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

Currently priced at $534, Delta will fly you from St. Louis to Sault Ste. Marie and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $607.

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.

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.

$534+ Flights from St. Louis to Sault Ste. Marie

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

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

Round-trip from	$534 (Delta)

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

Search Deals

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 July 29, 2025.

Sun 10/122:15 pmSTL - CIU

1 stop3h 59mDelta

Fri 10/173:50 pmCIU - STL

2 stops8h 51mDelta

Deal found 7/28

$534

Wed 8/138:00 amSTL - CIU

1 stop6h 09mUnited Airlines

Sun 8/173:50 pmCIU - STL

1 stop24h 57mUnited Airlines

Deal found 7/29

$607

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 July 29, 2025.

Sun 10/122:15 pmSTL - CIU

1 stop3h 59mDelta

Fri 10/173:50 pmCIU - STL

2 stops8h 51mDelta

Deal found 7/28

$534

Wed 8/138:00 amSTL - CIU

1 stop6h 09mUnited Airlines

Sun 8/173:50 pmCIU - STL

1 stop24h 57mUnited Airlines

Deal found 7/29

$607

Last-minute flights from St. Louis to Sault Ste. Marie
Discover last-minute flight deals from St. Louis to Sault Ste. Marie. Data last updated July 29, 2025 and is based on user searches.

Thu 8/72:15 pmSTL - CIU

1 stop3h 55mDelta

Sun 8/107:00 amCIU - STL

1 stop4h 33mDelta

Deal found 7/28

$784

Thu 8/78:00 amSTL - CIU

1 stop6h 09mUnited Airlines

Sun 8/103:50 pmCIU - STL

1 stop7h 55mUnited Airlines

Deal found 7/27

$1,046

Wed 8/138:00 amSTL - CIU

1 stop6h 09mUnited Airlines

Sun 8/173:50 pmCIU - STL

1 stop24h 57mUnited Airlines

Deal found 7/29

$607

Thu 8/286:40 amSTL - CIU

2 stops29h 02mDelta

Sun 8/316:55 amCIU - STL

1 stop4h 42mDelta

Deal found 7/27

$771

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 10/12

2:15 pm-7:14 pm

1 stop3h 59m

Sault Ste. Marie Chippewa County

Fri 10/17

3:50 pm-11:41 pm

2 stops8h 51m

$534

St. LouisSault Ste. Marie

STL - CIU

STLCIU

Lambert-St Louis

Wed 8/13

8:00 am-3:09 pm

1 stop6h 09m

Sault Ste. Marie Chippewa County

Sun 8/17

3:50 pm-3:47 pm

1 stop24h 57m

$607

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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

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

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,977 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,899 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from St. Louis to Sault Ste. Marie round-trip?
Currently priced at $534, Delta will fly you from St. Louis to Sault Ste. Marie and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $607.
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

Alternative routes for St. Louis to Sault Ste. Marie

Kansas City to O'Hare Intl flights

Kansas City to Midway flights

St. Louis to O'Hare Intl flights

Springfield to O'Hare Intl flights

Kansas City to Detroit flights

Springfield to Midway flights

St. Louis to Detroit flights

St. Louis to Midway flights

Kansas City to Lansing flights

St. Louis to Grand Rapids flights

Kansas City to Traverse City flights

St. Louis to Traverse City flights

Kansas City to Grand Rapids flights

Columbia to O'Hare Intl flights

St. Louis to Pellston flights

Columbia to Grand Rapids flights

Springfield to Detroit flights

Kansas City to Kalamazoo flights

Joplin to O'Hare Intl flights

Kansas City to Bay City flights

Kansas City to Flint flights

Kansas City to South Bend flights

Cape Girardeau to O'Hare Intl flights

St. Louis to Flint flights

Kansas City to Pellston flights

Springfield to Grand Rapids flights

St. Louis to Kalamazoo flights

St. Louis to Lansing flights

Springfield to Lansing flights

Kansas City to Sault Ste. Marie flights

St. Louis to Escanaba flights

Quincy to O'Hare Intl flights

St. Louis to Muskegon flights

Springfield to Bay City flights

Kansas City to Iron Mountain flights

Kansas City to Escanaba flights

Joplin to Detroit flights

Springfield to Traverse City flights

Springfield to Muskegon flights

Springfield to Kalamazoo flights

Joplin to Lansing flights

Columbia to Lansing flights

Springfield to Flint flights

Kansas City to Muskegon flights

St. Louis to Iron Mountain flights

Kansas City to Hancock flights

Joplin to Traverse City flights

St. Louis to Marquette flights

Branson to O'Hare Intl flights

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

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$523	Average$1,081	FlexibilityNo cancel fee	On-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$534+ 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 10/12. 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

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 July 29, 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 July 29, 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.

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

Get a feel of what it's like to fly with Delta and United Airlines from St. Louis to Sault Ste. Marie 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 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

100% Free

Book with Flexibility

Travel Smart

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 July 29, 2025.