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Sault Ste. Marie

$539+ 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CIU
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from St. Louis to Sault Ste. Marie

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Sault Ste. Marie (CIU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 11, 2025.

Round-trip from

$539
(Delta)
From Lambert-St Louis to Sault Ste. Marie Chippewa County
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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 septiembre 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/256:00 amSTL - CIU
1 stop5h 42mDelta
dom. 9/286:55 amCIU - STL
1 stop5h 35mDelta
Deal found 9/11$539
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/256:00 amSTL - CIU
1 stop5h 42mDelta
lun. 9/291:40 pmCIU - STL
2 stops10h 44mDelta
Deal found 9/9$549

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Sault Ste. Marie that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from St. Louis to Sault Ste. Marie that are best for you.

Fly from

St. Louis

Fly to

Sault Ste. Marie

Route

Depart

Return

Price

St. LouisSault Ste. Marie

STL - CIU

STLCIU

Lambert-St Louis

jue. 9/25

6:00 am-12:42 pm

1 stop5h 42m

Sault Ste. Marie Chippewa County

lun. 9/29

1:40 pm-4:37 pm

1 stop3h 57m

$539

St. LouisSault Ste. Marie

STL - CIU

STLCIU

Lambert-St Louis

jue. 9/25

6:00 am-12:42 pm

1 stop5h 42m

Sault Ste. Marie Chippewa County

dom. 9/28

6:55 am-11:30 am

1 stop5h 35m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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 insights into the airlines that provide service to Sault Ste. Marie. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sault Ste. Marie. Reviews last updated septiembre 11, 2025.
Get a feel of what it's like to fly with Delta 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
7,960 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

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

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.

  • How long is the flight from St. Louis to Sault Ste. Marie?

    Delta can get you from St. Louis to Sault Ste. Marie in just under 5h 42m. Your travel time can differ by up to . St. Louis and Sault Ste. Marie are separated by a distance of 598 mi.

  • What is the cheapest airline to fly from St. Louis to Sault Ste. Marie round-trip?

    Currently priced at $533, 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.

  • 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

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Alternative routes for St. Louis to Sault Ste. Marie

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

Discover the top airline that operate flights from St. Louis to Sault Ste. Marie. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$533Average$1,081FlexibilityNo cancel feeOn-timeN/A

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