saint Paul to St. Louis

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

February

Cheapest in

September

Average price

$296
Provider with most accurate pricing for Minneapolis St Paul-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Minneapolis St Paul-Lambert-St Louis flights.
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Highest demand for flights based on searches. 9% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Insights

Everything you need to know about your flight from Saint Paul to St. Louis

What is the cheapest time of day to fly from SA1 to STL?

When flying from Saint Paul to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 17% versus a flight in the morning.

What is the cheapest day to fly from Saint Paul to St. Louis?

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

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Southwest,Delta, andFrontier from Saint Paul to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,215 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Edward,Sep 2026

MCO - BWI

Changed flight which was easy. Gate Agent booked me from extra leg room seat on original flight to row 15 on new flight that did not have extra leg room - even though it was an exit row. The row in front of me with extra leg room had an empty seat.
Southwest
7.9
Good
4,215 reviews
Southwest
7.9
Good
4,215 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Edward,Sep 2026

MCO - BWI

Changed flight which was easy. Gate Agent booked me from extra leg room seat on original flight to row 15 on new flight that did not have extra leg room - even though it was an exit row. The row in front of me with extra leg room had an empty seat.
Delta
7.8
Good
8,626 reviews
Southwest
7.9
Good
4,215 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Edward,Sep 2026

MCO - BWI

Changed flight which was easy. Gate Agent booked me from extra leg room seat on original flight to row 15 on new flight that did not have extra leg room - even though it was an exit row. The row in front of me with extra leg room had an empty seat.
Frontier
5.6
Fair
2,563 reviews
Southwest
7.9
Good
4,215 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Edward,Sep 2026

MCO - BWI

Changed flight which was easy. Gate Agent booked me from extra leg room seat on original flight to row 15 on new flight that did not have extra leg room - even though it was an exit row. The row in front of me with extra leg room had an empty seat.

Related info for your journey

  • What airport do you fly into for flights to St. Louis from Saint Paul?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Saint Paul. Booking flights from Saint Paul to Lambert-St Louis (STL) should be relatively easy as there are 8 daily inbound flights from Saint Paul from 3 different airlines.

  • How popular is this Saint Paul to St. Louis flight route?

    Flights from Saint Paul to Lambert-St Louis have been viewed 22 times in the past calendar month.

  • What are the cheapest airlines to fly from Saint Paul to St. Louis one-way?

    One-way options have recently been found by users for as low as $58 on Delta. Other airlines that offer cheap prices include Southwest from $68 and Frontier from $77 one-way.

  • What are the most reliable airlines from Saint Paul to St. Louis?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Saint Paul to St. Louis on time: Sun Country Air (100%), Endeavor Airlines (95%), WestJet (85%).

  • What are the cheapest flights from Saint Paul to St. Louis?

    Looking at all options, your cheapest flight can be booked for $75. While the most popular route (Minneapolis St Paul - Lambert-St Louis) can be booked for $171 on average, our data indicates $342 when flying from Saint Paul to St. Louis.

  • Can I find deals for flights from Saint Paul to St. Louis that include hotel bookings?

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

  • How can I find direct flights from Saint Paul to St. Louis?

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

  • Can I find deals for business class flights from Saint Paul to St. Louis?

    Yes. Cheapflights offers flight deals from Saint Paul 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Chesterfield
Maryland Heights
Collinsville
Edwardsville
Glencoe

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Saint Paul to St. Louis

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$90Average$287FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$117Average$321FlexibilityNo cancel feeOn-time63%
DeltaCheapest$137Average$333FlexibilityNo cancel feeOn-timeN/A

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