$138 Cheap Flights from Saginaw (MBS) to St. Louis (STL)

View $138 flight on Tue, Oct 21, 2025Opens in a new window

Popular airlines from Saginaw, MI (MBS-MBS Intl.) to St. Louis Lambert Intl. Airport (STL)

Cheap Flights from Saginaw to St. Louis (MBS-STL)

Prices were available within the past 7 days and start at $138 for one-way flights and $229 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Sep 27 - Mon, Oct 6
MBS
Saginaw
STL
St. Louis
$229 Roundtrip, found 1 day ago
$229
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Sep 27 from Saginaw to St. Louis, returning Mon, Oct 6, priced at $229 found 1 day ago
United
Thu, Sep 4 - Sat, Sep 6
MBS
Saginaw
STL
St. Louis
$234 Roundtrip, found 3 days ago
$234
Roundtrip
found 3 days ago
Select United flight, departing Thu, Sep 4 from Saginaw to St. Louis, returning Sat, Sep 6, priced at $234 found 3 days ago
Delta
Tue, Sep 23 - Mon, Oct 6
MBS
Saginaw
STL
St. Louis
$234 Roundtrip, found 1 day ago
$234
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 23 from Saginaw to St. Louis, returning Mon, Oct 6, priced at $234 found 1 day ago
Delta
Sat, Aug 30 - Fri, Sep 5
MBS
Saginaw
STL
St. Louis
$239 Roundtrip, found 3 days ago
$239
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Aug 30 from Saginaw to St. Louis, returning Fri, Sep 5, priced at $239 found 3 days ago
Delta
Tue, Sep 23 - Sun, Oct 5
MBS
Saginaw
STL
St. Louis
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 23 from Saginaw to St. Louis, returning Sun, Oct 5, priced at $239 found 1 day ago
United
Thu, Oct 9 - Sat, Oct 11
MBS
Saginaw
STL
St. Louis
$246 Roundtrip, found 1 day ago
$246
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 9 from Saginaw to St. Louis, returning Sat, Oct 11, priced at $246 found 1 day ago
United
Thu, Oct 9 - Sat, Oct 11
MBS
Saginaw
STL
St. Louis
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 9 from Saginaw to St. Louis, returning Sat, Oct 11, priced at $249 found 1 day ago
United
Fri, Aug 29 - Mon, Sep 1
MBS
Saginaw
STL
St. Louis
$254 Roundtrip, found 3 days ago
$254
Roundtrip
found 3 days ago
Select United flight, departing Fri, Aug 29 from Saginaw to St. Louis, returning Mon, Sep 1, priced at $254 found 3 days ago
Delta
Thu, Oct 2 - Mon, Oct 13
MBS
Saginaw
STL
St. Louis
$254 Roundtrip, found 3 days ago
$254
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Oct 2 from Saginaw to St. Louis, returning Mon, Oct 13, priced at $254 found 3 days ago
Delta
Wed, Aug 27 - Fri, Sep 5
MBS
Saginaw
STL
St. Louis
$259 Roundtrip, found 3 days ago
$259
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Aug 27 from Saginaw to St. Louis, returning Fri, Sep 5, priced at $259 found 3 days ago

Find the cheapest month to fly from Saginaw (MBS) to St. Louis (STL)

September is typically the cheapest month to fly

From $228 - $493 per traveler.

Graph displaying average flight prices per month

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $388
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $388
Flights from Saginaw (MBS) to St. Louis (STL)
Origin airport
MBS Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Delta, United
Roundtrip price
$228
Distance
464 mi

Saginaw to St. Louis Flights

The cheapest times to fly from Saginaw to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Saginaw to St. Louis are during the month of September. You can find some of the cheapest flights from Saginaw to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Saginaw to St. Louis

Sunday is one of the best days to book for cheap flights from Saginaw to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Saginaw to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Saginaw to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $138 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Saginaw to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Saginaw to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from MBS Intl. Airport (MBS) to Lambert-St. Louis Intl. Airport (STL) cost?
Snag a cheap one-way flight from $138 or cheap return flight from $229 from MBS Intl. Airport (MBS) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from MBS Intl. Airport (MBS) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from MBS to STL is September, when there's less demand. Off-peak season is usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from MBS Intl. Airport (MBS) to Lambert-St. Louis Intl. Airport (STL)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest MBS to STL flight.
How many flights per day from MBS Intl. Airport (MBS) to Lambert-St. Louis Intl. Airport (STL)?
Nonstop flights from MBS Intl. Airport (MBS) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from MBS to STL?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on a range of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from MBS Intl. Airport (MBS) to Lambert-St. Louis Intl. Airport (STL)?
To reach Lambert-St. Louis Intl. Airport (STL) on schedule, pick a flight that leaves from MBS Intl. Airport (MBS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from MBS Intl. Airport (MBS) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until just before your trip to book your flight from MBS to STL often results in higher prices. While it's possible to find some last-minute offers, there's no guarantee. Be flexible with your itinerary for a better chance of landing a bargain.
Is it cheaper to book a MBS to STL flight and hotel package?
You'll generally save money by securing a MBS to STL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After selecting your ideal flights and accommodations, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from MBS Intl. Airport (MBS) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your MBS to STL flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.