What are the cheapest airlines flying from St. Louis to Sault Ste. Marie round-trip?

Currently priced at $663, United Airlines will fly you from St. Louis to Sault Ste. Marie and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $1,029.

What is the cheapest day to fly from St. Louis to Sault Ste. Marie?

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

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

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

Most accurate provider : When it comes to deals on St. Louis-Sault Ste. Marie flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Sault Ste. Marie flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Sault Ste. Marie flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Sault Ste. Marie flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Sault Ste. Marie flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from St. Louis to Sault Ste. Marie that include hotel bookings?

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

How can I find direct flights from St. Louis to Sault Ste. Marie?

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

Can I find deals for business class flights from St. Louis to Sault Ste. Marie?

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

$663+ Flights from St. Louis to Sault Ste. Marie - Compare & Save Big

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Sault Ste. Marie

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$663 (United Airlines)

Provider with most accurate pricing for Lambert-St Louis-Sault Ste. Marie Chippewa County flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-Sault Ste. Marie Chippewa County flights.

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From Lambert-St Louis to Sault Ste. Marie Chippewa County

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Find flight deals from St. Louis to Sault Ste. Marie

Cheapest flights from St. Louis to Sault Ste. Marie
Explore the most affordable flight options available from St. Louis to Sault Ste. Marie. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Sun 6/299:09 amSTL - CIU

1 stop5h 00mUnited Airlines

Sun 7/63:50 pmCIU - STL

1 stop24h 57mUnited Airlines

Deal found 4/29

$663

Sun 6/2910:48 amSTL - CIU

2 stops7h 26mDelta

Sun 7/61:40 pmCIU - STL

2 stops8h 54mDelta

Deal found 4/29

$1,029

Best flights from St. Louis to Sault Ste. Marie
Discover carefully curated flight deals from St. Louis to Sault Ste. Marie that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Sun 6/299:09 amSTL - CIU

1 stop5h 00mUnited Airlines

Sun 7/63:50 pmCIU - STL

1 stop24h 57mUnited Airlines

Deal found 4/29

$663

Sun 6/2910:48 amSTL - CIU

2 stops7h 26mDelta

Sun 7/61:40 pmCIU - STL

2 stops8h 54mDelta

Deal found 4/29

$1,029

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Sault Ste. Marie that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSault Ste. Marie

STL - CIU

STLCIU

Lambert-St Louis

Sun 6/29

9:09 am-3:09 pm

1 stop5h 00m

Sault Ste. Marie Chippewa County

Sun 7/6

3:50 pm-3:47 pm

1 stop24h 57m

$663

St. LouisSault Ste. Marie

STL - CIU

STLCIU

Lambert-St Louis

Sun 6/29

10:48 am-7:14 pm

2 stops7h 26m

Sault Ste. Marie Chippewa County

Sun 7/6

1:40 pm-9:34 pm

2 stops8h 54m

$1,029

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from St. Louis to Sault Ste. Marie

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Sault Ste. Marie in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Sault Ste. Marie flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Sault Ste. Marie flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Sault Ste. Marie flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Sault Ste. Marie flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Sault Ste. Marie flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Sault Ste. Marie

Have a flexible travel schedule? Discover the best time to fly to Sault Ste. Marie from St. Louis 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 Sault Ste. Marie

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,936 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines flying from St. Louis to Sault Ste. Marie round-trip?
Currently priced at $663, United Airlines will fly you from St. Louis to Sault Ste. Marie and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $1,029.
Can I find deals for flights from St. Louis to Sault Ste. Marie that include hotel bookings?
Yes. In addition to deals on St. Louis to Sault Ste. Marie flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Sault Ste. Marie?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Sault Ste. Marie.
Can I find deals for business class flights from St. Louis to Sault Ste. Marie?
Yes. Cheapflights offers flight deals from St. Louis to Sault Ste. Marie 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from St. Louis to Sault Ste. Marie

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$513	Average$981	FlexibilityNo cancel fee	On-timeN/A

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$663+ Cheap flights from St. Louis to Sault Ste. Marie (STL - CIU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Sault Ste. Marie with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Sault Ste. Marie

Most accurate provider

Most trusted provider

Round-trip from

Find flight deals from St. Louis to Sault Ste. Marie

Cheapest flights from St. Louis to Sault Ste. MarieExplore the most affordable flight options available from St. Louis to Sault Ste. Marie. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Explore the most affordable flight options available from St. Louis to Sault Ste. Marie. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Sault Ste. Marie that are best for you.

Compare providers for flights from St. Louis to Sault Ste. Marie

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Sault Ste. Marie in April.

Best time to book a flight from St. Louis to Sault Ste. Marie

Have a flexible travel schedule? Discover the best time to fly to Sault Ste. Marie from St. Louis with our price prediction graph.

Reviews of airlines servicing Sault Ste. Marie

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Sault Ste. Marie. 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 St. Louis to Sault Ste. Marie round-trip?

Can I find deals for flights from St. Louis to Sault Ste. Marie that include hotel bookings?

How can I find direct flights from St. Louis to Sault Ste. Marie?

Can I find deals for business class flights from St. Louis to Sault Ste. Marie?

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 St. Louis to Sault Ste. Marie

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

Top airline flying from St. Louis to Sault Ste. Marie

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Cheapest flights from St. Louis to Sault Ste. Marie
Explore the most affordable flight options available from St. Louis to Sault Ste. Marie. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.